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:9767
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 
久久丫精品久久丫| 初尝黑人巨砲波多野结衣| 强开少妇嫩苞又嫩又紧九色| 草草浮力影院| 国产绳艺sm调教室论坛| 国产精品多p对白交换绿帽| 国产精品一品二区三区的使用体验 | 国产喷水1区2区3区咪咪爱av | 日本道色综合久久影院| 亚洲av无码专区色爱天堂| 无码精品人妻一区二区三区人妻斩 | 国产精品国产三级国产a | 国产精品麻豆成人av电影艾秋| 黄色视频免费在线观看| 2020无码专区人妻系列日韩| 黑人玩弄人妻中文在线| 亚洲av永久无码精品一百度影院| 日韩av无码社区一区二区三区| 日日摸日日碰人妻无码| 里番本子纯肉侵犯肉全彩无码| 国产欧美一区二区精品性色| 国产精品免费av片在线观看| 四川丰满少妇被弄到高潮| 无码专区丰满人妻斩六十路| 欧美孕妇变态重口另类| 肉大捧一进一出免费视频| 纯爱无遮挡h肉动漫在线播放| 麻豆国产尤物av尤物在线观看| 欧美丰满大乳高跟鞋| 人妻av无码一区二区三区| 亚洲日韩一区二区一无码| 久久夜色精品国产欧美乱| 国产精品原创巨作av女教师| 亚洲第一av网站| 337p西西人体大胆瓣开下部| 最近2019中文字幕一页二页| 中国老太卖婬hd播放| 中文字幕在线亚洲精品| 精品国产sm捆绑最大网免费站| 一本一本久久a久久精品综合麻豆| 成年男女免费视频网站|