2025 KLINGSPOR BIG Catalog - Catalog - Page 178
DRESSING/TRUING CONVOLUTE WHEELS
M21 Smooth Specular: Belt polished to 320 grit then buffed
with Tripoli buffing compound
M22 Specular
Buffing without prior belt polishing
Truing: To make level, balanced or concentric; bring or restore to a
desired mechanical accuracy or form. To prevent vibration at high
speeds, a diamond or other dressing tool is used to ensure that a
non-woven grinding wheel is round and concentric.
Directional Textured:
M31 Fine Satin
Satin
Satin
M34 Hand Rubbed
Belt polished to 320 then 400 grit M32 Medium
Belts polished to 180 to 320 grit M33 Coarse
Belt polished to 80 or 100 grit
Rubbed with medium grades of steel
wool or non-woven hand pad material
Both the above activities are limited to convolute wheels 6" in diameter and larger.
Truing or Dressing for non-woven/convolute wheels can be accomplished by either Powered Diamond Saw Blades, Coated Abrasive
Materials or the use of Custom Metal Tools. The best two options of
these for end users will be either the Coated Abrasive Material or the
Custom Metal Tool.
Standard Finishes on Brass and Bronze
M21 Smooth Specular Polishing to 320 grit then cut
buffing with AO
M33 Specular
M21 plush light buffing
M31 Fine Satin
Polishing with AO or SC to 180 then 240
M32 Medium Satin
Polishing with AO or SC from
120 then 180
M33 Coarse Satin
Polishing with AO or SC from 80 to 120
M34 Hand Rubbed
Rubbed with medium or coarse
non-woven pad
M35 Brushed
Wire brush or polish with coarse
grit abrasive
M36 Uniform
Polish with 60 or 80 AO or SC
The Coated Abrasive Materials option requires inexpensive material
with a little technique. A piece of very coarse (24 or 36 grit) coated
abrasive material and a heavy solid piece of metal is used. The
coated abrasive material is used because of the many cutting points
it provides for truing. The heavy piece of metal maintains contact
between the non-woven wheel and the coated abrasive material.
If a heavy piece of metal is not used, the coated abrasive material
will bounce on and off the non-woven wheel and the wheel will not
be properly trued. This method works best for the harder density
non-woven wheels such as the convolute 9SF for deburring.
BONDED WHEEL SELECTION GUIDE
GRAIN
• A – Aluminum Oxide: for general purpose use on all metals
• C – Silicon Carbide: for use on stone and masonry applications
• Z – Alumina Zirconia: for use in aggressive cutting applications
GRIT
•
•
•
•
•
•
Dressing: Removal of undesirable materials from "loaded" non-woven grinding wheels to expose unused abrasive points.
24 – Coarse: for fast cutting and maximum wheel life
30 – Medium/Coarse: for fast cutting and long wheel life
36 – Medium/Coarse: excellent for general purpose cutting
46 – Fine/Medium: for a smoother finish and reduced burr
60 – Fine: for a burr-free cut
80 – Fine: for a burr-free cut
The Custom Metal Tool option is the most unique method of all because some operators use many different variations of "truing tools"
ranging from a bottle cap to a very elaborate two-handed rake-type
tooth tool. The tools are usually very thin to maintain a sharp edge,
short, and have a right angle to reduce the change of snagging the
tool with the wheel. This method is best suited for the softer non-woven wheels. The advantage of this method is the tool’s ability to
quickly cut into the wheel by actually cutting the non-woven fibers.
Profiling, which is often inaccurately referred to as "dressing", is basically putting a mirror image of the one to be sanded into the face of
the sanding wheel. This procedure is not recommended for convolute wheels. There are specialty non-woven wheels made
by companies like Bardo-Flex which are specifically in the weave
to allow profiling.
GRADE
• TZ – Hard: for maximum wheel life
• R/S – Medium/Hard: for improved stock removal and life
• M/N – Soft: for maximum cut rate
Visit us online: www.klingspor.com
177
REFERENCE
Reference
STANDARD ALUMINUM FINISHES
