WO2000052217A1 - Tool for wood working - Google Patents
Tool for wood working Download PDFInfo
- Publication number
- WO2000052217A1 WO2000052217A1 PCT/SE2000/000394 SE0000394W WO0052217A1 WO 2000052217 A1 WO2000052217 A1 WO 2000052217A1 SE 0000394 W SE0000394 W SE 0000394W WO 0052217 A1 WO0052217 A1 WO 0052217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- binder phase
- cemented carbide
- ruthenium
- grain size
- wood
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Definitions
- the present invention relates to a tungsten carbide- based tool for woodworking. By alloying the binder phase with ruthenium the properties have been improved.
- Cemented carbide containing ruthenium as binder phase alone or in combination with the conventional Co and/or Ni is known in the art.
- AT 268706 discloses a hard metal with Ru, Rh, Pd, Os, Ir, Pt and Re alone or in combination as binder phase.
- US 4,574,011 discloses a hard metal composition for ornamental purposes with a binder phase of Co, Ni and Ru.
- GB 1309634 discloses a cutting tool with a Ru binder phase.
- GB 622041 discloses a hard metal composition with a Co+Ru binder phase.
- US 5,603,075 and US 5,802,955 disclose Ru- containing hard metal for corrosion resistant high pressure plungers.
- WO 99/13121 discloses a printed circuit drill containing Ru .
- the cutting and machining of wood and wood based materials require a range of properties from the tool material in order for it to perform successfully. These include a high hardness, a resistance to chemical attack from the resins included in wooden products and a sharp as possible cutting edge. It has now been found that these properties are improved when adding ruthenium.
- the invention is primarily concerned with the addition of ruthenium to cobalt-based grades of cemented carbide.
- the levels of addition vary between 1 and 30wt%, preferably between 20 and 25wt%, of the total binder phase content.
- the rest of the binder phase consists of 1 to 5wt% Mo, 5 to 15wt% Cr and rest Co. Up to 20wt% Co can be replaced by Ni .
- the total binder phase content of the grade to which this addition can be made shall be l-10wt%, preferably 1.5-4wt%; the remainder being tungsten carbide.
- the average WC grain size shall be ⁇ 1.5 ⁇ m, preferably between 0.8 and 1.2 ⁇ m or alternatively between 0.2 and 0.8 ⁇ m.
- the invention also relates to the use of a cemented carbide with fine WC grain size and with a binder phase containing l-30wt% ruthenium as a tool, such as saw tips and indexable knives for cutting and machining of wood and wood-based products, particularly particle boards and medium density fibre boards (MDF) .
- a cemented carbide with fine WC grain size and with a binder phase containing l-30wt% ruthenium as a tool, such as saw tips and indexable knives for cutting and machining of wood and wood-based products, particularly particle boards and medium density fibre boards (MDF) .
- MDF medium density fibre boards
- the present invention further relates to a method of making a cemented carbide body comprising one or more hard constituents and a binder phase based on cobalt, molybdenum, chromium and nickel by powder metallurgical methods milling, pressing and sintering of powders forming hard constituents and binder phase whereby said binder phase contains l-30wt% ruthenium.
- sintering is performed using gas pressure sintering also referred to as sinter-HIP.
- the advantages offered by the ruthenium additions are as mentioned an increase in resistance to chemical attack and an increase in hardness. Furthermore, a decrease in average grain size is observed.
- Cemented carbide indexable knives (A) were produced with the composition: 1.9wt% cobalt, 0.7wt% ruthenium, 0.1wt% molybdenum, 0.3wt% chromium, the remainder tungsten carbide with an average grain size of about 0.9 ⁇ m.
- the hardness of the material was measured to 1940HV.
- indexable knives (B) were produced, containing 1.9wt% cobalt, 0.7wt% nickel, 0. lwt% molybdenum, 0.3wt% chromium.
- the rest was tungsten carbide with an average grain size of about 0.9 ⁇ m.
- the hardness was measured to 1880HV.
- the indexable knives were tested through working in particle fibre board plates in a top cutter. The cutting conditions were: 18000rpm at a feed rate of lm/min. The depth of the wear was measured on the cutting edge with the following result:
- the data show a decrease in wear of the cutting edge of about 20-25%.
Abstract
A dense cemented carbide product is described. The product is manufactured from tungsten carbide with an average grain size of less than 1.5 νm and a binder phase based on cobalt and ruthenium. The product is used in wood working operations where the addition of 1-30 % ruthenium to the binder phase offers up to 25 % increase in wear resistance compared to conventional hard metal.
Description
Tool for wood working
The present invention relates to a tungsten carbide- based tool for woodworking. By alloying the binder phase with ruthenium the properties have been improved.
