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Selection Grit of grinding wheel

Time:2011-02-18 14:52:25     Views:     Keywords:Grindning wheel for cutter grinder, Grinding wheel for tool grinder, Cutter grinder accessory,Tool grinder accessory,diamond grinding wheel, WA grinding wheel,CBN grinding wheel  

Selection Grit of grinding wheel

Summary:Coarse granule of grinding materials bring better efficiency, while the surface of workpiece will be rough.

Selection of Grit:

Coarse granule of grinding materials bring better efficiency, while the surface of workpiece will be rough.

In the condition of satisfy the coarseness of surface, it had better to choose coarse granularity.

It is better for Resin binder grinding tools to choose 70/80(80#)and following RVD(JR1) Diamond.

It is better for Metal(bronze) binder grinding tools to choose MBD(JR2) Diamond.

Granularity number & Basal granule size of Synthetic Diamond or CBN will be seen in the former sheet(Page.2).

CBN products process ordinary steels, carbon steel and varieties of alloyed steel precede Diamond.

The relationship between Diamond granularity and process coarse granularity

Granularity number Reachable surface coarseness
Original criterion of Industry Department Criterion of P.R.C. Resin Binder Metal Binder
80#~100# 70/80~100/120 —— △6~△8
100#~150# 100/120~140/170 △8~△9 △7~△9
180#~240# 140/170~230/270 △9~△10 △8~△9
280#~W20 230/270~12-22 △10~△11 ——
W14~W5 8-12~4-8 △11~△12 ——
W5~W0.5 4-8~0-0.5 —— ——

The relationship between grinding procedure and granularity

Grinding Procedure Granularity selected
Original criterion of Industry Department Criterion of P.R.C.
Coarseness 80#~120# 70/80~120/140
Coarseness&Precision 120#~180# 120/140~200/230
Precision 180#~W40 200/230~36-54
Grinding&Polishing W40~W1 36-54~0.5-1

 

Nancy lee


 



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