EP3826807B1 - Disque à séparer, à poncer et à polir, dispositif de séparation et procédé d'usinage de pièces - Google Patents

Disque à séparer, à poncer et à polir, dispositif de séparation et procédé d'usinage de pièces Download PDF

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Publication number
EP3826807B1
EP3826807B1 EP19827595.0A EP19827595A EP3826807B1 EP 3826807 B1 EP3826807 B1 EP 3826807B1 EP 19827595 A EP19827595 A EP 19827595A EP 3826807 B1 EP3826807 B1 EP 3826807B1
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EP
European Patent Office
Prior art keywords
grinding
separating
disc
polishing
radial
Prior art date
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Application number
EP19827595.0A
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German (de)
English (en)
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EP3826807B8 (fr
EP3826807A2 (fr
Inventor
Armin Wittmann
Jonas Ferring
Tobias EHLENZ
Dietmar Robert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Klingspor AG
Original Assignee
Hochschule Trier
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hochschule Trier filed Critical Hochschule Trier
Priority to SI201930265T priority Critical patent/SI3826807T1/sl
Priority to RS20220568A priority patent/RS63356B1/sr
Priority to HRP20220779TT priority patent/HRP20220779T1/hr
Publication of EP3826807A2 publication Critical patent/EP3826807A2/fr
Publication of EP3826807B1 publication Critical patent/EP3826807B1/fr
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Publication of EP3826807B8 publication Critical patent/EP3826807B8/fr
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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 disc-shaped cutting tool and a radial cutting method for the rotating cutting of workpieces, as specified in claims 1 and 10, in particular for the simultaneous multiple machining of workpieces.
  • the resulting cut surfaces have surface characteristics caused by the cutting or separating process.
  • Separating and cutting tools are mainly designed for high cutting performance and, due to the correspondingly coarse cutting edges, often produce cut surfaces with a high level of surface roughness, burrs and temperature-related material damage.
  • the surface quality of a cut surface resulting from a cutting or separating process does not meet the requirements in laboratories where the cut surface produced as a result of the process is to be examined more closely.
  • clean, burr-free cut surfaces are required, for example for further processing of separate workpieces, which should be as free as possible from damage of any kind.
  • One Post-processing of the relevant cut surface for example by grinding or polishing, is usually still necessary. Individual influences on sample preparation are now almost unavoidable.
  • grinding possible processing steps for increasing the surface quality in an axial working direction of a disk-shaped rotating tool
  • cutting and severing operations in a radial working direction are referred to as "severing”.
  • cutting and grinding processes are carried out with different tools in successive operations, because cutting and grinding processes each place different demands on the tool design and the removal capacity of the tool used. Special machine tools are usually used for each process. Workpiece conversions or manual grinding processes occur.
  • the tool dips into the workpiece to be machined in a radial working direction, including the one mentioned above U.S. 4,989,372 .
  • a small thickness in the axial direction is aimed at with rotating cutting tools in order to keep the material removal required to carry out the cutting cut low.
  • rotating grinding tools In contrast to rotating cutting tools, rotating grinding tools usually have a greater thickness in the axial direction. In this way, the axial forces occurring during grinding processes with the side surfaces of the tool are absorbed and radial forces during grinding processes Working direction achieves the largest possible contact between the tool and the workpiece surface.
  • DE 696 11 764 T2 called for the design of disc-shaped grinding tools.
  • the degree of wear on the tool is usually checked. This check is often purely visual and the result is subjectively limited to the impression of the examiner. If a tool reaches its wear limit in a running machining process, the process must be interrupted and restarted with a new tool. In addition to the additional time required for the tool change, the tool change in the machining process can lead to an uneven work result. This is problematic when used for sample preparation and later surface analysis on the workpiece.
  • the DE 10 2015 223 428 B4 proposes a disk-shaped separating tool for performing gentle separating cuts, particularly suitable for separating composite materials with poor thermal conductivity.
  • a cutting gap is produced, which is then widened by convex secondary cutting edges, which are arranged adjacent to the main cutting edge and act partly radially and partly axially.
  • the high temperatures that occur when material is removed are thus distributed over a larger area both in the tool and in the workpiece.
