EP3906134A1 - Segment de façonnage pour le façonnage à sec de bétons - Google Patents

Segment de façonnage pour le façonnage à sec de bétons

Info

Publication number
EP3906134A1
EP3906134A1 EP19828543.9A EP19828543A EP3906134A1 EP 3906134 A1 EP3906134 A1 EP 3906134A1 EP 19828543 A EP19828543 A EP 19828543A EP 3906134 A1 EP3906134 A1 EP 3906134A1
Authority
EP
European Patent Office
Prior art keywords
machining
areas
processing
segment
hard material
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP19828543.9A
Other languages
German (de)
English (en)
Inventor
Marcel Sonderegger
Cliff Toldo
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3906134A1 publication Critical patent/EP3906134A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • 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
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B28D1/146—Tools therefor

Definitions

  • the present invention relates to a machining segment for a machining tool according to the preamble of claim 1 and a machining tool with such a machining segment according to the preamble of claim 8.
  • Machining tools such as core bits, saw blades, abrasive discs and cut-off chains, comprise machining segments which are fastened to a tubular, disc-shaped or ring-shaped base body, the machining segments being connected to the base body by welding, soldering or gluing.
  • machining segments that are used for core drilling are considered as drilling segments, machining segments that are used for sawing, saw segments, machining segments that are used for ablation, as ablation segments, and machining segments that are used for abrasive cutting as abrasive cutting segments designated.
  • Machining segments for core drill bits, saw blades, abrasive discs and abrasive chains are made from a matrix material and hard material particles, whereby the hard material particles can be statistically distributed or arranged according to a defined particle pattern in the matrix material.
  • the matrix material and the hard material particles are mixed, the mixture is poured into a suitable tool shape and further processed to form the machining segment.
  • a green compact is built up in layers from matrix material, in which the hard material particles are placed according to the defined particle pattern. For machining segments that are welded to the main body of the machining tool, the structure of a machining zone and a neutral zone has proven itself.
  • the processing zone is constructed from a first matrix material and the neutral zone from a second matrix material, which is different from the first matrix material.
  • Machining tools that are designed as a core bit, saw blade, abrasive disc or abrasive chain and are intended for wet machining of concrete materials are only suitable for dry machining of concrete materials to a limited extent.
  • wet machining concrete materials an abrasive concrete sludge is created that supports the machining process and leads to self-sharpening of the machining segments during machining.
  • the matrix material is removed by the abrasive drilling mud and new hard material particles are exposed.
  • no abrasive drilling mud can form that can support the machining process.
  • the hard material particles quickly become dull and the processing rate drops. Due to the lack of concrete sludge, the matrix material wears too slowly and deeper-lying hard material particles cannot be exposed. In known machining tools for wet machining, the matrix material and the hard material particles have similar wear rates.
  • the object of the present invention is to develop a machining segment for a machining tool which enables dry machining of concrete materials, the machining segment being intended to have a high machining rate and the longest possible service life.
  • the processing segment is characterized according to the invention in that at least one of the processing areas has a protrusion Ti that is greater than 400 mhi compared to the adjacent matrix areas.
  • the upper side of the processing segment is divided into processing areas, which comprise the first hard material particles, and matrix areas, which are made up of the first matrix material.
  • the "first hard material particles” are the hard material particles of the machining segment according to the invention, which are arranged in the machining areas on the top of the machining segment.
  • a processing segment in which at least one of the processing areas comprising the first hard material particles has an overhang of more than 400 mhi compared to the matrix areas is suitable for the dry processing of concrete materials.
  • several processing areas have an overhang Ti which is greater than 400 mhi compared to the adjacent matrix areas.
  • all the processing areas have an overhang Ti which is greater than 400 mhi compared to the adjacent matrix areas.
  • the projection Ti of the machining areas of at least 400 mhi compared to the adjacent matrix areas is provided in a front area of the machining areas viewed in the direction of rotation of the machining tool.
  • the machining of concrete materials with a machining segment according to the invention takes place in the front region of the machining regions with the first hard material particles, as viewed in the direction of rotation.
