Metal stampings are common products in industrial production, and they are widely used. But how can we avoid the damage of metal stampings and extend their service life? First of all, I want to understand that the service life of the metal mold is related to many factors, such as mold structure design, mold steel selection, heat treatment, surface treatment, machining grinding, wire cutting process, stamping equipment, stamping materials and processes, mold lubrication, poor maintenance and repair, etc. Among the various factors that cause die failure, improper die structure and material selection account for about 25%, improper heat treatment accounts for about 45%, and process problems account for about 10%; Equipment problems, lubrication problems and other factors account for about 20%.

How to select materials for precision metal stamping?

It is a process to deform or fracture stainless steel, iron, aluminum, copper and other plates and dissimilar materials to a certain shape and size by using a punch and die. If the material of stamping parts is not selected properly, it is easy to have defective products, resulting in high costs. Then let's understand the requirements for selecting materials:

In the steel plate specification, no matter the fixed length plate or the coil plate, the same material and material thickness have different roll widths and different sales prices. Therefore, in order to reduce the cost of metal stamping, it is necessary to select the volume width range as far as possible from the perspective of formulating the purchase volume width, on the premise of ensuring the utilization rate of materials and without increasing the price.

If the size of plate with fixed size is properly selected, it is unnecessary to conduct secondary shearing after precision stamping to reduce cutting cost. For the coil, please try to select the forming specification of the coil and the process of unwinding forming, reduce the number of times, reduce the workload, and improve the work efficiency.

To determine the shape and size of the expanded sheet metal of precision stamping parts is the premise of analyzing the deformation degree of stamping parts, designing machinability and formulating process specifications. If the shape of the sheet is appropriate, not only is the deformation distributed along the sheet uneven, but also the forming limit can be increased, the height of the lug can be reduced, and the trimming margin can be reduced.

How to prolong the service life of stamping parts?

With the improvement of people's living standards, the quality requirements for stamping parts are getting higher and higher. The most important thing for stamping parts processing plants is to understand the needs of customers and meet their needs. The service life of stamping parts is a point of great concern for customers. How can the stamping parts processing factory operate to extend the service life of stamping parts? The precision stamping manufacturer will explain how to operate.

1. The precision stamping parts shall be inspected strictly before use, and the dirt shall be removed. Carefully check whether the guiding sleeve and die of the stamping parts are well lubricated.

2. Inspect the rotary table and mold installation base of the high-speed punch as planned to ensure the coaxial output precision of the left and right rotary tables.

3. Install the concave and convex die on the rotary table according to the installation procedure flow of the die to ensure that the orientation of the concave and convex stampings is consistent, especially for the stampings with specified orientation (non annular and square), so as to avoid reverse installation.

4. When the die seat and cavity knife edge of the stamping part are worn, stop using them immediately and repair them immediately, otherwise the wear level of the die knife edge will be rapidly expanded, the die wear will be accelerated, and the quality of the stamping part and the service life of the die will be reduced.

5. When installing the precision stamping die, the staff should use the soft metal materials (such as copper, aluminum, etc.) to make special tools for actual operation, so as to avoid damaging the stamping parts during the whole process of installation.

6. In order to better ensure the service life of the stamping parts, the spring of the die should also be removed and replaced on time to avoid spring fatigue and damage to the application of the stamping parts.

Factors influencing the dimensional accuracy of metal stamping parts

Different metal stamping products have different requirements for accuracy. As long as we meet the accuracy requirements of customers and comprehensively consider production costs, we can produce qualified stamping parts. The factors that affect the dimensional accuracy of metal stampings must be known by everyone. Let's have a look together.

The dimensional accuracy of metal stamping parts refers to the difference between the actual size of stamping parts and the basic size. The smaller the difference, the higher the dimensional accuracy of metal precision stamping parts.

The influencing factors are as follows:

1. Manufacturing precision of metal stamping die.

2. Gap between male and female dies.

3. Elastic recovery of materials after stamping.

4. Accidental factors in the production process, such as inaccurate positioning, unstable material performance, etc.

Final thoughts

After the installation of the metal stamping parts, attention should be paid to the maintenance to prevent rust erosion. In daily use, the metal stamping parts should be closed and opened gently to prevent damage caused by hard closing and opening. If these are done well, the service life of the stamping parts will naturally be extended.