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  • 有效解决五金冲压过程中对插针插孔尺寸不符的问题有哪些?
  • 本站编辑:杭州乐业电连接器有限公司发布日期:2020-02-10 18:15 浏览次数:

有效解决五金冲压过程中对插针插孔尺寸不符的问题有哪些?五金冲压件的生产过程中,会碰到插针插孔尺寸偏大或偏小,以及与凸模尺寸相差较大的情景,为了解决此类问题,我们除了思虑成形凸、凹模的筹划尺寸、加工精度及冲裁间隙等成分外,还要从以下几个方面去思考:

  其一,五金冲压件冲裁时:

  冲裁时产生的冲件毛边所致,需研修冲切刃口,并注意检查冲裁间隙是否合理。折弯时冲压件失稳所致,主要针对U形及V形折弯,对冲压件进行折弯前的导位、折弯过程中的导位,以及折弯过程中压住材料防止冲压件在折弯时产生滑移是解决问题的重点。

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其二,五金冲压材料时:

  材料所受拉应力增大,冲压件产生翻料、扭曲的趋向加大。产生翻料时,插针插孔尺寸会趋小。对材料的强压,使材料产生塑性变形,会导致插针插孔尺寸趋大。而减轻强压时,插针插孔尺寸会趋小。

其三,五金冲压件的生产时:

  如端部修出斜面或弧形,因为冲裁力缓解,冲件易发生翻料、污蔑,因而,插针插孔尺寸会趋大。而凸模端部为平面,插针插孔尺寸相对会趋小。

What are the problems that can effectively solve the discrepancy of pin socket size in the process of metal stamping? In the production process of metal stamping parts, we will encounter the situation that the size of pin socket is too large or too small, and the size of pin socket is quite different from that of punch. In order to solve this kind of problem, we should consider not only the planning size, processing accuracy and blanking clearance of forming punch and die, but also the following aspects:

First, when punching hardware stamping parts:

It is necessary to study the cutting edge and check whether the blanking clearance is reasonable. It is mainly aimed at U-bend and V-bend. The key to solve the problem is to guide the stamping parts before bending, during bending, and to press the material to prevent the stamping parts from sliding during bending.

Second, metal stamping materials:

With the increase of tensile stress, the tendency of turning over and twisting of stamping parts increases. When turning over occurs, the pin socket size tends to be smaller. The strong pressure on the material will cause plastic deformation of the material, which will lead to the larger size of the pin socket. When the pressure is reduced, the size of the pin socket will be smaller.

Third, the production of metal stamping parts:

If a bevel or arc is made at the end, because the blanking force is relieved, the punching parts are easy to turn over and smear, so the size of the pin socket will be larger. While the punch end is flat, the pin socket size will be relatively smaller.