Characteristics of abrasive jet machining of silicon nitride ceramics

Abstract

Abrasive let machining ( AJM ) a 賦rads a 賦ention as ultra 一 価ne prooessing technobgy to brittle materiai ， such as glass and ceramics ． 丁his study investigates the effect of iinpaCt angJe on machining e 伍 ciency and surIace roughness ． The AJM test to which the impaCt angle was changed ， were ca 巾ed out that a part of fra〔 加 re mode was changed to ductile mode when an impact ang ［ e becomes sma 闘 ． Consequently ， machiRing e 粫ciency was improved in the conditions of a sma 腿 impaCt angle ． Moreover ， it was shown that su 了 face roughness was improved in£he oondition of a very low impaCt angle ．