Roughness of a Machined Surface with Artificial Restriction of Tool-Chip Contact Length (Report II)

摘要

In the previous report， we researched the roughness　of machined surface with artificial restriction of tool-chip contact length. But on the profile curves we found the special reduction of roughness which would be concerned with the temperature change caused by cutting temperature with restriction of tool-chip contact length. So in this report， we observed the temperature change caused by cutting speed and restriction of tool-chip contact length. Moreover we measured the shear angles while we scaled the thickness of chip and utilized the equation formula tanφ=(γ_ecosα)/(1-γ_esinα), and then we assumed the relation among shear angles， cutting tempreture and surface roughness.