Causes and prevention of wall cracks of metal stamping drawing parts

Stamping factory processing, mechanical parts stamping parts, metal parts stamping parts, sheet metal parts, bending parts, etc. With the development of society, stamping products have developed into various fields, then in the stamping and drawing parts, the wall of the drawing parts What is the reason for being pulled apart? How to prevent it? There are several major reasons for wall cracks in the drawing process: 1. The radial tensile stress that the material bears during drawing cannot be too large; 2. The radius of the die fillet may be too small; 3. Poor lubrication during drawing; 4. The raw materials used are relatively poor in plasticity. 5. It is related to the tensile strength of the force transmission area of u200bu200bthe cylinder wall. 6. It is related to the tensile stress in the force transmission area of u200bu200bthe cylinder wall. 7. When the tensile stress of the cylinder wall exceeds the tensile strength of the material of the cylinder wall, the drawn part will be at the bottom The “dangerous section” where the fillet meets the wall of the cylinder is broken. How to prevent it: 1. Decrease the strength of the blank holder; 2. Slightly increase the radius of the die fillet; 3. Use lubricants correctly during processing; 4. Use materials with better plasticity or increase the annealing process in the workshop. 5. It is necessary to improve the mechanical properties of the material to increase the tensile strength of the cylinder wall; 6. By correctly formulating the drawing process and designing the die, reasonably determining the degree of drawing deformation, the radius of the die fillet, and the reasonable improvement of conditions for lubrication, etc. Tensile stress in the force transmission zone of the cylinder wall. Recommended article: Classification and introduction of stainless steel stamping and welding elbows Previous article: Classification and introduction of stamping and drawing dies