塑性加工における焼付き発生機構の研究 : 第4報,限界油膜厚さに及ぼす工具表面粗さの影響

概要

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An extrusion-type friction test and a forced sliding test have been carried out to examine the critical conditions for seizure initiation in different tool surface roughnesses using a commercially pure aluminium as a workmetal. The thinner the applied lubricant oil film thickness was, the earlier the seizure occured in every tool surface roughness. However, the critical punch stroke for seizure initiation decreased remarkably with the increasing of tool surface roughness. The oil film thickness trapped in the tool-work interface was measured experimentally and estimated theoretically. As a result, it has been clarified that the critical oil film thickness for seizure initiation increases with the increasing of tool surface roughness.
一般社団法人日本機械学会の論文
1988-10-25