WO2005080039A1 - Saw blade, method for the production of such a saw blade, portable sawing machine, and use of a saw blade - Google Patents
Saw blade, method for the production of such a saw blade, portable sawing machine, and use of a saw blade Download PDFInfo
- Publication number
- WO2005080039A1 WO2005080039A1 PCT/DE2005/000267 DE2005000267W WO2005080039A1 WO 2005080039 A1 WO2005080039 A1 WO 2005080039A1 DE 2005000267 W DE2005000267 W DE 2005000267W WO 2005080039 A1 WO2005080039 A1 WO 2005080039A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- saw blade
- saw
- sawing machine
- cutting
- groove
- Prior art date
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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B9/00—Portable power-driven circular saws for manual operation
Definitions
- Saw blade method for manufacturing such a saw blade and portable sawing machine and use of a saw blade
- the invention relates to a saw blade for separating structures made of different materials, a method for producing such a saw blade and a portable saw machine with a saw blade for separating such structures.
- the invention relates to the use of such a saw blade.
- Saw blades in particular circular saw blades, are available for a large number of different areas of application and, accordingly, in different design variants.
- HSS saw blades or HM saw blades for cutting profiles made of steel, non-ferrous metal or stone.
- the saw blades In order to achieve a high cutting performance, the saw blades often rotate at very high speeds when machining workpieces, which means that correspondingly high cutting forces act on the saw blades.
- the saw blades In order to be able to absorb these cutting forces, the saw blades must have a certain minimum stability in addition to sufficient strength.
- the stability of the cutting performance essentially depends on the saw blade dimensions. In particular, the diameter of the workpieces to be machined depends on the size of the saw blade diameter used.
- the object of the invention is achieved on the one hand by a saw blade for separating structures from a wide variety of materials, in which the saw blade has a saw blade thickness of less than 2.3 mm and a saw blade diameter of more than 355 mm.
- a preferred embodiment variant provides that the saw blade has a cutting area with a saw blade thickness of less than 2.3 mm. Since the cutting forces that occur also depend crucially on the thickness of the cutting area, which is essentially in direct engagement with the workpiece to be machined, a correspondingly small saw blade thickness is particularly advantageous there.
- the saw blade has a saw blade base body with a base body thickness of less than 1.9 mm or less than 1.5 mm.
- a saw blade has a cutting area, the cutting edge of which consists of hard metal teeth
- the saw blade base body, on which the hard metal teeth are arranged has one as possible has a small thickness. This achieves a further reduction in the masses to be moved.
- saw blade base body is understood to mean that area of a saw blade with which the saw blade is clamped on a device provided for this purpose.
- the saw blade base body serves, in particular in the case of cutting edges made up of several parts, to accommodate individual cutting area segments If the present saw blade consists of only one component in one application, the term “saw blade base body” also means within the meaning of the invention that area of the saw blade that has a thickness that is equal to the thickness of the cutting area of the Saw blade is different.
- the saw blade has a cutting area which has a hard metal cutting edge.
- vibration absorber is understood in the sense of the invention to mean a device which at least reduces structure-borne noise and thus excessive vibration of the saw blade.
- Such a vibration absorber can be implemented in a variety of ways on a saw blade.
- a particularly simple embodiment of a vibration absorber has proven useful if the vibration absorber is designed as a groove in the basic saw blade body.
- the object of the invention is also achieved by means of a method for producing the saw blade on which the invention is based, in which vibration absorbers, preferably as a groove, are lasered onto the saw blade.
- the groove extends radially from the axis of rotation of the saw blade to the cutting area of the saw blade in the main body of the saw blade. This ensures that the basic saw blade body is subdivided into individual segments, but the individual segments are not completely separated from one another, but are only indicated by one or more vibration absorbers or by corresponding grooves.
- the groove is filled with a filler.
- the object of the invention is also achieved by a portable saw machine with a saw blade for separating structures made from a wide variety of materials, the portable saw machine having a saw blade holder for saw blades with a diameter of more than 355 mm.
- the term “portable sawing machine” describes a sawing machine that is mobile and can be taken to a place of use, that is, enables use “on site”.
- the portable sawing machine has a saw blade which has at least some of the features mentioned.
- Another advantage of the present sawing machine is that the weight of the portable sawing machine only increases insignificantly, if at all, in spite of the use of a larger saw blade, since no larger motor has to be provided.
- a saw blade with the above-mentioned features is also advantageous to use as a cutting means on a stationary cutting device.
- stationary sawing machines that already have saw blades with a saw blade diameter of over Can accommodate 355 mm.
- the conventional saw blades have a much wider cutting area, the stationary saws with conventional saw blades consequently have a lower cutting performance than saws with the present saw blade, which has the same saw blade diameter.
- the use of the present saw blade on known, stationary sawing machines is advantageous.
- the present saw blades can be sharpened and advantageously allow machining without the addition of coolant.
- the fact that the saw blades can be sharpened results in a long service life. Use without the use of coolant enables the saw blades to be used advantageously on mobile sawing machines.
- Figure 1 shows schematically a sectional partial view of a saw blade
- FIG. 1 schematically shows a partial view of a portable sawing machine.
