All Round Performance

Transcription

AbrAsives
All Round Performance
The complete Hermes program
for external cylindrical grinding
Hermes – a competent "grinding"
Contents
At Hermes, Tradition has a future
Hermes – a competent "grinding"
partner all over the world
Page 2
H
Powerful abrasives specially
designed for external cylindrical
grinding
Page 4
External cylindrical grinding –
tubes, rods and rollers
Pure performance –
Hermes initial grinding belts
Page 6
ermes Schleifmittel is a Hamburg company in the true tradition, with roots going back to
1927. The company is not only one of the world’s key manufacturers of coated abrasives –
since 1993, it has also occupied a leading market position in the production of precision
bonded abrasives.
Hermes owes this market position to its insistence on unsurpassed quality. We feel an
obligation to this tradition and it is our main priority for the future. This obligation is the
greatest incentive there is, and we devote all our energy and commitment to it – tradition
shaping the future.
Hermes maintains numerous production sites and sales offices in all the main industrial
and emerging nations of the world, underlining its international commitment and its efforts
to provide its customers with a competent local consulting service.
MERCURIT® and HERMESIT®
long life grinding belts for costefficient intermediate grinding
Page 8
Brilliant results – Finishing with
MERCURIT® and cork polishing belts
Page 9
A great finish – special finishing with
webrax abrasive web polishing tools
Page 10
4
Smooth and precise – Superfinishing
with abrasives on a film backing
Page 11
Polishing with microlite discs
Page 11
wires
Hermes high-performance grinding
belts for cost-efficient wire grinding
Page 12
At a glance
Hermes program for
external cylindrical grinding
Page 14
1
5
A selection
of our sites
2
1|Headquarters Hamburg, Germany
2|Hermes Schleifkörper GmbH,
Dresden, Germany
3|Hermes Austria
4|Hermes USA
3
2
5|Hermes China
partner all over the world
Supporting nature and the environment
C
ompliance with national and international laws and regulations is one of the key principles
of Hermes corporate policy and protection of the environment is a core constituent of our
corporate responsibility.
As a consequence, as long ago as 1996, Hermes was the first European abrasives factory
to be successfully audited on a voluntary basis in line with the EMAS (Eco-Management
and Audit Scheme).
The management system currently being implemented covers all areas of the company,
with processes relevant to the environment, as well as to quality, being described and
monitored internally as well as certified externally by the TÜV-Nord organization in line with
DIN EN ISO 14001 : 2009.
Quality – our trademark
B
ound to tradition on the one hand, yet a pioneering developer of innovative products on
the other, Hermes places greatest emphasis on the production of high-quality, state-ofthe-art abrasives.
To enable this high standard of quality to be pursued and expanded still further in the
future, the TÜV NORD CERT auditing company awarded the Hermes Group the quality seal
for meeting the requirements of DIN EN ISO standard 9001.
Our customers – in other words you – benefit considerably from this reliability.
World wide web – Come and see our page
T
he Hermes websites is continuously updated and forms an important information platform
for customers and interested parties. Here you will find virtually all the information which
is useful when planning and purchasing Hermes abrasives.
Hermes websites use databases to inform you about new products and application solutions
and to provide you with facts and figures about the Hermes Group.
Numerous useful functions help you find out quickly and easily everything you need to
know about Hermes abrasives. In the "Product Finder" for example, enter simple search
queries to find the correct Hermes type and have its key product information (such as
product structure and benefits) and primary applications displayed. Alternatively, use the
interactive "Contact Finder" for a list of Hermes experts (both office-based and sales) –
all over the world, of course.
Regardless of where you are on our website, whether in the "Product Finder" or in the
