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DIAMOND AND CBN GRINDINGTOOLSPRECISION IN PERFECTION
www.bdmdiamant.de
Diamantwerkzeug KGbdm
CONTENT
HAUPTSITZ
―
BDM Diamantwerkzeug KGKirchweg 2A34385 Bad Karlshafen
Telefon: 05672-921 000 5Telefax: 05672-921 000 6EMail: [email protected]
ABOUT BDM 3 - 4
DRESSING TOOLS 20 - 25
OVERVIEW OF SHAPES 5
EQUIPMENT 26
DIAMOND AND CBN GRINDING WHEELS 6 - 19
BONDS
RESIN BOND 7
SINTERED METAL BOND 8
CERAMIC BOND 9
GALVANIC BONDS 10 - 11
DEFINITIONS 12 - 13
SHAPES 14 - 19
NOTES 27
ABOUT BDM
bdm is the leading brand for tool solutions in surface
processing and the cutting of materials. We have our
own development, production and sales to always
present you with the best possible solutions.
We are at your disposal at any time for detailed
advice. We deliver tailor-made solutions for your
projects with our bdm diamond tools, CBN
grinding tools or dressing tools.
Outstanding quality and best service. Constant further
development of quality and safety has ensured satisfi ed
customers for over 35 years.
© 2020 All Rights Reserved.
Get to our website here
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Fast production Quality & service
Our production is extremely fast and reliable. We manufacture special shapes and profile tools at short notice.
Made in Germany
Our products are “Made in Germany” and stand out for their high standards and quality. We produce at two locations in the capital Berlin.
Outstanding quality and best service. A continuous development of quality and safety has ensured satisfied customers for over 35 years.
Reliability
You can also rely on our tools in extreme situations. With products from bdm you work accurately and reliably in every situation.
Individual solutions
Customized solutions are the key to success. For each individual requirement we develop the appropriate solution together.
All-round service
With the all-round service you can benefit from our know-how and it is an easy way to increase productivity.
OUR QUALITY PROMISE
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5
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
9A3
12V9
11V9
12V5
12V4
12V2
12C9
12A2-45°
12A2-20°
11A2
6A9
6A2
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
4BT9
1120
4A2
14EE1
14E6Q
14U1
14F1
1FF1
14V1
1V1
14A1
1A1
1L1
OVERVIEW OF SHAPES
12A245°-S
12A2-45°-S
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from bdm-Diamantwerkzeug KG are precision tools in terms of their composition as well as dimensional and concentricity tolerances. When used accordingly, there are economic advantages over all other abrasives.
Constant research for new binding systems as well as further development of the manufacturing technologies in our laboratories make it possible to always be able to offer the solution to your current machining tasks.
DIAMOND AND CBN GRINDING WHEELS
The selection of the suitable diamond type is made from a very wide range of synthetic and natural, metal-coated, vapor-coated or uncoated, regularly or irregularly shaped grains.
hard metal, hard metal / steel combinations, sprayed and welded alloys, oxide ceramics, porcelain, earthenware, silicon, ferrite, semiconductor materials, graphite, electric carbon, natural and artifi cial stone, glass fi ber reinforced plastics, Thermosets, glass, quartz, refractories, polycrystalline diamond (PCD) and polycrystalline CBN (PKB).
DIAMOND
Due to its chemical properties and hardness, it is particularly suitable for processing:
DIAMOND AND CBN GRINDINGWHEELS
7
DIAMOND AND CBN GRINDINGWHEELS
The main components are phenolic resins. Resin bonds fl ow at approx. 180-200°C. In other words, they polymerize from powder to liquid. In contrast to the ceramic bond, synthetic resin bonds are much more susceptible to solutions, oils, polluted water and temperature infl uences.
They are more elastic than ceramic bonds, yet very tough and strong, and also have good thermal conductivity, which means that frictional heat can be removed more quickly from the cutting zone, which means that the grinding behavior is cooler, especially for dry grinding tasks.
CUBIC - CRYSTALLINE BORON NITRIDE (CBN)
It is manufactured synthetically, is resistant to high temperatures and is mainly used to machine the following materials:
tempered steels, cast iron, spring steels, case hardening steels, high alloy steels, hot and cold work steels, high speed steels, ball bearing steels and stellites. Similar to diamond, CBN can also choose from a wide range of types with different properties.
