深絞り容器の軸圧縮と内圧による張出加工

概要

論文の詳細を見る
Hydrostatic bulging forming combined with axial compression is a new method for producing vessels or containers proposed recently by Woo et al. In this process a deep cup is first formed from a circular sheet metal blank by drawing and ironing, and then bulged under internal hydraulic pressure and axial compression. This paper investigates the following problems;　1) Why the axial compression is effective on bilging.　2) What loading path is the most effective.　3) What the bilging limit depends on if it exists.　Freely bilging formings without outer die were carried out up to the bilging limit (buckling or rupture). The experiments on aluminum sheets showed that the maximum bilging strain was 64% (greater than the result by Woo) and that the bilging limit was not caused by rupture but by depression at the shoulder of a vessel.
山形大学の論文
1980-01-21