How to choose CBN/diamond wheels when grinding steel and carbide at the same time

1, Use the CBN wheel.
Advantage：Both materials can be processed at the same time without any sequelae.
Disadvantage: Will spend more time when grinidng the carbide part.  Becasue the CBN not strong than diamond.



2, Use the diamond wheel.
Advantage：Grinding efficiency is high and economical.
Disadvantage: Strong cooling is required, otherwise diamond will react with iron and cause it to carbonize and lose its function.



3,Use the diamond wheel(Dry grinding formula).
Advantage：Grinding efficiency is high and economical. Need cooling but not forcefully.
Disadvantage: There is still some risk of carbonization.





4, Use hybrid abrasive wheel(Diamond and CBN together)
Advantage：Both materials can be processed at the same time efficiently and without the risk of carbonization.
Disadvantage:Higher price.