RESIN BOND
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The main components are various sintered bronzes. Steel and carbide bindings are rarely used due to their very low self-sharpening effect. Due to the possibility of alloying with a wide variety of metal fillers, this bond in the high-speed range at cutting speed > 100 m/s can lead to high cutting performance and tool life.
This bond group also enjoys a high level of value in the profile grinding area due to the eroding conditioning (simultaneous profiling and sharpening) that is possible today.
The sintering temperature, adjusted to the respective binding properties, fluctuate between 700-800°C. Sintered metal bonds are harder than synthetic resin bonds, are more wear-resistant and very good heat conductor. They are mainly used for grinding processes in the production of hard metal, HSS E, ceramics and glass.
SINTERED METAL BOND
SINTERED METAL BOND
BONDS
SINTERED METAL BOND
9
BONDS
We offer users modern grinding tools that are individually tailored to the desired process. The grinding wheel specifications are based on in-house developed binding systems. This ensures optimal grain integration for the abrasives used. The key function is the structural design.
The grinding wheels are manufactured on modern machines with the latest CNC profiling technology. The process and the organization of the production guarantee our customers the highest quality standards when using the grinding wheels with the same structural properties and the closest hardness tolerances.
Outstanding tool life, profiles that also remain profiles, easy to dress and profile, cool grinding and strong machining. Services that are rightly required, particularly in the automotive and rolling bearing industry, in tool making and in the manufacture of cutting tools. These characteristics distinguish our ceramic-bonded grinding wheels.
CERAMIC BOND
DIAMOND AND CBN GRINDINGTOOLS IN VITRIFIED BOND
CERAMIC BOND
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In contrast to the synthetic resin and metal bonds, the diamond or CBN bodies protrude relatively far from the abrasive coating. They give the electroplated tools a high degree of grinding friendliness and high cutting performance.
When machining wear-resistant and short-chipping materials, the constant grinding performance is not guaranteed due to the lack of a self-sharpening effect with single-layer grinding surfaces.
Since galvanic bonds allow peripheral speeds > 200 m/s, they can also be used very well in high-speed production. Galvanic abrasive coatings are used on non-dressable profile carriers and have a very good profile consistency.
GALVANIC BOND
GALVANIC BOND
BONDS
GALVANICBOND
1 1
BONDS
Negative profile dressing rolls have been used in series production for many years. They guarantee high dimensional and form accuracy of the ground workpieces. They are available in 2 bond variants with different characteristics. On the one hand the hand-set infiltrated version and on the other hand the galvanically statistically manufactured version.
Common to both roller types is that the workpiece end profile, which also represents the dressing roller profile, must be “mapped” in a ring-shaped negative master form. The selected diamond grit is deposited in the profile of the negative master form ring in different manufacturing processes and then sintered or electroplated to the base body of the later profile dressing roll.
APPLICATION AREA GALVANIC NEGATIVE PROCEDURES
GALVANIC BOND
In addition to the grinding of carbide, electroplated diamond tools are also ideally suited for the machining of
Green (presintered) hard metals, Thermosets, GFK-Materials, Gaphite, Electric carbon, Ferrites, Ceramic materials, Hollow glass and Laboratory glass
CBN tools with galvanic bonding are preferred for grinding bores on internal and jig grinding machines. The tools are used for hardened steels above 58 HRC, but especially for high-alloy tool and high-speed steels.
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There are several methods for this: Dressing with brake-controlled dressing devices, with workpieces made of soft steel or with electroplated diamond pulling strips. After using the dressing methods described last, the diamond or CBN wheel must be sharpened, i.e. the bond must be reset to expose the abrasive grain. It is best to do this with the whetstone provided. The discs are optimally sharpened if you get caught on the abrasive grains with your fi ngernail.
The depth infeed is dependent on the diamond/CBN grain size. The fi ner the grit selected, the more it decreases. The following infeed depths are recommended:
Special shapes and profi le tools can be produced at short notice in this binding. The steel bodies required for this are manufactured by us according to the drawing or by the customer. Used (processed) diamond and CBN tools can be provided with a new galvanic abrasive coating.
