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利用有限元软件模拟了120°的V型砧和梯型砧的锻造倒棱过程,分析了在不同型砧上倒棱后锻坯塑性变形区的内应力、应变分布和变形规律。结果表明:与120°的V型砧相比,采用梯型砧倒棱提高了锻坯内部的压应力,使锻坯心部和内外表层金属均获得较大的均匀变形,避免了表面裂纹的产生,提高锻件的内部质量;它为正确制定倒棱工艺提供理论依据,对大型锻件的生产实践提供指导。
The forging chamfering process of 120 ° V-shaped anvil and ladder anvil was simulated by finite element software, and the internal stress, strain distribution and deformation of the forged billet after chamfering on different anvils were analyzed. The results show that compared with 120 ° V-shaped anvil, the anvil chamfering of the anvil increases the internal compressive stress of the forging, so that the heart and internal and external surface metal of the forging bloom get more uniform deformation and avoid the surface crack Produce and improve the internal quality of the forging; it provides a theoretical basis for correctly setting the chamfering process and provides guidance for the production practice of large forgings.