- the saw blade 1 shown in FIG. 1 has a saw trunk blade 2 to which hard metal teeth 3 (shown and numbered here only by way of example) are soldered.
- the hard metal teeth 3 have a hard metal tooth thickness 5 on their peripheral cutting edge 4.
- the hard metal tooth thickness 5 is the maximum saw blade thickness of the saw blade 1 and has a value of 2.2 mm, the saw blade 1 having a saw blade diameter 6 with a value of 405 mm.
- the saw trunk blade 2 only has a saw trunk blade thickness 7 of 1.8 mm.
- a groove 8 is provided for reducing vibrations in the area of the saw trunk blade 2.
- the groove 8 extends radially in the saw trunk blade 2.
- the groove 8 is filled with a filler 9, so that vibrations of the saw trunk blade 2 are interrupted or absorbed and damped particularly well by the filler 9.
- the filler 9 consists of a resin mixture which is hardened relatively well, but has significantly more ductile properties than the saw blade 2 itself.
- the portable sawing machine 10 shown in FIG. 2 has a saw blade holder 11, on which the saw blade 1 from FIG. 1 is arranged.
- the saw blade 1 is almost completely surrounded by a two-part saw blade guard 12.
- the saw blade protective hood 12 has a fixed first protective hood part 13 and a second protective hood part 15 which can be pivoted about a saw blade holder 14. Part 15 pivots when machining a workpiece (not shown here) in the direction of arrow 16 at least partially into the fixed protective hood part 13, so that a sufficiently large working area of the saw blade 1 is exposed during the machining of a workpiece.
- the saw blade 1 is driven by a machine motor 17.
- the sawing machine 10 has a first vibration damper 18 and a second vibration damper 19 in the area of the saw blade guard 12.
- a clamping system 21 is provided on a frame 20 of the sawing machine 10, with which a workpiece to be machined is clamped relative to the frame 20.
- the sawing machine 10 shown here is dimensioned with regard to its saw blade holder 11, its saw blade guard 12, its saw blade vibration damper 18, 19 and its clamping system 21 in such a way that it can easily accommodate the saw blade 1 with a diameter 6 of 405 mm.
- the saw blade guard 12 can surround the saw blade 1 arranged on the saw machine 10 as usual, the saw blade guard 12 has a protective hood inner radius 22 of 207.5 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005000381T DE112005000381D2 (en) | 2004-02-18 | 2005-02-16 | Saw blade, method for producing such a saw blade and portable sawing machine and use of a saw blade |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004008127.1 | 2004-02-18 | ||
DE102004008127 | 2004-02-18 | ||
DE102004029155A DE102004029155A1 (en) | 2004-02-18 | 2004-06-17 | Sawblade for portable a circular saw tool has a circular core disc of more than 355 mm diameter |
DE102004029155.1 | 2004-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005080039A1 true WO2005080039A1 (en) | 2005-09-01 |
Family
ID=34888797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/000267 WO2005080039A1 (en) | 2004-02-18 | 2005-02-16 | Saw blade, method for the production of such a saw blade, portable sawing machine, and use of a saw blade |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112005000381D2 (en) |
WO (1) | WO2005080039A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1563844A (en) * | 1923-10-01 | 1925-12-01 | William E Gerlach | Sawing machine |
US2440033A (en) * | 1945-02-19 | 1948-04-20 | George W Shema | Two man portable power saw |
US2563559A (en) * | 1949-12-22 | 1951-08-07 | Meyers W F Co | Circular saw having vibration damping means |
EP0065744A1 (en) * | 1981-05-21 | 1982-12-01 | Gebr. Heller Maschinenfabrik GmbH | Circular saw blade for ferrous materials, especially for steel |
JPH03277477A (en) * | 1990-03-22 | 1991-12-09 | Noritake Dia Kk | Diamond abrasive cutting wheel |
US6450075B1 (en) * | 1999-06-25 | 2002-09-17 | Alex Manzo | Ventilated air cooled cutting system |
-
2005
- 2005-02-16 WO PCT/DE2005/000267 patent/WO2005080039A1/en active Application Filing
- 2005-02-16 DE DE112005000381T patent/DE112005000381D2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1563844A (en) * | 1923-10-01 | 1925-12-01 | William E Gerlach | Sawing machine |
US2440033A (en) * | 1945-02-19 | 1948-04-20 | George W Shema | Two man portable power saw |
US2563559A (en) * | 1949-12-22 | 1951-08-07 | Meyers W F Co | Circular saw having vibration damping means |
EP0065744A1 (en) * | 1981-05-21 | 1982-12-01 | Gebr. Heller Maschinenfabrik GmbH | Circular saw blade for ferrous materials, especially for steel |
JPH03277477A (en) * | 1990-03-22 | 1991-12-09 | Noritake Dia Kk | Diamond abrasive cutting wheel |
US6450075B1 (en) * | 1999-06-25 | 2002-09-17 | Alex Manzo | Ventilated air cooled cutting system |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 016, no. 103 (M - 1221) 13 March 1992 (1992-03-13) * |
Also Published As
Publication number | Publication date |
---|---|
DE112005000381D2 (en) | 2006-10-26 |
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