4 stages of gear punching deformation process description (for reference)

The 4 stages of the gear punching deformation process: material compression deformation stage, material shearing stage, crack growth stage and material separation stage are explained as follows, for reference and understanding.

gearThe process of punching the teeth is the process of separating the sheets.The material at the separation point goes through four stages, namely the material compression and deformation stage, the material shearing stage, the crack growth stage and the material separation stage, as follows.

1. Material compression deformation stage

The surface of the material is under tensile and compressive stress; the material close to the cavity of the mold is tilted upward;

Material deformation is within the range of elastic deformation.

2. Material shearing stage

The material starts to slip under pressure, and tensile force and bending moment are generated inside the material. Due to the existence of the gap, the material near the punch is bent and deformed, and shear begins to appear.

3. Crack growth stage

The material continues to be under pressure, the slippage continues, and the material cracks at the edges of the convex and concave molds gradually increase.

4. Material separation stage

The material cracks at the convex and concave molds continue to increase and the cracks develop and merge to separate the materials.

The above is the description of the 4 stages of the gear punching deformation process, including but not limited to, welcome to add if there are any deficiencies.