Analysis of metal drawing process of stamping parts-hardware

In the production and processing of stamping hardware, there are often stretching processes. What are the general stretching methods and processes? Xiaoshuo shares a few points with you: Stretching processing: using a platen device, using the punching force of the punch, part or all of the flat material is pulled into the cavity of the concave mold to shape it into a container with a bottom. The processing in which the side wall of the container is parallel to the stretching direction is a simple stretching processing, while the stretching processing of conical (or pyramidal)-shaped containers, hemispherical containers, and parabolic surface containers also includes expansion processing. Re-drawing processing: For deep-drawn products that cannot be completed by one-time drawing processing, it is necessary to re-draw the formed products after drawing processing to increase the depth of the formed container. Reverse stretch processing: Reverse stretch the stretched workpiece in the previous process, the inner side of the workpiece becomes the outer side, and the outer diameter of the workpiece is reduced. Thinning and stretching processing: Use a convex mold to squeeze the formed container into a concave mold cavity slightly smaller than the outer diameter of the container, so that the outer diameter of the bottomed container is reduced, and the wall thickness is thinned, which not only eliminates the deviation of the wall thickness, but also Make the surface of the container smooth. Hardware, 15 years of ingenuity focusing on stamping hardware, 5000 square meters production workshop, monthly processing capacity of 100+ stamping dies, daily production capacity of 3 million, 16 quality inspections strictly for quality control. Choose, choose to rest assured!