Final tech forum abrasives

Welcome to the World of
Abrasives

© 3M 2007. All Rights Reserved.

ASD = Abrasive Systems division

3M offers a wide range of abrasive products: Belts, discs, sheets, rolls, wheels
and specialty items in a limitless combination of minerals, backings and bonds
creating high quality solutions from a name you can trust.
 New technologies- 3M consistently invests in research and development creating
new technologies that improve efficiency and performance.
 High performance products- 3M products perform well on different metals and
provide a fine and consistent finish.
 Long lasting- 3M advanced technologies enable significantly longer lasting products.
 Comfort- 3M products were designed uniquely to be as comfortable as possible-
lower vibration, noise levels, heat build up etc.
 Cost reduction- using 3M products increases feed rates, reduces labor costs and
decreases down time, all causing long term savings.
 Professionalism- you can rest assure that our products will not only do a better job
but that our product range is backed by support materials and specialist advise.


How we utilize the IC
 Internal testing before showing to the customers
 Hands on training for Distributor Sales Reps.
 Testing competitor product performance
 Experiments with various products to get to same finish
 Get customers to know more .
 Get key decision makers and use top down approach
 Win Customers loyality
 Conduct Seminars


Introduction to Abrasives
 An abrasive is a material, often a mineral, that is used to shape or finish a
workpiece through rubbing which leads to part of the workpiece being worn
away

 Abrasives generally rely upon a difference in hardness between the
abrasive and the material being worked upon, the abrasive being the
harder of the two substances.

 The abrasive and the material to be worked are brought into contact while
in relative motion to each other. Force applied through the grains causes
fragments of the worked material to break away while simultaneously
smoothing the abrasive grain and/or causing the grain to work loose from
the rest of the abrasive.


Abrasive Machining Process


Factors affecting Workpiece Abrasion
 Difference in hardness between the two substances: a much harder
abrasive will cut faster and deeper
 Grain size (grit size): larger grains will cut faster as they also cut deeper
 Adhesion between grains, between grains and backing, between grains
and matrix: determines how quickly grains are lost from the abrasive and
how soon fresh grains, if present, are exposed
 Contact force: more force will cause faster abrasion
 Loading: worn abrasive and cast off work material tends to fill spaces
between abrasive grains so reducing cutting efficiency while increasing
friction
 Use of lubricant/coolant/metalworking fluid: Can carry away swarf
(preventing loading), transport heat (which may affect the physical
properties of the workpiece or the abrasive), decrease friction (with the
substrate or matrix), suspend worn work material and abrasives allowing
for a finer finish.


Mineral Technology

80
Knoop hardness [GPa]

60

40

20

0

al O C Z
A/
3
Si on on N d
et Al 2 itr itr CB m
on
M b b a
d
ar RC Cu Cu Di
H H
65


Mineral Technology

6

5
fracture toughness

4

3

2

1

0

al O 3 C Z
et Al 2 Si A/ on on N
on
d
itr itr CB
M b b am
d
ar RC Cu Cu Di
H H
65


Abrasive Minerals


Grit and Grit Size


Abrasive Selection Factors
 Application determines use of appropriate abrasive
 Excessively hard abrasive wastes money by wearing
it down when a cheaper, less hard abrasive would
suffice.
 Too soft, abrasion does not take place in a timely
fashion, effectively wasting the abrasive as well as
any accruing costs associated with loss of time.
 Different chemical or structural modifications may be
made to alter the cutting properties of the abrasive.


Key Industrial Segments –. Gulf

 Metal Working
 Architectural/decorative
 Mechanical Construction/fabrication Oil and Gas
 Electromechanical Contracting
 Truck Body Building
 Ship Construction and Repairs
 Kitchen Equipments both commercial and residential
 Wood Working
 Interiors and Fitments
 Cabinet and Furniture manufacturing
 Machine Shops
 Glass and Ceramics


Non Industrial Segments –. Gulf

 Automotive After Market
 Denting Section
 Painting Section
 Marine and Aerospace
 Maintenance
 Manufacturing
 Dental Practice
 Consumer and Home Imrpovement


Applications of Abrasives

 Hand application- Sanding sheets ,Rubbing
Compounds, Hand pads
 Machine Applications
 Portable Hand Held Power Tools
 Back Stand Grinders
 Stroke sanders
 Bench Grinders
 Large CNC Machines