application solutions or in the "Service" area – you always have the option of downloading
information about our products and application solutions for immediate use on your PC,
tablet or smartphone.
www.hermesabrasives.com
Try us out. We look forward to your visit.
3
Powerful abrasives specially designed
for external cylindrical grinding
D
ue to this technique's advantages, these days it is difficult to imagine
industrial machining without external cylindrical grinding. The external
cylindrical grinding process is used for precision-grinding and polishing of
rotationally symmetrical parts.
Its chief area of application extends from the centerless external cylindrical grinding of stainless steel pipes in a continuous
process to the external cylindrical grinding between centers of
piston rods with subsequent superfinishing, and also covers
the external cylindrical grinding of high-alloyed stainless steel
wires..
Especially for external cylindrical grinding
Hermes abrasives are bringing benefits
you'll appreciate:
• Belt grinding processes offer a lot of different
surface qualities
• High stock removal rates without high tool wear
• Long tool live
• Similar stock removal rates in comparison to
turning processes
• Highest consistent surface qualities
up to Ra > 0.1 µm
• Flexible machining process due to quick change
of types and grits
• Cost-effective machining process due to low
machine and tool costs
4
More cost-effective grinding with our
Hermes long-life grinding belts.
With our MERCURIT® and HERMESIT® long-life grinding belts, Hermes offers specially
developed products for the external cylindrical grinding of pipes, rods, rolls and wire. The
special three-dimensional structure of the abrasive grain causes new grain layers to be constantly produced during the grinding process.
This brings advantages that significantly improve the cost efficiency of your grinding
processes:
• consistent surface structure and roughness depths
to the very end of the tool's life
• Homogeneous surface structures,
as required for good corrosion resistance, for example
• 3 to 5 times longer tool life than conventional grinding belts, reducing stoppages
for belt replacement and machine downtimes, and saving costs on the disposal of used
belts
tHe mercurit® grinding belt system
Hermes has developed the mercurit® grinding belt system especially for external
cylindrical grinding. With this system, the rb 590 y – already established on the market –
covers intermediate grinding and fine sanding, while the rb 598 y (silicon carbide grain)
special grinding belt is suitable for the cost-efficient finishing and polishing of cylindrical workpieces.
Both types of belts are based on a compact agglomerate grain structure (the "MERCURIT®
principle"), in which the agglomerate is produced by a great many abrasive grains in a
binding mixture.
MERCURIT® Agglomeratee
tHe "Hermesit® PrinciPle"
Hermes HERMESIT® long-life grinding belts feature special hollow spheres covered with
grain material, which wear uniformly during grinding and simultaneously release new
grains.
HERMESIT® long-life grinding belts produce an exceptional surface finish – the socalled "Hermesit® finish". We recommend the use of low grinding pressure for
working with rb 535 X or rb 545 X belts. On the other hand, rb 535 y and rb 545 y
belts achieve their best grinding results when medium grinding pressure is applied.
These abrasives are universal and suitable for dry and wet-grinding (resistant to
water, emulsion and oil).
HERMESIT® Hollow sphere
5
tubes, rods, rollers
F
or the external cylindrical grinding of tubes, rods and roller, we differentiate between centerless
cylindrical grinding and grinding between centers. The machining steps depend on the initial
condition and nature of the workpieces, and the desired final quality.
In addition to dry-grinding, emulsion-grinding is also common. This reduces the grinding
temperatures, protecting the workpiece, lengthening the belts' service life and considerably
reducing grinding dust and noise emissions. Modern cylindrical grinding processes require
extremely constant material removal rates combined with constant surface characteristics.
Example: Grinding stainless steel pipes on a 6-station cylindrical grinding machine.
Initial grinding
Station
1
Type
CR 456 Z
Grit
+ 80