In order to obtain the best possible surface quality, it is suffi cient to reduce these infeed depths or - even better - to run the disc several passes without infeed, so to speak to “burn out” the material. A too large infeed reduces the service life of the wheel. Large contact areas during grinding require a lower infeed than the above-mentioned average fi gures. Metal bonded diamond / CBN wheels must be run with less infeed than plastic bonded wheels (higher grinding pressure - the bond is harder).
DRESSING OF GRINDINGWHEELS
DRESSING AND SHARPENNING OF DIAMOND AND CBN DISCS
GRAIN SIZE
2 / 100 mm
1 / 100 mm
5 Mikron
2 – 4 Mikron
1 – 1,5 Mikron
bei Verwendung von Korn 251 – 151
bei Verwendung von Korn 107 – 76
bei Verwendung von Korn 64 – 46
bei Verwendung von Korn 30
bei Verwendung von Korn 25 – 15
Dressing of cup wheels: Loose silicon carbide grit size 80-120 mesh is spread on a steel plate and the diamond or CBN wheel is moved over it under light pressure. This resets the bond and exposes the abrasive grit.
THERE ARE THE FOLLOWING POSSIBILITIES
DEPTH ADJUSTMENTSPECIAL SHAPES
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2/100 mm
1/100 mm
5 Mikron
2 - 4 Mikron
1 - 1,5 Mikron
when using grain 251 - 151
when using grain 107 - 76
when using grain 64 - 46
when using grain 30
when using grain 25 - 15
The grain size used largely determines the grinding performance and the surface quality achieved. With constant carat content, the number of grain tips on the surface of the base increases with fi ner grain, subjectively the disc becomes denser, harder and less abrasive. In order to create chip spaces on the abrasive coating, it is therefore necessary to adjust the concentration to the grain size in order to prevent the grain from being packed too tightly.
Dressing means the restoration of the Running accuracy of a diamond or CBN wheel.
DEFINITIONS
1 3
DEFINITIONS
Before use, please ensure that the machine is in perfect condition. It must not show any vibration. The shaft and the disc flanges must be checked carefully so that the disc runs straight without any vertical or lateral runout. When using the disc, please ensure that the coolant supply is sufficient.
Check the peripheral speed at which your disc operates.The normal average working speed is 25 m/sec. It is better to graduate in:
15 - 20 m/sec. For metal bonds 25 - 30 m/sec. For plastic bonds
The range of application of the diamond/CBN grit can generally b Negative profile dressing rolls have recommended as follows:
INSERTING THE DISC
DIAMOND-/CBN-GRAIN
Korn 301 - 251
Korn 181, 151, 126
Korn 126, 107, 91, 76
Korn 76, 64
Korn 64, 54, 46
D/B 151
D/B 107
D/B 64
pre-grinding of carbide and
HSS
pre-grinding of cutting tools
(turning tools)
Finish grinding of tools
Profile grinding
Fine grinding of all tools
new FEPA - standard for rough machining
new FEPA - standard for
Semi-finished machining
new FEPA - standard for finishing
Examples
TABELLEBond
Synthetic resinMetal
Electroplating
Synthetic resinMetal
Electroplating
Diamond:
