连接器端子剪切面精冲分享

qhzeng

                        Fine blanking of connector shear surface


To All:
        Happy New Year!
        Attached photograph is my empirical analysis！Hope to help people in need。

         Whenthe pitch of the connector is reduced (such as pitch=1.0mm or 0.5 mm).Inthis case,

The percentage of shear plane relative to copper and the roughnessof shear plane are very likely

Tto reach a high standard (such as 80% shearplane).In the face of such a shear surface problem，

which methods should be used and what conditions should beconsidered to overcome in stamping die design?

Experience:

1. The width of reserved finishing material shouldbe 25% of the plate thickness, and then it should be corrected according to thecondition of die test

2.The clearance between punch and knife edgeshould be 2.0% of the plate thickness (it is also required for roughing)

      Please refer to the attachment for details! Welcom to contact me!

    Samenumber of mobile wechat:13422855432

B.G

                              QH Zeng

                             2021/2/5 to Wuhan

         

qhzeng

连接器端子剪切面光亮带经验分享！

LIAOYAO

这些照片在论坛里看过。
不能用“Fine blanking”来表述，应该是用“Shaving”来表述。
俺厂用过比25%T还低的比值
照片的光洁度都还没达到光可鉴人的的水平。

qhzeng

No. 4 The bright band of shear plane reaches 95%
Which Experience sharing！
Which Experience sharing！
Which Experience sharing！

littlegrass

不是精冲结构模具,一般结构的具体到产品的时候,其实难度很大!图片上这种端子其实没有什么更好的办法来做,因为产品太小了!,零件强度很弱!

LIAOYAO

例如曾工说的间隙，俺是直接用公式计算得出的，不是通过试模后得出。上个世纪末还在画图时，一个封闭刀口就用上了几种间隙值，搞的加工厂晕头转向的。

fdszlf

感谢楼主分享，虽然还差一些详细数据，但是已经有很强的参考价值了。

littlegrass

那份档案我也保存了的!

另如下设备对塑胶零件镜面加工很方便!可以看看,外资企业有的有!苏州园区泰科好像有一台!

qhzeng

本人曾在FSK服务十几年，专业开发设计苹果手机连接器模具，年前看到资料库里有这么一份资料值得分享，就以图文并茂的方式整理了一下分享给大家！不喜欢的可以忽略不计！

Ｏ记

多谢分享！