{"id":23497,"date":"2025-04-03T23:54:31","date_gmt":"2025-04-03T15:54:31","guid":{"rendered":"https:\/\/moldiecasting.com\/?p=23497"},"modified":"2026-10-09T02:21:42","modified_gmt":"2026-10-08T18:21:42","slug":"types-of-edm-machining","status":"publish","type":"post","link":"https:\/\/moldiecasting.com\/cs\/blog\/types-of-edm-machining\/","title":{"rendered":"Typy obr\u00e1b\u011bn\u00ed EDM: Pr\u016fvodce elektroerozivn\u00edm obr\u00e1b\u011bn\u00edm"},"content":{"rendered":"<p>Ve stroj\u00edrenstv\u00ed se v\u00fdrobci \u010dasto setk\u00e1vaj\u00ed s d\u00edly, kter\u00e9 jsou p\u0159\u00edli\u0161 tvrd\u00e9, p\u0159\u00edli\u0161 tenk\u00e9 nebo zkr\u00e1tka p\u0159\u00edli\u0161 slo\u017eit\u00e9 pro konven\u010dn\u00ed metody obr\u00e1b\u011bn\u00ed. Pr\u00e1v\u011b zde nach\u00e1z\u00ed sv\u00e9 uplatn\u011bn\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (EDM). D\u00edky tomu, \u017ee materi\u00e1l odeb\u00edr\u00e1 pomoc\u00ed \u0159\u00edzen\u00fdch elektrick\u00fdch v\u00fdboj\u016f nam\u00edsto mechanick\u00e9 s\u00edly, umo\u017e\u0148uje tato technika CNC obr\u00e1b\u011bn\u00ed dosahovat velmi t\u011bsn\u00fdch toleranc\u00ed u n\u00e1strojov\u00fdch ocel\u00ed, karbid\u016f, titanu a dal\u0161\u00edch speci\u00e1ln\u00edch slitin.<\/p>\n<p>Proces elektroerozivn\u00edho obr\u00e1b\u011bn\u00ed lze rozd\u011blit do mnoha variant podle zp\u016fsobu obr\u00e1b\u011bn\u00ed; mezi nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 pat\u0159\u00ed \u0159ez\u00e1n\u00ed dr\u00e1tem (wire EDM), hlouben\u00ed (sinker EDM) a vrt\u00e1n\u00ed otvor\u016f.<\/p>\n<h2>Dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (WEDM)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1334\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4.jpg\" alt=\"dr\u00e1tov\u00e9 elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4-18x10.jpg 18w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/4-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Princip \u010dinnosti a nastaven\u00ed<\/h3>\n<p>Dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (WEDM) vyu\u017e\u00edv\u00e1 jako pohyblivou elektrodu pr\u016fb\u011b\u017en\u011b pod\u00e1van\u00fd a napnut\u00fd elektricky nabit\u00fd dr\u00e1t, obvykle z mosazi nebo mosazi s povrchovou \u00fapravou. Dr\u00e1t se nikdy nedot\u00fdk\u00e1 obrobku; m\u00edsto toho je udr\u017eov\u00e1na \u0159\u00edzen\u00e1 mezera, zat\u00edmco syst\u00e9m CNC vede dr\u00e1t po naprogramovan\u00e9 dr\u00e1ze. Obrobek je pono\u0159en v deionizovan\u00e9 vod\u011b, kter\u00e1 slou\u017e\u00ed jako dielektrikum a \u00fa\u010dinn\u011b odplavuje zbytky materi\u00e1lu. Horn\u00ed a spodn\u00ed veden\u00ed dr\u00e1tu umo\u017e\u0148uj\u00ed jeho nakl\u00e1p\u011bn\u00ed \u010di zm\u011bnu \u00fahlu, co\u017e dovoluje vytv\u00e1\u0159et \u0161ikm\u00e9 plochy a zkosen\u00ed.<\/p>\n<p>Gener\u00e1tor stroje moduluje energii, d\u00e9lku trv\u00e1n\u00ed a frekvenci impulz\u016f, a to jak p\u0159i hrubov\u00e1n\u00ed, tak p\u0159i n\u00e1sledn\u00fdch dokon\u010dovac\u00edch pr\u016fchodech. Hrubovac\u00ed \u0159ezy kladou d\u016fraz na rychlost a ponech\u00e1vaj\u00ed p\u0159\u00eddavek materi\u00e1lu pro dokon\u010dovac\u00ed pr\u016fchody, kter\u00e9 zajist\u00ed po\u017eadovanou toleranci a kvalitu povrchu. Kl\u00ed\u010dov\u00e9 je upnut\u00ed: pevn\u00e9 a teplotn\u011b stabiln\u00ed uspo\u0159\u00e1d\u00e1n\u00ed, p\u0159esn\u00e9 vzta\u017en\u00e9 body a vhodn\u00e9 cesty pro proud\u011bn\u00ed kapaliny p\u0159\u00edmo ovliv\u0148uj\u00ed p\u0159esnost i produktivitu.<\/p>\n<h3>Typick\u00e9 aplikace a materi\u00e1ly<\/h3>\n<p>Stroje pro dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed se obvykle pou\u017e\u00edvaj\u00ed pro v\u00fdrobu slo\u017eit\u00fdch profil\u016f: forem pro tlakov\u00e9 lit\u00ed, razn\u00edk\u016f, ozuben\u00fdch kol, dr\u00e1\u017ekov\u00e1n\u00ed, zdravotnick\u00fdch komponent a komplexn\u00edch 2,5D tvar\u016f, kter\u00e9 je obt\u00ed\u017en\u00e9 \u010di nemo\u017en\u00e9 vyrobit fr\u00e9zov\u00e1n\u00edm. Technologie vynik\u00e1 p\u0159i zpracov\u00e1n\u00ed kalen\u00fdch n\u00e1strojov\u00fdch ocel\u00ed (nap\u0159. A2, D2, H13), slinut\u00fdch karbid\u016f, titanu, Inconelu a dal\u0161\u00edch superslitin. Mezi b\u011b\u017en\u00e9 p\u0159\u00edpady pou\u017eit\u00ed pat\u0159\u00ed \u0159ez\u00e1n\u00ed <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/cs\/die-casting-dies\/\">forem pro tlakov\u00e9 lit\u00ed<\/a><\/span>\u00a0z pln\u00e9ho bloku materi\u00e1lu, v\u00fdroba p\u0159esn\u00fdch vlo\u017eek, d\u011blen\u00ed k\u0159ehk\u00fdch \u010di kalen\u00fdch d\u00edl\u016f bez vn\u00e1\u0161en\u00ed vnit\u0159n\u00edho pnut\u00ed a vytv\u00e1\u0159en\u00ed tenk\u00fdch \u017eeber \u010di jemn\u00fdch prvk\u016f bez rizika deformace.