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B station counter-sink forming up tool

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Product Abstract:

Counter sink tool form up 1.Before forming must pre-punch hole firstly, adjust the hole’s diameter so as to adjust the countersink hole’s depth. 2.The form up counter sink lower die must be correspondent with plate thickness. Different plate thickness requires different die.


Product Description

Counter sink tool form up

 

1. Before forming must pre-punch hole firstly, adjust the hole’s diameter so as to adjust the countersink hole’s depth.

2. The form up counter sink lower die must be correspondent with plate thickness. Different plate thickness requires different die.

3. The plate around the sink hole will have slight deformation due to squeeze.

4. For a large plane squeezing or special extrusion, requiring special inserts design.

5. The min plate thickness should be larger than 1.0mm (t>=1.0mm) for processing sink hole.

6. Suggest customer to order different dies so as to process different plate thickness.

 

For punch body, we produce it with SKH-51. It has another name of high speed steel. This is an alloy steel with complex composition. It includes tungsten, molybdenum, chromium, vanadium, cobalt and other carbide forming elements. The total amount of alloying element arrive to 10%-25%. On the condition of hot heat (around 500℃) that emerging with high-speed punching, it will keep high hardness and HRC can arrive above 60. This is also the main feature of high speed steel which is called red hardness. 

 

This material can make the toolings more durable and wear-ressistant which will cause a longer tooling life.

 

The die material we choose is Japanese imported special steel DC53, which is a new type tooling steel improved from SKD11. This material overcome the weakness of SKD11’s insufficient tempering hardness and toughness. The strength and hardness is excellent while doing heat treatment, HRC can arrive to 62-63.

DC53 steel’s toughness in cold die steel is more prominent. Tools made by DC53 will have little cracks and cracking which will greatly improve the tooling life.

 

FOR PUNCH BODY: SKH-51

FOR DIE: DC53

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