Carbide "R type" for corrosion resistance and wear resistance
"R type" is the materials which strengthened the binder phase.
The matrix hardness becomes higher by strengthening the cobalt phase, and wear resistance and particle holding force are also improved.
Furthermore, corrosion resistance and heat resistance are improved in comparison with general carbide.
And less the generation of electric corrosion and the affected layer with the underwater wire cut.
It will lead to reducing the grinding allowance of a later process.
Since "R type" can be suppressed for chemical corrosion due to corrosive solution, less rough surface due to the elution of cobalt and it is superior materials in the mold releasability where seizure is hard to occur.