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://itksk.com//


中文字幕人妻丝袜成熟乱| 日韩 无码 偷拍 中文字幕| 久久亚洲中文字幕精品一区| 自愉自愉产区二十四区| 人妻激情偷乱视频一区二区三区| 精品熟女碰碰人人a久久| 久久精品麻豆日日躁夜夜躁| 国产在线第一区二区三区| 久久亚洲精品ab无码播放| 亚洲男人第一无码av网站| 人妻精油按摩bd高清中文字幕 | 精品国产午夜福利在线观看| 无码人妻熟妇av又粗又大| 中文字幕乱偷无码av先锋| 色综合久久中文娱乐网| 亚洲av永久纯肉无码精品动漫 | 国产a国产片国产| 偷自拍亚洲视频在线观看99| 男女男精品免费视频网站| 国模肉肉超大尺度啪啪| 国产成人综合亚洲av第一页| 国产亚洲日韩欧美另类第八页| 波多野42部无码喷潮| 欧美性大战久久久久久久| 两个人看的www免费视频中文| 亚洲精品成人网久久久久久| 中国a级毛片免费观看| 麻豆亚洲国产成人精品无码区 | 亚洲熟妇无码av另类vr影视| 白嫩少妇激情无码| 久久亚洲中文字幕精品一区| 老子影院午夜精品无码| 99久久国产综合精品五月天| 少妇人妻系列1~100| 亚洲国产成人久久一区二区三区| 精品麻豆国产色欲色欲色欲www| 亚洲人成人网站色www| 少妇人妻邻居| 大地资源网中文第五页| 美女末成年视频黄是免费网址| 粗大黑人巨精大战欧美成人|