Cemented carbide containing ruthenium as binder phase alone or in combination with the conventional Co and/or Ni is known in the art. For example, AT 268706 discloses a hard metal with Ru, Rh, Pd, Os, Ir, Pt and Re alone or in combination as binder phase. US 4,574,011 discloses a hard metal composition for ornamental purposes with a binder phase of Co, Ni and Ru. GB 1309634 discloses a cutting tool with a Ru binder phase. GB 622041 discloses a hard metal composition with a Co+Ru binder phase. US 5,603,075 and US 5,802,955 disclose Ru- containing hard metal for corrosion resistant high pressure plungers. WO 99/13121 discloses a printed circuit drill containing Ru .
The cutting and machining of wood and wood based materials require a range of properties from the tool material in order for it to perform successfully. These include a high hardness, a resistance to chemical attack from the resins included in wooden products and a sharp as possible cutting edge. It has now been found that these properties are improved when adding ruthenium. The invention is primarily concerned with the addition of ruthenium to cobalt-based grades of cemented carbide. The levels of addition vary between 1 and 30wt%, preferably between 20 and 25wt%, of the total binder phase content. The rest of the binder phase consists of 1 to 5wt% Mo, 5 to 15wt% Cr and rest Co. Up to 20wt% Co can be replaced by Ni . The total binder phase content of the grade to which this addition can be made shall be l-10wt%, preferably 1.5-4wt%; the remainder being tungsten carbide. The average WC grain
size shall be <1.5μm, preferably between 0.8 and 1.2μm or alternatively between 0.2 and 0.8 μm.
The invention also relates to the use of a cemented carbide with fine WC grain size and with a binder phase containing l-30wt% ruthenium as a tool, such as saw tips and indexable knives for cutting and machining of wood and wood-based products, particularly particle boards and medium density fibre boards (MDF) .
The present invention further relates to a method of making a cemented carbide body comprising one or more hard constituents and a binder phase based on cobalt, molybdenum, chromium and nickel by powder metallurgical methods milling, pressing and sintering of powders forming hard constituents and binder phase whereby said binder phase contains l-30wt% ruthenium. Preferably sintering is performed using gas pressure sintering also referred to as sinter-HIP.
The advantages offered by the ruthenium additions are as mentioned an increase in resistance to chemical attack and an increase in hardness. Furthermore, a decrease in average grain size is observed.
Example 1
Cemented carbide indexable knives (A) according to the invention were produced with the composition: 1.9wt% cobalt, 0.7wt% ruthenium, 0.1wt% molybdenum, 0.3wt% chromium, the remainder tungsten carbide with an average grain size of about 0.9μm. The hardness of the material was measured to 1940HV. For comparison indexable knives (B) were produced, containing 1.9wt% cobalt, 0.7wt% nickel, 0. lwt% molybdenum, 0.3wt% chromium. The rest was tungsten carbide with an average grain size of about 0.9μm. The hardness was measured to 1880HV.
The indexable knives were tested through working in particle fibre board plates in a top cutter. The cutting conditions were: 18000rpm at a feed rate of lm/min. The depth of the wear was measured on the cutting edge with the following result:
The data show a decrease in wear of the cutting edge of about 20-25%.
Claims
1. Cemented carbide for wood working containing 1 to 10 wt% Co-based binder phase and the remainder tungsten carbide with an average grain size of <1.5μm c h a r a c t e r i s e d in that said binder phase contains 1 to 30 wt% ruthenium.
2. Cemented carbide according to the preceding claim c h a r a c t e r i s e d in that the binder phase contains 40 to 80wt% Co.
3. Cemented carbide according to any of the preceding claims c h a r a c t e r i s e d in that the binder phase contains 1 to 5wt% Mo.
4. Cemented carbide according to any of the preceding claims c h a r a c t e r i s e d in that the binder phase contains 5 to 15wt% Cr.
5. Cemented carbide according to any of the preceding claims c h a r a c t e r i s e d in that the average grain size of the tungsten carbide is between 0.8 and 1.2 μm.
6. Cemented carbide according to any of the preceding claims 1-4 c h a r a c t e r i s e d in that the average grain size of the tungsten carbide is between 0.2 and 0.8 μm.
7. Cemented carbide according to any of the preceding claims c h a r a c t e r i s e d in that the binder phase content is 1.5 to 4wt%.
8. Cemented carbide according to any of the preceding claims c h a r a c t e r i s e d in that the binder phase contains 20 to 25wt% Ru.
