Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2023 - September 06, 2023
This report describes the results of reducing residual stress during press forming by changing the diluent water for the lubricating film in cold forging from tap water to softened reform water. Tensile tests were performed on bonded low-carbon steels, and surface strain was compared by image correlation method. Since the difference in adhesion was clear due to the difference, press forming experiments were conducted on thin sheets subjected to the same bonder treatment. We investigated the friction coefficient experimentally and applied it to CAE analysis. Furthermore, as a result of changing to this dilution water for bonder treatment of mass-produced processed products, the forming load was also reduced.
