Self inspection requirements for precision metal stamping die parts processing

We often say that we have to learn from Zeng Zi and think twice about ourselves. The same is true for precision metal stamping die parts processing. Only through layer upon layer quality inspection can we finally give customers satisfactory products. Yize mould precision metal stamping die parts processing and manufacturing is equipped with high precision processing equipment imported from Japan, the highest precision of the die is controlled within ± 0.005mm. For the mold quality and delivery time to provide a strong guarantee to better meet customer demand. This is also inseparable from the self inspection requirements and standards of Yize.

1、 Shape
1. Check whether the shape and position are correct according to 3D, especially the distinction between positive and negative parts
2. The deformation is within 0.002, and the deformation of small parts is within 0.005

2、 Tolerance
1. All dimensions should be positive and negative
2. The overall dimension must be within 0.001 and the cumulative tolerance must be within 0
3. The tolerance should be in the middle
4. If there are text requirements, it shall be processed according to the text requirements
5. The size of the same position in different directions should be within 0.002, and there should be no platform
6. There should be no bell mouth at the molding position. The side of the step and groove should be straight
7. The matching arc must be machined according to the tolerance, and the formed arc is within 0.01

8. The escape size of hanging platform should not be higher than that of forming surface

3、 Right angle
The right angle of parts should be within 0.002

4、 Qingjiao
The fitting position and small parts clearance angle are less than 0.03. The forming position is generally less than 0.05

5、 Deformation
1. After the process is completed, the deformation is detected in three directions and controlled within 0.002
2. The height shrinks or expands in the direction of the tab
3. The position of discharge forming should be checked for deformation

6、 Finish
1. The finish should be fine, and there should be no obvious sand damage, and the surface should not be scratched
2. There shall be no carbon deposit during discharge, the lines shall be processed according to the finish comparison table, and there shall be no bench mark on the discharge interface
3. The wire cutting shall be free of corrosion and rust

7、 Appearance
The parts shall be free of bruise, tread angle, collapsed edge, fried edge and burr

8、 Missed processing
1. Mark the processed size on the original drawing with fluorescent pen and record the processed size truly
2. Finally, confirm the shape with CAD and 3D, and there should be no missing machining
3. All departments should communicate with each other in time for public location processing

Strict processing self inspection requirements and standards can guarantee the precision requirements of precision metal stamping die components. We put the summary discussion and specification of production quality in the first place of the company's quality management. Through this continuous summary, learning and growth, we can improve the overall production technology level of our company, and provide customers with services beyond customer expectations.