Common problems and solutions for metal stamping parts trial molds, can be collected

For metal stamping parts forming, pressure riveting, bending and other forming processes encountered difficulties, the designer summarized some common problems and solutions for trial molds, for your reference: The straight edges of the forming and bending are not straight, and the size is not straight. Reasonable, the reasons for the analysis may be: 1. The pressure line and reserved angle were not considered when designing the metal stamping process; 2. The die blanking force was insufficient; 3. The mold knife edge was unevenly worn and asymmetrical or the forming force was uneven; 4. The design of the height of the mold is unreasonable; countermeasures: 1. Increase the pressure line or pre-forming; 2. Increase the blank holder force of the spring; 3. Grind the knife edge gap, round corners and polish; 4. Design the height dimension to be high, greater than the minimum limit Size; The metal stamping parts have cracks after forming. The analysis reasons are: 1. R is too small in the forming, 2. The texture direction of the material is inconsistent with the forming direction, 3. The stamping burrs face outwards, 4. The plasticity of the metal stamping parts is poor; countermeasures: 1. Increase the inner R. 2. The texture direction of the material is designed to be consistent with the forming direction. 3. The burr surface is designed at the inner fillet of the forming. 4. The soft material is replaced. The forming of metal stampings causes the thickness of the material to become thinner. The reason is analyzed. :1: The R in the cavity is too small, and the gap between the upper and lower molds is too small. Countermeasures: 1. Increase the R of the cavity and adjust the gap between the upper and lower molds; The above article comes from the 18 years of metal stamping parts processing and automotive stamping parts customization, reprinted Please indicate the source. [Related recommendation] Learn more: How much do you know about new energy automobile stamping parts? Learn more: Experience sharing in the stamping processing industry Learn more: How to draw a drawing of precision metal stamping parts, please understand these steps