With the refinement of industrial electronic products, various industries have increasingly high requirements for Metal Stamping parts, including the shape of metal stamping parts. In the process of metal stamping, it is easy to produce flipping and twisting phenomena, which affect product quality. This article summarizes the experience shared with everyone: Why do metal stamping parts experience flipping and twisting? How to solve the problem?

Metal stamping parts are formed in a progressive die by punching the remaining material around the metal stamping part to create its shape. The impact of punching force is the main cause of flipping and twisting of metal stamping parts. During punching, due to the presence of punching gaps, the material is stretched on one side of the die (warping upwards) and compressed on the side near the punch. When using a discharge plate, it is used to compress the material and prevent the material on the mold side from warping upwards. At this point, the stress state of the material also changes accordingly. As the pressure increases, the material near the convex mold side is stretched (compressive force tends to decrease), while the material on the mold surface is compressed (tensile force tends to decrease). The flipping of metal stamping parts is caused by the stretching of the surface material of the mold. Therefore, during cutting, pressing and compacting are the key to preventing metal stamping parts from flipping and twisting.

Reasons and solutions for flipping and twisting of metal stamping parts:

1. Caused by burrs generated during punching. Training is required for punching cutting edges, and attention should be paid to checking whether the punching gap is reasonable.

During the cutting process, the stamped parts may flip or twist, resulting in poor forming after bending. The cutting station needs to address this issue.

3. Instability of metal stamping parts during bending. Mainly for U-shaped and V-shaped bending. The key to solving this problem is to perform lead positioning before and during bending, compress the material during the bending process, and prevent metal stamping parts from sliding during the bending process.

Why do metal stamping parts experience flipping and twisting? How to solve it? I believe you already understand. The influence of punching force, unreasonable punching clearance, and uneven clearance are important reasons for the flipping and twisting of metal stamping parts. By using the above methods, these problems can be effectively solved, avoiding the flipping and twisting of metal stamping parts.