1992•TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series COpen access

Compatibility between Tool Materials and Aluminum in Metal Forming.

Kuniaki Dohda, Naoyuki Ukai, Yoshinari Tsuchiya, Tohru Arai

Abstract

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.

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Available abstract

Key concepts: Galling, Compatibility (geochemistry), Materials science, Tribometer, Aluminium, Metal forming, Metallurgy, Ceramic