塑性加工における表面平滑化条件 : 面圧と相対すべり量の影響

概要

論文の詳細を見る
To examine the effects of contact pressure and relative slip displacement on smoothing conditions of surface asperities acommpanied with no bulk plastic deformation of a workmetal, disk specimens were compressed by a punch in a closed die and rotated with the die. A little amount of the relative slip displacement under the contact pressure accelerated remarkably the smoothing of the surface asperities and thereby the workmetal surfaces were smoothed completely to the same surface roughness as the tool. The surface roughness change of the workmetal were approximated by the experimental equations which were expressed as a function of the contact pressure and relative slip displacement. On the basis of these results, smoothing conditions of surface asperities accompanied with bulk plastic deformation of a workmetal were investigated by a free upsetting of disk specimen and an upsetting of ring specimen in a closed die. Consequently, the smoothing conditions of the workmetal surface in these forming processes also could be approximated by the same equations as the above experimental equations.
一般社団法人日本機械学会の論文
1990-10-25