Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 15, 2021 - September 17, 2021
To develop processing technology for functional containers, forming technology for pure titanium containers and titanium alloy clad containers using deep drawing technology has been developed so far. In the present study, an attempt was made to form corrugated clad cups with voids that resemble the cross-sectional structure of corrugated paper. This unique shape of cup has never been fabricated before, and it is a completely new forming technology. The test material was commercially available pure titanium, ultralow-carbon steel, and stainless steel. The shape of the blank was a disc with a diameter of 80 to 85 mm. The deep drawing machine used was a hydraulic machine. The clad cup was formed by a composite die with a structure consisting of the roller ball die sandwiched between two regular dies. The formability of the cups was evaluated by measuring thickness strain and compressive strength. Load-displacement measurements were also taken to investigate the forming transition. As a result of the deep drawing process using a combination of ferrous metals of SPCC and stainless steel, it was found that it was possible to form corrugated cups. No fracture occurred in the forming of the corrugated cup.
