contact-initiated discharge machining

contact-initiated discharge machining

[′kän‚takt ə¦nish·ē‚ād·əd ¦dis‚chärj mə‚shēn·iŋ]
(mechanical engineering)
An electromachining process in which the discharge is initiated by allowing the tool and workpiece to come into contact, after which the tool is withdrawn and an arc forms.