制服丝袜一区二区三区,亚洲av无码专区色爱天堂,大尺度无遮挡激烈床震网站 ,亚洲日韩激情无码一区

Welcome to Kunshan Hao Run Precision Mold Co.,LTD

Chinese|English|Homepage/Favorites

_Precision stamping parts | Precision stamping die |CNC precision machining |  Mobile shield  | Sheet metal processing

_Precision stamping parts | Precision stamping die |CNC precision machining |  Mobile shield  | Sheet metal processing
Kunshan Hao Run Precision Mold Co.,LTD
Contact: Miss Su
Mobile: 15995651409
Tel: 0512-87882109
Fax: 0512-57037099
E-mail: suesu@hrjmmj.com.cn
Website: szhongft.com
Address: No. 471 Road, Kunshan Development Zone Kunjia

News Center

Position:Homepage|Common Problem

What is the blanking gap? Why it is important to say that the clearance is important.

Author: ComeFrom: Date:2015/5/30 22:26:19 Hits:10189
The difference between the dimensions of the convex and concave parts is called the gap. Blanking die gap is the double gap. The gap value is represented by the letter Z. Gap is important, reflected in the following aspects:
1) the influence of blanking clearance on the quality of blanking parts
(1) clearance section quality effect of die gap is reasonable and the convex die and the concave die crack (crack) in stamping process meet and overlap, this section collapse angle is small, wide proportion of smooth, burr smaller, easy to remove. The section quality is better; if the gap is too large, the crack punch edge reasonable gap inward shift for a certain distance, the material not overlapping part of the upper and lower crack will be affected by the tension caused tear, the sinking angle increases, wool face widened, smooth cut, burr fat and long, it is difficult to remove section, poor quality; the gap is too small, the crack punch and die edge reasonable clearance outward shift for a certain distance on the middle part of the crack material, with the punching shear will be two times, so that the two optical surface, section and, due to the decrease of gap the material squeezed component increases, and reduce the angle of hair surface collapse, burr less, the best quality section. Therefore, it is a key to determine the correct blanking gap for the general blanking.
(2) the impact of the blanking clearance on the dimension accuracy of the material will produce a variety of deformation, so as to produce a rebound, so that the size of the workpiece is different from the die and the punch edge size. As a result, the size of the workpiece is changed, some of them are decreased. The general rule is that the hours gap, falling materials size is larger than the die size, out of the aperture is less than the convex mold size; large gap, size of materials and parts of concave die size is less than that out of the aperture is larger than that of the convex mold size.
2) the influence of the blanking gap is not great. But the gap is not big, but the gap has a great influence on the unloading force and pushing force. When the gap is larger, the friction resistance is small, and it is easy to unload material from the top of the convex mold and push the material from the die.
3) the impact of the blanking clearance on the life of the die is due to the punch, the material and the die between the punch and the die. And the size of the gap directly affects the size of the friction. The smaller the gap, the more serious the friction caused by friction, the shorter the life of the die, and the larger the gap, can make the wear and tear caused by the friction, thus improving the service life of the die.
Contact: Miss Su  15995651409  Tel: 0512-87882109  Fax: 0512-57037099  E-mail: suesu@hrjmmj.com.cn
Website: szhongft.com  Address: No. 471 Road, Kunshan Development Zone Kunjia
All rights reserved:Kunshan Hao Run Precision Mold Co.,LTD  Technical Support:KSGUOCHENG  Su ICP 15021490 
Link: Qimei electronic  Lenovo  BOE  Apple  ASUS 
99999久久久久久亚洲| 色噜噜狠狠一区二区三区果冻| 久久777国产线看观看精品 | 精品国产av一区二区三区| 日日摸日日碰人妻无码| 老湿机香蕉久久久久久| 精品无码av无码专区| 女人扒开屁股爽桶30分钟| 蜜桃麻豆www久久囤产精品| 男ji大巴进入女人的直播| 熟妇人妻无乱码中文字幕| 久久免费看少妇高潮v片特黄| 无码av波多野结衣久久| 好日子在线观看视频大全免费动漫 | 国产情侣久久久久aⅴ免费| 帅小伙自慰videogay男男| 国产成人精品999在线观看| 人妻献身系列第54部| 国产女精品视频网站免费| 国产精品伦一区二区三级视频 | 精品国产va久久久久久久冰| 中文字幕人妻色偷偷久久 | 亚洲欧美一区二区成人片| 国内少妇毛片视频| 无码人妻av一二区二区三区| 亚洲色大成网站www| 在线观看亚洲av每日更新| 亚洲裸男gv网站| 骚片av蜜桃精品一区| 亚洲精品乱码久久久久久蜜桃图片| 日韩一区二区三区射精| 内射女校花一区二区三区| 97人妻精品一区二区三区| 成人h动漫精品一区二区无码| 亚洲av人无码激艳猛片服务器| 亚洲国产一区二区a毛片| 无码久久精品国产亚洲av影片| 精品少妇一区二区三区视频| 品色堂免费论坛| 三上悠亚久久精品| 婷婷五月深深久久精品|