<\/p>\n<h3>V\u00fdhody a omezen\u00ed<\/h3>\n<ul>\n<li><strong>P\u0159esnost a jakost povrchu<\/strong>: P\u0159i stabiln\u00edm ustaven\u00ed je b\u011b\u017en\u00e9 dosahovat p\u0159esnosti \u00b10,0001\u20130,0002 palce; jakosti povrchu pod 1 \u00b5m Ra lze dos\u00e1hnout pomoc\u00ed v\u00edcen\u00e1sobn\u00fdch dokon\u010dovac\u00edch pr\u016fchod\u016f.<\/li>\n<li><strong>Minim\u00e1ln\u00ed mechanick\u00e9 nam\u00e1h\u00e1n\u00ed<\/strong>: Absence \u0159ezn\u00fdch sil znamen\u00e1, \u017ee tenk\u00e9 st\u011bny a jemn\u00e9 detaily z\u016fst\u00e1vaj\u00ed neporu\u0161en\u00e9. Tepeln\u011b ovlivn\u011bn\u00e9 oblasti jsou mal\u00e9 a vrstvy p\u0159etaven\u00e9ho materi\u00e1lu tenk\u00e9.<\/li>\n<li><strong>Vhodn\u00e9 pro automatizaci<\/strong>: Funkce automatick\u00e9ho navl\u00e9k\u00e1n\u00ed dr\u00e1tu, obnoven\u00ed procesu po p\u0159etr\u017een\u00ed dr\u00e1tu a integrovan\u00e9 sondy umo\u017e\u0148uj\u00ed spolehliv\u00fd bezobslu\u017en\u00fd provoz, zejm\u00e9na u del\u0161\u00edch profil\u016f.<\/li>\n<\/ul>\n<p><strong>Omezen\u00ed<\/strong>: Dr\u00e1t mus\u00ed m\u00edt fyzick\u00fd p\u0159\u00edstup ke kontu\u0159e, co\u017e znamen\u00e1, \u017ee nelze vytv\u00e1\u0159et pod\u0159ezy ani uzav\u0159en\u00e9 dutiny. Pro zah\u00e1jen\u00ed procesu je nutn\u00fd startovn\u00ed otvor, pokud se po\u010d\u00e1te\u010dn\u00ed bod nenach\u00e1z\u00ed na hran\u011b. U vysok\u00fdch d\u00edl\u016f m\u016f\u017ee b\u00fdt nutn\u00e9 zvolit pe\u010dlivou strategii vyplachov\u00e1n\u00ed, aby se udr\u017eela stabilita a minimalizovala eroze \u010di p\u0159etr\u017een\u00ed dr\u00e1tu.<\/p>\n<h2>Hloub\u00edc\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (Sinker EDM \/ konven\u010dn\u00ed EDM)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1335\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5.jpg\" alt=\"hlouben\u00ed elektroerozivn\u00edm obr\u00e1b\u011bn\u00edm\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5-18x10.jpg 18w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/5-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Elektrody, n\u00e1stroje a tvorba dutin<\/h3>\n<p>Hloub\u00edc\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (Sinker EDM) vyu\u017e\u00edv\u00e1 tvarovanou elektrodu \u2013 obvykle z grafitu nebo m\u011bdi \u2013 upevn\u011bnou na beranu. Elektroda se nastav\u00ed nad negativn\u00ed tvar dutiny a n\u00e1sledn\u011b se \u0159\u00edzen\u00fdm posuvem (servo) \u201ezano\u0159uje\u201c do obrobku, p\u0159i\u010dem\u017e elektrick\u00e9 v\u00fdboje postupn\u011b odstra\u0148uj\u00ed materi\u00e1l. Jako dielektrikum se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 olej na b\u00e1zi uhlovod\u00edk\u016f. Vyu\u017eit\u00ed orbit\u00e1ln\u00edho pohybu (drobn\u00e9 naprogramovan\u00e9 pohyby, nap\u0159\u00edklad po kruhov\u00e9 nebo vektorov\u00e9 dr\u00e1ze) zlep\u0161uje vyplachov\u00e1n\u00ed a kvalitu povrchu a zaru\u010duje dodr\u017een\u00ed kone\u010dn\u00fdch rozm\u011br\u016f bez ne\u017e\u00e1douc\u00edho vyp\u00e1len\u00ed roh\u016f.<\/p>\n<p>V\u00fdb\u011br elektrody hraje kl\u00ed\u010dovou roli: grafit umo\u017e\u0148uje vy\u0161\u0161\u00ed rychlost obr\u00e1b\u011bn\u00ed, odol\u00e1v\u00e1 vysok\u00fdm teplot\u00e1m a hod\u00ed se pro v\u011bt\u0161\u00ed dutiny; m\u011b\u010f dob\u0159e zachov\u00e1v\u00e1 detaily a umo\u017e\u0148uje dos\u00e1hnout jemn\u011bj\u0161\u00ed struktury povrchu. Zku\u0161en\u00ed v\u00fdrobci \u010dasto kombinuj\u00ed v\u00edce elektrod: hrubovac\u00ed pro rychl\u00fd \u00fab\u011br materi\u00e1lu, polodokon\u010dovac\u00ed pro stabilizaci st\u011bn a dokon\u010dovac\u00ed pro dosa\u017een\u00ed p\u0159esn\u00fdch toleranc\u00ed a po\u017eadovan\u00e9 drsnosti (Ra).