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FLEXBRITE
NON-WOVEN
ABRASIVES
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CONVOLUTE WHEELS
Convolute Wheels are manufactured by wrapping Flexovit Flexbrite non-woven material impregnated with
abrasive grain and resin around a centre core. Convolute Wheels offer a wide range of utility from heavy burr
removal to cleaning rust and oxide through to satin finishing. These wheels are available in various diameters,
grades and densities.
GETTING THE BEST FROM YOUR FLEXBRITE CONVOLUTE WHEELS
Pressure
Light to medium pressure is recommended for most operations.
Avoid excessive pressure which may result in wheel deformation
and damage the work surface.
Feed Speed
Feed speeds directly affect the number of pieces completed over a given period
of time. Slow feed speed reduces the number of workpieces completed, while
producing a shorter scratch pattern. Slow feed speed allows for longer dwell
time and permits more work to be done on each piece. Conversely, a fast feed
speed increases the number of workpieces completed, while producing
a longer scratch pattern.
Oscillation
Oscillation may be used to break up scratch lines and produce a more uniform
finish. Additionally, an increase in cut may be experienced. A general starting
point for oscillation is 3/8" amplitude at 200 cycles per minute.
Lubricants
Lubricants, such as water, water soluble oil, and straight oil, will decrease
the heat generated while running, improve the lustre, and improve the surface
finish. The higher the viscosity of the lubricant, the lower the surface finish
(RMS value) produced.
TROUBLESHOOTING
Slow cut rate
Increase density
Decrease wheel speed
Use coarser grit
Low conformability
Decrease density
Reduce pressure
Poor form holding
Increase density
Decrease wheel speed
Reduce pressure
Poor finish
Increase density
Increase oscillation
Use of lubricant
Water – fine
Water soluble – finer
Oil – finest
Increase wheel speed
UNDERSTANDING THE PRODUCT
Bond System Density
Abrasive Types
Grit size
1 = Series 1000 bond
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A = Aluminium Oxide
M = Medium
2 = Series 2000 bond
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S = Silicon Carbide
F = Fine
3 = Series 4000 bond
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VF = Very Fine
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