As a grinding tool often used in production work, grinding wheel plays a very important role in improving labor efficiency. The choice of grinding wheel has a direct impact on machining accuracy, surface quality, loss cost, production efficiency and so on. There are many shapes of the grinding wheel, and its shape should be determined according to the conditions of the grinding machine and the shape of the workpiece;
flat series grinding wheel inner circle, outer circle, surface, centerless, tool and thread grinding machine can be used; The diameter ranges from 3 to 1600mn;
Usually the outer diameter of the flat grinding wheel is within 150mm, and the thickness is 10~100mn! It is used more in horizontal axis surface grinding machine;
flat grinding wheel outer diameter 250~500mm thickness 32~50mnt, used in medium size cylindrical grinding machine;
Parallel grinding wheels with outer diameter of 600~900mm and thickness of 63~75mn are commonly used for grinding rolls or other cylindrical grinding machines;
Outer diameter 750~1100mm thickness 28~100mm for grinding crankshaft;
Outer diameter 1200~1600mm thickness 80~120mm, mainly used for grinding large crankshaft;
Grinding wheels with outer diameter of 350~750mm and thickness of 125~550mm, mostly used for the grinding wheels of centerless grinding machines. Used to grind the outer circle of bearing inner and outer rings, cones, cylindrical rollers, ingot bars of textile machines, piston pins on engines and the outer circle of mass-produced workpieces;
Outer diameter 250~500mm thickness 8~63mm: spoon parallel grinding wheel · After the edge is trimmed to a sharp Angle · Used in thread grinding machine to grind single or multi-line external thread workpiece;
A parallel grinding wheel with an outer diameter of 80~250mm and a thickness of 6~10mm is used to grind the internal thread workpiece after being trimmed to a sharp Angle;
Parallel grinding wheels with an outer diameter of 150~600mm and a thickness of 13~75mm are used on bench, floor or hanging grinding machines.
A parallel grinding wheel with an outer diameter of 50~250mm and a thickness of 10~25mm is used on a portable grinder.
The curved wheel is used to grind the groove of the bearing
Of course, to choose the grinding wheel suitable for the current work, there are many factors to consider:
Material to grind. This determines the type of abrasive required for the grinding wheel. For example, to grind steel or alloy steel, alumina or zirconia alumina should be used to grind. Grinding cast iron, non-ferrous metals and non-metallic materials, will choose silicon carbide abrasive.
Hard, fragile materials usually require finer grained, soft grinding wheels. Because the hard material will resist the cutting of abrasive particles and make it easy to dull. Therefore, fine granularity with softer hardness can make the abrasive particles quickly shed when blunted, immediately exposing sharp, sharp new abrasive particles. In contrast, for soft, easy to stretch and easy to cut materials, coarse-grained and hard grinding wheels should be selected.
Material removal: Coarse-grained abrasives can quickly cut the volume of the workpiece because they have greater penetration and greater cutting force. But if it is difficult to cut into the material, the grinding wheel size is smaller, the cutting efficiency will be better, because there are more sharp points to cut. Ceramic bonded grinding wheel, high cutting efficiency. However, if the expected removal amount is small or the surface roughness requirements are high, the grinding wheel with resin, rubber or shellac adhesive should be selected.
Grinding wheel speed: Ceramic bonded grinding wheels are used at speeds below 6,500ft/min. (33m/s) too high speed, the ceramic bond will break; The grinding wheel with organic bond is used at a speed of about 6500~9500ft/min per minute. (33~48m/s) If you want to work at higher speeds, you need a specially prepared high-speed grinding wheel to perform high-speed grinding.
If you need various shapes of grinding wheels, you can visit the following website of our company
http://www.xfabrasive.com/vitrified-grinding-wheel/flat-vitrified-grinding-wheel.html
