Common problems in the production of metal stamping drawing parts?
What are the common problems in the production of metal stamping drawing parts:
1. The shape and size of the metal stamping drawing parts do not match the shape and size of the metal stamping drawing parts. The main reason for the shape and size of the metal stamping drawing parts does not match. .
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 drawing parts
(1) When the angle between the bending line and the embossing direction of the sheet material does not meet the required layout, the bending line should be perpendicular to the embossing direction when one-way V-shaped bending; for two-way bending, the bending line and the embossing direction should preferably be 45 Spend.
(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 to problems in metal stamping drawing parts:
1. The metal stamping and drawing forming processing shape should be as simple and symmetrical as possible, and it should be deep drawn at one time as much as possible;
2. For parts that need to be stretched multiple times, under the premise of ensuring the necessary appearance quality, there should be traces that can occur during the stretching process on the inside and outside of the response;
3. Under the premise of ensuring the installation requirements, the side wall of the response should be stretched with a certain slope;
4. The distance between the bottom of the stretched piece or the edge of the hole on the flange and the side wall should be appropriate;
5. The corner radius of the bottom and the wall, the flange and the wall, and the four corners of the rectangular part should be suitable;
6. The dimensions of the metal stamping drawing parts cannot be marked together with the internal and external dimensions
