The punching needle is an essential accessory during stamping die operations, but what is a stamping die? To put it simply, a stamping die is a mold produced by deforming data under pressure, and the punching needle is a component installed on the press machine. Its main function is to directly contact the data (metal or non-metal), causing the data to separate or undergo plastic deformation, and then obtain the required parts.

What is the manufacturing process of punching needles?

1. Drawing and cutting

Measure the required length of the punching needle based on the drawings from the raw materials that have passed the laboratory test, and then cut them into round bar blanks one by one.

2. Heat treatment

The cut round rod is first subjected to rough machining, and then heated to 800-1300 degrees Celsius in a high-frequency electric furnace or salt bath furnace for 2-5 minutes. After oil cold quenching and precision quenching heat treatment, the needle tip hardness can reach Hv590-800. Then, low-temperature tempering treatment is carried out.

3. Grinding processing

The hot treated punching needle is processed into products through processes such as lathe, flat grinding, R machine, and centerless grinding.? 4. Polishing?

Polishing is the process of removing oil stains, rust, and other debris from the surface to clean it up.

5. Inspection and storage

According to the required target index for inspection, qualified ones can be packed and stored in the warehouse.

Main products: various punching molds and external punching processing, including flower punching, sharp mouth punching, double-sided punching, double-sided needle, punching needle, leather punching special, black punching, EVA punching (horn punching), edge cutting holes, knife die hardware accessories, and customized development of various punching molds and punches.

Article source: Leather punching machine manufacturerhttp://www.hslichuang.com/