Title :
Ultra-fine piercing by SiC fiber punch
Author :
Mori, Toshihiko ; Nakashima, Kunihiko ; Tokumoto, D.
Author_Institution :
Dept. of Mech. Eng., Nagoya Univ., Japan
Abstract :
A new ultra-fine piercing in which SiC fiber was used for a punch was proposed. Many new techniques had to be developed in order to realize the process. Thus the ultra-fine punch which has a flat end and an acute edge was obtained and the center of the punch agreed with that of a die. Three kinds of metals which have various thickness and strengths were pierced. A 17 μm thick aluminum foil is a specimen of high aspect ratio and low strength, a 15 μm thick beryllium copper is a specimen of high strength and a 8 μm stainless steel is hard-to-form material. It was shown by observations of a scanning electron microscopy that every hole is truly round and the sheared surface is smooth
Keywords :
ceramics; micromachining; scanning electron microscopy; silicon compounds; 8 to 17 micron; SiC; aspect ratio; fiber punch; hard-to-form material; scanning electron microscopy; sheared surface; strength; ultra-fine piercing; Aluminum; Ceramics; Conducting materials; Mechanical engineering; Optical fiber cables; Optical materials; Polymers; Silicon carbide; Steel; Thermal conductivity;
Conference_Titel :
Micromechatronics and Human Science, 1998. MHS '98. Proceedings of the 1998 International Symposium on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-5130-4
DOI :
10.1109/MHS.1998.745750