  • the processing areas should have a projection of more than 400 mhi compared to the matrix areas in the front area.
  • a front overhang T fr0nt of the processing areas in the front area of the processing areas is different from a rear area of the processing areas viewed in the direction of rotation of the processing tool.
  • the processing of concrete materials with a processing segment according to the invention does not take place in the front area of the processing areas viewed in the direction of rotation with the first hard material parti. Since the rear area of the processing areas viewed in the direction of rotation has only a slight influence on the processing rate, the protrusion of the processing areas in the front area and in the rear area can be different.
  • a back protrusion T back of the processing areas in the rear area of the processing areas is particularly preferably less than 400 mhi. Since the machining of concrete materials with a machining segment according to the invention takes place in the front area of the machining areas with the first hard material particles, the rear overhang of the machining areas can take place with regard to a secure fastening of the first hard material particles in the first matrix material. In a further development of the machining segment, two hard material particles are arranged in the first matrix material, an average particle diameter of the second hard material particles being smaller than an average particle diameter of the first hard material particles.
  • the wear of the first matrix material can be reduced by means of second hard material particles.
  • the second hard material particles can be mixed as statistically distributed particles in the first matrix material or the second hard material particles are placed in the first matrix material according to a defined second particle pattern. The second hard material particles are placed in particular in the area of the side surfaces of the processing segment.
  • the invention also relates to a machining tool comprising a base body and at least one machining segment according to the invention, which is connected with an underside to the base body of the machining tool.
  • the machining tool is designed as a core drill bit with a tubular base body and a plurality of machining segments.
  • the machining segments are connected to an underside with the tubular basic body of the core bit.
  • the machining tool is designed as a core drill bit with a tubular base body and an annular machining segment.
  • the machining segment is connected with an underside to the tubular body of the core bit.
  • the machining tool is designed as an annular or disk-shaped saw blade with an annular or disk-shaped base body and a plurality of machining segments.
  • the machining segments are connected with an underside to the base or ring-shaped basic body of the ring or disc-shaped saw blade.
  • the machining tool is designed as an abrasive disk with a base body and several machining segments.
  • the machining segments are connected with an underside to the base body of the abrasive disk.
  • Embodiments Embodiments of the invention are described below with reference to the drawing. This is not necessarily to show the exemplary embodiments to scale, rather the drawing, where useful for explanation, is carried out in a schematic and / or slightly distorted form. It should be taken into account that various modifications and changes regarding the shape and the detail of an embodiment can be made without departing from the general idea of the invention.
  • the general idea of the invention is not limited to the exact form or the detail of the preferred embodiment shown and described in the following or to an object which would be restricted in comparison with the object claimed in the claims. For given measurement ranges, values within the limits mentioned should also be disclosed as limit values and be usable and claimed as required. For the sake of simplicity, the same reference numerals are used below for identical or similar parts or parts with an identical or similar function.
  • FIGN. 1A, B two variants of a machining tool designed as a core drill bit
  • FIGN. 2A, B two variants of a machining tool designed as a saw blade;
  • FIG. 3 shows a processing tool designed as a removal disk;
  • FIG. 4 a processing tool designed as a cut-off chain;
  • FIGN. 5A-C show a machining segment in a three-dimensional representation (FIG. 5A), in a view on a top side (FIG. 5B) and in a view on a side surface (FIG. 5C); and
  • FIGN. 6A-C some tool components that are used in the production of a machining segment.
  • FIGN. 1A, B show two variants of a machining tool designed as a core bit 10A, 10B.
  • core drill bit 10A is hereinafter referred to as the first core drill bit and the one shown in FIG. 1B shown core drill bit 10B referred to as the second core drill bit, in addition, the first and second core drill bits 10A, 10B are summarized under the term "core drill bit”.
  • the first core drill bit 10A comprises a plurality of machining segments 11A, a tubular body 12A and a tool holder 13A.