9. Use of a cemented carbide with fine tungsten carbide and 1 to 10wt% Co-based binder phase containing 1 to 30wt% Ru as a tool for cutting and machining of wood or wood-based products, particularly particle boards and medium density fibre boards.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9900738-7 | 1999-03-02 | ||
| SE9900738A SE9900738D0 (en) | 1999-03-02 | 1999-03-02 | Tool for wood working |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000052217A1 true WO2000052217A1 (en) | 2000-09-08 |
Family
ID=20414685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2000/000394 WO2000052217A1 (en) | 1999-03-02 | 2000-02-28 | Tool for wood working |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE9900738D0 (en) |
| WO (1) | WO2000052217A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006023222A1 (en) * | 2004-08-20 | 2006-03-02 | Tdy Industries, Inc. | Pvd coated ruthenium featured cutting tools |
| US7687156B2 (en) | 2005-08-18 | 2010-03-30 | Tdy Industries, Inc. | Composite cutting inserts and methods of making the same |
| US8007922B2 (en) | 2006-10-25 | 2011-08-30 | Tdy Industries, Inc | Articles having improved resistance to thermal cracking |
| US8025112B2 (en) | 2008-08-22 | 2011-09-27 | Tdy Industries, Inc. | Earth-boring bits and other parts including cemented carbide |
| US8137816B2 (en) | 2007-03-16 | 2012-03-20 | Tdy Industries, Inc. | Composite articles |
| US8221517B2 (en) | 2008-06-02 | 2012-07-17 | TDY Industries, LLC | Cemented carbide—metallic alloy composites |
| US8272816B2 (en) | 2009-05-12 | 2012-09-25 | TDY Industries, LLC | Composite cemented carbide rotary cutting tools and rotary cutting tool blanks |
| US8308096B2 (en) | 2009-07-14 | 2012-11-13 | TDY Industries, LLC | Reinforced roll and method of making same |
| US8312941B2 (en) | 2006-04-27 | 2012-11-20 | TDY Industries, LLC | Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods |
| US8318063B2 (en) | 2005-06-27 | 2012-11-27 | TDY Industries, LLC | Injection molding fabrication method |
| US8322465B2 (en) | 2008-08-22 | 2012-12-04 | TDY Industries, LLC | Earth-boring bit parts including hybrid cemented carbides and methods of making the same |
| US8790439B2 (en) | 2008-06-02 | 2014-07-29 | Kennametal Inc. | Composite sintered powder metal articles |
| US8800848B2 (en) | 2011-08-31 | 2014-08-12 | Kennametal Inc. | Methods of forming wear resistant layers on metallic surfaces |
| US9016406B2 (en) | 2011-09-22 | 2015-04-28 | Kennametal Inc. | Cutting inserts for earth-boring bits |
| US9643236B2 (en) | 2009-11-11 | 2017-05-09 | Landis Solutions Llc | Thread rolling die and method of making same |
| WO2017152197A1 (en) * | 2016-03-11 | 2017-09-14 | Ceratizit Austria Gesellschaft M.B.H. | Machining tool |
| CN109072361A (en) * | 2016-03-11 | 2018-12-21 | 森拉天时奥地利有限公司 | machining tool |
| WO2019215025A1 (en) * | 2018-05-09 | 2019-11-14 | Tribo Hartstoff Gmbh | Workpiece of a hard metal material and method for producing same |
| US11821062B2 (en) | 2019-04-29 | 2023-11-21 | Kennametal Inc. | Cemented carbide compositions and applications thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992013112A1 (en) * | 1991-01-25 | 1992-08-06 | Sandvik Ab | Corrosion resistant cemented carbide |
| US5603075A (en) * | 1995-03-03 | 1997-02-11 | Kennametal Inc. | Corrosion resistant cermet wear parts |
| WO1999013121A1 (en) * | 1997-09-05 | 1999-03-18 | Sandvik Ab (Publ) | Tool for drilling/routing of printed circuit board materials |
-
1999
- 1999-03-02 SE SE9900738A patent/SE9900738D0/en unknown
-
2000
- 2000-02-28 WO PCT/SE2000/000394 patent/WO2000052217A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992013112A1 (en) * | 1991-01-25 | 1992-08-06 | Sandvik Ab | Corrosion resistant cemented carbide |
| US5603075A (en) * | 1995-03-03 | 1997-02-11 | Kennametal Inc. | Corrosion resistant cermet wear parts |
| WO1999013121A1 (en) * | 1997-09-05 | 1999-03-18 | Sandvik Ab (Publ) | Tool for drilling/routing of printed circuit board materials |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2267185A1 (en) * | 2004-08-20 | 2010-12-29 | TDY Industries, Inc. | PVD coated ruthenium featured cutting tools |