CBN:
Wet grinding
Cup grinding wheels
25 - 4015 - 3010 - 30
25 - 5015 - 6025 - 60
Wet grinding Peripheral
grinding wheels
25 - 4015 - 3010 - 30
25 - 6025 - 6025 - 60
Dry sanding
25 - 4015 - 3010 - 30
25 - 6025 - 6025 - 60
RECOMMENDED CUTTING SPEED IN M/S
PERIPHERAL SPEED
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1A1/ 1L1/ Centerless
X
T
D
H
Ø
T
X
Bore diameter
10-900
2-300
2-20
= H
X
T
D
H
R
R
1V1
X
T
D
V°
H
Ø
T
V°
X
Bore diameter
50-450
2-60
5-75
2-20
= H
14A1
X
T U
D
H
J
Ø
U
T
J
X
Bore diameter
30-900
2-50
2-80
20-700
2-20
= H
14V1
X
T U
D
H
JV°
Ø
U
V°
T
J
X
Bore diameter
50-450
2-20
5-75
2-30
40- 300
2-20
= H
SHAPES
1 5
1FF1
X
XXT
D
H
R
R
Ø
T
R
X
Bore diameter
50-300
4-20
U/2
2-10
= H
14U1
X
XT U
W
H
J
D
Ø
U
W
T
J
X
Bore diameter
100-400
3-30
4-10
8-40
50-390
2-10
= H
14F1
X
T U
D
H
J
R
Ø
U
R
T
J
X
Bore diameter
75-300
2-20
U/2
2-30
60-280
2-10
= H
14E6Q
X
T1 U
H
J
T
D
V°
Ø
U
T1
T
J
V°
Bore diameter
150-200
6-8
5-60
10
110-150
3-6
= H
SHAPES
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SHAPES
Ø
U
T
J
V°
X
Bore diameter
50-250
2-15
5-20
70-120
35-90
4-6
= H
Ø
w
R
T
J
X
Bore diameter
75-150
4-5
0,5-1,0
6-10
30-59
1-2
= H
Ø
W
T minus X
E
J
X
Bore diameter
100-450
4-10
8-30
8-30
60-110
2-5
= H
4BT9Ø
W
T
J
X
Bore diameter
75-150
10
8-14
35-80
1-2
= H
X
U
H
J
T
D
V° XT 15° E
HJ
D
W
X10°
HJ
D
W
T
R
X
10°
20°
H
K
J
D
W
T
14EE1 4A2
1120
1 7
SHAPES
6A2Ø
W
T
E
X
Bore diameter
50-450
3-200
10-30
10-14
2-5
= H
11A2Ø
W
T minus X
E
K
J
X
Bore diameter
5-400
3-15
20-28
10
48-98
63-110
2-4
= H
6A9Ø
U
T
K
X
E
Bore diameter
50-300
2-10
6-30
45-200
2-6
10-14
= H
12A2-20°Ø
W
T minus X
E
K
J
X
Bore diameter
50-400
3-15
8-20
5-11
30-200
35-200
2-4
= H
X
ET
W
H
D
X
E
U
T
H
D
K
70°
W
E
X
T
H
D
K
J
W
E
X
T
H
D
K
J
20°
1 8
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Gbd
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Ø
W
T minus X
E
K
J
X
Bore diameter
50-300
3-20
20-35
8-15
40-200
50-200
2-5
= H
12V2Ø
W
T
E
K
J
X
Bore diameter
75-200
5-10
20-22
10-22
37-102
37-106
2-4
= H
Ø
W
U
T
E
K*
J*
X
Bore diameter
75-300
3-20
4-5
20-35
8-15
40-200
50-200
2-5
= H
12V4Ø
W
T
E
K
J
X
Bore diameter
50-150
10
6-12
5-10
30-90
30-90
1-2
= H
W
E
X
T
H
D
K
J
45°
W
E
X
T
H
D
K
J
W
E
X
U
T
H
D
K
J
45°
W
E
X
T
H
D
K
J
45°
10°
20°
H
K
J
D
E
X
T
12A2-45° / 12A2-45°-S 12C9
SHAPES
1 9
12V5Ø
W
T
E
K*
J
V°
X
Bore diameter
75-200
3-10
8-20
5-11
33-96
37-96
2-45
2-4
= H
12V9Ø
U
T
E
K
J
X
Bore diameter
50-400
3-20
20-60
8-30
35-300
35-300
1-5
= H
11V9Ø
U
T
E
K
J
X
Bore diameter
50-400
2-20
30-80
8-30
40-300
50-300
1-5
= H
9A3Ø
W
T
E
X
Bore diameter
100-400
2-20
22-30
10-30
2-5
= H
V°
W
E
X
H
D
K
J
E
U
T
H
D
K
J
70°
X
E
U
T
H
D
K
J
45°
X
X
ET
W
H
D
SHAPES
2 0
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Convert the existing PCD triangular system to the BCT dressers in your production within minutes. Compatible external dimensions mean that only the plates need to be replaced. The holder systems available in the machine can continue to be used. The dressing parameters are retained as a basis.