  • the machining segments 1 1A which are used for core drilling, are also known as drilling segments is drawn and the tubular base body 12A is also characterized as a drill shaft.
  • the drill segments 11A are firmly connected to the drill shaft 12A, for example by screwing, gluing, soldering or welding.
  • the second core drill bit 10B comprises an annular machining segment 11B, a tubular base body 12B and a tool holder 13B.
  • the ring-shaped machining segment 11 B which is used for core drilling, is also referred to as a drilling ring and the tubular base body 12B is also referred to as a drilling shaft.
  • the drill ring 11 B is firmly connected to the drill shaft 12B, for example by screwing, gluing, soldering or welding.
  • the core drill bit 10A, 10B is connected via the tool holder 13A, 13B to a core drilling device and is driven by the core drilling device in a direction of rotation 14 about an axis of rotation 15 in the drilling operation.
  • the core drill bit 10A, 10B is moved along a feed direction 16 into a workpiece to be machined, the feed direction 16 running parallel to the axis of rotation 15.
  • the core drill bit 10A, 10B produces a drill core and a borehole in the workpiece to be machined.
  • the drill shaft 12A, 12B is in the embodiment of FIGN. 1A, B are formed in one piece and the drilling segments 1 1A or the drilling ring 11 B are firmly connected to the drilling shaft 12A, 12B.
  • the drill shaft 12A, 12B can be formed in two parts from a first drill shaft section and a second drill shaft section, the drill segments 1 1A or the drill ring 11B being fixed to the first drill shaft section and the tool holder 13A, 13B firmly connected to the second drill shaft section is.
  • the first and second drill shaft sections are connected to one another via a releasable connecting device.
  • the detachable connection device is designed, for example, as a plug-and-turn connection, as described in EP 2 745 965 A1 or EP 2 745 966 A1.
  • the formation of the drill shaft as a one-part or two-part drill shaft has no influence on the structure of the drill segments 11A or the drill ring 1 1 B.
  • FIGN. 2A, B show two variants of a machining tool designed as a saw blade 20A, 20B.
  • the in FIG. 2A is shown as the first saw blade and the one shown in FIG.
  • the saw blade 20B shown in FIG. 2B is referred to as the second saw blade, and the first and second saw blades 20A, 20B are also summarized under the term “saw blade”.
  • the first saw blade 20A comprises a plurality of machining segments 21A, a disk-shaped base body 22A and a tool holder.
  • the processing segments elements 21A which are used for sawing, are also referred to as saw segments, and the disk-shaped base body 22A is also referred to as a master blade.
  • the saw segments 21A are firmly connected to the main blade 22A, for example by screwing, gluing, soldering or welding.
  • the second saw blade 20B comprises a plurality of machining segments 21B, an annular body 22B and a tool holder.
  • the processing segments 21 B which are used for sawing, are also referred to as saw segments and the ring-shaped base body 22B is also referred to as a ring.
  • the saw segments 21B are firmly connected to the ring 22B, for example by screwing, gluing, soldering or welding.
  • the saw blade 20A, 20B is connected to a saw via the tool holder and is driven by the saw in a direction of rotation 24 about an axis of rotation 25 in the sawing operation. During the rotation of the saw blade 20A, 20B about the axis of rotation 25, the saw blade 20A, 20B is moved along a feed direction, the feed direction being parallel to the longitudinal plane of the saw blade 20A, 20B. The saw blade 20A, 20B creates a saw slot in the workpiece to be machined.
  • FIG. 3 shows a processing tool designed as a removal disk 30.
  • the removal disc 30 comprises a plurality of processing segments 31, a base body 32 and a tool holder.
  • the processing segments 31, which are used for removal, are also referred to as removal segments and the disk-shaped base body 32 is also referred to as a pot.
  • the removal segments 31 are firmly connected to the pot 32, for example by screwing, gluing, soldering or welding.
  • the removal disk 30 is connected via the tool holder to a tool device and is driven in the removal mode by the tool device in a direction of rotation 34 about an axis of rotation 35. During the rotation of the removal disk 30 about the axis of rotation 35, the removal disk 30 is moved over a workpiece to be machined, the movement being perpendicular to the axis of rotation 35. The removal disk 30 removes the surface of the workpiece to be machined.
  • FIG. 4 shows a processing tool designed as a cut-off grinding chain 36.
  • the abrasive chain 36 comprises a plurality of processing segments 37, a plurality of link-shaped base bodies 38 and a plurality of connecting links 39.
  • the processing segments 37 which are used for cut-off grinding are also referred to as cut-off segments and the link-shaped base body 38 are also referred to as drive links.
  • the drive links 38 are connected via the connecting links 39.
  • the connecting links 39 are connected to the drive links 38 via rivet bolts.
