Common problems and solutions in the production of metal stamping drawing parts

Metal stamping and drawing parts have been seen everywhere in our daily life. When metal stamping and drawing parts are produced in large quantities, various problems will occur due to various reasons. This article summarizes the experience of metal stamping manufacturers to share with you the metal stamping drawing Common problems and solutions in the production of stretched parts: 1. The shape and size of the metal stamping stretched parts do not match the shape and size of the metal stamped stretched parts are mainly caused by springing and inaccurate positioning, in addition to taking measures to reduce springback In addition, the reliability of blank positioning should also be improved. 2. The surface strain of the metal stamping and drawing parts is caused by improper material selection, low heat treatment hardness, poor finish, wear of the die fillet, poor surface quality of the curved blank, excessive material thickness, and craftsmanship. Caused by unreasonable plan selection, lack of lubrication and other reasons. 3. Bending cracks in metal stamping tensile parts (1) When the angle between the bending line and the embossing direction of the sheet material does not conform to the specified layout, the bending line should be perpendicular to the embossing direction when the one-way V-shaped bending is used; when the two-way bending, the bending The line and the embossing direction are preferably at 45 degrees. (2) The plasticity of the tensile parts is poor. (3) The bending radius is too small and the pickling quality is poor. (4) Insufficient lubrication-high friction. (5) The fillet radius of the convex and concave mold is worn or the gap is too small-the feed resistance increases. (6) The quality of the shearing and blanking sections of the stretched parts is poor-burrs and cracks. (7) The thickness of the material is seriously out of tolerance-difficult to feed solutions: 1. The shape of the metal stamping and drawing forming process should be as simple and symmetrical as possible, and it should be drawn at one time as much as possible; 2. Parts that need to be stretched multiple times, On the premise of ensuring the necessary appearance quality, the response should have traces that can occur during the stretching process on the inside and outside of the response; 3. On the premise of ensuring the installation requirements, the response should have a certain slope on the side wall of the stretched part; 4. The distance between the bottom of the stretched part or the edge of the hole on the flange and the side wall should be appropriate; 5. The radius of the corners of the bottom and the wall of the stretched part, the flange and the wall, and the four corners of the rectangular part should be suitable; 6. The metal stamping pull The dimensions of the extension parts cannot be marked together with the internal and external dimensions. Common problems and solutions in the production of metal stamping drawing parts share the above content, metal stamping manufacturer professional metal stamping factory, provide precision metal stamping parts: metal stamping shrapnel, metal stamping drawing parts, metal stamping heat sink, metal stamping die processing .