Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2023 - September 06, 2023
Deep-drawn products include batteries and sensor covers, which are becoming lighter and stronger in response to recent social demands for energy conservation. In the present study, we attempted to form lightweight corrugated clad cup with voids similar to the cross section of corrugated paper. To reproduce this shape, the roller ball die with steel balls placed without gaps in the die shoulder was used. In the experiment, the drawn cup was formed using a combination of a normal die and the roller ball die. The thickness of the blank was 0.3 mm to reduce the weight of the cup. Pure titanium sheet and mild steel sheet were used as experimental materials. The relationship between die geometry and formability and the formability of the three-layer clad cup were investigated. It was possible to form the drawn cups without wall cracks or bottom cracks.
