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摘要：
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方截面缸体由于锻件规格较大,在锻造过程中常常出现塌角、切斜、缺肉及端面折叠等缺陷,严重影响了产品质量及合同履行周期。本文在对缸体锻件缺陷进行观察、分析的基础上,结合生产实践,对传统的锻造工艺进行了改进和简化,改进后的工艺不但简化了操作难度,而且改善了产品的锻造缺陷,使产品的一次合格率提高到了95%,并且缸体工艺成材率也提高了5%~6%。该工艺应用于生产实践中取得了良好的效果,为企业创造了可观的经济效益。
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Because the size of cylinder block with square cross-section is big,many defects usually appear in the forging process,such as sunk angle,shearing oblique,underfill and fold,which impact the product quality and the cycle of contract performance.So in this paper,based on observing and analyzing forgings defects and production practice,the traditional forging technology was improved and simplified.The improved forging technology was easy to operate and increased the first qualified rate of products to 95% by avoiding the defects effectively.At the same time,it increased the yield of cylinder block by 5%~6%.This technology has already been applied to practice,and has gained a very good effect and given better economical benefits to the business.
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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]中国机械工艺学会,锻压学会.锻压手册[M].北京:机械工业出版社,2002.
[2]刘国晖.大型板类锻件的锻造[J].锻压技术,2005,30(2):4-6.
[3]黄早文,徐开东,张志坤,等.管坯镦锻工艺仿真及优化[J].锻压技术,2006,31(6):9-11.
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