  • the rivet bolts allow rotation of the drive links 38 relative to the connecting links 39 about an axis of rotation which runs through the center of the rivet bolts.
  • the machining segments 37 are firmly connected to the drive members 38, for example by screwing, gluing, soldering or welding.
  • the cut-off chain 36 is connected via a tool holder to a tool device and is driven in operation by the tool device in one direction of rotation. During the rotation of the cut-off chain 36, the cut-off chain 36 is moved into a workpiece to be machined.
  • FIGN. 5A-C show a machining segment 41 according to the invention in a three-dimensional representation (FIG. 5A), in a view on an upper side of the machining segment 41 (FIG. 5B) and in a view on a side face of the machining segment 41 (FIG. 5C).
  • the processing segment 41 corresponds in structure and composition to the processing segments 1 1A, 21 A, 21 B, 31, 37; the machining segment 11 B formed as a drilling ring differs from its machining segment 41 by its annular structure.
  • the machining segments can differ from one another in the dimensions and in the curvatures of the surfaces.
  • the basic structure of the machining segments according to the invention is explained on the basis of the machining segment 41 and applies to the machining segments 1 1A, 1 1 B of FIGN. 1A, B, for the processing segments 21 A, 21 B of FIGN. 2A, B, for the machining segment 31 of FIG. 3 and for the machining segment 37 of FIG. 4th
  • the processing segment 41 is composed of a processing zone 42 and a neutral zone 43.
  • the neutral zone 43 is required if the machining segment 41 is to be connected to the base body of a machining tool; in processing segments that are connected to the base body, for example by soldering or gluing, the neutral zone 43 can be omitted.
  • the processing zone 42 is constructed from a first matrix material 44 and first hard material particles 45 and the neutral zone 43 is constructed from a second matrix material 46 without hard material particles.
  • the machining segment 41 is connected to an underside 47 with the base body of the machining tool.
  • the underside of the machining segments is generally flat, whereas the underside of machining segments for sawing is one Has curvature in order to be able to fasten the machining segments on the curved end face of the annular or disk-shaped base body.
  • the first hard material particles 45 are arranged according to a defined particle pattern in the first matrix material 44.
  • An upper side 48 of the machining segment 41 opposite the underside 47 is subdivided into machining areas 51 and matrix areas 52 which are constructed from the first matrix material 44.
  • Each processing area 51 comprises a first hard material particle 45 and first matrix material 44, in which the first hard material particles 45 are embedded.
  • the proportion of the first matrix material 44 in the processing areas 51 can vary. It applies that the proportion of the first matrix material 44 in a processing area 51 increases when the diameter of the first hard material particle 45 decreases. In order to ensure that the first hard material particles 45 fit into the recesses of a special press ram during manufacture, the cross section of the recesses is larger than the maximum diameter of the particle distribution.
  • the processing areas 51 of the processing segment 41 have a projection Ti relative to the matrix areas 52.
  • the processing segment 41 comprises a number of 9 first hard material particles 45 and thus a number of 9 processing areas 51.
  • the number of the first hard material particles 45 and the defined particle pattern in which the first hard material particles 45 are arranged in the first matrix material 44 adapted to the requirements of the processing segment 41.
  • Bear processing tools according to the invention which are provided for the processing of concrete materials, have a defined direction of rotation.
  • a distinction can be made between a front area and a rear area of a hard material particle 45.
  • the processing segment 41 can be produced, for example, in a three-stage process: in a first stage, a green body is built up from the first matrix material 44 and the first hard material particles 45, in a second stage the green body is compressed into a compact and in a third stage it is Processed pellet under the influence of temperature or by infiltration to the processing segment 41. In the second stage, the green compact is compacted, for example, by cold pressing or hot pressing. During cold pressing, the green compact is only exposed to pressure during the Green compact during hot pressing exposed to temperatures up to approx. 200 ° C.
  • the compact is processed in the third stage, for example by sintering or hot pressing, to form the processing segment.
  • the processing areas 51 are surrounded on the top 48 of the processing segment by the matrix areas 52 and the protrusion of a processing area 51 is measured ge compared to the adjacent matrix areas. All processing areas have a projection over the adjacent matrix areas 52. At least one of the processing areas 51 has an overhang Ti which is greater than 400 mhi.
  • the direction of rotation 14 of the core bit 10A defines a front area 53 and a rear area 54.