Hardness
Contact Wheel
Application
Comparison grinding pressures
low
HERMESIT
RB 535 Y
RB 545 Y
MERCURIT
RB 598 Y
MERCURIT
RB 590 Y
high
3
4
FINISH
5
MERCURIT RB 590 Y
P 120
P 180
P 240
6
MERCURIT RB 598 Y
P 320
P 400
80°Sh A
80°Sh A 60°Sh A 60°Sh A 60°Sh A
60°Sh A
Smoothing
weld seams and
grinding of surface
faults
Grinding processes for refining the
surface pattern and preparating for
final finishing
Producing the final
and pre-defined
surface pattern
Comparison arithmetical mean deviation roughness profile
1,2
Arithmetical mean deviation roughness profile Ra [ µm ]
HERMESIT
RB 535 X
RB 545 X
MERCURIT
RB 598 Y
Intermediate grinding
2
INTERMEDIATE GRINDING
FINISH
1,0
0,8
0,6
0,4
0,2
0,0
P 180 P 240 P 320 P 400 P 600 P 320 P 400 P 600 P 800 P 1000 P 1200 P 400 P 600 P 800 P 1000 P 1200
MERCURIT®
RB 590 Y
MERCURIT®
RB 598 Y
Cork
RB 515 X
Cork
RB 515 Y
Test parameters: Grinding machine: Löser rund BSM; Abrasive belt: 150 x 3500 mm; Contact wheel: Ø 400 mm, 60° Sh
A; v C = 32 m/s, v f = 4 m/min; Cooling lubricant: Emulsion 4%; Material: Tube Ø 40 mm, 1.4301
Note: The varying of the test parameters, especially the grinding pressure and the hardness of the contact wheel, enables an
additional reduction of roughness values.
6
Pure performance –
Hermes initial grinding belts
Initial grinding tackles coarse surfaces, weld seams and flaws in the material's surface.
Possible flaws include scratches, scores, cracks, markings, oxidation, geometrical deformation and impurities.
Coarse grit sizes (24 to 80) are primarily used for initial grinding. One of the most impressive
features of Hermes initial grinding belts is their extreme grain sharpness and high removal
rates. All products boast sturdy backing and can be used for both dry and wet-grinding
(resistant to water, emulsion and oil).
Hermes recommendation for initial grinding
RB 377 YX
Strong aluminum oxide abrasive belt, recommended for
grinding small batch sizes
RB 484 44 Z
High-performance zirconia alumina abrasive belt,
especially suitable for initial grinding stainless steel
CR 456 Z
High-performance ceramic grain abrasive belt,
especially suitable for initial grinding wet or dry at low
grinding pressures corrision and acid-resistant steel and
titanium and nickel alloys
HERMESIT RB 535 Y
Particularly durable HERMESIT® aluminum oxide abrasive
belt for producing satin surfaces ("HERMESIT®-Finish") at
medium grinding pressures, especially suitable for initial
grinding steel, stainless steel and high-alloyed steel
HERMESIT RB 545 Y
Particularly durable HERMESIT® silicon carbide abrasive belt
for producing brilliant shining surfaces ("HERMESIT®-Finish")
at medium grinding pressures, especially suitable for initial
grinding and descaling steel, stainless steel, high-alloyed
steel and titanium
7
MERCURIT® and HERMESIT® long-life grinding
belts for cost-efficient intermediate grinding
I
ntermediate grinding is used to further smooth initially ground surfaces. For this purpose, grinding
belts in the medium to fine grit range (80 to 1200) are employed.
MERCURIT® and HERMESIT® long-life grinding belts were specially developed for intermediate
grinding. The special three-dimensional structure of the abrasive grain causes new grain layers
to be constantly produced during the grinding process. This keeps surface structures and
roughness depths constant and homogeneous throughout the belts' life. In fact, they last 3 to
5 times longer than conventional grinding belts. This cuts down on stoppages for belt replacement and machine downtimes, on disposal costs and the number of subsequent machining
steps required for workpieces.
Hermes recommendations for intermediate grinding
MERCURIT RB 590 Y
Special development for cylindrical grinding – abrasive belt with
aluminum oxide agglomerate grain for producing satin surfaces
and with a much longer tool life in comparison to conventional
abrasive belts at high grinding pressures
HERMESIT RB 535 X
Particularly long-life HERMESIT® aluminum oxide abrasive belt
for producing satin surfaces ("HERMESIT®-Finish") at low
grinding pressures, especially suitable for grinding steel,
stainless steel and high-alloyed steel
Mercurit® Agglomerate grain
HERMESIT RB 545 X
Particularly long life HERMESIT® silicon carbide abrasive belt
