|Title||Grinding wheel particle size selection|
The particle size of the grinding wheel is to crush, roll and process the smelted crystal block, and then screen the fine powder of different sizes of particles, wherein the particle size is represented by a number, which is called particle size. The particle size is generally expressed by the number of the sieve, that is, the sieve hole per inch length, and the larger the number, the smaller the abrasive grain.
thin flat cutting discGranular choice
The wheel size is a measure of the size of the abrasive particles. The choice of grinding wheel size directly affects the surface roughness and grinding efficiency of the workpiece. In general, the grinding efficiency is high when grinding with a coarse-grained grinding wheel, but the surface roughness of the workpiece is poor. When grinding with a fine-grained grinding wheel, the surface roughness of the workpiece is good, but the grinding efficiency is low. In short, under the premise of meeting the surface roughness requirements of the workpiece, the abrasive tools with coarser grain size should be selected as much as possible to ensure high grinding efficiency.
Usually the choice of grinding wheel size is determined according to the grinding needs. usually:
Rough grinding: steel ingots, forged castings, leather wood, cut steel billets, etc., for 12#. 30#
Semi-finishing: used for rough grinding of plane, outer circle, inner circle, centerless grinding, etc., applicable to 36#
General fine grinding: used for outer circle, inner circle, plane, centerless, tool grinding machine and various special grinding machines, etc., applicable to 60#
For fine grinding, honing, threading, etc., for 120# one W20
Super fine grinding: fine grinding, super fine grinding, mirror grinding, etc., for W20
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