What kind of a good grinding material

Solve difficult grinding material grinding through: a reasonable choice of grinding wheel, grinding dosage, grinding fluid and grinding process method.A ) a reasonable choice of grinding wheel grinding wheel features a reasonable choice is to solve the difficult material grinding mill is one important way ( 1 ) Select the appropriate abrasive . Grinding hard grind material often used corundum (wA), zirconium corundum (zA), monocrystalline corundum (SA), microcrystalline corundum (MA), green  tct circular saw blade silicon carbide (GC) and cubic boron nitride abrasive . Such as the use of zirconium corundum grinding 1Crl8Ni9Ti such as stainless steel , not only high grinding efficiency , but also easy to produce burns ; using monocrystalline corundum grinding ordinary high-speed steel and high vanadium high speed steel , stainless steel and GH2132, GH901 superalloy such as high hardness, toughness of material effect has been achieved ; green silicon carbide grinding wheel with titanium, microcrystalline corundum grinding ductile iron which was also very effective . Sometimes in order to solve some hard material grinding mill , using several different proportions mixing abrasive wheel , the grinding effect than a single abrasive grinding wheels are good. As with corundum 80% + 20% of the mixed green silicon carbide abrasive grinding wheel nickel-base superalloy , using single-crystal mixture of corundum and microcrystalline corundum abrasive wheel, grinding aluminum high-speed steel , can solve the problem of burns .
( 2 ) use of two different particle size abrasive . Chosen by a certain percentage is made of two different particle size abrasive wheel , grinding wheels help to improve durability.
( 3 ) the appropriate choice of wheel hardness and texture . Mill grinding hard materials should be selected hardness is low, loose tissue of the wheel. This is because the low hardness of grinding wheels, abrasive grinding process in easy to fall off , the wheel surface to obtain a new sharp cutting edges , thus grinding and grinding , lower temperature , easy to cause T surface burns, improve wear debris the grinding wheel working surface tackiness . In order to solve superalloy GH90l, GH2132 other grinding of the problem, the use of large pores wheel loose tissue , a significant good results. But wheel loose tissue , but also by grinding plus T precision requirement. Because the wheel loose tissue , wheel hardness is too soft for maintaining precision has a downside , it must be moderate.
2 ) a reasonable choice of grinding parameters
( 1) The wheel speed selection . In the  concrete saws general case , the grinding wheel speed is difficult to grind the material should be less than 35m / s. However, some high-speed grinding hard grind materials , but also have a good effect . Such as the selection wheel speed u. = 55m / s Grinding ] Crl8Ni9Ti, its production efficiency and durability than the general grinding wheel wheel speed increased by 1 . Using υc = 60m / s , high-temperature alloy GH2132 grinding , the grinding efficiency can also l times . However, the adoption of green silicon carbide grinding wheel titanium alloy , you have to use υc = 17m / s lower wheel speed , so get up to 25 of the grinding ratio .
( 2 ) grinding depth . As hard material grinding mill poor , in normal circumstances , you should use a small grinding depth . Such as the use of green silicon carbide grinding wheel TC4 titanium alloy , with a smaller grinding depth , you can get a higher grinding ratio and  concrete vibrator a larger amount of metal removal . But in a υc = 50m / s vertical grinding ductile iron , they should adopt a larger 0.1mm grinding depth , when grinding depth αP (0.0l-0.02) mm , the wheel but easily blocked, accelerated wheel blunt technology .
 ( 3 ) Workpiece speed. The higher the speed of the workpiece should be used to reduce or prevent the workpiece burn . However, using deep creep feed grinding , in order to avoid burns, should opt for a lower workpiece speed.