FC250 mainly is produced with bulk qty, and the profit is low, so many manufacturers would like to find some cutting tools materials which can improve the efficiency and lower the costs. Only confirm the product quality, and improve the efficiency and lower the costs, the manufacturers can live long.
Halnn Superhard, a professional manufacturer of cbn inserts, have much experience on machining cast iron materials. The following is some advice:
(1) If the cast iron product qty is small, and just produce occasionally, you can choose carbide insert, such as YG series. You just need to control the feeds and the rotating speed in the process, and the whole costs will be low.
(2) If the cast iron product belong to bulk qty, and long term production, we recommend coating carbide insert or cbn insert. If you don’t consider the whole profit, you can choose carbide insert, which is much cheap. If the allowance is large, and the efficiency must be considered, you had better choose cbn inserts, which can be used for high speed cutting cast iron.
We have researched new cbn grades BNK30, which can replace the previous cbn grades BN-S30,BN-S300 (which belong to solid cbn insert) and BN-K20 (which belong to brazed pcbn insert). Nowadays, most manufacturers which used CNC Lathe, will choose cbn inserts. Even the tool cost is much higher than coating insert, the costs on each component will be lower than coating carbide insert.
The following is the characteristics of BNK30 CBN Inserts:
(1) Suitable Materials Gray cast iron, iron based alloy
(2) Machining Type: Semi-Finishing and Finishing, Continuous
(3) Suitable component: Brake Disc, Brake Drum, Cast Iron Engine or Gearbox,ect.
(4) Cutting Depth:≤1.5mm
One of the application case with BNK30 solid cbn insert machining cast iron
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BNK30 CBN machining gray cast iron |
 |
Component:Brake drum
Material: FC250,HB170-210
Selected Insert：BNK30 WNGA080408-6S
Cutting Condition：ap=0.5mm,Fr=0.2mm/r,Vc=650m/min |
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Insert material |
Lifetime/blade |
Roughness |
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Halnn BNK30 |
120 pcs/blade |
Ra1.6 |
|
Other PCBN |
70 pcs/blade |
Ra2.0 |
If you have any problems, please feel free to contact with us info@halnntools.com.