  • Workpiece material in the area of the cut surfaces which has undergone temperature-related material-damaging structural changes during the production of the cutting gap, is at least partially removed during the subsequent widening of the cutting gap.
  • Invention Cut surfaces with little pronounced temperature damage is reaches the in the DE 10 2015 223 428 B4 revealed Invention Cut surfaces with little pronounced temperature damage.
  • a saw blade with geometrically defined, alternately set saw teeth on its outer circumference is known, which is equipped with guide elements on its side surfaces.
  • the guide elements do not protrude axially beyond the width of the separating cut. Consequently, the guide elements cannot have a grinding effect in the axial direction, but rather are intended to remove splinters that are torn out of the workpiece body by the cutting edges but are still attached to the workpiece and protrude into the cutting cut.
  • WO 2011/029106A2 describes a wear indicator for rotating material-removing cutting or grinding tools, which provides information on the radial or axial wear of the tool via depressions or elevations integrated into the tool.
  • the present invention also has the task of providing a tool or a processing method which is commercially available transportable and stationary cutting and grinding machines and with which it is possible to efficiently produce a workpiece with a defined surface characteristic through a cutting process.
  • the processing quality should be assured. Generated surfaces should be displayed in the same way over and over again as reproducibly as possible.
  • a further object of the invention is to provide a tool which, if possible, contains a wear indicator that allows the tool user to conclude before starting a work step whether the work step in question can be carried out completely within the remaining useful capacity of the tool.
  • the disc-shaped cutting tool according to the invention is intended for rotary cutting of a stationary clamped workpiece that is at least roughly elongated along an axis of rotation, with radial feed at least roughly in the direction of the clamped workpiece running orthogonally with respect to this axis of rotation.
  • the cutting tool does not only have cutting edges in a radially outer peripheral area of the cutting tool.
  • At least one of two opposing wheel flanks is/are provided with at least one grinding agent and optionally also a polishing agent in a radially inner area with respect to the peripheral area.
  • the parting tool is therefore designed as a parting-grinding-polishing wheel.
  • a disk-shaped tool according to the invention is advantageously intended for use in commercially available mobile or stationary cutting and grinding machines. Use in a testing laboratory for electrical cables has saved considerable effort and improved the validity of studies.
  • a separating device is also suitable for a method for processing test workpieces, namely by means of a disk-shaped separating tool. During an exclusively at least roughly radial movement of the tool simultaneously and/or immediately, cutting, grinding and optionally also polishing are carried out in succession, namely during a single infeed instruction from a machine control system.
  • a wear indicator shows a remaining usable capacity, in particular a remaining cut volume and/or a remaining usable time.
  • the display particularly preferably reacts autonomously to mechanical wear of the tool that exceeds a certain level, in particular when a different color appears or becomes recognizable.
  • the design of the tool already takes into account loads that affect the quality of the workpiece, such as temperature and tool fatigue.
  • the wear indicator now even provides information about the process parameters to be selected, such as tool speed and infeed speed.
  • the invention avoids carrying out the “cutting”, “grinding” and, if necessary, “polishing” operations separately. Set-up work and thus machine and personnel costs are saved. Set-up work on machines that work with material-removing processes is time-consuming and personnel-intensive, since, for example, all mounting surfaces for workpieces and tools have to be cleaned very thoroughly to remove processing residues such as material chips and cooling lubricants with each change-over. Set-up work on machine tools usually results in the positions of the workpiece to be machined and possibly also the tool being shifted relative to the machine-internal coordinate system and having to be found again. Set-up, re-clamping and programming work on machine tools - especially with regard to uses according to the invention - involve a certain potential for errors due to the complex work processes.
  • the cutting-off-grinding-polishing wheel has a disc-shaped base body, which preferably consists of a composite material, for example using a synthetic resin matrix, similar to a cutting-off wheel.
  • the cutting-grinding-polishing wheel particularly preferably comprises at least one area with cutting edges that is effective in the radial working direction and at least one grinding and polishing area that is effective in the axial working direction.
  • the Cutting edges that are used are geometrically undefined, for example as granulated abrasives.
  • the cutting-grinding-polishing disc has a central hole in the axial direction for attachment to the usual standardized tool holders of mobile and stationary cutting-off and grinding machines.
