With the progress of Rolling steel technology, the material quality of the Roll has rapidly developed, making the
Roll wear resistance, fatigue strength, resistance to thermal cracking, etc. continue to increase, making it difficult
In order to meet the needs of modern Rolling, the material of the Rolls develops towards the tool material:
High-chromium iron, high-nickel-chromium alloy, die steel, high-speed steel, tungsten carbide, etc., cutting difficult.
PCBN inserts and PCD inserts solved this problem.