  • the processing of concrete materials takes place in the front areas 53 of the processing areas 51 and the processing rate depends essentially on the size of the overhang of the processing areas 51 in the front loading areas 53 from.
  • the processing areas 51 have in the front area 53 a front projection T front and in the rear area 54 a rear projection T back , which correspond in the exemplary embodiment.
  • the processing areas 51 can have different front projections T fr0nt and rear projections T back .
  • FIGN. 6A-C show some tool components that are used in the manufacture of the machining segment 41 according to the invention.
  • the tool components include a lower punch 61, a die 62 and an upper punch 63, the lower temple 61 also being referred to as the first press punch and the upper punch 63 as the second press punch.
  • FIGN. 6B and 6C show the lower stamp 61 in detail.
  • the green body is built up in the die 62 with a cross-sectional area that corresponds to the desired geometry of the green body.
  • the die 62 has a first opening on the underside, into which the lower punch 61 can be moved, and a second opening on the top, into which the upper punch 63 can be moved.
  • the lower punch 61 has depressions 64 in the pressing surface, the arrangement of which corresponds to the defined particle pattern of the first hard material particles 45. The depressions 64 also determine the dimensions of the processing areas 51 on the top 48 of the processing segments.
  • the green compact is built up from top to bottom.
  • a protective layer of the first matrix material 44 is applied into the depressions of the lower punch 61.
  • a protective layer of a second matrix material can be applied into the depressions 64 of the lower punch 61, the second matrix material being different from the first matrix material 44.
  • matrix materials with different wear properties can be used.
  • the second matrix material serves to protect the lower punch 61 and should be able to be removed as quickly as possible in the finished processing segment in order to expose the first hard material particles 45 which process the substrate.
  • a second matrix material with a higher wear rate than the first matrix material 44 can be removed quickly.
  • the first hard material particles 45 are placed in the depressions 64 of the lower punch 61.
  • the first matrix material 44 is applied to the placed first hard material particles 45, the first matrix material 44 being able to be applied in one layer or in several layers.
  • the first matrix material 44 is filled into the die 62 using a filling shoe until the desired filling level is reached.
  • the finished green compact is compressed under pressure using the lower punch 61 and the upper punch 63 to form the compact.
  • coated first hard material particles can be used.
  • the first matrix material 44 can be used as the shell material for the first hard material particles 45.
  • a second matrix material can be used as the shell material for the first hard material particles 45, the second matrix material being different from the first matrix material 44.
  • matrix materials with different wear properties can be used.
  • the shell material serves to protect the lower punch 61 and should be able to be removed as quickly as possible in the finished machining segment in order to expose the first hard material particles 45 which process the concrete material.
  • Machining segments in which a protective layer of a second matrix material is applied or a second matrix material is used as a sheathing material for coated first hard material particles 45 additionally have second matrix material in the machining areas 51 or in the machining and matrix areas 51, 52.
  • second hard material particles can be added to the first matrix material 44 as statistically distributed particles, or the second hard material particles are placed in the first matrix material 44 according to a defined second particle pattern. The second hard material particles are placed in particular in the area of the side surfaces of the processing segment 41.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Segment de façonnage (41), lequel est composé d'un premier matériau de matrice (44) et de premières particules dures (45), les premières particules dures (45) étant disposées selon un motif de particules défini dans le premier matériau de matrice (44) et la surface supérieure (48) du segment de façonnage (41) étant divisée en zones de façonnage (51), lesquelles comprennent les premières particules dures (45), et des zones de matrice (52), lesquelles sont composées du premier matériau de matrice (44). Au moins une des zones de façonnage (51) présente par rapport aux zones de matrice (52) adjacentes un débordement (T1) qui est supérieur à 400 μm.
EP19828543.9A 2018-12-31 2019-12-20 Segment de façonnage pour le façonnage à sec de bétons Pending EP3906134A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18216010.1A EP3674025A1 (fr) 2018-12-31 2018-12-31 Segment de traitement pour le traitement à sec de matériaux de béton
PCT/EP2019/025466 WO2020141017A1 (fr) 2018-12-31 2019-12-20 Segment de façonnage pour le façonnage à sec de bétons

