WO2021072362A1 - Method for coating teeth of a cutting tool - Google Patents

Method for coating teeth of a cutting tool Download PDF

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Publication number
WO2021072362A1
WO2021072362A1 PCT/US2020/055224 US2020055224W WO2021072362A1 WO 2021072362 A1 WO2021072362 A1 WO 2021072362A1 US 2020055224 W US2020055224 W US 2020055224W WO 2021072362 A1 WO2021072362 A1 WO 2021072362A1
Authority
WO
WIPO (PCT)
Prior art keywords
face
tooth
joining
coating process
blade
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.)
Ceased
Application number
PCT/US2020/055224
Other languages
French (fr)
Inventor
Chandra Sekhar Rakurty
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.)
MK Morse Co
Original Assignee
MK Morse Co
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 MK Morse Co filed Critical MK Morse Co
Priority to EP20874667.7A priority Critical patent/EP4041482A4/en
Priority to US17/765,636 priority patent/US20220362868A1/en
Priority to KR1020227015389A priority patent/KR102862332B1/en
Priority to MX2022004096A priority patent/MX2022004096A/en
Priority to JP2022521548A priority patent/JP7730809B2/en
Priority to CA3153859A priority patent/CA3153859A1/en
Publication of WO2021072362A1 publication Critical patent/WO2021072362A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
    • 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
    • B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0605—Carbon
    • C23C14/0611—Diamond
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only
    • C23C16/27—Diamond only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0605—Carbon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only

Definitions

  • This relates in general to cutting tools.
  • One type of cutting tools are saw blades.
  • saw blades There are many types of saw blades including, circular saw blades, reciprocating saw blades, and band saw blades, among others.
  • a blade may be subjected to heat treating and/or coating. These processes may change several properties of the blades, such as wearability, ductility, hardness, and shape, among others.
  • This relates more particularly to a method for coating the teeth of a cutting tool, and the resulting tool.
  • a method of manufacturing a saw blade includes placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer at an uncoated face.
  • the resulting saw blade may thus include teeth with coated and uncoated faces.
  • Fig. 1 is a schematic view of a tooth tip with a coated face.
  • a cutting tooth 110 includes a top face 115.
  • the top face 115 is formed as a clearance face.
  • the tooth 110 includes a back face 120 and a bottom face 125.
  • the back face 120 and the bottom face 125 are prepared for joining to a blade backer (not shown) with either or both of the back face 120 and/or the bottom face 125 being bonded to the blade backer, for example by welding, brazing, bonding or other suitable process.
  • the tooth 110 also includes side faces (one shown) 130.
  • the cutting tooth 110 includes a front face 132.
  • the front face 132 is formed as a rake face and includes a coating 135 having bonding layer 140, a heat resistant layer 145 and a tool ware layer 150, though not all such layers are required.
  • At least one tooth 110 is placed in an holder (not shown) where at least one face of the tooth is covered and at least one face of the tooth is exposed.
  • the tooth 110 is disposed in a pocket in the holder where the top face 115, the back face 120, the bottom face 125 and the side faces 130 are covered, and the front face 132 is exposed for coating.
  • the bonding layer 140 is placed on the front face 132, the heat resistant layer 145 is then placed on the bonding layer 140, and then the tool wear layer 150 is placed upon the heat resistant layer 145.
  • the exposed face(s) to be coated may be the front face 132 or any other face or faces as desired, and that any face or faces may be covered during the coating process in any number and types of layers as desired.
  • the coating process results in multi-layer coatings upon at least one face of a cutting tooth.
  • the coating process may utilize a high temperature coating process, such as
  • CVD Chemical Vapor Deposition
  • PVD Physical Vapor Deposition
  • diamond diamond-like coating processes and others.
  • the tooth 110 may be joined to the blade backer.
  • the method may include brazing, welding, or bonding an uncoated face, such as the back face 120 or bottom face 125, to the blade backer.
  • the blade backer may have a tooth seat formed therein for mating with the back face 120 and/pr bottom face 125.
  • a coating or coatings may be applied to select faces of a tooth before the tooth is joined to a blade backer. Other tooth faces may then be brazed, welded, or bonded to a blade backer after the coating process.
  • the method may further include grinding the coated or uncoated faces before or after joining the tooth to the blade backer.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Vapour Deposition (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Physical Vapour Deposition (AREA)
  • Knives (AREA)

Abstract

A method of manufacturing a saw blade includes placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer at an uncoated face.

