精品日产A一卡2卡三卡4卡3卡,年轻内射无码视频,在线观看精品视频网站,老女人老熟女亚洲

Jiangmen hardware accessories factory analyzes its mold processing process arrangement

2019-12-29 1501

  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://www.itksk.com//


免费观看黄网站在线播放| 国产成人亚洲精品无码av大片| 国产在线精品成人一区二区三区| 中文字幕日本六区小电影| 无码久久精品国产亚洲av影片| 免费特级毛片| 精品黑人一区二区三区| 色五月丁香五月综合五月亚洲| 怡红院av一区二区三区| 欧洲美女黑人粗性暴交视频| 国产精品成人观看视频国产奇米| 国产丝袜视频一区二区三区| 日韩国产成人无码av毛片| 亚洲碰碰人人av熟女天堂| 国产稚嫩高中生呻吟激情在线视频| 亚洲日韩精品国产一区二区三区 | 国产精一品亚洲二区在线播放| 久久精品国产亚洲av忘忧草18| 婷婷伊人久久大香线蕉av| 少妇被爽到高潮动态图 | 网禁拗女稀缺资源在线观看| 解开警花的裙子猛烈进入| www国产精品内射熟女| 中国大陆高清aⅴ毛片| 老头边吃奶边弄进去呻吟| 无码国产成人午夜电影在线观看| 久久精品国产亚洲av电影| 精品人妻无码专区在中文字幕| 少妇高潮一区二区三区99| 久久亚洲精品成人无码| 国精产品自偷自偷综合下载| 亚洲av日韩av综合在线观看| 翘臀少妇被扒开屁股日出水爆乳| 国产成人无码国产亚洲| 久久精品九九热无码免贵| 亚洲综合欧美色五月俺也去| 亚洲中文字幕无码av在线| 97se亚洲国产综合自在线| 日日天干夜夜狠狠爱| 蜜芽国产尤物av尤物在线看 | 青楼妓女禁脔道具调教sm|