CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2].zip

收藏

跳过导航链接。
折叠 CA6140车床后托架831001加工工艺和钻螺钉孔及定位销孔夹具设计版本2.zipCA6140车床后托架831001加工工艺和钻螺钉孔及定位销孔夹具设计版本2.zip
展开 CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2]CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2]
压缩包目录 预览区
  • CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2]
    • CA6140机床后托架零件图.dwg--点击预览
    • 任务书.doc--点击预览
    • 外语文献翻译.doc--点击预览
    • 工艺过程综合卡片.dwg--点击预览
    • 开题报告.doc--点击预览
    • 毕业设计(论文)学生自检表.doc--点击预览
    • 毛坯图.dwg--点击预览
    • 答辩资料.doc--点击预览
    • 设计说明书-CA6140机床后托架加工工艺及夹具设计.doc--点击预览
    • 钻夹具体.dwg--点击预览
    • 钻顶面4个孔夹具装配图.dwg--点击预览
请点击导航文件预览
编号:5164    类型:共享资源    大小:1.05MB    格式:ZIP    上传时间:2021-10-28
20
金币
关 键 词:
831001 版本2 CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2] ca6140 车床 托架 加工 工艺 以及 螺钉 定位 夹具 设计 版本
资源描述:
攀枝花学院毕业设计(论文) 附 件 附件附件 1: : 毕业设计(论文)任务书 机制 专业 2002 年级 2005 年 3 月 28 日批准 专业负责人: 乔 水 明 发给学生: 王中蔚 贺 兵 1.毕业设计(论文)题目:CA6140 机床后托架加工工艺及夹具 设计 2.学生完成全部任务期限: 2006 年 6 月 9 日 3.任务要求:(1)、设计内容:制订年产 5000 台 CA6140 机床 后托架的加工工艺; (2)、设计主视图中的三孔的加工夹具; (3)、设计铣底面的夹具; (4)、设计俯视图中 4 孔的加工夹具; (5)、提交夹具装配图、零件图、加工工艺卡片、设计说明书 及精度分析等相关设计分析结果。 注意:多人做一题时,设计方案、内容不能相同 4.实验(调验)部分内容要求: (1)、查阅相关资料,分析所给题目的零件结构工艺性,编排 攀枝花学院毕业设计(论文) 附 件 出该零件的合理的加工工艺过程,选择各加工工序的合理的 切削用量,计算各工序的定额,填写零件的加工工艺卡片; (2)、完成给定加工面的夹具设计(须有方案分析比较、优选), 每套夹具须完成装配图 1 张,夹具主要零、部件 2-3 张; (3)、编写夹具的设计说明书,字数在 15000 字以上。 5.文献查阅及翻译要求: (1)、机械加工工艺人员手册; (2)、机床家具设计手册; (3)、机床夹具图册; (4)、翻译有关机械制造方面 10000 个字符以上的外文资料, 字数不得少于三千。 6.发出日期: 2006 年 2 月 18 日 指导教师: 卢 宗 彪 (签名) 完成任务日期: 2006 年 6 月 9 日 学生:王 中 蔚 (签名) 攀枝花学院本科毕业设计(论文)攀枝花学院本科毕业设计(论文) 外文译文外文译文 院 (系): 机电工程学院 专 业: 机械设计制造及其自动化 姓 名: 王 中 蔚 学 号: ZJD02043 指导教师评语: 签名: 年 月 日 外语文献翻译 摘自: 制造工程与技术(机加工) (英文版) Manufacturing Engineering and TechnologyMachining 机械工业出版社 2004 年 3 月第 1 版 页 564560P 美 s. 卡尔帕基安(Serope kalpakjian) s.r 施密德(Steven R.Schmid) 著 原文: 20.9 MACHINABILITY The machinability of a material usually defined in terms of four factors: 1、Surface finish and integrity of the machined part; 2、Tool life obtained; 3、Force and power requirements; 4、Chip control. Thus, good machinability good surface finish and integrity, long tool life, and low force And power requirements. As for chip control, long and thin (stringy) cured chips, if not broken up, can severely interfere with the cutting operation by becoming entangled in the cutting zone. Because of the complex nature of cutting operations, it is difficult to establish relationships that quantitatively define the machinability of a material. In manufacturing plants, tool life and surface roughness are generally considered to be the most important factors in machinability. Although not used much any more, approximate machinability ratings are available in the example below. 20.9.1 Machinability Of Steels Because steels are among the most important engineering materials (as noted in Chapter 5), their machinability has been studied extensively. The machinability of steels has been mainly improved by adding lead and sulfur to obtain so-called free- machining steels. Resulfurized and Rephosphorized steels. Sulfur in steels forms manganese sulfide inclusions (second-phase particles), which act as stress raisers in the primary shear zone. As a result, the chips produced break up easily and are small; this improves machinability. The size, shape, distribution, and concentration of these inclusions significantly influence machinability. Elements such as tellurium and selenium, which are both chemically similar to sulfur, act as inclusion modifiers in resulfurized steels. Phosphorus in steels has two major effects. It strengthens the ferrite, causing increased hardness. Harder steels result in better chip formation and surface finish. Note that soft steels can be difficult to machine, with built-up edge formation and poor surface finish. The second effect is that increased hardness causes the formation of short chips instead of continuous stringy ones, thereby improving machinability. Leaded Steels. A high percentage of lead in steels solidifies at the tip of manganese sulfide inclusions. In non-resulfurized grades of steel, lead takes the form of dispersed fine particles. Lead is insoluble in iron, copper, and aluminum and their alloys. Because of its low shear strength, therefore, lead acts as a solid lubricant (Section 32.11) and is smeared over the tool-chip interface during cutting. This behavior has been verified by the presence of high concentrations of lead on the tool- side face of chips when machining leaded steels. When the temperature is sufficiently high-for instance, at high cutting speeds and feeds (Section 20.6)the lead melts directly in front of the tool, acting as a liquid lubricant. In addition to this effect, lead lowers the shear stress in the primary shear zone, reducing cutting forces and power consumption. Lead can be used in every grade of steel, such as 10 xx, 11xx, 12xx, 41xx, etc. Leaded steels are identified by the letter L between the second and third numerals (for example, 10L45). (Note that in stainless steels, similar use of the letter L means “low carbon,” a condition that improves their corrosion resistance.) However, because lead is a well-known toxin and a pollutant, there are serious environmental concerns about its use in steels (estimated at 4500 tons of lead consumption every year in the production of steels). Consequently, there is a continuing trend toward eliminating the use of lead in steels (lead-free steels). Bismuth and tin are now being investigated as possible substitutes for lead in steels. Calcium-Deoxidized Steels. An important development is calcium-deoxidized steels, in which oxide flakes of calcium silicates (CaSo) are formed. These flakes, in turn, reduce the strength of the secondary shear zone, decreasing tool-chip interface and wear. Temperature is correspondingly
展开阅读全文
提示  知学网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
关于本文
本文标题:CA6140车床后托架[831001] 加工工艺和钻螺钉孔及定位销孔夹具设计[版本2].zip
链接地址:https://www.zhixuedoc.com/doc/5164.html
关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

网站客服QQ:2737901935

copyright@ 2022-2025 知学网网站版权所有  客服联系电话:18552552549

ICP备案号:苏ICP备2021046181号-1  经营性许可证:苏B2-20230631

本站为文档C2C交易模式,即用户上传的文档直接被用户下载,本站只是中间服务平台,本站所有文档下载所得的收益归上传人(含作者)所有。知学网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。若文档所含内容侵犯了您的版权或隐私,请立即通知知学网,我们立即给予删除!

收起
展开