工業用純アルミニウムと各種工具材料との適合性評価

抄録

To assess the tool-workpiece compatibility in metal forming, a friction test is carried out by a strip-ironing type tribometer, which can estimate quantitatively the effect of new surface generation during the process and sliding travel on galling. The workpiece is pure aluminum and die materials are a die steel, surface coated (TRD, CVD, PVD) steels, cemented carbides and ceramics. The compatibility is estimated through changes in the friction coefficient, observation of the frictional surfaces, and the surface appearance of products. The mechanism of galling is explained and VC, TiC and ZrO₂ are estimated to have good compatibility with alminum.