超精密ダイヤモンド切削における切りくず観察と鏡面生成機構に関する考察

概要

論文の詳細を見る
The purpose of this research is to clarify the behavior of ultra-precision diamond machining with an infeed range of approximately 1 to 10 nm. The machining behavior and the sharpness of the diamond tool edge were monitored by a cutting noise equipment, the chips checked by observing with a scanning electron microscope (SEM) and the machined surface was observed with an interference microscope. As a result, it was concluded that a mirror-like machine surface is generated at the depth of the machined section which is smaller than the cutting edge radius of a tool. Hence, it is very important to pay close attention to the chip producing behavior. The shear angle was not maintained throughout the chip, as two different shear angles, such as 14 and 17 degrees, were observed. These values were changed by the value of undeformed chip thickness compared with the cutting edge radius. Even during micro infeed ultra-precision diamond machining, the surface temperature of chips during machining is assumed to be rather high, exceeding the melting temperature (approximately 660 deg.) of aluminum alloys.
公益社団法人精密工学会の論文
1989-10-05