Publications (1)

Publication Number Publication Date
EP3906134A1 true EP3906134A1 (fr) 2021-11-10

Family

ID=64949117

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18216010.1A Withdrawn EP3674025A1 (fr) 2018-12-31 2018-12-31 Segment de traitement pour le traitement à sec de matériaux de béton
EP19828543.9A Pending EP3906134A1 (fr) 2018-12-31 2019-12-20 Segment de façonnage pour le façonnage à sec de bétons

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18216010.1A Withdrawn EP3674025A1 (fr) 2018-12-31 2018-12-31 Segment de traitement pour le traitement à sec de matériaux de béton

Country Status (4)

Country Link
US (1) US20220055184A1 (fr)
EP (2) EP3674025A1 (fr)
KR (1) KR20210108362A (fr)
WO (1) WO2020141017A1 (fr)

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WO2020128085A1 (fr) * 2018-12-21 2020-06-25 Hilti Aktiengesellschaft Procédé pour fabriquer une ébauche crue et procédé pour transformer l'ébauche crue en segment d'usinage pour l'usinage à sec de matériaux de béton
EP3670040A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement pour le traitement à sec de matériaux de béton
EP3670036A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement pour le traitement à sec de matériaux de béton
EP3670035A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement destiné au forage à sec de matériaux de béton
EP3670041A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement pour le traitement à sec de matériaux de béton
EP3670037A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement pour le traitement à sec des matériaux de béton
EP3670038A1 (fr) * 2018-12-21 2020-06-24 Hilti Aktiengesellschaft Procédé de fabrication d'un segment de traitement pour le traitement à sec de matériaux de béton
KR20210105363A (ko) * 2018-12-21 2021-08-26 힐티 악티엔게젤샤프트 그린 본체 생산 방법 및 그린 본체를 콘크리트 재료의 건식 가공을 위한 가공 세그먼트로 추가적으로 프로세싱하기 위한 방법

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EP2745966A1 (fr) 2012-12-21 2014-06-25 HILTI Aktiengesellschaft Trépan doté d'une section de coupe interchangeable
EP2745965A1 (fr) 2012-12-21 2014-06-25 HILTI Aktiengesellschaft Trépan doté d'une section de coupe interchangeable
KR20160066280A (ko) * 2014-12-02 2016-06-10 김태웅 다이아몬드 공구용 분말의 제조 방법, 및 이를 이용한 절삭팁의 제조 방법

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EP3674025A1 (fr) 2020-07-01
KR20210108362A (ko) 2021-09-02
WO2020141017A1 (fr) 2020-07-09
US20220055184A1 (en) 2022-02-24

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