<\/p>\n<h3>Aplikace, tolerance a kvalita povrchu<\/h3>\n<p>Hloub\u00edc\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed je ide\u00e1ln\u00ed volbou pro v\u00fdrobu 3D dutin forem, reli\u00e9f\u016f, \u017eeber, hlubok\u00fdch kapes, log a geometri\u00ed, ke kter\u00fdm se nelze dostat pomoc\u00ed b\u011b\u017en\u00e9ho \u0159ezac\u00edho dr\u00e1tu. V z\u00e1vislosti na velikosti a nastaven\u00ed jsou re\u00e1ln\u00e9 tolerance v rozmez\u00ed \u00b10,0002\u20130,001 palce, p\u0159i\u010dem\u017e p\u0159i dokon\u010dovac\u00edm obr\u00e1b\u011bn\u00ed lze dos\u00e1hnout drsnosti povrchu pod 1 \u03bcm Ra. Vzhledem k tomu, \u017ee geometrii ur\u010duje elektroda, jsou typick\u00fdmi p\u0159\u00edklady vyu\u017eit\u00ed <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/cs\/blog\/metal-injection-molding-vs-die-casting\/\">vst\u0159ikovac\u00ed formy<\/a><\/span> a n\u00e1stroje pro tlakov\u00e9 lit\u00ed.<\/p>\n<h3>V\u00fdhody a omezen\u00ed<\/h3>\n<ul>\n<li class=\"ds-markdown-paragraph\"><strong>Skute\u010dn\u00e9 3D mo\u017enosti:<\/strong>\u00a0Hlavn\u00ed p\u0159ednost\u00ed je schopnost vytv\u00e1\u0159et slep\u00e9 dutiny, pod\u0159ezy a slo\u017eit\u00e9 trojrozm\u011brn\u00e9 tvary, kter\u00e9 nelze vyrobit pomoc\u00ed dr\u00e1tov\u00e9ho \u0159ez\u00e1n\u00ed (Wire EDM).<\/li>\n<li class=\"ds-markdown-paragraph\"><strong>Vynikaj\u00edc\u00ed kvalita povrchu:<\/strong>\u00a0Umo\u017e\u0148uje dos\u00e1hnout mimo\u0159\u00e1dn\u011b jemn\u00e9 povrchov\u00e9 \u00fapravy i u slo\u017eit\u00fdch kontur, \u010d\u00edm\u017e \u010dasto odpad\u00e1 nutnost ru\u010dn\u00edho le\u0161t\u011bn\u00ed.<\/li>\n<\/ul>\n<p><strong>Omezen\u00ed<\/strong>: Tento neust\u00e1l\u00fd \u00fabytek materi\u00e1lu elektrody vy\u017eaduje kompenzaci opot\u0159eben\u00ed ji\u017e ve f\u00e1zi programov\u00e1n\u00ed a \u010dasto i v\u00fdrobu n\u011bkolika elektrod pro jednu zak\u00e1zku. Rychlost objemov\u00e9ho \u00fab\u011bru materi\u00e1lu je obecn\u011b ni\u017e\u0161\u00ed ne\u017e u dr\u00e1tov\u00e9ho \u0159ez\u00e1n\u00ed, co\u017e \u010din\u00ed tuto metodu m\u00e9n\u011b efektivn\u00ed pro odeb\u00edr\u00e1n\u00ed velk\u00e9ho mno\u017estv\u00ed materi\u00e1lu. Ka\u017ed\u00e1 specifick\u00e1 dutina nav\u00edc vy\u017eaduje vlastn\u00ed elektrodu a hlubok\u00e9, \u00fazk\u00e9 prvky \u010dasto komplikuj\u00ed v\u00fdplach dielektrikem, co\u017e m\u016f\u017ee negativn\u011b ovlivnit rychlost i p\u0159esnost.<\/p>\n<h2>Hlouben\u00ed otvor\u016f metodou EDM (vysokorychlostn\u00ed vrt\u00e1n\u00ed \/ vrt\u00e1n\u00ed mal\u00fdch otvor\u016f)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1336\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6.jpg\" alt=\"vrt\u00e1n\u00ed otvor\u016f elektroerozivn\u00edm obr\u00e1b\u011bn\u00edm\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6-18x10.jpg 18w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/6-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Princip procesu<\/h3>\n<p class=\"ds-markdown-paragraph\">Z\u00e1kladem procesu hlouben\u00ed otvor\u016f metodou EDM je vysokorychlostn\u00ed rotuj\u00edc\u00ed trubkov\u00e1 elektroda, obvykle vyroben\u00e1 z mosazi, m\u011bdi nebo m\u011b\u010f-wolframu odoln\u00e9ho proti opot\u0159eben\u00ed. Tato dut\u00e1 trubka ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f funguje jako katoda, zat\u00edmco obrobek slou\u017e\u00ed jako anoda. Gener\u00e1tor p\u0159iv\u00e1d\u00ed vysokofrekven\u010dn\u00ed elektrick\u00e9 impulzy do mezery mezi nimi, \u010d\u00edm\u017e vznik\u00e1 \u0159ada \u0159\u00edzen\u00fdch jisker, kter\u00e9 odpa\u0159uj\u00ed a eroduj\u00ed materi\u00e1l.<\/p>\n<p class=\"ds-markdown-paragraph\">Kl\u00ed\u010dov\u00fdm prvkem procesu je dielektrick\u00e1 kapalina pod tlakem \u2013 obvykle deionizovan\u00e1 voda \u2013, kter\u00e1 je \u010derp\u00e1na st\u0159edem rotuj\u00edc\u00ed elektrody. Pln\u00ed dv\u011b z\u00e1sadn\u00ed funkce: siln\u00fdm proudem vyplavuje erodovan\u00e9 \u010d\u00e1stice z \u00fazk\u00e9 mezery, \u010d\u00edm\u017e zabra\u0148uje zkratu, a z\u00e1rove\u0148 deionizuje kan\u00e1lek, \u010d\u00edm\u017e udr\u017euje stabiln\u00ed podm\u00ednky pro vznik jisker. Rotace elektrody zaji\u0161\u0165uje rovnom\u011brn\u00e9 opot\u0159eben\u00ed a d\u00edky stabilizaci trubice napom\u00e1h\u00e1 k vytvo\u0159en\u00ed rovn\u011bj\u0161\u00edho otvoru. Servosyst\u00e9m neust\u00e1le upravuje polohu elektrody tak, aby p\u0159i prohlubov\u00e1n\u00ed otvoru udr\u017eoval p\u0159esnou jiskrovou mezeru; to umo\u017e\u0148uje vytv\u00e1\u0159et hlubok\u00e9 otvory o mal\u00e9m pr\u016fm\u011bru v kalen\u00fdch materi\u00e1lech bez rizika pr\u016fhybu n\u00e1stroje, kter\u00fd by p\u0159edstavoval probl\u00e9m p\u0159i konven\u010dn\u00edm obr\u00e1b\u011bn\u00ed.