We offer all radii in the range of 0.050 - 0.500mm.
Dressing plates are excellently suited for “straight dressing”, but can also be used for profiling and copying, as they are only set with diamond rows in one plane. In addition, in most cases they replace expensive, ground profile diamonds which are used for profiling the various grinding wheels.
In addition, by varying the dressing side-feed, they ensure that the effective roughness depth of the grinding wheel surface is adapted to the machining process. The dressing plates contain natural diamond tips of selected quality. They vary in size and gap distance depending on the grinding wheel grain and are set by hand in several layers.
BCT DRESSER
DRESSING PLATES
DRESSING TOOLS
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The most modern production technology of dressing tools meets the most modern abrasives. For decades, there have been established manufacturing methods which have essentially hardly changed.
This was the reason for us to implement our ideas, taking into account the current technical possibilities and requirements for dressing tools, also with a focus on the increasingly important environmental protection. There are two basic types of dressing rolls, one is the form roll and the other is the profile roll.
Milled profile dressers have a precisely profile checked radius and high diamond quality that meets the increased requirements. Our precise production works with the most modern machines and is additionally monitored by the latest optical devices.
We guarantee consistent quality for new production and repair of profile dressing diamonds. We design individual dressing diamonds even for the most complicated grinding profiles. Profile dressing diamonds can be used for all grinding wheels (e.g. corundum, precious corundum, silicon carbide grit).
DRESSING ROLLS
PROFILE DRESSER
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ABRICHTWERKZEUGE
• Used for path-controlled dressing
• Brings together with CNC technology the desired profile into the grinding wheel
• Use on cylindrical / surface grinding machines and gear cutting machines
• Cylindrical dressing and shoulder dressing, path-controlled profile dressing for thread and gear grinding
• Available in CVD, PKD and natural grain
• Use in large series production
• Complete workpiece contour is shown
• Dressing by recessing
• Fast dressing process possible
• Hand-set or scattered diamond grains are embedded in the sintered system
• Edges in use can be CVD reinforced
DIAMOND SHAPED ROLLS
DIAMOND PROFILE ROLL
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Multi-grain dressers have the advantage over single grain dressing diamonds that they wear much more slowly and can be used until they are completely worn out. They are sintered together from grained diamond and metal powder of highly wear-resistant bronze or hard material to form a cylindrical aggregate. The sintered metal cartridge is then soldered into the corresponding holder. With this type of tool, the dressing work is carried out by several small diamonds, which together provide excellent performance. Multi-grain dressers achieve fl at surfaces and sharp edges. To achieve good results, the diamond grit should be at least twice the size of the grinding wheel grit to be dressed. Tools with a higher diamond content work more economically.
MULTI-GRAIN DRESSER
Breite der abrichtenden Schleifscheibe (mm)0
0 100
200
300
400
500
600
700
800
900
1000
20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
0,350,15
0,50,25
0,750,35
1,000,5
1,250,6
1,50,8
1,750,85
2,001,00
2,501,25
Gewicht des Diamanten (neu) in KaratGewicht des Diamanten (neugebraucht) in Karat MK 7
2
6
49
SW11
12,065Ø
45°
2
18Ø
7
SW14
12,065Ø
MK 1 K
2,5
11,5
49
38
45°
SW14
16Ø
7
2,5
11,5
42
1,5
9,045Ø
45°
MK 1 0 K
3,51,5
2431
,51,
5
45°
SW8
9,045Ø
MK 1 0
8Ø
1
27+
0,5
Zyl. DIN. 1820D
60°
Jung-Kegel1:13.15
Jung-Kegel1:13.15
20,5
29
11,5
4,5
8,6Ø
7,2Ø
7Ø
SW8
9Ø
21
615
7Ø
SW8
Kegel1:15
9Ø
17
1
11,5 1,
5
0,55,
52,
5 SW8
7,2Ø
2°11
7Ø
6Ø50°
Kegel1:10
17
1
123
2
1
SW8
2°52
9Ø
Jung-Kegel1:13.15
17
1
11,5
1,5
5,5
5
0,5
7,2Ø
2°11
9Ø5
0,5
7,2Ø
25+
0,5
19,5
+0,
2
1,5
5,5
2,5
1°25
,56
Jung-Kegel1:20
Jung-Kegel1:13.15
Jung-Kegel1:13.15
20,5
29
11,5
4,5
8,6Ø
7,2Ø
7Ø
SW8
9Ø
21
615
7Ø
SW8
Kegel1:15
9Ø
17
1
11,5 1,
5
0,55,
52,
5 SW8
7,2Ø
2°11
7Ø
6Ø50°
Kegel1:10
17
1
123
2
1
SW8
2°52
9Ø
Jung-Kegel1:13.15
17
1
11,5
1,5
5,5
5
0,5
7,2Ø
2°11
9Ø5
0,5
7,2Ø
25+
0,5
19,5
+0,
2
1,5
5,5
2,5
1°25
,56
Jung-Kegel1:20
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The single-grain diamond dresser is the most well-known diamond insert in the industry. Material surface quality and material dimensional accuracy depend on the quality of the dressing diamonds.