Description

METHOD FOR COATING TEETH OF A CUTTING TOOL
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to and the benefit of US Provisional Patent
Application No. 62/913,699, filed 10 October 2019, the contents of which are hereby incorporated by reference in their entirety.
BACKGROUND
[0002] This relates in general to cutting tools. One type of cutting tools are saw blades.
There are many types of saw blades including, circular saw blades, reciprocating saw blades, and band saw blades, among others.
[0003] There are several different manufacturing or treatment processes to which these blades may be subjected. For example, a blade may be subjected to heat treating and/or coating. These processes may change several properties of the blades, such as wearability, ductility, hardness, and shape, among others.
SUMMARY
[0004] This relates more particularly to a method for coating the teeth of a cutting tool, and the resulting tool.
[0005] A method of manufacturing a saw blade includes placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer at an uncoated face. [0006] The resulting saw blade may thus include teeth with coated and uncoated faces.
[0007] Various aspects will become apparent to those skilled in the art from the following detailed description and the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS [0008] Fig. 1 is a schematic view of a tooth tip with a coated face.
DETAILED DESCRIPTION
[0009] The following is described in conjunction with Fig. 1. A cutting tooth 110 includes a top face 115. In the illustrated embodiment the top face 115 is formed as a clearance face. The tooth 110 includes a back face 120 and a bottom face 125. In the illustrated embodiment the back face 120 and the bottom face 125 are prepared for joining to a blade backer (not shown) with either or both of the back face 120 and/or the bottom face 125 being bonded to the blade backer, for example by welding, brazing, bonding or other suitable process. The tooth 110 also includes side faces (one shown) 130.
[0010] The cutting tooth 110 includes a front face 132. In the illustrated embodiment the front face 132 is formed as a rake face and includes a coating 135 having bonding layer 140, a heat resistant layer 145 and a tool ware layer 150, though not all such layers are required.
[0011] In a method of manufacturing a saw blade, at least one tooth 110 is placed in an holder (not shown) where at least one face of the tooth is covered and at least one face of the tooth is exposed. In an exemplary method, the tooth 110 is disposed in a pocket in the holder where the top face 115, the back face 120, the bottom face 125 and the side faces 130 are covered, and the front face 132 is exposed for coating. [0012] During the preferred coating process, the bonding layer 140 is placed on the front face 132, the heat resistant layer 145 is then placed on the bonding layer 140, and then the tool wear layer 150 is placed upon the heat resistant layer 145.
[0013] While the above is preferred, it must be understood that the exposed face(s) to be coated may be the front face 132 or any other face or faces as desired, and that any face or faces may be covered during the coating process in any number and types of layers as desired.
[0014] Thus, in at least one embodiment, the coating process results in multi-layer coatings upon at least one face of a cutting tooth.
[0015] The coating process may utilize a high temperature coating process, such as
Chemical Vapor Deposition (CVD), Physical Vapor Deposition (PVD), diamond or diamond- like coating processes and others.
[0016] After the coating process the tooth 110 may be joined to the blade backer.
[0017] The method may include brazing, welding, or bonding an uncoated face, such as the back face 120 or bottom face 125, to the blade backer. The blade backer may have a tooth seat formed therein for mating with the back face 120 and/pr bottom face 125.
[0018] Thus, a coating or coatings may be applied to select faces of a tooth before the tooth is joined to a blade backer. Other tooth faces may then be brazed, welded, or bonded to a blade backer after the coating process.
[0019] The method may further include grinding the coated or uncoated faces before or after joining the tooth to the blade backer.
[0020] While principles and modes of operation have been explained and illustrated with regard to particular embodiments, it must be understood, however, that this may be practiced otherwise than as specifically explained and illustrated without departing from its spirit or scope.

