US3663316A - Steel for saw blades - Google Patents
Steel for saw blades Download PDFInfo
- Publication number
- US3663316A US3663316A US102913A US3663316DA US3663316A US 3663316 A US3663316 A US 3663316A US 102913 A US102913 A US 102913A US 3663316D A US3663316D A US 3663316DA US 3663316 A US3663316 A US 3663316A
- Authority
- US
- United States
- Prior art keywords
- steel
- sawblade
- saw blades
- bainitic
- saws
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title description 14
- 239000010959 steel Substances 0.000 title description 14
- 241000763859 Dyckia brevifolia Species 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/127—Straight saw blades; Strap saw blades of special material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
- Y10S148/905—Cutting tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
Definitions
- the hardness of this steel was 51-52 HR.
- the notch impact strength measured on five test pieces was between 29 and 31 mkp/cm.
- test pieces of the same steel were heat treated by the conventional method of quenching followed by tempering and were found to possess a hardness of 51-52 l-lRc as well.
- the notch impact strength of these samples was only at the 2.5-3.5 mkp/cm
- the instant invention is therefor the use of particular steels having 06-09%C, 0.5-1.0% Si, 0.41.0% Mn, 0.4-1.0% Cr, 0.2-0.8 Mo, O.3l.0% Ni, possibly up to 0,3 Ti and/or V, remainder iron and residual impurities, in bainitic hardened condition with a hardness of 46-54 l-lRc for the manufacture of chain saws.
- This steel is also very suitable for long-band-saws, which are particularly stressed by buckling at the sides.
- a sawblade consisting essentially of 0.6-0.9% C, 0.5-1.0% Si, 0.4-1.0% Mn, O.4l.0% Cr, 0.20.8% Mo, 0.3-1 .0% Ni, at least one element in an amount of up to 0.3% selected from the group consisting of Ti or V, remainder iron and residual impurities; the microstructure of the sawblade being bainitic which has been hardened to a hardness range of 46-54 HR.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A sawblade consisting essentially of 0.6-0.9% C, 0.5-1.0% Si, 0.4-1.0% Mn, 0.4-1.0% Cr, 0.2-0.8% Mo, 0.3-1.0% Ni, at least one element in an amount of up to 0.3% selected from the group consisting of Ti or V, remainder iron and residual impurities; the microstructure of the sawblade being bainitic which has been hardened to a hardness range of 46-54 HRc.
Description
United States Patent Kulmburg [451 May 16, 1972 STEEL FOR SAW BLADES References Cited [72] Inventor: Alfred Kulmburg, Kapfenberg, Austria UNITED STATES PATENTS 73 Assignee; m; Bohler & Cm Akfi e eu haft 1,464,174 8/1923 Finkl 148/36 K f b Austria 1,660,790 2/1928 Herman 75/128 w 2,289,081 7/1942 Shortell et 21.... ..29/95 I Ffledi 1970 3,131,056 4/1964 0111161116161... 75/128 w 3,507,633 4/1970 Dewez ..29/183 1. N [2]] App 102 913 3,528,088 9/1970 Seghe711et a] ..148/36 x [30] Foreign Application Priority Data Primary Examiner-Charles N. Lovell Jan. 9, 1970 Austria ..Al62/70 Stem [57] ABSTRACT 52] 11.8. C1 ..148/36, 29/95, 30/166,
75 23 w 143 133 A sawblade consisting essentially of 0.60.9% C, 0.51.0% Si, 51 Int. Cl. ..C2ld 9 24, C22C 39/20, 823p 15/28 04-19% Mn, Cr, 02-03% 1 03-10% Ni, 4! [58] Field 61 Search ..75 128 v, 128 w; 148/36; least one element In an amount of p to 033% Selected from the group consisting of Ti or V, remainder iron and residual impurities; the microstructure of the sawblade being bainitic which has been hardened to a hardness range of 46-54 l-lR 3 Claims, N0 Drawings STEEL FOR SAW BLADES The invention relates to saw blades having baintic microstructure.