<\/p>\n<h3>P\u0159\u00edklady pou\u017eit\u00ed: Zav\u00e1d\u011bc\u00ed a chladic\u00ed otvory<\/h3>\n<p>V\u00fdrobci b\u011b\u017en\u011b vyu\u017e\u00edvaj\u00ed elektroerozivn\u00ed vrt\u00e1n\u00ed (EDM) k vytv\u00e1\u0159en\u00ed zav\u00e1d\u011bc\u00edch otvor\u016f pro n\u00e1sledn\u00e9 dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (WEDM) v p\u0159\u00edpadech, kdy profil za\u010d\u00edn\u00e1 mimo okraj obrobku. Tato metoda je rovn\u011b\u017e standardem pro v\u00fdrobu mal\u00fdch chladic\u00edch otvor\u016f s vysok\u00fdm pom\u011brem hloubky k pr\u016fm\u011bru v lopatk\u00e1ch turb\u00edn, pro vytv\u00e1\u0159en\u00ed vzor\u016f otvor\u016f pro efuzn\u00ed a filmov\u00e9 chlazen\u00ed i pro p\u0159esn\u00e9 otvory v komponentech pro medic\u00ednu \u010di mikrofluidiku. Vhodn\u00fdmi materi\u00e1ly jsou nap\u0159\u00edklad superslitiny na b\u00e1zi niklu, titan a kalen\u00e9 oceli, pokud jsou elektricky vodiv\u00e9.<\/p>\n<h3>Rychlost, p\u0159esnost a omezen\u00ed<\/h3>\n<ul>\n<li class=\"ds-markdown-paragraph\"><strong>Rychlost vrt\u00e1n\u00ed otvor\u016f:<\/strong>\u00a0Elektroerozivn\u00ed vrt\u00e1n\u00ed je mimo\u0159\u00e1dn\u011b rychl\u00e9 p\u0159i vytv\u00e1\u0159en\u00ed mal\u00fdch a hlubok\u00fdch otvor\u016f, zejm\u00e9na v hou\u017eevnat\u00fdch, elektricky vodiv\u00fdch materi\u00e1lech, kde je konven\u010dn\u00ed vrt\u00e1n\u00ed pomal\u00e9 nebo zcela nemo\u017en\u00e9. Rychlost procesu je ur\u010dov\u00e1na p\u0159edev\u0161\u00edm tlakem dielektrika, materi\u00e1lem elektrody a konkr\u00e9tn\u00ed obr\u00e1b\u011bnou slitinou, co\u017e umo\u017e\u0148uje rychl\u00e9 vytv\u00e1\u0159en\u00ed zav\u00e1d\u011bc\u00edch otvor\u016f i efektivn\u00ed v\u00fdrobu cel\u00fdch pol\u00ed otvor\u016f.<\/li>\n<li class=\"ds-markdown-paragraph\"><strong>P\u0159esnost pr\u016fm\u011bru: <\/strong>Tento proces vynik\u00e1 p\u0159esnost\u00ed polohov\u00e1n\u00ed a schopnost\u00ed vytv\u00e1\u0159et rovn\u00e9 otvory s vysok\u00fdm pom\u011brem hloubky k pr\u016fm\u011bru (\u0161t\u00edhlostn\u00edm pom\u011brem) a pr\u016fm\u011bry ji\u017e od 0,015 palce.<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong>Omezen\u00ed:<\/strong> D\u016fraz na p\u0159esnost s sebou nese i ur\u010dit\u00e9 nev\u00fdhody. Kvalita povrchu uvnit\u0159 otvor\u016f je obecn\u011b hrub\u0161\u00ed ne\u017e u dr\u00e1tov\u00e9ho \u0159ez\u00e1n\u00ed (WEDM) nebo p\u0159i dokon\u010dovac\u00edch pr\u016fchodech u hloub\u00edc\u00edho elektroerozivn\u00edho obr\u00e1b\u011bn\u00ed (sinker EDM). Proces je nav\u00edc omezen p\u0159ev\u00e1\u017en\u011b na rovn\u00e9 otvory a neumo\u017e\u0148uje vytv\u00e1\u0159et zak\u0159iven\u00e9 tvary. Intenzivn\u00ed lok\u00e1ln\u00ed zah\u0159\u00edv\u00e1n\u00ed m\u016f\u017ee tak\u00e9 zanechat vrstvu p\u0159etaven\u00e9ho materi\u00e1lu a drobn\u00e9 ot\u0159epy v m\u00edstech vstupu a v\u00fdstupu elektrody, co\u017e si u kritick\u00fdch aplikac\u00ed m\u016f\u017ee vy\u017e\u00e1dat n\u00e1sledn\u00e9 dokon\u010dovac\u00ed operace.<\/p>\n<h2>Specializovan\u00e9 stroje pro elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed a hybridn\u00ed procesy<\/h2>\n<h3>Elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed s p\u0159\u00edm\u011bs\u00ed pr\u00e1\u0161ku (PMEDM)<\/h3>\n<p>D\u00edky p\u0159id\u00e1n\u00ed vodiv\u00e9ho nebo polovodiv\u00e9ho pr\u00e1\u0161ku do dielektrick\u00e9 kapaliny dok\u00e1\u017ee tato technika roz\u0161\u00ed\u0159it kan\u00e1l v\u00fdboje, sn\u00ed\u017eit hustotu energie a zlep\u0161it kvalitu povrchu, a z\u00e1rove\u0148 omezit opot\u0159eben\u00ed elektrody. Metoda PMEDM je vhodn\u00e1 pro dokon\u010dovac\u00ed operace u forem nebo sou\u010d\u00e1st\u00ed, kde z\u00e1le\u017e\u00ed na celistvosti povrchu. Vy\u017eaduje v\u0161ak filtraci a \u0159\u00edzen\u00ed procesu pro udr\u017een\u00ed st\u00e1l\u00e9 koncentrace pr\u00e1\u0161ku.