Скачать или смотреть Punches - The Important Tools for Making Screws

There are two or more punches involved. The first punches deforms the material into approximate shape and subsequent punches
finish the job.

During operation, the punches are subjected to high power loads. Therefore, punches for cold heading processes are made of high-strength steels with increased hardenability, which have certain mechanical properties that contribute to an increase in resistance.

We are manufacturing punches for cold heading of fastener industry, such as screws, self-tapping screws, bolts, nuts and parts: carbide first punches, second punches.
Typically, each die station in a heading machine has two punches that oscillate to form the fastener head. The first punch action partially shapes the head, known as the coning metals, while the second punch completes the head.

Advantages of products：

High precision: After standardized production, cold heading punches are high precision, enable precise shaping of metal for consistent quality products.

Longer lifespan: High-quality cold heading punches, first punch made of tungsten carbide, second punch made of HSS, both have excellent wear resistance, resulting in longer die life and reduced downtime for replacement.

Increased productivity: The use of durable and precise cold heading punches can improve production efficiency, reducing scrap and material waste, and increasing yield.


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