Nanjing Qianjin Sheet Metal Co., Ltd

Qianjin sheet metal company was found in 1989 and we have 2 factories and more than 110 people in each factory over 20 years development.

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Common Problems Of Sheet Metal Processing And Stamping Parts Processing
- Dec 21, 2018 -

Common problems of sheet metal processing and stamping parts processing

1. Burr: Punching or cutting corners of the process is not completely left with the material, steel plate truncation under the surface of the site to produce burrs, to truncate the surface as the benchmark, burr height of more than 0.2mm, the occurrence of iron powder will damage the mold and produce concave and convex. 2. Concave and convex: the material surface is abnormally raised or sunken, is the unwinding line has other materials (iron chips, dust) mixed up caused. 3. Roller printing: cleaning rollers or feeding rollers attached to foreign matter caused (in order to fix the pitch), in general, the sheet on the roll printing foreign matters can be removed. 4. Sliding printing: It occurs when a sudden stop or acceleration is caused by a roll slide. 5. Roll shredding may wrinkle the Edge: The Guide roller of the unwinding line perhaps produce a wrinkle scene from the Guide roller gap hour on the mold, due to the roll into the indomitable scale. 6. Scratches: The main reason for the scratches on the parts, the mold has sharp bruises or metal dust crumbs fell into the mold, to prevent it for grinding the mold on the scars and remove metal dust crumbs. 7. Bottom cracking: the main reason for the cracking of the bottom of the part is the poor plasticity of the material or the pressure of the die crimping ring too tight, to prevent measures for the replacement of better plastic materials or to relax the edge ring. 8. Side Wall Wrinkles: The main reason for the wrinkle of the side wall of the part is that the thickness of the material is not enough (relatively small allowable thickness is still thin) or the upper and lower die installation eccentricity, resulting in a large gap, the other side of the gap is small, to prevent measures for the immediate replacement of materials and readjustment of the mold.