WO2020098852A2 - Disk-shaped tool and method for machining workpieces, cutting device, and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece - Google Patents
Disk-shaped tool and method for machining workpieces, cutting device, and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece Download PDFInfo
- Publication number
- WO2020098852A2 WO2020098852A2 PCT/DE2019/000296 DE2019000296W WO2020098852A2 WO 2020098852 A2 WO2020098852 A2 WO 2020098852A2 DE 2019000296 W DE2019000296 W DE 2019000296W WO 2020098852 A2 WO2020098852 A2 WO 2020098852A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- cutting
- grinding
- polishing
- disk
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
- B24D5/123—Cut-off wheels having different cutting segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/0675—Grinders for cutting-off methods therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D2205/00—Grinding tools with incorporated marking device
Definitions
- the invention relates to a tool and a method for machining workpieces, as specified in the respective preambles of claims 1 and 6, in particular for simultaneous multiple machining of workpieces, and a cutting device according to claim 10 and a use according to claim 12.
- cutting and separating processes are carried out using rotating tools that are used in stationary or mobile devices.
- CONFIRMATION COPY Separation process created surface quality of a cut surface does not meet the requirements in laboratories in which the cut surface generated as a result of the process is to be examined in more detail. Also in industrial production, clean, burr-free cut surfaces are required for further processing of separate workpieces, which should be as free as possible from any kind of damage. Post-processing of the cut surface in question, for example by a grinding or polishing process, is usually still necessary. Individual influences in the
- the tool When cutting by means of rotating tools, the tool plunges into it in a radial working direction
- a small thickness in the axial direction is desirable for rotating cutting tools
- rotating grinding tools usually have a greater thickness in the axial direction. In this way, the axial forces that occur with the side surfaces of the tool during grinding processes are absorbed and in radial processes during grinding processes
- Cutting tool for making gentle cutting cuts, particularly suitable for cutting composite materials with poor thermal conductivity.
- the circumference of the disk-shaped separating tool becomes one
- Cutting gap is produced, which is then widened via convex secondary cutting edges arranged adjacent to the main cutting edge, some of which act radially and some axially.
- the high temperatures that occur during material removal are thereby brought together in both the tool and the workpiece spread out larger area.
- Workpiece material in the area of the cut surfaces, which has undergone temperature-damaging structural changes that damage the material during the production of the cutting gap, is removed during the subsequent expansion of the
- the guide elements do not project axially beyond the cutting width.
- the guide elements can therefore not act in the axial direction, but should be through the
- WO 2011 / 029106A2 describes a wear indicator for rotating material-removing cutting or grinding tools, which have recesses or integrated into the tool Surveys provide information on the radial or axial wear of the tool.
- the present invention also has the object of providing a tool or a machining method which can be used on commercially available portable and stationary separating and
- Grinding machines can be used and with which it is possible through a cutting process to efficiently produce a workpiece with a defined surface characteristic.
- Another object of the invention is to provide a tool which, as far as possible, contains a wear indicator which the tool user can see before the start of a
- Operation enables a conclusion to be drawn as to whether the operation in question can be carried out completely within the remaining residual use capacity of the tool.
- the disk-shaped cutting tool according to the invention is for rotating cutting at least roughly along one
- the cutting tool does not only have cutting blades in a radial outer peripheral region of the cutting tool. At least one of two opposing disk flanks is / are provided with at least one grinding and / or polishing agent in a region that is radially inner with respect to the peripheral region.
- a disc-shaped tool according to the invention is
- a separation device according to the invention
- the inventive idea is further suitable for a method for machining test workpieces, namely by means of a disk-shaped cutting tool. During an exclusively at least roughly radial movement of the tool simultaneously and / or immediately, the following is separated,
- a wear indicator shows a remaining usage capacity, in particular a remaining cutting volume and / or a remaining usage time.
- the display reacts particularly preferably autonomously to mechanical wear of the tool that exceeds a certain dimension, in particular in that another color appears or becomes recognizable.
- the tool takes into account design-related loads such as temperature and tool fatigue that impair the quality of the workpiece.
- the wear indicator now even provides information regarding the process parameters to be selected, such as tool speed and feed speed.
- the invention avoids carrying out the
- the tool according to the invention in particular a cutting-grinding-polishing disk, has a disk-shaped base body, which preferably consists of a composite material, for example using a synthetic resin matrix, similar to a cutting disk.
