For users, increasing the service life of the pallet mold can greatly reduce the stamping cost. The factors that affect the service life of the pallet mold are as follows:
1. Material type and thickness;
2. Whether to choose a reasonable mold clearance;
3. The structure of the tray mold;
4. Whether the material is well lubricated during stamping;
5. Whether the tray mold has undergone special surface treatment;
6. Such as titanium plating, titanium carbonitride;
7. Align the upper and lower turrets;
8. Reasonable use of adjusting shims;
9. Whether the beveled die is used correctly;
10. Whether the mold base of the machine tool is worn;
Pallet mold grinding
1. The importance of grinding
Regular polishing of the pallet die ensures consistent stamping quality. Regular grinding of the pallet mold can not only improve the service life of the pallet mold, but also improve the service life of the machine tool. The correct timing of sharpening must be mastered.
2. The specific characteristics of the pallet mold need to be sharpened
For sharpening of molds, there is no strict number of hammer strokes to determine if sharpening is required. It mostly depends on how sharp the blade is. It is mainly determined by the following three factors:
(1) Check the fillet of the cutting edge. If the corner radius reaches R0.1mm (R value cannot exceed 0.25mm), sharpening is required.
(2) Check the stamping quality. Are there any large glitches?
(3) Judge whether sharpening is required according to the noise of machine punching. If the same pair of dies has abnormal noise when punching, it means that the punch is blunt and needs to be sharpened.
Note: The edge of the blade is rounded or the rear of the blade is rough. Sharpening should also be considered.
3. Sharpening method
There are many ways to sharpen pallet molds, this can be done with a special sharpener or on a surface grinder. The sharpening frequency of punch and die is generally 4:1. Please adjust the mold height after sharpening.
(1) Harm of incorrect sharpening method: Improper sharpening will aggravate the rapid damage of the die blade, resulting in a greatly reduced number of hammer blows per sharpening.
(2) The benefits of the correct sharpening method: regular sharpening of the mold can keep the punching quality and precision stable. The blade of the mold is damaged slowly and has a long service life.
Post time: Apr-01-2022