  • the feed movement of the cutting-off-grinding-polishing wheel in the radial working direction to carry out the cutting cut can be done mechanically or manually, depending on the design of the machine technology used.
  • the cutting-off-grinding-polishing wheel is provided with grinding and polishing means on at least one side of the wheel.
  • the grinding and polishing media are finer-grained or serrated or designed for less material removal than the separating media, in order to be able to achieve the intended improvement in the surface quality of the cut surfaces in the axial direction, while at the same time being able to efficiently cut off in the radial direction.
  • the tool according to the invention ensures its usefulness due to 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 infeed movement, several specific and purposefully utilized factors lead to a defined deflection of the disc in both axial directions without the cutting tool itself moving axially in its center . This leads to a widening of the kerf, which is given as an example at 10% for this explanation. The cutting gap is therefore 10% wider than the radially outer geometry of the cutting tool would normally dictate. In this order The grinding/polishing layers applied to the sides of the disc have a 10% wider cutting gap and are therefore not relevant to the separation.
  • This axial deflection of the disc, and thus the widening of the cutting gap, is made possible by certain properties of the disc.
  • the combination of material properties and geometric properties, such as the wheel width, give the cutting wheel a certain degree of flexibility. This flexibility allows the process forces that are effective during the cutting process to lead to an axial deflection of the wheel in both directions of up to approximately 5% of the wheel width.
  • the operating speed of the cutting wheel has a value that corresponds to a multiple of one of the natural frequencies of the cutting wheel.
  • the cutting disc is excited to oscillate axially, the amplitude of which is approximately up to 5% of the thickness of the disc.
  • the cutting disc is not flat, but has a runout of up to 10% of the disc width.
  • This blow also supports the widening of the cutting gap.
  • the effectiveness of these effects can be supported with a grinding/polishing layer that widens towards the center of the disc.
  • a radial consumption of the tool according to the invention is basically possible up to the tool holder of the operating machine. This leads to more efficient use of the tool and enables the use of wear-prone bonding materials for the abrasive grains responsible for the cutting process. This enables a precise and yet efficient cut-off grind.
  • the described axial deflection of the tool according to the invention also leads to an infeed of the grinding/polishing layers applied to the cutting wheel sides in the axial direction to the cut surfaces of the workpiece.
  • This infeed ensures clean grinding/polishing of the cut surfaces, regardless of the degree of wear of the grinding/polishing surfaces.
  • No machine control is required for the grinding/polishing process of the cut surfaces, which enables the axial infeed of the grinding/polishing elements to the cut surfaces.
  • the machine only has to perform a radial feed.
  • a preferably provided thickening of the flanks of the disk-shaped tool according to the invention towards the center has a supporting effect in relation to the axial movement of the grinding and polishing means towards the cut surfaces to be machined.
  • the thickening is preferably designed in one or more gradations in order to keep the grinding and polishing surfaces parallel to the cut surfaces of the separating cut.
  • the thickening can be implemented in one or more layers.
  • the tool according to the invention dips into the workpiece and when the tool according to the invention dips into a planar contact of the grinding and polishing surfaces with at least one cut surface of the workpiece.
  • the cutting-off-grinding-polishing wheel according to the invention is provided with at least one channel along at least one side flank for improved removal of chips, broken-off grinding material and/or cooling lubricant.
  • the at least one grinding and polishing area present at least on one side of the wheel is designed without cooling channels.
  • the grinding and polishing material becomes finer towards the middle of the wheel, in order to bring increasingly finer grinding and polishing agents into action with increasing immersion depth of the tool in the workpiece and thus in one operation to achieve the highest possible surface quality.
  • the cutting-off-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, as in FIGS Figures 2 to 5 shown, has a multi-layer structure, with the number of layers increasing towards the center of the pane.
  • the individual layers are marked with individual color codes, which indicate wear in both the radial and axial directions. Based on the visible color codes, the current degree of wear and thus also the remaining useful capacity of the cutting-off-grinding-polishing wheel can be reliably determined.
  • the wear indicator is designed in one layer, so that wear of the grinding layer on the disc side the differently colored carrier layer underneath, which is responsible for the separation, comes to light and thus visually indicates the wear.