A prerequisite for the optimum dressing of a grinding wheel with the aid of diamonds is the coordination of the diamond weight and the size, width and hardness of the grinding wheel.
The dressing tool fulfills two main functions: It removes abrasive grains and metal particles that have become dull and restores the correct geometric grinding wheel shapes.
MULTI-STONE DRESSER
SINGLE-GRAIN DRESSER
DRESSING TOOLS
The actual diamond content in multi-stone diamond dressers is usually higher than in single-grain diamond dressers, but the price is much lower, as smaller diamonds are used predominantly.
The diamonds can be arranged in many different variations depending on the application. They are set by hand in one or more layers. Since a larger diamond surface on the grinding wheel is engaged in the multi-stone dresser, the work load is optimally distributed and thus a greater feed rate is possible.
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bdm lapping pastes are oil and alcohol-soluble; these are self-lubricating. Make sure that initially the grinding process is carried out in dry condition, however a dilution can be added if the surface to be ground becomes to dry. Any type of dilution agent can be used. With a commercially available fine oil the same results will be achieved. By adding the dilution agent a secure anchorage of the diamond grains on the lapping tool is guaranteed.
DIAMOND LAPPING PASTES
Diamond pastes are to be stored in a cool place; this is especially important in summer.
Due to our experience we can recommend the following grain combinations: 50 µm, 30 µm, 15 µm, 9 µm, 3 µm or 50 µm, 30 µm, 15 µm, 6 µm, 1 µm. Already with a 3 µm grain excellent surfaces are achieved. In most cases a mirror polish with 3 µm is sufficient.
Available in 5g syringes.
grain size
paste colour
0,25 µm 1 µm 3 µm 6 µm 9 µm 12 µm 15 µm 23 µm 30 µm 50 µm 70 µm 100 µm
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EQUIPMENT
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We offer grinding wheel holders and grinding mandrels for all common machines in highest precision from stock. We manufacture new grinding wheel holders and grinding mandrels with special dimensions promptly. We also offer short-term solutions for special designs, e.g. wheel sets.
Due to the high precision and the narrow manufacturing tolerances, our grinding wheel holders are suitable for the use of conventional grinding wheels as well as for the use of DIAMOND or CBN grinding wheels.
GRINDING WHEEL HOLDERS & GRINDING MANDRELS
bdm delivers your diamond tipped tools according to your specifi cations and drawings.
Our delivery program includes end mills, saw blades, chippers and special tools.
PCD MILLING & SPECIAL TOOLS
ABRASIVES ON UNDERLAYS
bdm offers high quality abrasives on a fl exible base for all industries. We deliver: sanding belts, serrated lock washers, roll goods, sheet goods and much more. Various carrier materials, connection systems and grain sizes from 20 to 1200 are available as standard for all applications.
In addition, we supply diamond abrasive belts for a wide variety of applications from roughing to polishing for many materials such as hardened steels with a hardness of> 55HRC, glass, ceramics, tungsten carbide, chrome and natural stone.
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NOTESEQUIPMENT
HAUPTSITZ―
BDM Diamantwerkzeug KGKirchweg 2A34385 Bad Karlshafen
Telefon: 05672-921 000 5Telefax: 05672-921 000 6EMail: [email protected]