| US7244519B2 (en) * | 2004-08-20 | 2007-07-17 | Tdy Industries, Inc. | PVD coated ruthenium featured cutting tools |
| WO2006023222A1 (en) * | 2004-08-20 | 2006-03-02 | Tdy Industries, Inc. | Pvd coated ruthenium featured cutting tools |
| US8318063B2 (en) | 2005-06-27 | 2012-11-27 | TDY Industries, LLC | Injection molding fabrication method |
| US8808591B2 (en) | 2005-06-27 | 2014-08-19 | Kennametal Inc. | Coextrusion fabrication method |
| US8637127B2 (en) | 2005-06-27 | 2014-01-28 | Kennametal Inc. | Composite article with coolant channels and tool fabrication method |
| US7687156B2 (en) | 2005-08-18 | 2010-03-30 | Tdy Industries, Inc. | Composite cutting inserts and methods of making the same |
| US8647561B2 (en) | 2005-08-18 | 2014-02-11 | Kennametal Inc. | Composite cutting inserts and methods of making the same |
| US8789625B2 (en) | 2006-04-27 | 2014-07-29 | Kennametal Inc. | Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods |
| US8312941B2 (en) | 2006-04-27 | 2012-11-20 | TDY Industries, LLC | Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods |
| US8007922B2 (en) | 2006-10-25 | 2011-08-30 | Tdy Industries, Inc | Articles having improved resistance to thermal cracking |
| US8841005B2 (en) | 2006-10-25 | 2014-09-23 | Kennametal Inc. | Articles having improved resistance to thermal cracking |
| US8697258B2 (en) | 2006-10-25 | 2014-04-15 | Kennametal Inc. | Articles having improved resistance to thermal cracking |
| US8137816B2 (en) | 2007-03-16 | 2012-03-20 | Tdy Industries, Inc. | Composite articles |
| US8221517B2 (en) | 2008-06-02 | 2012-07-17 | TDY Industries, LLC | Cemented carbide—metallic alloy composites |
| US8790439B2 (en) | 2008-06-02 | 2014-07-29 | Kennametal Inc. | Composite sintered powder metal articles |
| US8225886B2 (en) | 2008-08-22 | 2012-07-24 | TDY Industries, LLC | Earth-boring bits and other parts including cemented carbide |
| US8858870B2 (en) | 2008-08-22 | 2014-10-14 | Kennametal Inc. | Earth-boring bits and other parts including cemented carbide |
| US8322465B2 (en) | 2008-08-22 | 2012-12-04 | TDY Industries, LLC | Earth-boring bit parts including hybrid cemented carbides and methods of making the same |
| US8459380B2 (en) | 2008-08-22 | 2013-06-11 | TDY Industries, LLC | Earth-boring bits and other parts including cemented carbide |
| US8025112B2 (en) | 2008-08-22 | 2011-09-27 | Tdy Industries, Inc. | Earth-boring bits and other parts including cemented carbide |
| US9435010B2 (en) | 2009-05-12 | 2016-09-06 | Kennametal Inc. | Composite cemented carbide rotary cutting tools and rotary cutting tool blanks |
| US8272816B2 (en) | 2009-05-12 | 2012-09-25 | TDY Industries, LLC | Composite cemented carbide rotary cutting tools and rotary cutting tool blanks |
| US9266171B2 (en) | 2009-07-14 | 2016-02-23 | Kennametal Inc. | Grinding roll including wear resistant working surface |
| US8308096B2 (en) | 2009-07-14 | 2012-11-13 | TDY Industries, LLC | Reinforced roll and method of making same |
| US9643236B2 (en) | 2009-11-11 | 2017-05-09 | Landis Solutions Llc | Thread rolling die and method of making same |
| US8800848B2 (en) | 2011-08-31 | 2014-08-12 | Kennametal Inc. | Methods of forming wear resistant layers on metallic surfaces |
| US9016406B2 (en) | 2011-09-22 | 2015-04-28 | Kennametal Inc. | Cutting inserts for earth-boring bits |
| WO2017152197A1 (en) * | 2016-03-11 | 2017-09-14 | Ceratizit Austria Gesellschaft M.B.H. | Machining tool |
| CN109072361A (en) * | 2016-03-11 | 2018-12-21 | 森拉天时奥地利有限公司 | machining tool |
| CN109072362A (en) * | 2016-03-11 | 2018-12-21 | 森拉天时奥地利有限公司 | machining tool |
| WO2019215025A1 (en) * | 2018-05-09 | 2019-11-14 | Tribo Hartstoff Gmbh | Workpiece of a hard metal material and method for producing same |
| US11821062B2 (en) | 2019-04-29 | 2023-11-21 | Kennametal Inc. | Cemented carbide compositions and applications thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| SE9900738D0 (en) | 1999-03-02 |
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