セラミック工具による炭素鋼の溝入れ切削

概要

論文の詳細を見る
In order to investigate the grooving performance of ceramic insert tools, cutting test was conducted on low and medium carbon steel under various conditions. Wear patterns, wear rates and chip shapes were observed precisely and also acoustic emission (AE) signals in grooving were measured and analysed for the recognition of cutting state. Main results obtained were as follows : (1) The failure of ceramic tools in grooving operation largely depends on the generation and disposal of the chip, and segregation of tool rake face near the cutting edge easily occurs on brittle tools. In grooving low carbon steel, side flank face tends to break because of the adhesion of work material. (2) It is possible to use TiC added ceramic tools for grooving medium carbon steel. In this case, emulsion type cutting fluid works effectively to dispose chips and improve the surface roughness, but tends to increase the rake face chipping of the tool. (3) The measurement and analysis of AE signals during grooving operation helps to detect the chip forming condition or tool breakages, and it can be used as the signal of successful cutting.
公益社団法人精密工学会の論文
1988-02-05