<\/p>\n<h3>Elektroerozivn\u00ed fr\u00e9zov\u00e1n\u00ed \/ orbit\u00e1ln\u00ed pohyb pro 3D tvary<\/h3>\n<p>Tento postup, naz\u00fdvan\u00fd tak\u00e9 hloub\u00edc\u00ed elektroerozivn\u00ed fr\u00e9zov\u00e1n\u00ed, vyu\u017e\u00edv\u00e1 malou elektrodu pohybuj\u00edc\u00ed se po 3D dr\u00e1ze (v\u010detn\u011b orbit\u00e1ln\u00edho pohybu) k vytv\u00e1\u0159en\u00ed slo\u017eit\u00fdch tvar\u016f \u2013 podobn\u011b jako kulov\u00e1 fr\u00e9za, av\u0161ak bez p\u016fsoben\u00ed \u0159ezn\u00fdch sil. Je efektivn\u00ed pro jemn\u00e9 \u010di t\u011b\u017eko p\u0159\u00edstupn\u00e9 prvky a umo\u017e\u0148uje sn\u00ed\u017eit po\u010det pot\u0159ebn\u00fdch speci\u00e1ln\u00edch elektrod.<\/p>\n<h2>Srovn\u00e1n\u00ed v\u00fdkonu r\u016fzn\u00fdch typ\u016f stroj\u016f pro elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (EDM)<\/h2>\n<h3>\u0158ezn\u00e9 rychlosti a faktory ovliv\u0148uj\u00edc\u00ed dobu cyklu<\/h3>\n<ul>\n<li><strong>Dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (Wire EDM)<\/strong>: Vysok\u00e1 relativn\u00ed rychlost p\u0159i obvodov\u00fdch \u0159ezech, zejm\u00e9na u dlouh\u00fdch profil\u016f s konstantn\u00ed v\u00fd\u0161kou. Doba cyklu z\u00e1vis\u00ed na v\u00fd\u0161ce d\u00edlu, d\u00e9lce obrysu, po\u010dtu dokon\u010dovac\u00edch pr\u016fchod\u016f a zp\u016fsobu v\u00fdplachu.<\/li>\n<li><strong>Hlouben\u00ed (Sinker EDM)<\/strong>: St\u0159edn\u00ed rychlost \u00fab\u011bru materi\u00e1lu: dobu ovliv\u0148uje plocha elektrody, strategie orbit\u00e1ln\u00edho pohybu a v\u00fdplach. V\u00fdroba elektrody prodlu\u017euje celkovou dobu p\u0159\u00edpravy.<\/li>\n<li><strong>Vrt\u00e1n\u00ed otvor\u016f<\/strong>: Rychl\u00e9 u mal\u00fdch a hlubok\u00fdch otvor\u016f: propustnost z\u00e1vis\u00ed na opot\u0159eben\u00ed elektrody, tlaku dielektrika a materi\u00e1lu (slitin\u011b).<\/li>\n<\/ul>\n<h3>P\u0159esnost, tolerance a jakost povrchu (Ra)<\/h3>\n<ul>\n<li><strong>Dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (Wire EDM)<\/strong>: Velmi vysok\u00e1 p\u0159esnost: b\u011b\u017en\u011b \u00b10,0001\u20130,0002 palce; p\u0159i v\u00edcen\u00e1sobn\u00fdch dokon\u010dovac\u00edch pr\u016fchodech lze dos\u00e1hnout drsnosti Ra &lt;1 \u03bcm.<\/li>\n<li><strong>Hlouben\u00ed (Sinker EDM)<\/strong>: Vysok\u00e1 p\u0159esnost: typicky \u00b10,0002\u20130,001 palce; p\u0159i dokon\u010dovac\u00edm obr\u00e1b\u011bn\u00ed s optimalizovanou energi\u00ed a orbit\u00e1ln\u00edm pohybem lze dos\u00e1hnout drsnosti Ra &lt;1 \u03bcm.<\/li>\n<li><strong>Vrt\u00e1n\u00ed otvor\u016f<\/strong>: Vysok\u00e1 polohov\u00e1 p\u0159esnost um\u00edst\u011bn\u00ed otvor\u016f; jakost povrchu je ve srovn\u00e1n\u00ed s dr\u00e1tov\u00fdm \u0159ez\u00e1n\u00edm \u010di hlouben\u00edm ni\u017e\u0161\u00ed.<\/li>\n<\/ul>\n<h3>Tepeln\u00e9 \u00fa\u010dinky: Vrstva p\u0159elitku, mikrotrhliny a tepeln\u011b ovlivn\u011bn\u00e1 z\u00f3na (HAZ)<\/h3>\n<p>V\u0161echny procesy EDM vytv\u00e1\u0159ej\u00ed tenkou vrstvu p\u0159elitku s potenci\u00e1ln\u00edmi mikrotrhlinami, a\u010dkoli tepeln\u011b ovlivn\u011bn\u00e1 z\u00f3na (HAZ) je obecn\u011b m\u011blk\u00e1. Tomu lze p\u0159edej\u00edt n\u00edzkoenergetick\u00fdmi dokon\u010dovac\u00edmi pr\u016fchody, optimalizovan\u00fdmi parametry pulzu, spr\u00e1vn\u00fdm proplachov\u00e1n\u00edm a le\u0161t\u011bn\u00edm nebo lehk\u00fdm brou\u0161en\u00edm po obr\u00e1b\u011bn\u00ed, pokud je kritick\u00e1 integrita povrchu (nap\u0159. leteck\u00e9 sou\u010d\u00e1sti n\u00e1chyln\u00e9 k \u00fanav\u011b).<\/p>\n<div dir=\"ltr\" align=\"left\">\n<table style=\"width: 95.9392%; height: 601px;\">\n<colgroup>\n<col style=\"width: 15.1163%;\" width=\"104\" \/>\n<col style=\"width: 15.1163%;\" width=\"104\" \/>\n<col style=\"width: 15.1163%;\" width=\"104\" \/>\n<col style=\"width: 15.1163%;\" width=\"104\" \/>\n<col style=\"width: 15.1163%;\" width=\"104\" \/>\n<col style=\"width: 15.1163%;\" width=\"104\" \/><\/colgroup>\n<thead>\n<tr>\n<th scope=\"col\">Typ EDM<\/th>\n<th scope=\"col\">Rychlost<\/th>\n<th scope=\"col\">P\u0159esnost<\/th>\n<th scope=\"col\">Jakost povrchu (Ra)<\/th>\n<th scope=\"col\">Tepeln\u00e9 \u00fa\u010dinky<\/th>\n<th scope=\"col\">Typick\u00e9 aplikace<\/p>\n<p>\u00a0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Dr\u00e1tov\u00e9 \u0159ez\u00e1n\u00ed (Wire EDM)<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Velmi