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Tungsten Carbide Die Punching Pins Ejector Punch For Stamping Moulds
Precision Manufacturing Capabilities
Manufacturing Diameters from .004 to 1.250 inches while holding tolerances down to .0001 inches (based on your drawing)
Manufacturing Lengths up to 12 inches long
Surface Finishes down to 2 micro (Ra or RMS)
Manufactured in metric also for specials and custom parts
Straightness up to .0004 T.R.I., depending on part design could be tighter
Product Specifications
Material
Tungsten Carbide
Hardness
60-80HRC or Depend on the material
Heat treatment
Available
Service
Made-to-order
Surface treatment
TiCN, TiN, Aitain, Ticrn, nitriding, Black oxygened, Black coating etc available
Closest tolerance
± 0.01mm
Polishness
Ra0.6
Axiality
0.005mm
Verticality
0.005mm
Manufacturing Process
1. Drawing, cutting
The raw materials that have passed the test are drawn into a desired diameter size by a wire drawing machine, and then cut into a rod-shaped punching pin blank of a fixed length.
2. Heat treatment
Before the heat treatment, the punching blank is firstly straightened on the straightening platform with a dial gauge, and then placed in a high-frequency electric furnace or a salt bath furnace to be heated to 800-1300 degrees Celsius for 2 to 5 minutes. After oil quenching and hardening, the tip hardness of the quenching heat treatment can reach Hv590-800. Then the low temperature tempering treatment is carried out.
3. Grinding processing
The punching pin is clamped on the spring collet of the machine tool, and the grinding forming process is separately performed according to the angular requirements of the various needle bases of the punching pin.
4. Polishing
Polishing is to clean the surface of the oil, rust, etc., and clean the surface.
5. Inspection, storage
According to the required index, the qualified ones can be packed into the warehouse.
Our Service Advantages
Team Work - We have experienced workers, programmers, QC, sales and management team. Every member is firmly connected to well fulfill customers' orders.
Skill Development - We hold skill explore training every month. Engineers, programmers and workers share new ideas and skills together to continuously improve machining skill.
Excellent Communication - Sales members are fluent English speaking, proactive and have knowledge about machining. They can easily understand what you want.