Claims

1. A method of manufacturing a saw blade comprising: placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer.
2. The method of claim 1 where the at least one covered face includes a back face.
3. The method of claim 2 where the joining includes brazing the back face to the blade backer.
4. The method of claim 2 where the joining includes welding the back face to the blade backer.
5. The method of claim 2 where the joining includes bonding the back face to the blade backer.
6. The method of claim 2 further comprising: prior to the joining, grinding the back face.
7. The method of claim 1 where the at least one covered face includes a bottom face.
8. The method of claim 7 where the joining includes brazing the bottom face to the blade backer.
9. The method of claim 7 where the joining includes welding the bottom face to the blade backer.
10. The method of claim 7 where the joining includes bonding the bottom face to the blade backer.
11. The method of claim 7 further comprising: prior to the joining, grinding the bottom face.
12. The method of claim 1 where the at least one exposed face includes a front face.
13. The method of claim 12 where the coating process results in multi-layer coatings on the front face.
14. The method of claim 13 where the front face forms a rake face.
15. The method of claim 1 where the coating process utilizes a high temperature coating process.
16. The method of claim 15 where the high temperature coating process includes Chemical
Vapor Deposition.
17. The method of claim 15 where the high temperature coating process includes Physical Vapor Deposition.
18. The method of claim 15 where the high temperature coating process includes a diamond or diamond-like coating process.
PCT/US2020/055224 2019-10-10 2020-10-12 Method for coating teeth of a cutting tool Ceased WO2021072362A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20874667.7A EP4041482A4 (en) 2019-10-10 2020-10-12 METHOD FOR COATING TEETH OF A CUTTING TOOL
US17/765,636 US20220362868A1 (en) 2019-10-10 2020-10-12 Method for coating teeth of a cutting tool
KR1020227015389A KR102862332B1 (en) 2019-10-10 2020-10-12 Method for coating the teeth of a cutting tool
MX2022004096A MX2022004096A (en) 2019-10-10 2020-10-12 METHOD FOR COATING THE TEETH OF A CUTTING TOOL.
JP2022521548A JP7730809B2 (en) 2019-10-10 2020-10-12 Method for coating cutting tool teeth
CA3153859A CA3153859A1 (en) 2019-10-10 2020-10-12 Method for coating teeth of a cutting tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962913699P 2019-10-10 2019-10-10
US62/913,699 2019-10-10

Publications (1)

Publication Number Publication Date
WO2021072362A1 true WO2021072362A1 (en) 2021-04-15

Family

ID=75436817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2020/055224 Ceased WO2021072362A1 (en) 2019-10-10 2020-10-12 Method for coating teeth of a cutting tool

Country Status (7)

Country Link
US (1) US20220362868A1 (en)
EP (1) EP4041482A4 (en)
JP (1) JP7730809B2 (en)
KR (1) KR102862332B1 (en)
CA (1) CA3153859A1 (en)
MX (1) MX2022004096A (en)
WO (1) WO2021072362A1 (en)

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US20100126326A1 (en) * 2008-11-21 2010-05-27 Cloutier Michael F Saw blade and method of manufacturing the same
US7736734B2 (en) * 2005-12-30 2010-06-15 Sandvik Intellectual Property Ab Cutting tool insert
US20150273724A1 (en) * 2012-12-28 2015-10-01 Kanefusa Kabushiki Kaisha Cutting Tool
EP3015206A1 (en) 2013-06-24 2016-05-04 Kanefusa Kabushiki Kaisha Method for manufacturing circular saw with hard tip

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US20090004440A1 (en) * 2007-06-28 2009-01-01 Zhigang Ban Cutting insert with a wear-resistant coating scheme exhibiting wear indication and method of making the same
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US20150273724A1 (en) * 2012-12-28 2015-10-01 Kanefusa Kabushiki Kaisha Cutting Tool
EP3015206A1 (en) 2013-06-24 2016-05-04 Kanefusa Kabushiki Kaisha Method for manufacturing circular saw with hard tip

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ANONYMOUS: "Frequently Asked Questions", 2 August 2018 (2018-08-02), pages 1 - 4, XP055911110, Retrieved from the Internet <URL:https://web.archive.org/web/20180802211700/http://www.richterprecision.com/coating-data/frequently-asked-questions> [retrieved on 20220411] *
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See also references of EP4041482A4

Also Published As

Publication number Publication date
EP4041482A1 (en) 2022-08-17
MX2022004096A (en) 2022-07-11
US20220362868A1 (en) 2022-11-17
JP7730809B2 (en) 2025-08-28
EP4041482A4 (en) 2023-12-06
CA3153859A1 (en) 2021-04-15
KR20220078661A (en) 2022-06-10
KR102862332B1 (en) 2025-09-18
JP2022551650A (en) 2022-12-12

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