Generally in the fabrication of blades for power-saws, chain-saws, resaws, wide-band saws and wood/timber-saws, steels are used which possess on one hand a very hard surface and on the other a relatively tough core. To satisfy the requirements for this purpose, the German standard steel designations C 70 W1, C 87 WS and C 85 WS according ASl-W l) are suggested for the fabrication of such sawblades. For more severe service conditions the sawblades are fabricated of 80 Cr, V 2.
All these steels are used in quenched and tempered conditions. ln service saws blades must be wear-resistant as well as tough. These contrary properties are practically unobtainable in one tool. l-ligh wear resistance which means a high hardness usually means a such great loss in toughness which causes the sawblades to be replaced because the single chain-links of sawblades fracture. If one lowers the wear-resistance to obtain a higher toughness, then the service-life of the sawblades is very much reduced by early wear.
Extensive experiments have shown, that it is possible to use machine-saw-steels for sawblades having bainitic instead of martensitic microstructure in tempered condition. it was discovered, that steels with 0.6-0.9% C, 05-10% Si, 0.4-l.0% Mn, 0.4-l.0% Cr, 02-08% Mo, O.3l.0% Ni, possibly up to 0.3% Ti and/or V, remainder iron and residual impurities, possess when in bainitic hardened condition with a hardness of 46-54 Hr an optimal toughness.
For example, a steel with 0.68-0.73% C, O.80-1.00% Si, 0.35-0.50% Mn, OAS-0.60% Cr, 0.250.35% Mo, 0.55-0.75% Ni, remainder iron, was austenitised between 860880 C, followed by a treatment in a molten bath between 2903 30 C. After an isothermal holding time of approximately 60-90 minutes the cooling took place in still air. After this heat treatment the steel was in a bainitic condition.
The hardness of this steel was 51-52 HR.
The notch impact strength measured on five test pieces, was between 29 and 31 mkp/cm. For comparison, test pieces of the same steel were heat treated by the conventional method of quenching followed by tempering and were found to possess a hardness of 51-52 l-lRc as well. The notch impact strength of these samples however was only at the 2.5-3.5 mkp/cm The instant invention is therefor the use of particular steels having 06-09%C, 0.5-1.0% Si, 0.41.0% Mn, 0.4-1.0% Cr, 0.2-0.8 Mo, O.3l.0% Ni, possibly up to 0,3 Ti and/or V, remainder iron and residual impurities, in bainitic hardened condition with a hardness of 46-54 l-lRc for the manufacture of chain saws.
This steel is also very suitable for long-band-saws, which are particularly stressed by buckling at the sides.
Although the invention has been described in detail, it is to be understood that this does not delimit the invention. The spirit and scope of this invention is limited only by the language of the appended claims.
What we claim is:
1. A sawblade consisting essentially of 0.6-0.9% C, 0.5-1.0% Si, 0.4-1.0% Mn, O.4l.0% Cr, 0.20.8% Mo, 0.3-1 .0% Ni, at least one element in an amount of up to 0.3% selected from the group consisting of Ti or V, remainder iron and residual impurities; the microstructure of the sawblade being bainitic which has been hardened to a hardness range of 46-54 HR.
2. The sawblade as claimed in claim 1 wherein the composition is 0.68-0.73% C, 0.80-1.00% Si, 0.35-0.50% Mn,.
0.550.75% Ni, the
Claims (2)
- 2. The sawblade as claimed in claim 1 wherein the composition is 0.68-0.73% C, 0.80-1.00% Si, 0.35-0.50% Mn, 0.45-0.60% Cr, 0.25-0.35% Mo, 0.55-0.75% Ni, the remainder iron and residual impurities.