- the tool according to the invention in particular a cutting-grinding-polishing wheel, particularly preferably also comprises at least one region effective in the radial working direction
- Cutting edges and at least one grinding and polishing area effective in the axial working direction are preferably designed to be geometrically indefinite, for example as granular abrasives.
- the tool according to the invention in particular a cutting-grinding-polishing wheel, preferably has a central bore in the axial direction, for fastening in the usual standardized tool holders of mobile and stationary cutting and
- the feed movement of the tool according to the invention in particular a cutting-grinding-polishing wheel, in the radial working direction for making the cutting cut,
- the tool according to the invention in particular a cutting-grinding-polishing disc, is provided with grinding and polishing agents on at least one side of the disc.
- the grinding and polishing agents are more finely grained or serrated or designed for less material removal than the release agents in order to achieve the intended improvement in the surface quality of the cut surfaces in the axial direction, while at the same time efficient cutting processing in the radial direction.
- the tool according to the invention ensures its usability on account of its combined geometric and kinematic properties and therefore does not have any of the problems and limitations described above. If during the cutting process the tool according to the invention touches the workpiece with its outer circumference in a radial feed movement several specific and specifically used factors for a defined deflection of the disk in both axial
- Cutting gap expansion which is given as an example for this explanation with 10%.
- the cutting gap is therefore 10%
- Cutting gap widening is made possible by certain properties of the disc.
- the operating speed of the cutting disc has a value that is a multiple of one of the natural frequencies of the cutting disc
- the cutting disc is excited to an axial vibration during operation, the amplitude of which is approximately up to 5% of the disc thickness.
- the Cutting disc not flat, but has an impact of approximately up to 10% of the width of the disc. This blow also supports the widening of the incision.
- a radial consumption of the tool according to the invention is basically up to
- Tool holder of the operating machine possible. This leads to more efficient use of the tool and enables the use of binding materials that are subject to wear and tear of the abrasive grains responsible for the cutting process. This enables a precise but efficient cut.
- Machine control required, which enables the axial feed of the grinding / polishing elements to the cutting surfaces. Only a radial feed is required from the machine.
- the disk-shaped tool according to the invention towards the center acts in a supportive manner with regard to the axial movement of the grinding and polishing means to the ones to be machined
- the thickening is preferably carried out in one or more steps around the
- the thickening can be carried out in one or more layers.
- Tool according to the invention in particular a cutting-grinding-polishing wheel, provided with at least one channel along at least one side flank for improved removal of chips, broken-out grinding material and / or cooling lubricant.
- At least one grinding and polishing area is designed without cooling channels.
- the grinding and polishing material is provided for
- the tool according to the invention in particular a cutting-grinding-polishing wheel, is equipped with an optical wear indicator for the at least one grinding and polishing area.
- the at least one grinding and polishing area is preferred, such as shown in Figures 2 to 5, multi-layer structure, the number of layers increases towards the center of the pane.
- the individual layers are individual
- the current degree of wear and thus also the remaining use capacity of the tool according to the invention, in particular of a cut-off polishing wheel, can be reliably determined.
- the wear indicator has a single layer, so that wear of the grinding layer on the side of the wheel
- This single-layer grinding layer on the side of the wheel can also be segmented towards the center of the wheel due to a different grain size or simply in a different color. If radial wear then reaches such a specific segment, conclusions can also be drawn about the state of wear. Wear in the radial and axial directions can thus be visualized.
- Figure 1 - a side view of a disc flank with
- Figure 3 - a side view of a disc flank with
- Figure 4 is a front view of the outer peripheral region showing the cutting edge and the step-like structure of the grinding and polishing components of a tool according to the invention, in particular a cutting-grinding-polishing wheel, and
- Figure 5 an exploded view of a tool according to the invention, in particular a cutting-grinding-polishing disc, in a side view with a representation of the color code to indicate wear of the cutting, grinding and polishing components
- FIG. 1 shows a side view of a particularly preferred embodiment of a disk-shaped tool 1 according to the invention, in particular a cut-off-polishing disk.
- a base body 2 is shown, preferably formed from a base body
- Cutting disc already contains release agents of a defined grain size and thus has geometrically undetermined cutting edges 5 on an outer peripheral region 3.
