Zhuzhou Yuanyi New Materials Co., Ltd_ Professional diamond manufacturer_ Heartless grinding_ Ceramic diamond

YuanYi Comparison Table of Particle Size and Finish
Granularity	Ra	Surface shape and characteristics of particle size			Example
80#	1.6	Flat surface	Unable to see the direction of machining marks clearly		Cold drawn precision turning, fine grain, coarse grain, rough grinding, scraping, rough drawing, processing, etc
120#	1.2
150#	0.8	Smooth surface	Distinguishable processing trace direction
200#	0.4				Grind,Fine turning coarse lines of diamond turning tools, Cold drawing broach machining
240#	0.35		Micro discrimination of machining trace direction
320#	0.3
400#	0.2		Indistinguishable processing trace direction
600#	0.1	Smokest surface	Dark glossy surface
800#	0.05		Bright glossy surface
1000#	0.03				Fine grinding, Grind,Burnishing ,Grinding in front of ultra precision grinding mirror
1500#	0.02	Black Brightness	Mirror gloss
Grinding process		Semi precision grinding		Fine grinding		Grinding and polishing
60mesh-120mesh		150mesh-180mesh		200mesh-320mesh		400mesh-1200mesh
Grinding form		Feed method			Feed speed
Internal grinding		Longitudinal feed			0.5-1m\min
Flat grinding					10-15\min
Flat grinding		Infeed			0.5-1.5mm\trip
Note: During blade grinding, the longitudinal feed is manual and is generally controlled by the operator according to the processing situation. The length should be within the range of 1-2 meters/minute, and the feed speed for high smoothness grinding should be slow. The best effect is to grind the hardness>HRC80