- 3. The sawblade as claimed in claim 1 which has a notch impact strength of between 29 and 31 mkp/cm2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT16270A AT309495B (en) | 1970-01-09 | 1970-01-09 | Chainsaw steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3663316A true US3663316A (en) | 1972-05-16 |
Family
ID=3483196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US102913A Expired - Lifetime US3663316A (en) | 1970-01-09 | 1970-12-30 | Steel for saw blades |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3663316A (en) |
| AT (1) | AT309495B (en) |
| CA (1) | CA958921A (en) |
| CH (1) | CH558834A (en) |
| DE (1) | DE2063940B2 (en) |
| GB (1) | GB1289061A (en) |
| NO (1) | NO127629B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859146A (en) * | 1968-12-09 | 1975-01-07 | Ceskoslovenska Akademie Ved | Steel composition, particularly for anti-friction bearings |
| US4343661A (en) * | 1978-11-15 | 1982-08-10 | Caterpillar Tractor Co. | Method of making a low temperature bainite steel alloy gear |
| US4645715A (en) * | 1981-09-23 | 1987-02-24 | Energy Conversion Devices, Inc. | Coating composition and method |
| US5185162A (en) * | 1991-06-17 | 1993-02-09 | Xaloy, Incorporated | Corrosion and wear resistant bimetallic cylinder |
| FR2698308A1 (en) * | 1992-11-23 | 1994-05-27 | Collard Michel | Anti-soiling cutting blades - comprises blade made of rust-proof material with large hardness level with fine surface, this material may be rust-proof steel |
| US5651938A (en) * | 1995-05-01 | 1997-07-29 | Blount, Inc. | High strength steel composition having enhanced low temperature toughness |
| EP1130126A2 (en) * | 2000-02-29 | 2001-09-05 | Böhler Miller Messer und Sägen GmbH | Blade body for thin circular saws |
| US20040182216A1 (en) * | 2002-07-31 | 2004-09-23 | Electrolux Professional Outdoor Products, Inc. | Coating for a chainsaw chain |
| US20210129243A1 (en) * | 2018-06-19 | 2021-05-06 | Ceratizit Luxembourg S.A.R.L | Saw blade |
| CN113528943A (en) * | 2021-06-16 | 2021-10-22 | 首钢集团有限公司 | High-strength and high-toughness steel for metallurgical saw blade and preparation method thereof |
| CN113840935A (en) * | 2019-05-17 | 2021-12-24 | 胡斯华纳有限公司 | Steel for sawing devices |
| CN114457287A (en) * | 2022-01-10 | 2022-05-10 | 包头钢铁（集团）有限责任公司 | High-strength steel for saw blade and production method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55500910A (en) * | 1978-11-15 | 1980-11-06 | ||
| PL295618A1 (en) * | 1991-08-19 | 1993-03-22 | Miller Martin Ag | Steel in particular for wood saws |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1464174A (en) * | 1922-02-11 | 1923-08-07 | Finkl & Sons Co | Air-hardening steel alloy |
| US1660790A (en) * | 1926-05-27 | 1928-02-28 | Alloy Steel Corp | Process of preparing alloy steel for die blocks and other purposes |
| US2289081A (en) * | 1938-08-30 | 1942-07-07 | Millers Falls Co | Hack saw blade |
| US3131056A (en) * | 1962-04-20 | 1964-04-28 | Int Nickel Co | Rolling contact bearing steels and process for heat treating the same |
| US3507633A (en) * | 1967-04-17 | 1970-04-21 | Fernand J Dewez Jr | Circular saw blade of chromium nickel steel with an oxide coat |
| US3528088A (en) * | 1967-01-23 | 1970-09-08 | Hilti Ag | Anchoring device of spring steel and method for imparting the device with a bainitic structure |
-
1970
- 1970-01-09 AT AT16270A patent/AT309495B/en not_active IP Right Cessation
- 1970-12-28 DE DE19702063940 patent/DE2063940B2/en active Pending
