High hardness casting include high hardness cast iron parts and cast steel components.Because of the high hardness of the casting parts,they will be difficult to machine, and it also will have some casting defects, which will be more difficult to machine. For machinery industry, it is always a big challenge.
With the improvement of the technology, manufactures require more strictly on the product quality and production efficiency.Because of all above problems, the cutting tools for machining high hardness castings need have red hardness,abrasive resistance, impact resistance and Fracture resistance, traditional cutting tools can;t meet all these requirements. The hardness of cbn insert is only second to diamond tools, and both of them are called superhard cutting tools. CBN Insert will be the most suitable cutting tools for machining casting parts.
Halnn is the first enterprise of researching cbn insert in Henan provience, and has researched BN-K1 and BN-S20 solid cbn insert specific for high hardness casting parts. Comparing with traditional cutting tools, BN-S20 and BN-K1 adopt non-metal adhesive, which not only improve the impact resistance of the insert, but also not chipping when machining high hardness casting parts with large allowance.
One application case of BN-K1 solid cbn insert machining slurry pump body:
Machining Materials: High Chromium Cast Iron (Cr26)
Hardness: 60HRC
Insert Model: BN-K1 CNMN120712
Cutting Parameters:Vc=75m/min,Fr=0.1mm/r,ap=3.5mm
Machining Effect: Comparing with ceramic cutters, the cutting speed of BN-K1 is about 3 times of ceramic insert, and the feed rate is same. The tool life of Halnn BN-K1 will be about 7.5 times of ceramic insert. We can see that Halnn BN-K1 has excellent impact resistance, it not only improve the process efficiency, but also reduce the production costs.
And another CBN Grade BN-S20, which is researched specific for high hardness cast steel parts,such as high manganese steel, high speed steel,ect. When BN-S20 turning Crusher part, the cutting parameters: Vc=80m/min,Fr=0.3mm/r, ap=7.5mm.Compared with carbide insert, the cutting speed of cbn can be 3 times higher than carbide insert, and the cutting depth can be 3 times, the efficiency improved about 12 times.
Halnn Superhard, as the professional leader of hard materials, always insist professional, Innovation, Efficiency, Cooperation and offer high quality and high performance cutting tools.
If you have any problems, please feel free to contact with us info@halnntools.com,skype:info@halnntools.com.