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模冲变形对多台阶粉末冶金件成形裂纹的影响研究
陈莉娥,余健波,曾锦艳,赵善杰
Study on the influence of punch deformation on forming cracks of multi-steps PM products
CHEN Li-e,YU Jian-bo,ZENG Jin-yan,ZHAO Shan-jie
. 2016, (04): 65 -69 .  DOI: 10.13228/j.boyuan.issn1006-6543.20150063