- 1970-12-30 CH CH1939670A patent/CH558834A/en not_active IP Right Cessation
- 1970-12-30 US US102913A patent/US3663316A/en not_active Expired - Lifetime
-
1971
- 1971-01-07 GB GB1289061D patent/GB1289061A/en not_active Expired
- 1971-01-08 CA CA102,282A patent/CA958921A/en not_active Expired
- 1971-01-08 NO NO00065/71A patent/NO127629B/no unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1464174A (en) * | 1922-02-11 | 1923-08-07 | Finkl & Sons Co | Air-hardening steel alloy |
| US1660790A (en) * | 1926-05-27 | 1928-02-28 | Alloy Steel Corp | Process of preparing alloy steel for die blocks and other purposes |
| US2289081A (en) * | 1938-08-30 | 1942-07-07 | Millers Falls Co | Hack saw blade |
| US3131056A (en) * | 1962-04-20 | 1964-04-28 | Int Nickel Co | Rolling contact bearing steels and process for heat treating the same |
| US3528088A (en) * | 1967-01-23 | 1970-09-08 | Hilti Ag | Anchoring device of spring steel and method for imparting the device with a bainitic structure |
| US3507633A (en) * | 1967-04-17 | 1970-04-21 | Fernand J Dewez Jr | Circular saw blade of chromium nickel steel with an oxide coat |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859146A (en) * | 1968-12-09 | 1975-01-07 | Ceskoslovenska Akademie Ved | Steel composition, particularly for anti-friction bearings |
| US4343661A (en) * | 1978-11-15 | 1982-08-10 | Caterpillar Tractor Co. | Method of making a low temperature bainite steel alloy gear |
| US4645715A (en) * | 1981-09-23 | 1987-02-24 | Energy Conversion Devices, Inc. | Coating composition and method |
| US5185162A (en) * | 1991-06-17 | 1993-02-09 | Xaloy, Incorporated | Corrosion and wear resistant bimetallic cylinder |
| FR2698308A1 (en) * | 1992-11-23 | 1994-05-27 | Collard Michel | Anti-soiling cutting blades - comprises blade made of rust-proof material with large hardness level with fine surface, this material may be rust-proof steel |
| US5651938A (en) * | 1995-05-01 | 1997-07-29 | Blount, Inc. | High strength steel composition having enhanced low temperature toughness |
| US5772957A (en) * | 1995-05-01 | 1998-06-30 | Blount, Inc. | High strength steel composition having enhanced low temperature toughness |
| EP1130126A3 (en) * | 2000-02-29 | 2003-07-02 | Böhler Miller Messer und Sägen GmbH | Blade body for thin circular saws |
| EP1130126A2 (en) * | 2000-02-29 | 2001-09-05 | Böhler Miller Messer und Sägen GmbH | Blade body for thin circular saws |
| US20040182216A1 (en) * | 2002-07-31 | 2004-09-23 | Electrolux Professional Outdoor Products, Inc. | Coating for a chainsaw chain |
| US20210129243A1 (en) * | 2018-06-19 | 2021-05-06 | Ceratizit Luxembourg S.A.R.L | Saw blade |
| US11883893B2 (en) * | 2018-06-19 | 2024-01-30 | Ceratizit Luxembourg S.A.R.L. | Saw blade |
| CN113840935A (en) * | 2019-05-17 | 2021-12-24 | 胡斯华纳有限公司 | Steel for sawing devices |
| CN113840935B (en) * | 2019-05-17 | 2022-10-18 | 胡斯华纳有限公司 | Steel for sawing devices |
| CN113528943A (en) * | 2021-06-16 | 2021-10-22 | 首钢集团有限公司 | High-strength and high-toughness steel for metallurgical saw blade and preparation method thereof |
| CN114457287A (en) * | 2022-01-10 | 2022-05-10 | 包头钢铁（集团）有限责任公司 | High-strength steel for saw blade and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1289061A (en) | 1972-09-13 |
| CA958921A (en) | 1974-12-10 |
| CH558834A (en) | 1975-02-14 |
| DE2063940A1 (en) | 1971-07-15 |
| DE2063940B2 (en) | 1976-05-26 |
| NO127629B (en) | 1973-07-23 |
| AT309495B (en) | 1973-08-27 |
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