琪琪色原网站在线观看,国产伦精品一区二区三区免费,久久99精品久久久久婷婷,国产freesexvideos中国麻豆

Jiangmen hardware accessories factory analyzes its mold processing process arrangement

2019-12-29 1095

  Mold making refers to the processing of forming and blank making tools, in addition to shear mold and die-cutting mold. Generally, the mold has two parts: upper mold and lower mold. The steel plate is placed between the upper and lower dies to realize the material forming under the action of the press. When the press is opened, the workpiece determined by the die shape will be obtained or the corresponding waste materials will be removed. As small as electronic connector, as large as the automobile dashboard, the workpiece can be molded with mold. Progressive die refers to a set of die which can automatically move the workpiece from one station to another and get the forming parts at the last station. Die processing technology includes: cutting die, blanking die, compound die, extrusion die, four slide die, progressive die, stamping die, die cutting die, etc.

  Process flow arrangement

  1. Bottom surface processing, processing quantity guarantee;

  2. Casting blank datum alignment, 2D and 3D mold surface allowance inspection;

  3. Rough machining of 2D and 3D profile, non installation non working plane (including safety platform surface, buffer installation surface, pressing plate plane and side datum plane);

  4. Before semi finishing, the side datum should be aligned correctly to ensure the accuracy;

  5. Semi finish machining of 2D and 3D profile, finish machining of all kinds of installation working surfaces (including limit block installation surface and contact surface, insert installation surface and back side, punch installation surface, waste cutter installation surface and back side, spring installation surface and contact surface, all kinds of travel limit working surface, wedge installation surface and back side), semi finish machining of all kinds of guide surfaces and guide holes, leaving allowance for finish machining process Datum hole and height datum, and record data;

  6. Check and recheck the machining accuracy;

  7. Fitter setting process;

  8. Before finishing, align the reference surface of the process reference hole and check the allowance of the insert;

  9. Finish machining profile 2D, 3D, side punching profile and hole position, finish machining process reference hole and height reference, finish machining guide surface and guide hole;

  10. Check and recheck the machining accuracy.

  Jiangmen hardware accessories factory http://dealbeamer.com//


欧美丰满老熟妇aaaa片| 亚洲av永久纯肉无码精品动漫| 欧美丰满大屁股ass| 日韩av片无码一区二区不卡电影| 337p日本欧洲亚洲大胆精品 | av在线亚洲男人的天堂| 久久精品国产亚洲av嫖农村妇女| 日本大肚子孕妇交xxx| 欧美黑人又粗又大高潮喷水| 精品久久久久国产免费| 色翁荡息又大又硬又粗视频| 中国孕妇变态孕交xxxx| 又黄又爽又无遮挡免费的网站 | 免费国产黄网站在线观看| 久久久久久久久无码精品亚洲日韩 | 中国娇小与黑人巨大交| 精品成在人线av无码免费看| 人人人妻人人澡人人爽欧美一区| 2020年国产精品| 极品少妇被猛得白浆直流草莓视频 | 色综合中文综合网| 国产玉足榨精视频在线观看| 后入内射国产一区二区| а√资源新版在线天堂| 国产精品51麻豆cm传媒| 免费人成视频xvideos入口| 人妻丰满熟av无码区hd| 亚洲精品国产成人片| 欧洲熟妇色| 亚洲风情亚aⅴ在线发布| 亚洲av日韩综合一区在线观看| 国产精品免费大片| 国产精品国产三级国产a| 国产精品美女久久久久av爽| 国产精品人人做人人爽| 少妇高潮喷水在线观看| 久久成人国产精品免费软件| 亚洲av无码国产精品色午夜字幕| 男女后式激烈动态图片| 国产人成无码视频在线观看| a国产一区二区免费入口|