How do metal stamping manufacturers solve the problem of wrinkles in the middle of stretched products-hardware

Stretching parts have many successful methods, and there are just as many bad problems. For metal stamping manufacturers, how to find and solve problems is fundamental. Following Xiaoshuo's communication with you and some solutions: Original picture: At the beginning of deep drawing, most of the material is in the air, and the blank holder force is too small, the corner radius of the die is too large or the lubricant used too much. Making the radial tensile stress smaller makes the material lose stability and wrinkle under the action of the tangential compressive stress. Methods: 1. Increase the blank holder force or adopt a rolling rib structure, reduce the radius of the die fillet or increase the material thickness slightly. 2. Use stretching oil. 3. Check the stress release mode of the mold concave and convex mold. , A hardware stamping manufacturer with 15 years of experience, has 20,000+ sets of customized stamping die processing and production, a daily production capacity of 3 million punching times, and 16 quality inspection procedures are strictly controlled. Quickly solve the time-critical problems for you, quickly solve the accuracy problems of stamping parts, and quickly solve the quality problems of mass production for you.