Open AccessRESEARCH PROFILE PRECISION HOLES, OBTAINED BY ELECTRICAL DISCHARGE MACHINING
Author(s) -
Бойко,
Anatoliy Boyko,
Кудеников,
Evgeniy Kudenikov
Publication year - 2017
Publication title -
vestnik bgtu im. v.g. šuhova
Language(s) - English
Resource type - Journals
ISSN - 2071-7318
DOI - 10.12737/24719
Subject(s) - ellipse , electrical discharge machining , machining , calibration , electrode , materials science , function (biology) , mechanical engineering , engineering drawing , geometry , engineering , metallurgy , mathematics , physics , statistics , quantum mechanics , evolutionary biology , biology
During EDM holes of small diameter portions of the lower electrode-tool bits are exposed to the side longer than the upper, which leads to increased errors resulting form the opening. The article analyzes the profile obtained by EDM holes. It is found that the taper value increases with machining depth. Experiments confirmed the adequacy of the methodology for determining the value of additional calibration pass, using the ellipse function. The data will improve the accuracy of dimensional electrical discharge machining of small diameter holes.