for producing brilliant shining surfaces ("HERMESIT®-Finish") at
low grinding pressures, especially suitable for grinding steel,
stainless steel and high-alloyed steel and titanium
HERMESIT® Hollow sphere
HERMESIT RB 535 Y
Particularly long life HERMESIT® aluminum oxide abrasive belt
for producing satin surfaces ("HERMESIT®-Finish") at medium
HERMESIT RB 545 Y
for producing brilliant shining surfaces ("HERMESIT®-Finish") at
medium grinding pressures, especially suitable for grinding
steel, stainless steel and high-alloyed steel and titanium
8
Brilliant results – Finishing with
MERCURIT® and cork polishing belts
U
ltra-fine surfaces with defined roughness depths are a prerequisite for the production of
satin, high gloss or "mirror-finish" surfaces, or as preparation for subsequent processes
such as galvanizing and anodizing.
Hermes offers numerous quality abrasives specifically for these machining operations:
MERCURIT® and cork polishing belts, webrax abrasive web polishing belts or flap discs,
FB 637 superfinish abrasive film rolls and microlite polishing wheels.
Hermes recommendations for finishing
MERCURIT RB 598 Y
Special development for finishing and polishing cylindrical
workpieces – silicon carbide agglomerate abrasive belt for
producing brilliant shining surfaces with consistent stock
removal rates, especially suitable for low to medium grinding
pressures
Cork RB 515 X
Cork/silicon carbide abrasive with elastic cork particles for
a "cushioned" grinding, especially suitable for producing
high-polish or "mirror-finish" surfaces with a fine-structured
pattern
Cork RB 515 Y
Particularly tear-resistant cork/silicon carbide abrasive
belt with elastic cork particles for a "cushioned" grinding,
especially suitable for producing high-polish or "mirror-finish"
surfaces with a fine-structured pattern at high belt tensions
Cork RB 525 X
Cork/aluminum oxide abrasive belt with elastic cork particles
for a "cushioned" grinding, especially suitable for producing
satin surfaces with a fine-structured pattern
9
A great finish – special finishing with
webrax abrasive web polishing tools
WebrAX-AbrAsive Web belts
webrax abrasive web belts are made from special fiber web combined with a cloth backing.
The grain is embedded firmly in the web with binding agent and is therefore extremely tough
and durable. These belts are universal and suitable for dry and wet-grinding (resistant to water,
emulsion and oil).
Hermes recommendation
webrax-An 701 50
Very compact aluminum oxide/silicon carbide abrasive web
belt, reinforced with cloth, for structure grinding stainless steel
surfaces
convolutely WrAPPed WebrAX AbrAsive Web WHeels
Thanks to their excellent plybond strength, convolutely wrapped webrax abrasive web wheels
produce an optimum web finish. These wheels are universal and suitable for dry and wetgrinding (resistant to water, emulsion and oil).
Hermes recommendations
webrax-oA 710 gWs
Convolutely wrapped aluminum oxide
webrax abrasive web wheels for producing
satin surfaces
webrax-os 715 gWs
Convolutely wrapped silicon carbide
webrax abrasive web wheels for producing
brilliant shining surfaces with a finer surface
structure in comparison to aluminum oxide
wheels
10
Smooth and precise – Superfinishing with
abrasives on a film backing
T
he process known as "superfinishing" or "microfinishing" is used for the ultra-fine polishing
of pressure cylinders, rolls, bearing points on shafts, and similar items.
The grinding film is pressed against the rotating, initially ground workpiece in a highfrequency, oscillating transverse motion. Using Hermes grinding films for the micro-grain
range down to P 2500/9µm, this technique is able to produce high-precision functional
surfaces with constant, low surface characteristics.
fb 637
Film-backed aluminum oxide abrasive rolls with an
excellent tool life and consistent roughness values due to
even pressure-resistant polyester film backing
webrax-AN 701 50
Polishing with microlite wheels
H
ermes microlite polishing wheels are elastic and, because of their excellent adaptability,
are particularly suitable for fine sanding. They satisfy the most stringent requirements in
terms of gloss and smoothness of workpiece surfaces ("mirror finish"). Polyurethane-based
binder containing a silicon carbide abrasive grain is formed in a special process to create