- Base body 2 is centric in the axial direction
- Fastening hole 7 provided for fastening the
- Disc-shaped tool 1 in particular a cutting-grinding-polishing disc, in standardized Tool holders of stationary or mobile cutting and grinding machines.
- grinding and polishing surfaces 6 are provided on one side on a disk flank 4 of the base body 2. These grinding and polishing surfaces 6 enable the cutting surface of a
- the separating cut is made in a radial working direction VR shown in FIGS. 2 and 4 by means of the
- the feed in a radial working direction VR can take place manually or mechanically, depending on the design of the cutting or grinding machine used.
- the channels 8 run in a particularly preferred embodiment of the disk-shaped according to the invention
- Tool 1 in particular a cutting-grinding-polishing wheel, along the wheel flank 4 in the radial direction to the outer circumferential region 3.
- the channels 8 are preferably inclined against the direction of rotation D in order to avoid clogging of the channels 8 during a movement in the radial feed direction VR or at least diminish.
- the disk-shaped tool 1 according to the invention in particular a cutting-grinding-polishing disk, is designed without channels 8.
- the disk-shaped tool 1 according to the invention, in particular a cutting-grinding-polishing disk is designed with single-layer grinding / polishing elements, with and without channels.
- FIG. 2 shows, in a side view of a wheel flank 4, the representation of the grinding stages of a wheel-shaped tool 1 according to the invention, in particular a cutting-grinding-polishing wheel.
- the disk-shaped tool 1 according to the invention in particular a cutting-grinding-polishing disk, is provided with grinding and
- the grinding and polishing agents are finely grained or serrated or designed for less material removal than the cutting edges 5 in order to improve the surface quality
- a thickening of the at least one flank 4 of the disk-shaped tool provided for engagement acts in a supporting manner in the exemplary embodiment shown.
- the thickening is preferably carried out in a single or multiple gradation 40 around the grinding and polishing surfaces 6 parallel to the cutting surfaces of the
- the movement in an axial working direction is intensified by vibrations of the disk-shaped tool 1, in particular a cutting-grinding-polishing disk, typical of the method, in an axial direction.
- Graduations 40 are clearly shown, which limit the area of a first grinding and polishing step 10 and the area of a second grinding and polishing step 11.
- the grain or toothing is the
- the grain or serration of the surface of the second grinding and polishing stage 11 is made finer than the grain or serration of the surface of the first grinding and polishing stage 10.
- the direction of advance first comes into engagement with the surface of the first grinding and polishing stage 10 with at least one
- FIG. 2 shows the grinding and polishing stage, the dotted surfaces 12 of the channels 8, which are initially not engaged in a grinding and polishing process, and the exposed area of the base body 2 shown as a white surface.
- disk-shaped tool 1 according to the invention in particular a separating Grinding-polishing wheel, can with a higher or a lower number of different grinding and
- FIG. 3 shows, in a side view of a pane flank 4, a representation of the layer structure of a particular one
- disc-shaped tool 1 in particular a cutting-grinding-polishing disc.
- Polishing agent layers 20, 21, 22 applied in an abrasive paper-like form by gluing are also conceivable
- disc-shaped tools 1 in particular of cutting-grinding-polishing discs, in which the structure of the grinding and
- Process for example by spraying.
- the dotted areas indicate a
- the areas alternating with continuous and dashed lines indicate two-layer layers 31 of a first grinding layer 20 and a second
- FIG. 4 shows a front view, not to scale, of the outer circumferential area 3 with the not visible
- Cutting edges 5 shown a base body 2 with the structure of the grinding and polishing layers 20, 21, 22 of a disc-shaped tool 1 according to the invention, in particular a cutting-grinding-polishing disc.
- One-layer layers 30, two-layer layers 31 and three-layer layers 32 of the abrasive and polishing agent structure are clearly shown.
- the radial VR feed direction and the axial VA feed direction are illustrated by arrows.
- Figure 5 shows an exploded view of a
- Disc-shaped tool 1 in particular a cutting-grinding-polishing disc in a side view, a particularly preferred embodiment with an optical one
- the grinding and polishing agent layers are formed by segments of different colors.
- the segments are one above the other and side by side in such a manner in the axial direction of the base body 2
- Base body 2 arranged that progressively
- Recognize wear and the remaining service life can be determined using the recognizable color codes 41, 42, 43, 44.