  • This single layer abrasive layer on the side of the disc can also be segmented towards the center of the disc due to a different grit or simply a different colour. If radial wear then reaches such a specific segment, conclusions can also be drawn about the state of wear. In this way, wear can be visualized in the radial and axial direction.
  • figure 1 shows a particularly preferred embodiment of a cutting-off-grinding-polishing wheel 1 according to the invention in a side view.
  • a basic body 2 is shown, preferably made of a composite material which, similar to a commercially available cutting wheel, already contains a separating agent of a defined grain size and thus on an outer peripheral area 3 has geometrically undefined cutting edges 5.
  • a mounting hole 7 is provided centrally in the axial direction in the base body 2 for mounting the cutting-off-grinding-polishing wheel 1 in standardized tool holders of stationary or mobile cutting-off and grinding machines.
  • grinding and polishing surfaces 6 are attached on one side to a wheel flank 4 of the base body 2 . These grinding and polishing surfaces 6 allow the cut surface of a workpiece to be reworked simultaneously with the execution of the separating cut.
  • the separating cut is in one in the figures 2 and 4 shown radial working direction VR by means of the cutting edges 5 on the outer peripheral area 3 of the cutting-off-grinding-polishing wheel 1 .
  • the feed in a radial working direction VR can be done manually or mechanically, depending on the design of the cutting or grinding machine used.
  • channels 8 for cutting or Coolant removal from the cutting, grinding and polishing area In a first particularly preferred embodiment, channels 8 for cutting or Coolant removal from the cutting, grinding and polishing area.
  • the channels 8 run along the wheel flank 4 in the radial direction to the outer peripheral region 3.
  • the channels 8 are preferably inclined counter to the direction of rotation D in order to prevent the channels 8 from clogging during a To avoid movement in the radial feed direction VR or at least to reduce it.
  • the cutting-off-grinding-polishing wheel 1 is designed without channels 8 .
  • the cutting-off-grinding-polishing wheel 1 is designed with single-layer grinding/polishing elements, with and without channels.
  • figure 2 shows a side view of a wheel flank 4 showing the grinding stages of a cutting-off-polishing wheel 1 according to the invention.
  • the grinding and polishing means are finer-grained or serrated or designed for less material removal than the cutting edges 5 in order to be able to achieve the intended improvement in the surface quality of the cut surfaces.
  • Graduations 40 which delimit the area of a first grinding and polishing stage 10 and the area of a second grinding and polishing stage 11 are clearly shown.
  • the grit or toothing of the cutting edges 5 is coarser than the grit or toothing of the surfaces of the grinding and polishing stages 10, 11.
  • the grit or toothing of the surface is particularly preferred of the second grinding and polishing stage 11 is finer than the grit or toothing of the surface of the first grinding and polishing stage 10.
  • the surface of the first grinding and polishing stage 10 first comes into contact with at least one cut surface of the separating cut and carries out post-processing of the at least one separating cut surface.
  • the surface of the second grinding and polishing stage 11 then comes into action and completes the grinding and polishing process of at least one surface of the cutting cut to the desired surface quality.
  • 11 shows figure 2 the first surfaces 12 of the channels 8 shown in dotted form that do not come into contact with a grinding and polishing process and the uncovered area of the base body 2 shown as a white area.
  • cutting-off-grinding-polishing wheel 1 can be designed with a higher or also a lower number of different grinding and polishing stages.
  • figure 3 shows a side view of a wheel flank 4 showing the layer structure of a particularly preferred embodiment of the cutting-off-grinding-polishing wheel 1.
  • a total of 3 grinding and polishing agent layers 20, 21, 22 are applied to a base body 2 in a form similar to sandpaper by gluing.
  • Alternative embodiments of cutting-off-grinding-polishing wheels 1 according to the invention are also conceivable, in which the structure of the grinding and polishing agent layers 20, 21, 22 is realized by means of a different method, for example by spraying.
  • the dotted areas indicate a single layer 30 of a first grinding layer 20 applied to the base body 2.
  • the areas designed alternately with solid and dashed lines characterize two-layer layers 31 of a first grinding layer 20 and a second grinding layer 21 applied to the base body 2.
