Abstract
40 MN multi-cored die forging press is a bi-directional loading press machine designed by Tsinghua University. The main frame is made by combination of multi-components through bumpy-ridge contact face and wound steel wire, which will supply a solidity support to bi-directional working load, i.e., the vertical and horizontal. Due to combination of multi-components (blocks), the main frame must be wound by the tensioned steel wire, which will endure a strong pre-stress. When die forging press works, the complex loading cases will appear,for instance, the vertical and horizontal loading, the compound and the eccentric loading. This paper addresses whole finite element analysis of 40 MN die forging press in various cases. Especial attention is paid to stress, displacement and safety coefficient on bumpy-ridge contact face of main frame.
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