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摘要：
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对于汽油机曲柄这样的锻件,有较大的圆盘形头部,而杆部细长,从常用的锻件制坯和成形工艺的比较,采用楔横轧制坯,然后预锻、终锻成形是比较理想的工艺方案。本文从生产的实际需要出发,提出了在汽油机曲柄成形中采用轧、锻联合成形工艺,在楔横轧制坯中又引入了组合式楔横轧模具的设计思路。探讨了组合式楔横轧模具的设计方法,使汽油机曲柄的轧、锻联合成形工艺更具实用价值。
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This paper deals with the problem of making a forged article such as the crank of gasoline engine,which consists of a big disc and a long thin rod.Through making a comparison between the common pre-blocking techniques and forming technology,the author finds that it is an ideal plan to adopt cross wedge rolling technique for pre-blocking and then implementing forging operations.This paper puts forward a rolling and forging combined process of the crank of gasoline engine,which proceeds from productive requirements.By this means,the author tries to introduce an designing idea which combines wedge-rolling tools in the performing process,to probe into the method of combined wedge-rolling tools design,and bring practical values to the rolling and forging combined process of the crank.
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基金项目：
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作者简介：
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参考文献：
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[1]李尚健.锻造工艺及模具设计资料[M].北京:机械工业出版社,1991.
[2]李东平,李广权,白志斌,等.楔横轧技术的应用及新发展[J].哈尔滨工业大学学报,2000,32(5):97 99.
[3]胡正寰,等.楔横轧理论与应用[M].北京:冶金工业出版社,1996.
[4]张猛,胡亚民,等.回转塑性成形工艺及模具[M].武汉:武汉工业大学出版社,1998.
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