- the grinding and polishing elements with a color code one 41 form the abrasive and polishing agent layer closest to the base body of the surfaces of the grinding and polishing stage two 11 described in more detail in FIG. 2.
- the grinding and polishing elements with the color code one 41 are on the base body 2
- a color code four 44 is provided to evaluate the areas of the grinding and polishing stage one 10. Takes up the usable area of the, for example due to the radial wear of a base body 2 made of composite material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Milling Processes (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG11202105026RA SG11202105026RA (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining workpieces, cutting device and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece |
PL19827595.0T PL3826807T3 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
ES19827595T ES2920478T3 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disc, and procedure for machining work pieces |
US17/293,747 US20220009014A1 (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining workpieces, cutting device, and use of a cutting, grinding and polishing disk to produce a surf ace structure on a workpiece |
HRP20220779TT HRP20220779T1 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
SI201930265T SI3826807T1 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
CA3119695A CA3119695A1 (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining workpieces, cutting device and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece |
BR112021009305-2A BR112021009305A2 (en) | 2018-11-13 | 2019-11-13 | disc-shaped tool and method for machining parts, cutting device and using a cutting, grinding and polishing disc to produce a surface structure on a part |
EA202191191A EA202191191A1 (en) | 2018-11-13 | 2019-11-13 | DISC TOOL AND METHOD FOR PROCESSING BILLS, CUTTING DEVICE AND APPLICATION OF CUTTING GRINDING AND POLISHING DISC TO CREATE SURFACE STRUCTURE ON BILLET |
CN201980081854.8A CN113613840A (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining a workpiece, cutting device and use of a cutting, grinding and polishing disk for producing a surface structure on a workpiece |
RS20220568A RS63356B1 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
MX2021005602A MX2021005602A (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining workpieces, cutting device, and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece. |
EP19827595.0A EP3826807B8 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
JP2021526454A JP2022507483A (en) | 2018-11-13 | 2019-11-13 | Disc-shaped tools and methods for machining workpieces, cutting devices, and the use of cutting, grinding, and polishing discs to generate surface structures on workpieces. |
DK19827595.0T DK3826807T3 (en) | 2018-11-13 | 2019-11-13 | CUTTING, GRINDING AND POLISHING DISC AND CUTTING DEVICE AS WELL AS PROCEDURE |
AU2019379955A AU2019379955A1 (en) | 2018-11-13 | 2019-11-13 | Cutting, grinding and polishing disk, and method for machining workpieces |
ZA2021/03781A ZA202103781B (en) | 2018-11-13 | 2021-06-02 | Cutting, grinding and polishing disk, and method for machining workpieces |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018008920.8A DE102018008920A1 (en) | 2018-11-13 | 2018-11-13 | Disc-shaped tool and method for machining workpieces, cutting device and use of a cutting, grinding and polishing disc to produce a surface structure on a workpiece |
DE102018008920.8 | 2018-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2020098852A2 true WO2020098852A2 (en) | 2020-05-22 |
WO2020098852A3 WO2020098852A3 (en) | 2020-07-09 |
Family
ID=69005173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2019/000296 WO2020098852A2 (en) | 2018-11-13 | 2019-11-13 | Disk-shaped tool and method for machining workpieces, cutting device, and use of a cutting, grinding and polishing disk to produce a surface structure on a workpiece |
Country Status (21)
