球头销冷镦模设计

模具论文编号:JX674  论文字数:12020.页数:25 附任务书,开题报告,外文翻译,答辩PPT,CAD图纸

目  录
1 前言 1
1.1 冷挤压工艺研究现状及其发展 1
1.2 国外冷挤压技术现状及其发展 2
1.3 国内冷挤压技术的研究进展及发展趋势 2
2 课题提出的背景和意义 4
3 方案论证 6
3.1 冷挤压工艺 6
3.2 冷挤模工艺分析 8
4 设计 11
4.1 所需资料及原始数据 11
4.2 主要研究内容 11
4.3 本课题的研究目的 11
4.4 研究意义 11
4.5 冷挤压产品工艺分析 11
4.6 冷挤压工艺方案的确定 12
4.7 冷挤压变形程度的计算 13
4.8 毛坯尺寸的计算 14
4.9 冷挤压力的计算 17
5 初选冷挤压设备 18
6 冷挤压模零件的设计 19
6.1 凸模的设计 19
6.2 凹模的设计 19
6.3 导向装置 19
6.4 顶件装置 19
7 总结 20
参考文献 21
致    谢 22

【摘要】在我国,冷挤压技术已得到越来越多的应用,有较多种类的有色金属与黑色金属可用冷挤压方法进行生产,冷挤压零件的复杂程度亦不断提高。本文讨论了冷挤压的许用变形程度、润滑的选用,冷模锻的应用与不锈纲的挤压各个问题。由于模具结构的合理化以及模具材料的发展,冷挤压模具寿命得到不断的提高。冷挤压是机械制造中的一种金属压力加工少、无切削新工艺。用冷挤压方法进行生产可以大幅度地提高劳动生产率、节约原材料、可以保证产品质量,生产成木亦得到显著的下降。近年以来,各工业先进国家对冷挤压的发展极为重视,这门新技术已得到广泛的应用。 在我国,解放前的冷挤压技术极为落后;解放后,这门新工艺得到了发展。近年以来,冷挤压在各部门得到了越来越多的应用。以下就冷挤压材料、变形工序以及冷挤压模具各个方面进行讨论。冷挤压用材料在我国,纯铝、防诱铝、锻铝、硬铝、紫铜、无氧铜、含铜量在62%以上的黄铜都已在五十年代应用。
 
【关键词】冷挤压

Impact extrusion technology in our country's application and progress

 [Abstract] In our country, the impact extrusion technology obtained more and more applications, has the many type non-ferrous metals and the ferrous metal available impact extrusion method carries on the production, the impact extrusion components complex degree also unceasingly enhances. This article discussed impact extrusion Xu Yong the distortion degree, lubrication selection, cold drop forging application and stainless outline extrusion each question. As a result of the mold structure's rationalization as well as the mold material's development, the swaging die set life has the unceasing enhancement. The impact extrusion is in machine manufacture's one metal shaping few, does not have cuts the new craft. Carries on the production with the impact extrusion method to be possible to raise the labor productivity, the frugal raw material, to be possible large scale the quality assurance, produces Cheng Muyi to obtain the remarkable drop. Since recent years, the various industries advanced countries extremely have taken seriously to the impact extrusion development, this new technology obtained the widespread application. In our country, the pre-liberation impact extrusion technology falls behind extremely; After the liberation, this new craft obtained the development. Since recent years, the impact extrusion obtained more and more applications in various departments. The following on the impact extrusion material, the distortion working procedure as well as swaging die set each aspect carries on the discussion. First, the impact extrusion with the material in our country, the pure aluminum, against tempts the aluminum, to hammer the aluminum, the duralumin, the red copper, the oxygen-free copper, the copper content in 62% above brasses in the 50s should。
 
[Key words] impact extrusion