  • the areas hatched with solid lines indicate three-layer layers 32, consisting of three grinding layers 20, 21, 22.
  • figure 4 shows a front view, not to scale, of the outer peripheral region 3 with the cutting edges 5 not shown, a base body 2 with the structure of the grinding and polishing layers 20, 21, 22 of a cutting-grinding-polishing wheel 1 according to the invention.
  • Single-layer layers 30 are shown, two-layer layers 31 and three-layer layers 32 of the grinding and polishing compound construction.
  • the layers 30, 31, 32 can be seen separated from one another by gradations 40.
  • figure 5 shows an exploded drawing of a cutting-off-grinding-polishing wheel 1 according to the invention in a side view of a particularly preferred embodiment with an optical wear indicator.
  • the grinding and polishing agent layers are formed by differently colored segments.
  • the segments are in axial Direction of the base body 2 in such a way above and next to each other on a base body 2 that recognize progressive wear, and the remaining service life based on the recognizable color codes 41, 42, 43, 44 can be determined.
  • the grinding and polishing elements with a color code of one 41 form the grinding and polishing agent layer closest to the base body in figure 2 surfaces of grinding and polishing stage two 11 described in more detail.
  • the grinding and polishing elements with the color code one 41 are applied to the base body 2 in such a way that gaps between the elements allow the formation of channels 8 in the grinding and polishing agent layers 20, 21, 22 favor.
  • Elements with a color code two 42 and a color code three 43 are arranged one after the other in the axial direction of the base body 2 on the grinding and polishing elements of the color code one 41 .
  • a wear progression of the surfaces of the grinding and polishing stage two 11 can thus be read using the color code one 41, the color code two 42 and the color code three 43. If color code one 41 becomes visible, the surfaces of the grinding and polishing stage two are approaching the wear limit.
  • a color code four 44 is provided to evaluate the grinding and polishing level one 10 surfaces. If, for example due to radial wear of a base body 2 made of composite material, the usable area of grinding step one decreases, this decrease can be recognized and evaluated using color code four 44 . Wear of the surfaces of the grinding step one 10 in an axial direction is recognized by the fact that instead of the color code four 44 the coloring of the base body 2 appears.
  • the dimensions of the cutting, grinding and polishing elements are matched to one another in such a way that they can be replaced as soon as possible.

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  • 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)

Claims (16)

  1. Outil de séparation en forme de disque, pour la coupe rotative (D) d'une pièce à usiner allongée et fixe, avec une avance exclusivement radiale (VR) de l'outil de séparation par rapport à son axe de rotation, au moins approximativement en direction de la pièce à usiner serrée, avec
    1.1 des arêtes de coupe (5) géométriquement indéfinies dans une zone périphérique radialement extérieure (3) de l'outil de séparation,
    1.2 deux flancs de disque (4) se faisant face dans une zone radialement intérieure par rapport à la zone périphérique (3), et
    1.3 radialement à l'intérieur avec une ouverture de fixation axiale (7)
    caractérisé en ce que
    1.4 l'outil de séparation est conçu comme un disque de séparation-meulage-polissage (1), c'est-à-dire
    1.4.1 pour une coupe rotative (D) de la pièce serrée s'étendant au moins sensiblement le long de son axe de rotation orthogonalement à l'avance radiale (VR) au moyen des tranchants (5) disposées radialement à l'extérieur, et
    1.4.2 pour le meulage rotatif, les flancs de meule (4) étant au moins partiellement pourvus d'abrasifs et éventuellement également d'agents de polissage (6, 20, 21, 22).
  2. Outil de séparation en forme de disque selon la revendication 1,
    caractérisé en ce qu'il a une flexibilité définie et un impact défini.
  3. Outil de séparation en forme de disque selon la revendication 1 ou 2, caractérisé en ce qu'il présente un corps de base (2) en forme de disque qui est constitué d'un matériau composite, par exemple à l'aide d'une matrice en résine synthétique, ou d'un matériau composite qui contient déjà des agents de démoulage d'une granulométrie définie.