microlite polishing wheels with varying degrees of elasticity.
microlite Polishing wheel
In many cases, the use of microlite polishing wheels for fine sanding reduces the number of machining steps and increases the productivity
and cost efficiency of your work process.
As well as being suitable for dry-grinding, microlite
micro polishing
wheels are resistant to water, emulsion and oil and can therefore
also be used for wet-grinding.
Grain
Bonding
Backing
Grit range
Outer Ø
Width
Silicon carbide
Polyurethane with
different flexibilities –
BU10 (very soft) to
BU70 (very hard)
30 - 100° Shore A
F 12 – F 800
40 mm - 500 mm
10 mm - 150 mm
(width > 150 mm
on request)
Especially suitable for finest grinding
and for deburring, cleaning and
descaling different materials (e.g. Nonferrous metals, high-temperature steel,
stainless steel, cast iron and hard metal
11
Hermes high-performance grinding
A
special type of external cylindrical grinding is the grinding of wire on so-called planetary head
grinding machines, whereby one or two grinding units per grinding station rotate around the
wire during the grinding process.
The advantages of the cutting wire-grinding process over electrochemical methods such as
etching, and also over other cutting techniques such as draw-peeling or turning, are especially
evident when descaling and removing microcracks in the wire surface.
To ensure the required long tool life whilst simultaneously achieving constant surfaces, Hermes
offers suitable abrasives in the form of high-performance grinding belts with zirconia alumina
grain and long-life grinding belts with MERCURIT® agglomerate or HERMESIT® abrasive grain.
Hermes recommendations
rb 484 44 Z
High-performance zirconia alumina abrasive belt, especially
suitable for initial grinding stainless steel
mercurit rb 590 y
Special development for cylindrical grinding – abrasive belt with
aluminum oxide agglomerate grain for producing satin surfaces
and with a much longer tool life in comparison to conventional
abrasive belts at high grinding pressures
Hermesit rb 535 y
Particularly long life HERMESIT® aluminum oxide abrasive belt
for producing satin surfaces ("HERMESIT®-Finish") at medium
Hermesit rb 545 y
for producing brilliant shining surfaces ("HERMESIT®-Finish")
at medium grinding pressures, especially suitable for grinding and descaling steel, stainless steel and high-alloyed steel
and titanium
12
belts for cost-efficient wire grinding
example: Grinding of stainless steel wire on a 2-station wire grinding machine
stAtion
tyPe
grit
APPlicAtion
initiAl grinding
finisH
1
2
mercurit rb 590 y
mercurit rb 590 y
P 80
P 120
Descaling
Producing of the final, pre-defined
surface structure as preparation for
following operating processes
HERMESIT RB
545 Y
13
mercurit® long-term abrasive belts
type
Hermesit® long-term
mercurit rb 590 y
mercurit rb 598 y
Hermesit rb 535 X
Hermesit rb 545 X
MERCURIT® aluminum oxide
(Agglomerate)
MERCURIT® silicon carbide
(Agglomerate, soft)
HERMESIT® aluminum oxide
(Hollow spheres)
HERMESIT® silicon carbide
(Hollow spheres)
Product structure
Abrasive grain
Bonding
Resin, red-brown
Resin, black
Resin, red-brown
Resin, black
Backing
heavy duty, semi-stiff,
synthetic Y-cloth
heavy duty, semi-stiff,
synthetic Y-cloth
heavy, semi-flexible X-cloth
P 80, P 120, P 180, P 320, P 400,
P 600
P 240, P 320, P 400,
P 600 - P 1200
P 150 - P 320,
P 400, P 600
P 150 - P 320,
P 400, P 600, P 800
• Produces the "HERMESIT® Finish"
with the matt HERMESIT® effect
at low grinding pressures
• 3 to 5 times longer tool life
compared to conventional
grinding belts
• Produces the "HERMESIT® Finish"
with the brilliant HERMESIT® effect
at low grinding pressures
grinding belts
Steel, stainless steel,
high-alloyed steel
high-alloyed steel
Grit range
Product benefits
material
(especially suitable)
• Special development for cylindrical • Special development for producing
grinding (wet applications)
brilliant shining surfaces
at a high grinding pressure
• Constant stock removal rate with
a simultaneous polishing effect
• Especially suitable for low to
grinding belts
medium grinding pressures
• For producing a satin surface
high-alloyed steel, titanium alloys
high-alloyed steel, titanium alloys
Applications
Initial grinding
Finishing

