切屑接触長さ高速工具による仕上面粗さについて(第一報)

概要

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Experimental reserches on chip formation，cutting temperatur，cutting resistance， effect of cutting speed，machinability of materials and tool life were analysed to a large extent，based upon the machining theory of tool-chip contact length. According to those reserches，we know the fact that tools with artificially restricted tool-chip contact length have good influence upon machining of metals. Here in this report，surface roughness which is one of the most important factors in machinability is discussed while changing the contact length and cutting speed respectively. Roughness focused on in this report is that in the direction of feed mark，as it is not influenced upon the feed mark and is more emphasized by tool-chip contact length than that perpendicular to the feed　mark. This time we make little reference to the built-up edge which is seriously affected to surface finish，and the experimental results lead us to the deduction that variation in surface finish is probably concerned with drop of cutting temperature and decrease of harmful relative mo tion，tool and chip，caused by restriction of tool-chip contact length.
北見工業大学の論文