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摘要：
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小六角火花塞是当前汽车发动机上普遍采用的点火元件,分析小六角火花塞与传统火花塞的主要区别,介绍小六角火花塞壳体成形工艺的特点,探讨小六角火花塞的材料选择、下料、毛坯精整形、退火、润滑处理和冷挤压工艺,同时,也介绍了这种壳体成形工艺过程中容易出现问题的工序、部位和解决方法.最后还对形状复杂、独特的小型冷挤压零件的成形要点和不足之处进行了总结。
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Small hexagon spark Plugs are the prevailing igniting parts for petrol engine in advanced countries,which are the substitutes of the ordinary spark plugs used in our country now.This article introduces small hexagon spark plugs from the following 4 aspects: A) The main differences between small hexagon spark plugs and traditional spark plugs.B) The characteristic of shell forming technology: material selection,blanking,slug with preliminary processing,annealing,surface lubrication treatment process,the design,selecting principle and method in extrusion technology.C) The process,station where problems are very easy to arise and the solution.D) Summarizing the key and the shortcoming of the cold forming parts with complex peculiarity. All these have practical value to the technicians who are engaged in the forming technology and design.
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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]吴诗忄享.冷挤压技术[M].北京:国防工业出版社,1995.
[2]徐灏.机械设计手册(第一卷)第三篇[M].北京:机械工业出版社,1991.
[3]冯晓曾,王家瑛,何世禹.提高模具寿命指南[M].北京:机械工业出版社,1998.
[4]日本热处理技术协会.热处理指南(下册)[M].北京:机械工业出版社,1987.
[5]易文质.模具热处理[M].长沙:湖南科学技术出版社,1981.
[6]吴诗忄享,何声健.冲压工艺学[M].西安:西北工业大学出版社,1987.
[7]刘长生.汽车摩擦学[M].合肥:安徽科学技术出版社,1998.
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