Processing about 60 degrees of material, what is good?
Cubic boron nitride cutter.High hardness steel castings casting forming, high hardness and difficult machining, casting surface roughness, especially large steel castings, casting defects may occur (such as hard, white, etc.) to meet performance requirements of tool materials such problems is very high. Cubic boron nitride cutting tool BN-S20 material can not only low speed, high speed machining of steel castings, but also large margin and intermittent cutting high hardness steel castings
There is a lot to be said about, but this process makes me want to answer1, the hardness of the discussion of the statement is very chaotic, hardness must be explained what hardness, and not just the number of values, the production does not mean what hardness, generally refers to the HRC (Rockwell hardness)2, if the Rockwell hardness is around 60, if the hard alloy tool steel (general Rockwell hardness of 65) to move the car, but only for each knife cutting depth in 0.1mm. and tool wear, not economic practice. For this kind of hard material available boron carbide or diamond cutter head. (if the small batch the grinding wheel grinder, corrector is also available)The quenching hardness of 3,45 steel is not correct, the quenching hardness of this steel is HRC52~56
The 60 degree is the hardness of the material. With a carbide cutter. Their hardness is 89~93 degrees. At 800~1000 DEG C can undertake cutting.
