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Centerless
Grinding Wheels |
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Back
to Kinik Products
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| Centerless
Grinding |
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In
centerless grinding, the work is supported on a work rest or
work "blade" between the regulating or
"feed" wheel and I the grinding wheel. The feed
wheel controls and drives the work; the grinding wheel,
running at normal speed, does the grinding. |
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The
work is not necessarily perfectly cylindrical but may be tapered
or otherwise formed. Frequently, several diameters are ground at
once by step dressing the wheel or by spacing two or more wheels
on the same wheel spindle (in-feed grinding). Most jobs, however
are "through feed" of straight pieces where the work
enters on one side of the machine and exits on the other.
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 There
are three types of centerless grinding method:
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| 1.
Through-feed grinding. |
2.
In-feed grinding |
3.
End-feed grinding |
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Recommendations
(Grinding Wheels): |
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Application
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Specification
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Steel
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Soft
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HRc
< 25
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FA60MV
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Hard
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HRc
> 25
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38A60LV
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Alloy
Steel
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Soft
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HRc
< 55
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FA60LV
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Hard
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HRc
> 55
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WA60KV
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Tool
Steel High Speed
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HRc
< 60
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FA60KV
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HRc
> 60
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WA60KV
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Stainless
Steel
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400
series
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WA60KV
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300
series
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38A54LV
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Cast
Iron
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Grey
Cast Iron
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C60LV
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Special
Cast Iron
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GC60LV
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Malleable
Cast Iron
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FA60MV
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Non-ferrous
Metal
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Brass
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C60KV
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Bronze
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FA60MV
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Aluminum
Alloy
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C60KV
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Magnetic
Steel Casting
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WA60KV
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Bolt
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FA60MV
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Bushing
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FA60KV
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Bearing
Roller
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Roughing
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38A60LV
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Finishing
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FA100LV
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Ring
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38A80LV
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Valve
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Automotive
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38A60MV
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Tappet
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38A60MV
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Piston
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Aluminum
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C46KV
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Cast
Iron
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C46LV
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Piston
Pin
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Roughing
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38A46L
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Finishing
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38A80LV
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Drill
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Soft
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FA60MV
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Hard
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WA80KV
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Alnico
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FA60LV
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32A60PB
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Bars
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Æ
19 & Small
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FA54RB
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Æ
20 - Æ
65
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FA54QB
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Over
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65
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FA60PB
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Tubing
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Steel
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FA60MV
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Chrome
nickel
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FA60MV
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Aluminum
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AC46KV
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Tungsten
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Rolled
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SA46NV
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Sintered
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C60KV
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Centerless
Feed Wheels |
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Centerless
feed wheels control of traverse of the work piece. Standard Specification: A120T.R.
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Specification
Selection Guide
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| A150
T.R. |
(Part
diameter less than Ø6mm,
or parts with broken surfaces which tend to the speed of revolution
and rate dress the wheel)
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| A120
T.T. |
(Part
diameter Ø6mm and larger with unbroken surfaces)
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| A80
R.R. |
(Heavy
stock removal or abusive operations such as bar and tube grinding)
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