Cold stamping uses specialized machinery known as a stamping die to transform raw materials into parts or semi-finished goods.
How can the lifespan of stamping dies be extended?
1. The mold's design is reasonable
The blanking die should select the proper blanking gap as much as feasible to minimize the blanking force and die wear under the assumption that the workpiece will be of high quality.
2. Material selection for the mold
If the material's characteristics don't match the mold's specific usage criteria, the mold will fail sooner than expected. Hardness, wear resistance, plastic deformation resistance, fracture resistance, thermal fatigue resistance, and other characteristics of the mold material are just a few.
3. Boost the caliber of mold production and processing
The wear resistance, fracture resistance, and anti-adhesion ability of the mold, which directly affect the service life of the mold, are closely related to the surface quality of the working portions of the mold. The life of the die is significantly influenced by several factors, most notably the surface roughness value. The durability of the die will be impacted, as well as the corrosion resistance of the workpiece surface, if the surface roughness value is too high. These two factors have a direct bearing on the service life of the die.
To prevent leaving machining tool markings, the dimensions and shape accuracy of the mold must be tightly assured during production and processing. To avoid stress concentration fractures during use, the transition part must be flawless and free of tiny flaws. To reduce machining stress, tempering should be done following electrical machining and grinding.
4. Pay attention to the materials' processing quality.
The life of the mold is significantly impacted by the difference in the material to be processed and the difference in thickness. The force exerted on the mold and its relatively short lifespan increase with the strength and thickness of the material to be treated. When stamping, adhesion and mold wear will happen if the material to be processed and the mold material have a high degree of affinity.
5. Pick cost-effective stamping equipment
The accuracy and rigidity of stamping machinery, such as presses, are crucial for the die's lifespan. Cold stamping dies have a much longer service life when using stamping equipment with high precision and good stiffness.
6. Lubrication and blanking
Good lubrication conditions can considerably lengthen the life of a die by reducing wear, friction heat, and punching force.
7. The prudent use and upkeep of molds
To prevent accelerated wear, the depth of the punch entering the die during blanking operation must be closely regulated. The cutting edge of the convex and concave die will unavoidably show wear and wear groove lines after the die has been used for a while. At this point, mending the mold beforehand can lower the friction force, stop the wear groove from cracking, prevent an additional bending moment from the unequal gap between the convex and concave mold after wear, and extend the mold's useful life.
JTR can assist with stamping. It is possible to produce stamping dies in large quantities. You can get in touch with JTR to have any associated issues taken care of.
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