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Influence of Microstructure of Coatings on Sliding Damage for Press Working Die
Published October 07, 2009 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
In this study, we examined the damage of coatings on press working die in the slide loading condition. The SKD11 was selected as the base metal of the test piece because of frequent application as die steel. The slide tests could be carried out with making our own testing dies on actual press working condition. On the slide tests, TRD and CVD coating were selected. The slide damage of TRD coatings was smaller than that of CVD coatings. The slide damage of coatings was quantitatively evaluated by the X-ray diffraction technique and surface roughness. The surface damage was the adhesion of zinc moved from the hot dip galvanizing blank sheet.