Metal stamping parts punching size does not conform to the requirements of the problem
May encounter in the production of metal stamping parts, punching small or large size and the punch size is large, in order to solve such problem, we thought in addition to forming the planning of the convex and concave die size, machining accuracy and the composition such as blanking clearance, but also from the following several aspects to think.
1, when the cutting salt pieces caused by burrs, punching parts, need to study and pay attention to check whether the blanking clearance is reasonable.
Bending instability caused by stamping, mainly for U and V bending, to bend before the stamping guide, the guide, in the process of bending and bending process of medium pressure live material prevent slippage during bending on pressing is the key to solve the problem.
2, material tensile stress increases, stamping parts produced material, distortion tends to increase.
Produce double way, punching size will be small.
Crush of material, make the material deformation, can lead to punching size is big.
And reduce pressure, punching size will be small.
3, such as end of inclined plane or curved, blanking force, because salt pieces easily occurs, slander, therefore, punching size is big.
And punch end plane (
No cant or arc)
When the punching size is relatively small.
Stamping has been wholeheartedly committed to providing precision metal stamping parts, deep tillage technology unceasingly, solve the problem of stamping punch size does not conform to the requirements.
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