Applications of Abrasive Machining


Abrasive Grinding


Chip Formation


Problems Associated with Usage

 Loud Noise
 Sparks
 Dust Generation
 Excessive Heat

 Vibrations


3M abrasive solutions:

3M products provide solutions for a wide range of metalworking
applications:
 Deburring- solutions for burrs on precision parts where
tolerances are critical, to coarse chamfering of rough edges.
Grinding and stock removal- solutions for weld preparation,
weld removal, deflashing, edge grinding of flame cut parts,
dimensioning.
 Refining and blending- refining defects and handling
marks, blending scratches from previous processes.
 Finishing- effective solutions for finishing: matching and
blending surface finishes, final blending and paint preparation.
 Cleaning- fast, efficient cleaning solution to remove paint,
corrosion, sealants, adhesives or coating, without damaging the
underlying surface.


Abrasive Forms


Bonded Abrasives

 Flexible Grinding Discs
 Cubitron Ceramic Mineral
 Low Vibrations
 High Material removal
 Long Life

New 3M Process Implemented

 Application Description:
 Grinding while fabricating Geared
Side Column
 This column is used to vertically lift
the Rig platform


Excessive Vibration can lead to Permanent Disability

 Control of Vibration at Work Regulations 2005
 The Control of Vibration at Work Regulations 2005
(the Vibration Regulations), came into force on 6 July
2005 and aim to protect workers from risks to health
from vibration.
 The regulations introduce action and limit values for
hand-arm and whole-body vibration.


Coated Abrasives

 Abrasive Belts
 Abrasive Rolls
 Sanding Disc
 Sheet Products

Surface Conditioning Products

 Roloc Discs
 Deburring wheels
 Unitized Wheels
 Bristle discs

Surface Conditioning Products


Abrasives Conversions


3M abrasive products:

3M variety of products:
Discs
 Roloc discs
 Wheels
 Bristle abrasives
 Belts
 Sheets and Rolls
 Others


Sheets and Rolls

 Paper sheets and rolls
 Cloth sheets and rolls
 Scotch-Brite sheets and rolls


Discs

 Grinding discs
 Fiber discs
 Flap discs
 Hookit & Stikit discs
 Scotch-Brite discs
 Micro-finishing discs


Belts

 Coated abrasive belts
 Scotch-Brite belts


Wheels

 Deburring and Finishing wheels
 Unitized wheels
 Flap wheels


Technologies

 Microreplication- Trizact belts and discs
 Cubitron- Ceramic minerals belts and discs
 Non woven Products- Belts ,Hand pads,Discs
 Moulded Technology-Bristle discs
 Film Backings-Microfinishing and lapping films

Special 3M abrasive technologies:

 Scotch BriteTM- A tough, non woven nylon web impregnated with resin
and mineral creating uniform consistent results with no undercutting.
 CubitronTM- A ceramic aluminum oxide mineral designed by 3M using
a patented sol gel process to enhance fracture toughness and hardness of
the grain.
 TrizactTM- A unique 3D structure of multiple layers of abrasives. Fresh
mineral is delivered constantly and evenly to the work surface so cutting
and consistency remains stable throughout the life of the abrasive.
 Green CorpsTM- Bonded abrasive discs formulated from Cubitron™
mineral enabling impressive performance, long life, fast, high quality
grinding and cutting.
 BristleTM- Plastic with Cubitron™ mineral provides flexibility that
enables superior cleaning and finishing to a wide variety of surface areas,
without damaging the work piece. Eliminates flying wires common with
traditional wire brushes


Wow!!!


Fiber Disc 982C


Bristle abrasives

 Bristle brushes
 Bristle discs


Roloc Discs = quick release system

 Fiber discs
 Cloth discs
 Scotch-Brite discs
 Bristle discs
 Clean & strip discs


Large Range Product Offering

 For every segment, we offer some or the other abrasive product

 Be the product as
 Bonded Abrasives
 Coated Abrasives
 Surface Conditioning ( Scotch Brite)
 Superabrasives (Using Diamond)


Summary

 Minerals that cut faster
 Last Longer
 Produce lowest Vibrations
 Give the best finish
 Produce Least amount of Dust
 Environment Friendly


Contact Details

Prashant Sadalgekar
Technical Services- Abrasives Systems Division
3M Gulf Limited –Innovation Centre
Dubai Internet City ,Building No 10 ,2nd Floor
Dubai, U.A.E
P.O. Box 20191
psadalgekar@mmm.com
Mobile number +971506558954


Thank You !!!
Win The Hearts of the Customers and Satisfy
their Needs


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