  4. Outil de séparation en forme de disque selon une des revendications précédente,
    caractérisé par au moins une zone active dans la direction de travail radiale (VR) avec les tranchants (5) et au moins une zone de meulage active dans la direction de travail axiale (VA) et éventuellement aussi une zone de polissage (6), des liants de préférence soumis à l'usure des grains abrasifs responsables du processus de séparation étant utilisés comme tranchants (5) et leur usure radiale est en principe possible jusqu'au porte-outil d'une machine en marche.
  5. Outil de séparation en forme de disque selon une des revendications précédente,
    caractérisé en ce que les moyens de meulage et éventuellement les agents de polissage (6) consistent en des tranchants géométriquement indéfinis, les moyens de meulage et éventuellement les agents de polissage (6) étant à grains plus fins ou dentelés ou conçus pour un enlèvement de matière moindre que les moyens de séparation (5) et/ou en ce qu'au moins l'un des deux flancs de disque (4) est estampé une ou plusieurs fois par rapport à l'épaisseur de matière dans la zone périphérique radialement extérieure (3), notamment par des agents abrasifs et éventuellement aussi des agents de polissage (6).
  6. Outil de séparation en forme de disque selon une des revendications précédente,
    caractérisé en ce que sur au moins l'un des flancs de roue (4) sont agencées de radialement à l'extérieur vers radialement à l'intérieur des surfaces initialement de meulage et au moins radialement à l'intérieur de plus en plus ou finalement radialement à l'intérieur exclusivement des surfaces de polissage.
  7. Outil de séparation en forme de disque selon une des revendications précédente,
    caractérisé en ce que dans la zone périphérique (3) et sur au moins l'un des flancs de meule (4) différentes arêtes de coupe d'outils géométriquement indéfinies et/ou un matériau avec des granulométries différentes est/sont disposé(s), en particulier avec un matériau de meulage et de polissage qui devient plus fin vers le centre de la roue.
  8. Outil de séparation en forme de disque selon une des revendications précédente,
    caractérisé en ce qu' il comporte au moins un indicateur d'usure (41 à 44).
  9. Outil de coupe en forme de disque selon la revendication 8,
    caractérisé en ce que l'indicateur d'usure (41 à 44) réagit de manière autonome à l'usure mécanique de l'outil de coupe, en particulier une couleur différente apparaît ou devient reconnaissable, particulièrement de préférence radialement et axialement à chaque fois détectable.
  10. Procédé de coupe radiale pour l'usinage de pièces allongées axialement, utilisant un outil de coupe en forme de disque avec des arêtes de coupe géométriquement indéfinies (5),
    caractérisé en ce qu' il est réalisé au moyen d'un outil de coupe en forme de disque selon l'une des revendications 1 à 9 et une pièce serrée est coupée et meulée et/ou polie au cours d'un seul mouvement d'avance purement radial de l'outil de coupe, et , éventuellement, une déviation latérale de l'outil de séparation rotatif axialement stationnaire, avec la au moins une surface de meulage et de polissage (6, 20, 21, 22) fixée sur le côté, l'amène en contact actif axial de meulage et/ou de polissage avec le pièce à usiner.
  11. Procédé de séparation radiale selon la revendication 10,
    caractérisé en ce que le débattement latéral de l'outil de coupe en rotation est obtenu par une souplesse et un impact défini de l'outil de coupe, les propriétés géométriques et cinématiques combinées de l'outil de coupe conduisant à un débattement latéral de l'outil de coupe dès que l'outil de coupe tourne à la vitesse de travail avec sa circonférence extérieure (3) ou son tranchant (5) touche une pièce dans la direction d'avance radiale (VR).
  12. Procédé de séparation radiale selon la revendication 11, caractérisé en ce que la déviation latérale totale est d'environ 10 % de la largeur du disque de séparation-meulage-polissage(1).
  13. Procédé de séparation radiale selon l'une des revendications 10 à 12,
    caractérisé en ce que la vitesse de fonctionnement du disque de séparation-meulage-polissage (1) a une valeur qui correspond à un multiple de l'une des fréquences propres du disque de séparation-meulage-polissage (1).
  14. Procédé de séparation radiale selon les revendications 10 à 13, caractérisé en ce que l'épaississement des flancs de disque(4) favorise l'engagement axial d'au moins un agent abrasif et de polissage (6, 20, 21, 22).