vysok\u00e1<\/td>\n<td>&lt;1 \u03bcm<\/td>\n<td>Minim\u00e1ln\u00ed tepeln\u011b ovlivn\u011bn\u00e1 z\u00f3na (HAZ), tenk\u00e1 p\u0159etaven\u00e1 vrstva<\/td>\n<td>Raznice, st\u0159i\u017en\u00edky, profily<\/td>\n<\/tr>\n<tr>\n<td>Hlouben\u00ed (Sinker EDM)<\/td>\n<td>St\u0159edn\u00ed<\/td>\n<td>Vysok\u00e1<\/td>\n<td>&lt;1 \u03bcm<\/td>\n<td>Ur\u010dit\u00e1 p\u0159etaven\u00e1 vrstva, mo\u017en\u00e9 mikrotrhliny<\/td>\n<td>Dutiny forem, reli\u00e9fy<\/td>\n<\/tr>\n<tr>\n<td>Vrt\u00e1n\u00ed otvor\u016f<\/td>\n<td>Vysok\u00e1\/st\u0159edn\u00ed<\/td>\n<td>Vysok\u00e1<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<td>P\u0159ev\u00e1\u017en\u011b v m\u00edst\u011b vstupu a v\u00fdstupu<\/td>\n<td>Startovac\u00ed otvory, chladic\u00ed otvory<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>V\u00fdb\u011br metody elektroerozivn\u00edho obr\u00e1b\u011bn\u00ed (EDM) pro va\u0161e pot\u0159eby<\/h2>\n<p>Nyn\u00ed, kdy\u017e jste se sezn\u00e1mili s r\u016fzn\u00fdmi typy EDM, je na \u010dase si je shrnout pro budouc\u00ed rozhodov\u00e1n\u00ed o v\u00fdb\u011bru procesu EDM obr\u00e1b\u011bn\u00ed. Krit\u00e9ria v\u00fdb\u011bru lze rozd\u011blit do \u010dty\u0159 hledisek.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1337\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm.jpg\" alt=\"elektroerozivn\u00ed obr\u00e1b\u011bc\u00ed stroj\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm-18x10.jpg 18w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2025\/04\/edm-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>\u00davahy o geometrii a prvc\u00edch<\/h3>\n<ul>\n<li><strong>Otev\u0159en\u00e9 obrysy a pr\u016fchoz\u00ed profily<\/strong>: Zvolte \u0159ez\u00e1n\u00ed dr\u00e1tem (Wire EDM). Je ide\u00e1ln\u00ed, pokud m\u00e1 dr\u00e1t p\u0159\u00edstup k cel\u00e9 dr\u00e1ze bez nutnosti p\u0159ekon\u00e1vat z\u00e1\u0159ezy \u010di pod\u0159\u00edznut\u00ed.<\/li>\n<li><strong>Uzav\u0159en\u00e9 dutiny a skute\u010dn\u00e9 3D tvary<\/strong>: Zvolte hlouben\u00ed elektrodou (Sinker EDM). Umo\u017e\u0148uje vytv\u00e1\u0159et prvky nedostupn\u00e9 pro dr\u00e1t a p\u0159en\u00e1\u0161et slo\u017eitou geometrii z elektrody.<\/li>\n<li><strong>Mal\u00e9, hlubok\u00e9 a p\u0159\u00edm\u00e9 otvory<\/strong>: Zvolte elektroerozivn\u00ed vrt\u00e1n\u00ed. P\u0159edstavuje nejrychlej\u0161\u00ed zp\u016fsob vytv\u00e1\u0159en\u00ed startovac\u00edch otvor\u016f a chladic\u00edch kan\u00e1lk\u016f s vysok\u00fdm pom\u011brem hloubky k pr\u016fm\u011bru.<\/li>\n<\/ul>\n<h3>Materi\u00e1l, tvrdost a stav tepeln\u00e9ho zpracov\u00e1n\u00ed<\/h3>\n<p>V\u0161echny typy elektroerozivn\u00edho obr\u00e1b\u011bn\u00ed (EDM) vy\u017eaduj\u00ed elektrickou vodivost, av\u0161ak tvrdost materi\u00e1lu nen\u00ed omezuj\u00edc\u00edm faktorem; metoda EDM je toti\u017e ide\u00e1ln\u00ed pro tepeln\u011b zpracovan\u00e9 n\u00e1strojov\u00e9 oceli, tvrdokovy (karbidy) i slitiny titanu a niklu. Pokud je kl\u00ed\u010dov\u00e1 rozm\u011brov\u00e1 st\u00e1lost po tepeln\u00e9m zpracov\u00e1n\u00ed, proveden\u00ed EDM operace a\u017e po kalen\u00ed eliminuje riziko deformac\u00ed zp\u016fsoben\u00fdch \u0159ezn\u00fdmi silami. U tvrdokov\u016f nebo k\u0159ehk\u00fdch materi\u00e1l\u016f up\u0159ednostn\u011bte \u0159ez\u00e1n\u00ed dr\u00e1tem nebo pe\u010dliv\u011b nastaven\u00e9 parametry hlouben\u00ed, abyste minimalizovali vznik mikrotrhlin.<\/p>\n<h3>Velikost s\u00e9rie, n\u00e1klady a ekonomika n\u00e1strojov\u00e9ho vybaven\u00ed<\/h3>\n<ul>\n<li><strong>Prototypy a mal\u00e9 s\u00e9rie<\/strong>: Elektroerozivn\u00ed \u0159ez\u00e1n\u00ed dr\u00e1tem (WEDM) minimalizuje po\u010d\u00e1te\u010dn\u00ed n\u00e1klady na n\u00e1stroje a nevy\u017eaduje slo\u017eit\u00e9 elektrody, co\u017e z n\u011bj \u010din\u00ed n\u00e1kladov\u011b efektivn\u00ed \u0159e\u0161en\u00ed pro kusovou v\u00fdrobu a kr\u00e1tk\u00e9 s\u00e9rie.<\/li>\n<li><strong>Formy pro velkos\u00e9riovou v\u00fdrobu nebo opakuj\u00edc\u00ed se dutiny<\/strong>: Elektroerozivn\u00ed hlouben\u00ed (SEDM) se st\u00e1v\u00e1 ekonomicky v\u00fdhodn\u00fdm, pokud se n\u00e1klady na n\u00e1vrh a v\u00fdrobu elektrod rozlo\u017e\u00ed do velk\u00e9ho po\u010dtu d\u00edl\u016f. Efektivn\u00ed strategie pr\u00e1ce s elektrodami (nap\u0159. hrubov\u00e1n\u00ed\/dokon\u010dov\u00e1n\u00ed, sd\u00edlen\u00e9 geometrie) sni\u017euj\u00ed celkov\u00e9 n\u00e1klady.