Country | Link |
---|---|
US (1) | US20220009014A1 (en) |
EP (1) | EP3826807B8 (en) |
JP (1) | JP2022507483A (en) |
CN (1) | CN113613840A (en) |
AU (1) | AU2019379955A1 (en) |
BR (1) | BR112021009305A2 (en) |
CA (1) | CA3119695A1 (en) |
CL (1) | CL2021001262A1 (en) |
DE (1) | DE102018008920A1 (en) |
DK (1) | DK3826807T3 (en) |
EA (1) | EA202191191A1 (en) |
ES (1) | ES2920478T3 (en) |
HR (1) | HRP20220779T1 (en) |
HU (1) | HUE059056T2 (en) |
MX (1) | MX2021005602A (en) |
PL (1) | PL3826807T3 (en) |
RS (1) | RS63356B1 (en) |
SG (1) | SG11202105026RA (en) |
SI (1) | SI3826807T1 (en) |
WO (1) | WO2020098852A2 (en) |
ZA (1) | ZA202103781B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114224537B (en) * | 2021-12-31 | 2024-02-13 | 东莞市爱嘉义齿有限公司 | Processing technology of durable clean denture |
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US6632131B1 (en) | 2000-02-03 | 2003-10-14 | Terry L. Buchholz | Combination rotary cutting and sanding blade |
WO2011029106A2 (en) | 2010-12-16 | 2011-03-10 | Saint-Gobain Abrasives, Inc. | A slot wear indicator for a grinding tool |
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-
2018
- 2018-11-13 DE DE102018008920.8A patent/DE102018008920A1/en not_active Withdrawn
-
2019
- 2019-11-13 HU HUE19827595A patent/HUE059056T2/en unknown
- 2019-11-13 DK DK19827595.0T patent/DK3826807T3/en active
- 2019-11-13 SG SG11202105026RA patent/SG11202105026RA/en unknown
- 2019-11-13 SI SI201930265T patent/SI3826807T1/en unknown
- 2019-11-13 JP JP2021526454A patent/JP2022507483A/en active Pending
- 2019-11-13 US US17/293,747 patent/US20220009014A1/en active Pending
- 2019-11-13 HR HRP20220779TT patent/HRP20220779T1/en unknown
- 2019-11-13 CN CN201980081854.8A patent/CN113613840A/en active Pending
- 2019-11-13 AU AU2019379955A patent/AU2019379955A1/en active Pending
- 2019-11-13 RS RS20220568A patent/RS63356B1/en unknown
- 2019-11-13 PL PL19827595.0T patent/PL3826807T3/en unknown
- 2019-11-13 ES ES19827595T patent/ES2920478T3/en active Active
- 2019-11-13 CA CA3119695A patent/CA3119695A1/en active Pending
- 2019-11-13 MX MX2021005602A patent/MX2021005602A/en unknown
- 2019-11-13 EA EA202191191A patent/EA202191191A1/en unknown
- 2019-11-13 EP EP19827595.0A patent/EP3826807B8/en active Active
- 2019-11-13 WO PCT/DE2019/000296 patent/WO2020098852A2/en unknown
- 2019-11-13 BR BR112021009305-2A patent/BR112021009305A2/en active IP Right Grant
-
2021
- 2021-05-13 CL CL2021001262A patent/CL2021001262A1/en unknown
- 2021-06-02 ZA ZA2021/03781A patent/ZA202103781B/en unknown
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DE69611764T2 (en) | 1995-12-08 | 2001-09-20 | Norton Co | IMPROVEMENTS FOR GRINDING WHEELS |
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WO2011029106A2 (en) | 2010-12-16 | 2011-03-10 | Saint-Gobain Abrasives, Inc. | A slot wear indicator for a grinding tool |
DE102015223428B4 (en) | 2015-11-26 | 2017-06-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Cut-off wheel, use of a cut-off wheel and method for cutting a workpiece by means of cut-off grinding |
DE202016102268U1 (en) | 2016-02-09 | 2016-05-17 | Atm Gmbh | Ripper |
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DE102018008920A1 (en) | 2020-05-14 |
DK3826807T3 (en) | 2022-06-27 |
JP2022507483A (en) | 2022-01-18 |
WO2020098852A3 (en) | 2020-07-09 |
HRP20220779T1 (en) | 2022-10-14 |
EP3826807A2 (en) | 2021-06-02 |
CL2021001262A1 (en) | 2021-12-24 |
BR112021009305A2 (en) | 2021-08-10 |
MX2021005602A (en) | 2021-09-21 |
SI3826807T1 (en) | 2022-08-31 |
PL3826807T3 (en) | 2022-08-01 |
US20220009014A1 (en) | 2022-01-13 |
SG11202105026RA (en) | 2021-06-29 |
EP3826807B8 (en) | 2022-05-18 |
AU2019379955A1 (en) | 2021-06-17 |
EP3826807B1 (en) | 2022-04-13 |
HUE059056T2 (en) | 2022-10-28 |
EA202191191A1 (en) | 2021-10-12 |
ES2920478T3 (en) | 2022-08-04 |
ZA202103781B (en) | 2022-04-28 |
CN113613840A (en) | 2021-11-05 |
CA3119695A1 (en) | 2020-05-22 |
RS63356B1 (en) | 2022-07-29 |
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