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1. Resin bond diamond grinding wheel test:
Grinding wheel specifications: 12A2/45° 125×32×32×10×3 W20 100B
Grinding object: sharpening PCD tool Grinding part: PCD knife two blades, blade width is 4.6mm, PCD layer thickness is 0.8mm, YG16 layer thickness is 1.2cm
Grinding allowance: 0.10 ~ 0.05mm
Grinding wheel speed: 1800r/min, lateral reciprocating 30 times/min, feeding amount is 0.05mm/min
Grinding result: PCD cutter 32 / h
2. Ceramic bond diamond grinding wheel test
Grinding wheel specifications: 12A2/45° 125×32×32×10×3 W20 100M
Grinding object: sharpening PCD tool Grinding part: PCD knife two blades, blade width is 4.6mm, PCD layer thickness is 0.8mm, YG16 layer thickness is 1.2cm
Grinding allowance: 0.10 ~ 0.05mm
Grinding wheel speed: 1800r/min, lateral reciprocating 30 times/min, feeding amount is 0.05mm/min
Grinding result: PCD cutter 46 / h
3 metal bond diamond grinding wheel test
Grinding wheel specifications: 12A2/45° 125×32×32×10×3 W20 100V
Grinding object: sharpening PCD tool Grinding part: PCD knife two blades, blade width is 4.6mm, PCD layer thickness is 0.8mm, YG16 layer thickness is 1.2cm
Grinding allowance: 0.10 ~ 0.05mm
Grinding wheel speed: 1800r/min, lateral reciprocating 30 times/min, feeding amount is 0.05mm/min
Grinding result: PCD cutter 108 / h
The result of this test was tested by some seniors in 2005 to let more users know the performance of ceramic bond diamond grinding wheels in processing PCD tools. At that time, the domestic ceramic bond diamond grinding wheel just entered the research and development stage, faced with quite a lot of technical difficulties. Therefore, the ceramic bond diamond grinding wheel had not entered the stage of mass production at that time, and the specifications and models were relatively monotonous. The engineers of Henan Shengchuang Superhard Materials Co., Ltd. took the lead in guiding customers to use diamond bond grinding wheels to grind diamonds. They were favored by diamond processing manufacturers. Then engineers set up their own factories in Jiaozuo, Henan Province to start mass production of ceramic bond diamond grinding wheels. Following the development of the domestic aviation manufacturing industry, PCD tools and PCBN tools have been widely used in the machining industry. In the grinding of PCD tools, because the resin binder is soft, it is easy to be deformed during grinding. The resin bond diamond grinding wheel can not effectively grind the PCD tool; the metal bond is sharp because the bonding ability to the abrasive grains is too strong. Poor performance, low grinding efficiency, and metal bond grinding wheel will cause the most serious damage to the edge of PCD tool; ceramic bond diamond wheel has more air holes, which is good for chip removal and heat dissipation during grinding, not easy to block, not easy Burn the workpiece. From the test results, it can be seen that under the same test conditions, the grinding efficiency of the ceramic bond diamond grinding wheel is much higher than that of the resin bond and the metal bond diamond wheel in the same grinding time.
Early ceramic bond diamond wheels for grinding PCD tools did not have uniform specifications and models. Around 2008, the domestic manufacturers of ceramic bond diamond grinding wheels for grinding PCD tools began to appear in China. The pioneers of a number of renewed resin bond diamond grinding wheels have also been continually exploring the ceramic bond diamond grinding wheel to process PCD tools. 6A2 has gradually become a regular model of grinding PCD tool grinding wheels, the diameter is 150, 125, 100 conventional specifications. At present, many domestic users call the ceramic bond diamond grinding wheel for PCD to be 6A2 ceramic diamond grinding wheel, cup type ceramic diamond grinding wheel and grinding PCD/PCBN tool diamond grinding wheel. In March 2010, Henan Shengchuang Superhard Materials Co., Ltd. officially changed its name to ceramic diamond knife grinding wheel.
Comparison of test results of grinding wheel PCD cutter