<\/li>\n<li><strong>Pracovi\u0161t\u011b pro vrt\u00e1n\u00ed otvor\u016f<\/strong>: U opakuj\u00edc\u00edch se vzor\u016f chladic\u00edch otvor\u016f zaji\u0161\u0165uje specializovan\u00e9 EDM vrt\u00e1n\u00ed s automatizac\u00ed p\u0159edv\u00eddatelnou propustnost v\u00fdroby.<\/li>\n<\/ul>\n<h3>Automatizace, up\u00edn\u00e1n\u00ed a monitorov\u00e1n\u00ed procesu<\/h3>\n<p>Modern\u00ed EDM technologie podporuj\u00ed bezobslu\u017enou v\u00fdrobu. Syst\u00e9my automatick\u00e9ho navl\u00e9k\u00e1n\u00ed dr\u00e1tu, v\u00fdm\u011bn\u00edky n\u00e1stroj\u016f, sondov\u00e1n\u00ed v pr\u016fb\u011bhu procesu a monitorov\u00e1n\u00ed stroje sni\u017euj\u00ed prostoje i zmetkovitost. Prioritou by m\u011blo b\u00fdt:<\/p>\n<ul>\n<li>\u010cist\u00e9 dielektrikum a stabiln\u00ed filtrace pro udr\u017een\u00ed stability v\u00fdboje.<\/li>\n<li>Pevn\u00e9 upnut\u00ed se spolehliv\u00fdmi referen\u010dn\u00edmi body (daty) pro zaji\u0161t\u011bn\u00ed opakovatelnosti p\u0159i v\u00edcen\u00e1sobn\u00fdch pr\u016fchodech nebo v\u00fdm\u011bn\u011b elektrod.<\/li>\n<li>Adaptivn\u00ed gener\u00e1tory a \u0159\u00edzen\u00ed pohybu v roz\u00edch pro zachov\u00e1n\u00ed p\u0159esnosti u mal\u00fdch vnit\u0159n\u00edch polom\u011br\u016f.<\/li>\n<li>Statistick\u00e9 \u0159\u00edzen\u00ed proces\u016f (SPC) a z\u00e1znam parametr\u016f zaji\u0161\u0165uj\u00edc\u00ed sledovatelnost u vysoce p\u0159esn\u00e9ho obr\u00e1b\u011bn\u00ed d\u00edl\u016f pro zdravotnictv\u00ed a leteck\u00fd pr\u016fmysl.<\/li>\n<\/ul>\n<h2>Z\u00e1v\u011br<\/h2>\n<p class=\"ds-markdown-paragraph\">Elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (EDM) umo\u017e\u0148uje realizaci slo\u017eit\u00fdch konstrukc\u00ed d\u00edky vyu\u017eit\u00ed p\u0159esn\u00e9ho <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/cs\/blog\/cnc-machining-vs-die-casting\/\">CNC obr\u00e1b\u011bn\u00ed<\/a><\/span> a p\u0159ekon\u00e1v\u00e1n\u00ed tvrdosti materi\u00e1lu pomoc\u00ed vz\u00e1jemn\u011b se dopl\u0148uj\u00edc\u00edch metod: dr\u00e1tov\u00e9 EDM pro profily, hloub\u00edc\u00ed EDM pro dutiny a EDM vrt\u00e1n\u00ed pro hlubok\u00e9 otvory.<\/p>\n<p class=\"ds-markdown-paragraph\">D\u00edky informac\u00edm z na\u0161ich \u010dl\u00e1nk\u016f budete moci kvalifikovan\u011b rozhodovat o vyu\u017eit\u00ed EDM pro zv\u00fd\u0161en\u00ed kvality d\u00edl\u016f a konkurenceschopnosti v modern\u00ed v\u00fdrob\u011b!<\/p>\n<h2>\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n<h3 class=\"ds-markdown-paragraph\">Je EDM ur\u010deno pouze pro kovy? Lze jej pou\u017e\u00edt i na m\u011bkk\u00e9, nekalen\u00e9 materi\u00e1ly?<\/h3>\n<p class=\"ds-markdown-paragraph\">Ne tak docela. Z definice je EDM ur\u010deno v\u00fdhradn\u011b pro elektricky vodiv\u00e9 materi\u00e1ly; izolanty, jako jsou plasty, sklo, b\u011b\u017en\u00e1 keramika \u010di kompozitn\u00ed materi\u00e1ly, pro tuto metodu vhodn\u00e9 nejsou. Existuj\u00ed v\u0161ak i elektricky vodiv\u00e9 materi\u00e1ly, jako je grafit, karbid k\u0159em\u00edku, diborid titanu \u010di ur\u010dit\u00e9 polymern\u00ed kompozity. A\u010dkoli p\u0159edstavuj\u00ed sp\u00ed\u0161e specifickou oblast vyu\u017eit\u00ed EDM, lze je touto metodou rovn\u011b\u017e obr\u00e1b\u011bt.<\/p>\n<p class=\"ds-markdown-paragraph\">Pokud jde o m\u011bkk\u00e9 kovy, jako je hlin\u00edk nebo m\u011bkk\u00e1 ocel, je EDM zcela sch\u016fdnou variantou, p\u0159esto\u017ee se b\u011b\u017en\u011bji pou\u017e\u00edv\u00e1 u tvrd\u0161\u00edch materi\u00e1l\u016f. Tradi\u010dn\u00ed metody obr\u00e1b\u011bn\u00ed jsou v\u0161ak \u010dasto rychlej\u0161\u00ed a n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed \u2013 s v\u00fdjimkou p\u0159\u00edpad\u016f, kdy je geometrie d\u00edlu extr\u00e9mn\u011b slo\u017eit\u00e1 nebo k\u0159ehk\u00e1.<\/p>\n<h3 class=\"ds-markdown-paragraph\">Jak velikost d\u00edlu omezuje mo\u017enosti EDM?<\/h3>\n<p class=\"ds-markdown-paragraph\">Ka\u017ed\u00fd typ EDM m\u00e1 sv\u00e1 p\u0159irozen\u00e1 omezen\u00ed t\u00fdkaj\u00edc\u00ed se velikosti. Dr\u00e1tov\u00e9 elektroerozivn\u00ed stroje (WEDM) jsou omezeny rozsahem pojezdu a velikost\u00ed pracovn\u00ed n\u00e1dr\u017ee. U hloub\u00edc\u00edch elektroerozivn\u00edch stroj\u016f (SEDM) p\u0159edstavuj\u00ed limituj\u00edc\u00ed faktor rozm\u011bry pracovn\u00ed n\u00e1dr\u017ee a nosnost pro hmotnost elektrody. Pro velmi rozm\u011brn\u00e9 sou\u010d\u00e1sti, jako jsou lodn\u00ed lodn\u00ed \u0161rouby, by byly zapot\u0159eb\u00ed speci\u00e1ln\u00ed, masivn\u00ed elektroerozivn\u00ed stroje.