Aug. 01, 2019
With the refinement of industrial electronics, stamping parts of the industry requirements are increasingly high, which includes the shape of stamping parts. In the process of stamping, it is easy to produce material turnover and distortion, which affects the quality of products. Today, we share our experiences: Why do metal stamping parts turn over material distortion and how to fix it?
Stamping Parts in progressive die, through the method of stamping parts around the remainder to form the shape of the stamping. The main reason of material turnover and distortion of stamping parts is the impact of blanking force. When punching, due to the existence of blanking clearance, the material is stretched on one side of the die (material warps up) and compressed on the side of the punch. When the unloading plate is used, the unloading plate is used to compress the material to prevent the material on the concave die side from warping up. With the increase of the pressure on the unloading plate, the material near the punch side is stretched (the compression force tends to decrease) , and the material on the concave die surface is compressed (the tensile force tends to decrease) . The reversal of the stamping is caused by the material on the die surface being stretched. So when blanking, pressing and pressing the material is the key to prevent the blanking part from turning over and twisting.
Causes and solutions of material turnover and distortion in stamping parts:
1.Caused by the Burr of the punching part when blanking.Need to repair the blanking cutting edge, and it is reasonable to pay attention to check whether the blanking is clearance.
2.When blanking, the blanking part has turned over material, distorted deformation, resulting in bad forming after bending, need to start from blanking blanking work station.
3.Buckling of stamping parts during bending. Mainly for U-bend and V-bend. How to deal with this problem, how to guide the stamping parts before bending, how to guide the stamping parts during bending, and 4.how to press the material to prevent the stamping parts from slipping during bending are the key points to solve the problem.
Why can turning material twist appear to hardware stampings? How do you fix it? As I'm sure you've all heard,. The main reason of material turning distortion is the influence of blanking force and the unreasonable and uneven blanking clearance. The above methods can solve these problems effectively and avoid material turning and distortion.