| 摘要 |
PURPOSE:To improve productivity by butting a sintered diamond tip and a base material against each other through an intermediate metal film body and irradiating laser beams from the side onto the butting portion to interconnect both tip and base material with each other. CONSTITUTION:A diamond tip 1 is made of diamond grains uniformly dispersed in a tip bond material and sintered without a layer formed of only tip bond material and conventional high dimensional accuracy. This diamond tip 1 is butted against steel base material 2 to sandwich a metal film body 3 such as cobalt, nickel, etc. And this butting portion is irradiated and heated from the side by laser beams 4 or electronic beams to fuse the metal film body 3 and interconnect the tip 1 and material 2. Since the high speed connection is thus carried out by the use of laser beams, the productivity can be expected to be substantially improved. |