  15. Procédé de séparation radiale selon l'une des revendications 10 à 14,
    caractérisé en ce qu'un indicateur d'usure (41 à 44) indique une capacité utile résiduelle, en particulier un volume de coupe résiduel et/ou une durée utile résiduelle.
  16. Procédé de séparation radiale selon la revendication 15, caractérisé en ce que l'indicateur d'usure réagit de manière autonome à l'usure mécanique de l'outil, en particulier une couleur différente apparaît ou devient reconnaissable.
EP19827595.0A 2018-11-13 2019-11-13 Disque à séparer, à poncer et à polir, dispositif de séparation et procédé d'usinage de pièces Active EP3826807B8 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201930265T SI3826807T1 (sl) 2018-11-13 2019-11-13 Odrezovalna, brusilna in polirna plošča, odrezovalna naprava in postopek za obdelavo obdelovancev
RS20220568A RS63356B1 (sr) 2018-11-13 2019-11-13 Disk za sečenje, brušenje i poliranje i postupak za obradu radnih komada
HRP20220779TT HRP20220779T1 (hr) 2018-11-13 2019-11-13 Disk za rezanje, brušenje i poliranje i postupak za obradu radnih komada

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018008920.8A DE102018008920A1 (de) 2018-11-13 2018-11-13 Scheibenförmiges Werkzeug und Verfahren zur Bearbeitung von Werkstücken, Trennvorrichtung sowie Verwendung einer Trenn-, Schleif- und Polierscheibe zum Erzeugen einer Oberflächenstruktur auf einem Werkstück
PCT/DE2019/000296 WO2020098852A2 (fr) 2018-11-13 2019-11-13 Outil en forme de disque et procédé d'usinage de pièces, dispositif de séparation ainsi qu'utilisation d'un disque à séparer, à poncer et à polir pour la production d'une structure de surface sur une pièce

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EP3826807A2 EP3826807A2 (fr) 2021-06-02
EP3826807B1 true EP3826807B1 (fr) 2022-04-13
EP3826807B8 EP3826807B8 (fr) 2022-05-18

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US (1) US20220009014A1 (fr)
EP (1) EP3826807B8 (fr)
JP (1) JP2022507483A (fr)
CN (1) CN113613840A (fr)
AU (1) AU2019379955A1 (fr)
CA (1) CA3119695A1 (fr)
CL (1) CL2021001262A1 (fr)
DE (1) DE102018008920A1 (fr)
DK (1) DK3826807T3 (fr)
EA (1) EA202191191A1 (fr)
ES (1) ES2920478T3 (fr)
HR (1) HRP20220779T1 (fr)
HU (1) HUE059056T2 (fr)
MX (1) MX2021005602A (fr)
PL (1) PL3826807T3 (fr)
RS (1) RS63356B1 (fr)
SG (1) SG11202105026RA (fr)
SI (1) SI3826807T1 (fr)
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CN114224537B (zh) * 2021-12-31 2024-02-13 东莞市爱嘉义齿有限公司 一种耐用洁净型义齿的加工工艺

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ES2920478T3 (es) 2022-08-04
BR112021009305A2 (pt) 2021-08-10
SG11202105026RA (en) 2021-06-29
AU2019379955A1 (en) 2021-06-17
CL2021001262A1 (es) 2021-12-24
WO2020098852A2 (fr) 2020-05-22
EP3826807B8 (fr) 2022-05-18
DK3826807T3 (da) 2022-06-27
HRP20220779T1 (hr) 2022-10-14
HUE059056T2 (hu) 2022-10-28
SI3826807T1 (sl) 2022-08-31
CN113613840A (zh) 2021-11-05
EA202191191A1 (ru) 2021-10-12
MX2021005602A (es) 2021-09-21
WO2020098852A3 (fr) 2020-07-09
EP3826807A2 (fr) 2021-06-02
US20220009014A1 (en) 2022-01-13
CA3119695A1 (fr) 2020-05-22
ZA202103781B (en) 2022-04-28
RS63356B1 (sr) 2022-07-29
PL3826807T3 (pl) 2022-08-01
JP2022507483A (ja) 2022-01-18
DE102018008920A1 (de) 2020-05-14

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