–
–
–







further cloth-backed abrasive belts
type
rb 377 yX
rb 484 44 Z

superfinish abrasive film rolls
cr 456 Z
fb 637
Aluminum oxide
Product structure
Abrasive grain
Aluminum oxide
Zirconia alumina
Ceramic
Bonding
Resin, red
Resin, blue
Resin-Procut, green
Resin
Backing
heavy duty, semi-flexible
YX-cloth
heavy duty, semi-stiff Z-cloth
heavy duty, semi-stiff Z-cloth
Polyester film
with Anti-Slip Backing
+ 36, + 40, + 60 to + 320,
+ 400, + 500
+ 24, + 36 to + 120
+ 36 to + 120
P 120, P 180, P 240, P 280,
P 360 - P 1500, P 2500
Grit range
Product benefits
• Hard-wearing standard product
• Very strong polyester/cotton cloth
backing
• Recommended for grinding small
batch sizes
• High-performance
zirconia alumina abrasive belt
• Heavy and very stable polyester
cloth backing
material
(especially suitable)
• High-performance abrasive belt
with ceramic grain and with
temperature-reducing additives
• Can be used wet and dry at low
grinding pressures
• The even and compressionresistant polyester film guarantees
constant application parameters
and consistant surface roughness
• Excellent tool life
• Resistant to oil and emulsion
Stainless steel
Corrosion and acid resistant steels,
titanium and nickel alloys
Stainless steel



–

–
–
–
Finishing
–
–
–

Application
Initial grinding

14
very suitable

suitable
–
less suitable
abrasive belts
cork abrasive belts
Hermesit rb 535 y
Hermesit rb 545 y
cork rb 515 X
cork rb 525 X
cork rb 515 y
HERMESIT® aluminum oxide
(Hollow spheres)
HERMESIT® silicon carbide
(Hollow spheres)
Cork / Silicon carbide
Cork / Aluminum oxide
Cork / Silicon carbide
Resin, red-brown
Resin, black
Resin, black
Resin, red-brown
Resin, black
heavy duty, semi-stiff Y-cloth
P 60 - P 180, P 240, P 320,
P 400, P 600
P 40, P 60 - P 120,
P 180, P 280
P 150, P 220, P 280, P 320,
P 400, P 600 - P 1000
P 220, P 280, P 400, P 600
P 320, P 400, P 800 - P 1200
• Produces the "HERMESIT®
Finish" with the matt
HERMESIT® effect at medium
grinding pressures
grinding belts
• Produces the "HERMESIT®
Finish" with the brilliant
HERMESIT® effect at medium
grinding pressures
grinding belts
• Produces a high-polish or
"mirror-finish" surface with a
fine-structured pattern
• Particulary tear-resistant
backing, even at higher belt
tensions
• Polishing effect due to elastic
cushioning cork particles
• Produces satin surfaces with
a fine-structured pattern
• Produces a high-polish or
"mirror-finish" surface with a
fine-structured pattern
high-alloyed steel
high-alloyed steel


–
–
–










webrax abrasive web tools
Polishing wheels
webrax-An 701 50
webrax-oA 710 gWs
webrax-os 715 gWs
microlite polishing wheels
Aluminum oxide / Silicon carbide
Aluminum oxide
Silicon carbide
Silicon carbide
Resin
Resin
Resin
Polyurethane
Abrasive web,
reinforced with cloth
Abrasive web
Abrasive web
30 - 100° Shore A
Aluminum oxide: + 80, + 100, + 180, + 280
Silicon carbide: + 800
+ 80 to + 120,
+ 180, + 280
+ 100, + 180, + 280,
+ 500, + 800
F 12 - F 800
• Silicon carbide grain means
brilliant shining surfaces
• Finer surfaces in comparison
to aluminum oxide grain
• Especially suitable for very
fine grinding and also for
deburring, cleaning and
descaling of different materials
• Compact, aggressive grinding
abrasive web
• Especially suitable for
structuring grinding
• Produces satin stainless steel
surfaces
• Aluminum oxide grain gives
satin surfaces
Stainless steel
–
NF metals, high-temperature steel,
stainless steel, cast iron or hard metal
–
–
–



–




15
For more information from Hermes
about metalworking:
Hermes AbrAsives, ltd.
524 Viking Drive • Virginia Beach, VA 23452
PO Box 2389 • Virginia Beach, VA 23450
Phone: 757-486-6623 • Toll Free Phone: 800-464-8314
Fax: 757-431-2370 • Toll Free Fax: 800-243-7637
www.hermesabrasives.com
226 US 41.40 . The right to make amendments is reserved.

All Round Performance

Transcription

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