Research on the Surface Roughness and Fiction Coefficient in Cutting of Cast Iron
Research on the Surface Roughness and Fiction Coefficient in Cutting of Cast Iron
复制标题
铸铁切削加工表面粗糙度和摩擦系数的研究
DOI：
10.2497/jjspm.49.290
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Tatuo Nakagawa
中科院分区：
文献类型：
--
作者：
Eiichi Sentoku;M. Kito;Tatuo Nakagawa
铸铁在高速切削时，工件表面受到剧烈的塑性变形，切削条件会使已加工表面发生变化。研究了切削加工条件对铸铁（FC 300）表面粗糙度和摩擦系数的影响。实验条件为：切削速度1.67-6.67m/s，进给量0.05-0.3mm/rev，前角-5 °~-35 °，切削深度0.10-0.15mm。经过切削实验，主要结果如下：（1）低进给量和高切削速度可以获得良好的表面粗糙度。(2)当切削速度为1.67m/s时，加工表面变得粗糙。当切削速度为6.67m/s时，由于工件表面发生塑性流动，获得了较好的表面粗糙度。(3)前角为-15 °时，表面粗糙度最好，前角为-20 °时，摩擦系数最低。(4)在进给量为0.05或0.3mm/rev时，摩擦系数较高，并随切削速度的增加而增加。
The machined surface of cast iron changes by cutting conditions because the surface of work receives the severe plastic deformation in high-speed cutting. The purpose of this paper is to study the effects of cutting work conditions on surface roughness and friction coefficient of the cast iron (FC300). Experimental conditions were in the ranges of cutting speed 1.67-6.67m/s, feed 0.05-0.3mm/rev, rake angle -5°--35°, and the depth of cut was 0.10-0.15 mm. The experiments were carried out using CNC lath, and the friction coefficient was measured using strain gauge.Surface roughness of work was measured, after cutting experiment.The main results are follows (1) Good surface roughness was given by low feed and high cutting speed. (2) The machined surface becomes rugged at cutting speed of 1.67m/s. Good surface roughness was obtained at cutting speed of 6.67m/s, because the surface of work material caused plastic flow. (3) The best surface roughness was obtained at rake angle of -15°, and the lowest friction coefficient was obtained at rake angle of -20°. (4) The friction coefficient is high at the feed is 0.05 or 0.3mm/rev, and increases with higher cutting speed.