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Common defects of automobile sheet metal parts in the process of stamping forming

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Common defects of automobile sheet metal parts in the process of stamping forming

Date of release:2018-05-24 Author:Source network 点击:

Common defects of automobile sheet metal parts in the process of stamping and forming are as follows:

Common defects, such as crack, dark injury, burr, wrinkle, deformation (hole, edge), hairpulling, scratches, holes not punched (or missed punch holes), cushion waste, bump (convex and concave points), scratches, etc.

Causes of tension:

1. Mold reason: the gap between the convex and concave dies is too small; Uneven arrangement of drawbead; The round Angle of concave die mouth or drawbead groove is too small; The flanging is not smooth

2. Equipment reason: poor edge pressing force; The blank size is too large or inaccurate

3。 Operation: insufficient or improper lubrication

Preventive measures: 1. Adjust the edge - pressing force

2. Adjust the clearance of the mold to make it larger and even

3. Change the number and position of the drawbar

4. Increase the radius of the concave mould and the round Angle of the drawing bar

5. Improve the surface quality of the edge pressing surface

6. Improve lubrication conditions

7. Adjust the shape and size of materials and blank

Reasons for hidden injury: 1. Uneven arrangement of drawbead; The round Angle of concave die mouth or drawbead groove is too small; The flanging is not smooth.

Development of automation equipment manufacturing, benefiting from all walks of life, as a high degree of mechanization of sheet metal processing industry, the benefit is one of the biggest, in the case of labor costs soaring, and is becoming more and more elaborate and complicated cases in processing parts, industrial sheet metal parts processing industry are also constantly adjust their own production mode, makes it more and more humanized.


Industrial sheet metal parts



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