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Abstract：
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In this paper, cold closed\|die extrusion forging technology of the bevel gears were researched experimentally. The 3\|D numerical simulation was successively applied to analyze the forming processes and hydraulic die\|shelf was specially designed and manufactured for the cold precision forming of the gears. The results show that design in the technology and die cavity is effective,numerical simulation is satisfactory, die\|shelf system has functional reliability and load can be assigned reasonably to closing die and extrusion. They would be valuable for applying the technique to practical production.
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Funds：
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吉林省重点科技攻关项目 (1 9980 1 0 0 4 )
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AuthorIntro：
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Reference：
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1 TakashiNakanoModernapplicationofcomplexforgingandmulti-actionformingincoldforging.J MaterProcTech.,1994,46:201～226
2 山本明,杨国彬.日本闭式模锻技术的发展.汽车工艺与材料,1995(11):1～4
3 杨慎华,寇淑清等.钢质直齿圆柱齿轮冷精锻技术研究.农业机械学报,1999,30(6):115～119
4 梁继材,傅沛福等.闭式模锻液压模架的研制.吉林工业大学自然科学学报,2001,31(2):17～20
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