<\/p>\n<h3 class=\"ds-markdown-paragraph\">Co zp\u016fsobuje vznik p\u0159etaven\u00e9 vrstvy a p\u0159edstavuje tato vrstva v\u017edy probl\u00e9m?<\/h3>\n<p class=\"ds-markdown-paragraph\">P\u0159etaven\u00e1 vrstva je tenk\u00e1, znovu ztuhl\u00e1 vrstva materi\u00e1lu, kter\u00fd byl sice roztaven, ale nebyl odplaven dielektrickou kapalinou. A\u010dkoli tato vrstva vznik\u00e1 p\u0159i ka\u017ed\u00e9m elektroerozivn\u00edm obr\u00e1b\u011bn\u00ed, jej\u00ed v\u00fdznam z\u00e1vis\u00ed na konkr\u00e9tn\u00ed aplikaci. U mnoha forem a n\u00e1stroj\u016f je bu\u010f zanedbateln\u00e1, nebo ji lze odstranit<span style=\"color: #3366ff;\"> <a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/cs\/die-casting-surface-treatment\/\">povrchovou \u00fapravou<\/a><\/span>. U vysoce nam\u00e1han\u00fdch leteck\u00fdch sou\u010d\u00e1st\u00ed vystaven\u00fdch \u00fanavov\u00e9mu nam\u00e1h\u00e1n\u00ed jde o kritick\u00fd faktor, kter\u00fd je nutn\u00e9 minimalizovat nebo zcela odstranit.<\/p>\n<h3 class=\"ds-markdown-paragraph\">Pova\u017euje se elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed za pomal\u00fd proces?<\/h3>\n<p class=\"ds-markdown-paragraph\">Ve srovn\u00e1n\u00ed s konven\u010dn\u00edm obr\u00e1b\u011bn\u00edm nen\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed obecn\u011b procesem vhodn\u00fdm pro rychl\u00e9 odeb\u00edr\u00e1n\u00ed velk\u00e9ho objemu materi\u00e1lu. Jeho hodnota spo\u010d\u00edv\u00e1 ve schopnosti p\u0159esn\u00e9ho obr\u00e1b\u011bn\u00ed, nikoli v samotn\u00e9 rychlosti \u00fab\u011bru. \u201eEfektivn\u00ed\u201c rychlost je v\u0161ak vysok\u00e1, uv\u00e1\u017e\u00edme-li, \u017ee metoda umo\u017e\u0148uje eliminovat \u0159adu krok\u016f (nap\u0159. hrubov\u00e1n\u00ed, tepeln\u00e9 zpracov\u00e1n\u00ed, dokon\u010dovac\u00ed obr\u00e1b\u011bn\u00ed) a vyrobit hotov\u00fd d\u00edl z kalen\u00e9ho polotovaru na jedno upnut\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ve stroj\u00edrenstv\u00ed se v\u00fdrobci \u010dasto setk\u00e1vaj\u00ed s d\u00edly, kter\u00e9 jsou p\u0159\u00edli\u0161 tvrd\u00e9, p\u0159\u00edli\u0161 tenk\u00e9 nebo zkr\u00e1tka p\u0159\u00edli\u0161 slo\u017eit\u00e9 pro konven\u010dn\u00ed metody obr\u00e1b\u011bn\u00ed. Pr\u00e1v\u011b zde nach\u00e1z\u00ed sv\u00e9 uplatn\u011bn\u00ed elektroerozivn\u00ed obr\u00e1b\u011bn\u00ed (EDM). D\u00edky tomu, \u017ee materi\u00e1l odeb\u00edr\u00e1 pomoc\u00ed \u0159\u00edzen\u00fdch elektrick\u00fdch v\u00fdboj\u016f nam\u00edsto mechanick\u00e9 s\u00edly, umo\u017e\u0148uje tato technika CNC obr\u00e1b\u011bn\u00ed dosahovat velmi t\u011bsn\u00fdch toleranc\u00ed u n\u00e1strojov\u00fdch ocel\u00ed, karbid\u016f, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24135,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Typy stroj\u016f EDM | Pr\u016fvodce aplikacemi a v\u00fdb\u011brem","_seopress_titles_desc":"Seznamte se s r\u016fzn\u00fdmi typy elektroerozivn\u00edho obr\u00e1b\u011bn\u00ed (EDM), v\u010detn\u011b \u0159ez\u00e1n\u00ed dr\u00e1tem (wire EDM), hlouben\u00ed (sinker EDM), vrt\u00e1n\u00ed otvor\u016f a dal\u0161\u00edch technik vyu\u017e\u00edvan\u00fdch v r\u00e1mci p\u0159esn\u00e9ho CNC obr\u00e1b\u011bn\u00ed.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"iawp_total_views":1,"footnotes":""},"categories":[219],"tags":[],"class_list":["post-23497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/comments?post=23497"}],"version-history":[{"count":4,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23497\/revisions"}],"predecessor-version":[{"id":26438,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23497\/revisions\/26438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media\/24135"}],"wp:attachment":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media?parent=23497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/categories?post=23497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/tags?post=23497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}