China Manufacturer Screw Second Punch OD up to 40mm Length up to 90mm Header Punch
Second punch is a conventional die for screw heading machine. It is used for producing screw head and groove parts.
We can produced the second punch accroding to the standard, and we can R&D accroding to the drawing, samples and customer’s request.
ORDERING SECOND HEADER PUNCHES
When ordering second punches you must specify the following:
Material stamped metal products (carbon or stainless steel, or others.)
Type of fastener’s head, standardized (JIS, ANSI, DIN, ISO, etc.)
The outer diameter and length of the punch D × L.
Coating of header punch working part:
uncoated
TiN (Titanium nitride) coating - yellow coated
ALiXCN (aluminum + titanium + chromium + nitride) coating – black coated (increases tool life by 20-25%)
TiCN, (titanium carbide nitride) – blue-gray coated
TiAlN (titanium aluminum nitride) – gray-blue or dark gray or violet-gray coated
Alcrona (AlCrN) ( aluminum chromium nitride) – blue-gray coated, is a titanium-free coating for a wide range of processing and forming applications. Alcrona has excellent wear resistance at low speeds and feeds and under high mechanical stress. At higher speeds where rigidity and oxidation resistance are important, Alcrona outperforms titanium-based coatings with operating temperatures up to 1100°C
