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1、摘 要压铸工艺是一种高效率的少、无切削金属的成型工艺。压铸是将熔融状态或半熔融状态合金浇入压铸机的压室，在高压力的作用下，以极高的速度充填在压铸模的型腔内，并在高压下使熔融合金冷却凝因而成形的高效益、高效率的精密铸造方法。金属压铸模成型技术是目前成型有色金属结构件的重要成型工艺方法, 金属压铸模是压铸成型的重要工艺装备。模具作为重要的工艺装备，在消费品、电器电子、汽车、飞机制造等工业部门中，占有举足轻重的地位。工业产品零件粗加工的75%，精加工的50%及塑料零件的90%是由模具完成的。模具制造的工艺方法可以分为锻造、热处理、切削加工、表面处理和装配等，其中以切削加工为主要的加工方法。切削加工大
2、体可以分为切削机床加工、钳加工和特殊加工等，通常模具零件的加工工艺路线一般应遵循普通机械加工工艺的基本原则。压铸模零件的加工大体可以分为模板加工、孔及孔系加工、成型零件加工等，对不同的模体应根据其自身的实际情况选择合适的加工方法。 随着世界科技进步和机床工业的发展，数控机床作为机床工业的主流产品，已成为实现装备制造业现代化的关键设备，是国防军工装备发展的战略物资。数控机床的拥有量及其性能水平的高低，是衡量一个国家综合实力的重要标志。加快发展数控机床产业也是我国装备制造业发展的现实要求。数控加工是现代制造技术的典型代表，数控技术是机械加工自动化的基础，是数控机床的核心技术，其水平高低关系到国家战
3、略地位和体现国家综合国力的水平。本文从具体零件工艺分析入手详略得当的介绍了压铸工艺、压铸机的选用、压铸模的设计等。【关键词】压铸模 模具 工艺 数控技术【论文类型】理论实践研究型AbstractThe compression casting process is a less efficient, non-cutting metal forming process,and the compression casting is fuses the condition or half fusing condition alloy pours in the die-casting machine t
4、he pressure room, under the high pressure function, in presses the mold by the extremely high speed backfill in the die space, and causes under the high pressure to fuse alloy cooling to congeal thus forms high benefit, high efficiency precision casting method.The metal presses the mold formation te
5、chnology is at present takes shape the non-ferrous metal structural element important formation technique, the metal presses the mold is the compression casting formation important craft equipment.The mold took the important craft equipment, in industry sectors and so on the consumable, electric app
6、liance electron, automobile, airplane manufacture, holds the pivotal status.The industry product components rough machining 75%, the precision work 50% and the plastic parts 90% are complete by the mold. The mold makes the technique may divide into forging, the heat treatment, the machining, the sur
7、face treatment and the assembly and so on, in which take machining as the main processing method.The machining may divide into the cutting engine bed processing, the pliers processing and the special processing roughly and so on, the usual mold components processing craft route should follow the ord
8、inary machine-finishing craft generally the basic principle.Presses the mold components the processing to be possible to divide into the template processing, Kong Jikong roughly is the processing, the formation components processing and so on, should act according to its own actual situation choice
9、appropriate processing method to the different die body. Along with the world advance in technology and the machine tool industry development, the numerical control engine bed took the machine tool industry the mainstream product, has become the realization equipment manufacturing industry moderniza
10、tion the essential equipment, is the national defense war industry equips the development the strategic resources.The numerical control engine bed capacity and the performance capability height, is weighs a national synthesis strength the important symbol.Speeds up the development numerical control
11、engine bed industry also is our country equips the manufacturing industry development the reality request.The numerical control processing is modern technique of manufacture typical representative, the numerical control technology is the machine-finishing automation foundation, is the numerical cont
12、rol engine bed core technologies, its horizontal height relates the national strategy status and manifests the national comprehensive national strength the level.In this paper, the specific parts from the process of analyzing the level of detail appropriate to introduce a compression casting, the se
13、lection of compression machine, compression mold design.【Key word】The compression casting mold、Mold、the numerical control technology【Dissertation type】A theory and practice and research目 录第1章 零件工艺性分析 1.1 零件工艺性分析1第2章 压铸机型号的选择 2.1 压铸机选用原则3 2.2 按锁模力选择压铸机32.3 按压室充满度选择压铸机 4第3章 确定模具结构3.1 确定分型面6 3.2 确定压铸件在
14、模具中的位置63.3 浇注系统的确定 73.4 成型零件的设计 73.5 模架结构 143.6 推出机构设的计 163.7 浇注系统及排溢系统的设计 17第4章 绘制压铸模装配图19第5章 绘制模具零件图20第6章 典型零件机械加工工艺规程6.1 导套机械加工工艺过程226.2 斜销数控加工程序23致 谢 24参考文献 25 附 录 27壳体压铸模设计第1章 零件工艺性分析1.1零件工艺性分析此零件结构较为复杂，壳表面与内侧均有凸台，外围有侧孔，但壁厚基本均匀，且在铸件面之间均有圆角过渡，圆角半径适宜，孔直径和深度的比例合适。（见图1）压铸件所要求的尺寸精度和表面粗糙度都较适当，能用压铸方法能达到尺寸要求的精度。压铸件的材料为YZAlSi12压铸铝硅合金，由教科书查得其平均收缩率为0.6%。工艺规程的制定见下表压铸工艺卡。 表1压力铸造工艺卡产品名称压铸件名称壳体材料牌号YZAlSi1
