In cutting wheel when it has the following characteristics

Wheel of traditional processing methods What are the limitations?
Wheel after roasting and curing processes, its size, shape and appearance of each respective position accuracy, can not reach the use of the technical requirements necessary after turning, research rubbing and grinding. The unit also due to the use of wheel and wheel consumption need not meet the requirements of the specification and application, it must be turning. As objective technical reasons, mostly outside the Diamond tools  traditional international knife bowl for turning. In the process of working with it, the wheel at high speed (300 ~ 400m/min) No. 45 driven by hardened tool steel thin-walled bowl rotation, and stops moving knife, remove the wheel excess amount. Since the processing bowl and the cutter wheel rotates at high speed in the formation of dust and noise processing large cutting depth and feed rate is very small, so the processing efficiency is low and synthesis of the high resolution, the operator break strength. Large particles such as the use of diamond tools, expensive, and because of the low bending strength of 4 inch saw blades  the diamond cutting easily damaged, it is formed when the cutting wheel cutting depth and feed rate is very small, the general only used for finishing.
(2) using the tool cutting wheel PDC What are the characteristics?
Polycrystalline Diamond Compact (PDC), was developed in the 1970s into a superhard cutting tool information. It is made with the tool being used to cut a variety of non-ferrous metals and non-metals, and can be used to cut wheel. In cutting wheel when it has the following characteristics:
(A) has a high hardness and wear resistance: the hardness of polycrystalline diamond layer common in HV7000 ~ 9000, and the differences in each direction, is a common abrasive wheel hardness 2 to 4 times. Cutting wheel with it a high degree of durability, the volume wear ratio wet saw blades  up to 1/13 million. Quality wear ratio up to 1/300 000, thereby reducing the consumption of capital.