精密工学会誌
Online ISSN : 1882-675X
Print ISSN : 0912-0289
ISSN-L : 0912-0289
チタン合金のコーティング工具による超精密切削加工
安井 平司坂本 重彦川田 昌樹
著者情報
ジャーナル フリー

2002 年 68 巻 7 号 p. 928-932

詳細
抄録

This paper deals with the experimental investigation for the ultra-precision cutting of titanium alloys. Titanium alloys, which are well-known as difficult-to-cut materials, have excellent mechanical and chemical properties. In order to produce the value-added high quality components of titanium alloys, the productive cutting technique of high dimension accuracy with high smoothness surface has been strongly required. The cutting technique, however, has not progressed well because the surface roughness and product accuracy become over the necessary finished values in the extremely short cutting length due to rapid cutting tool wear. The research aims to develop the practical ultra-precision cutting technique of titanium alloys. In the experiments, the β titanium alloy and α-β titanium alloy are face-turned by various kinds of commercial cutting bites such as a single crystal diamond bite, carbide bite, cermet bite and coated carbide bite. From the experimental results, a coated carbide bite is found available for ultra-precision cutting of titanium alloys. Over the cutting length of 2, 000m which is enough length to produce some high quality components of β titanium alloy, the cutting tool wear is little and the finished surface roughness, which includes the step over 100 nm between the crystal grain boundarys, is keep smoother than 200nm(P-V). The best finished surface roughness obtained by using TiCN coated carbide bite is about 60nm(P-V) for a-β titanium alloy.

著者関連情報
© 社団法人 精密工学会
前の記事 次の記事
feedback
Top