Tungsten Carbide Tools with Aluminum Alloy Material

1.Free cutting aluminum  alloy
The material is widely applied  in the aerospace industry, the suitable tungsten carbide tools include K10, K20, PCD with the cutting speed varied from 2000 to 4000m / min. Its feed rate is 3 ~ 12m / min, rake angle is 12 ° ~ 18 °and after angle is about 10 ° ~ 18 °whereas the blade angle up to 25 °.

2.Cast aluminum alloy
According to the different Si contents in cast aluminum alloy , the tungsten tool selection is different.If the Si content is less than 12% of the cast aluminum alloy ,the suggestion tool is K10, Si3N4. If the Si content is more than 12%, it can be PKD (artificial diamond), PCD (polycrystalline diamond) and CVD diamond coated tools. For the over silicon aluminum alloy if si content is up to 16%~18% , the preferred one is PCD or CVD. Specially, for diamond coated tools, the cutting speed is around 1100m / min, while feed rate is 0.125mm / r.
 

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