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Zhongshan jianshi precision hardware co. LTD| How to solve metal stamping parts wrinkle | ||||
| Publisher:admin | Add time：2019/10/17 | viewed：2317 | ||
| How to solve metal stamping parts wrinkle? Causes of wrinkling of metal stamping parts: 1, the positioning of the blank is unstable, resulting in local pressure material, pressing surface shape is not appropriate, resulting in uneven material. 2. The blank holder force is not enough and the gap between the pressing surface is not suitable. 3, test blank too soft, low material strength, blank size is too small, unable to press material. 4, too much lubricating oil or brush frequency is too frequent, or brush position is not appropriate. 5. Improper direction of stamping parts. Methods to control wrinkling of metal stamping parts: 1, for the blank positioning instability, we can improve the positioning, when necessary to add pre-bending process, to ensure that the stamping parts will not be out of alignment. At the same time, the shape of the pressing surface can be modified to ensure the quality of metal stamping parts, to avoid the shape of the pressing surface does not move, resulting in uneven material. 2, look at the state of wrinkling, if wrinkles in the uniform production around the parts, should be judged as the pressure force is insufficient, gradually increase the pressure force can be eliminated. If the drawing taper and hemisphere pieces, can be used to increase the drawing bar to increase the plate diameter internal tensile stress, in order to eliminate wrinkles. Adopt "inside tight and outside tight" principle to eliminate "inside tight and outside tight" problem. 3, in the case of not affecting the requirements of the vehicle to replace the blank too soft material, to ensure the quality of the parts, avoid wrinkling. 4. For lubricating oil, brush oil work shall be carried out according to the requirements of the operating rules and regulations, to ensure the amount of brush oil and the position of brush oil, the correct number of brush, to avoid wrinkling. 5. In view of improper stamping direction, simulation software should be used in the early stage of design to analyze the manufacturing process, so as to ensure the stamping direction of the products. When the requirements on the quality of the products are high, the mold should be re-developed and the stamping direction should be adjusted | ||||
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