EP1820618B1 - Outil de coupe - Google Patents

Outil de coupe Download PDF

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Publication number
EP1820618B1
EP1820618B1 EP20060003107 EP06003107A EP1820618B1 EP 1820618 B1 EP1820618 B1 EP 1820618B1 EP 20060003107 EP20060003107 EP 20060003107 EP 06003107 A EP06003107 A EP 06003107A EP 1820618 B1 EP1820618 B1 EP 1820618B1
Authority
EP
European Patent Office
Prior art keywords
cutting tool
region
tool according
saw teeth
carrier
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.)
Not-in-force
Application number
EP20060003107
Other languages
German (de)
English (en)
Other versions
EP1820618A1 (fr
Inventor
Franz Egger
Karl Zepic
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.)
Tyrolit-Schleifmittelwerke Swarovski KG
Original Assignee
Tyrolit-Schleifmittelwerke Swarovski KG
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 Tyrolit-Schleifmittelwerke Swarovski KG filed Critical Tyrolit-Schleifmittelwerke Swarovski KG
Priority to EP20060003107 priority Critical patent/EP1820618B1/fr
Priority to BRPI0707793-9A priority patent/BRPI0707793B1/pt
Priority to PCT/AT2007/000061 priority patent/WO2007092975A1/fr
Publication of EP1820618A1 publication Critical patent/EP1820618A1/fr
Priority to US12/216,605 priority patent/US20080276781A1/en
Application granted granted Critical
Publication of EP1820618B1 publication Critical patent/EP1820618B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/127—Straight, i.e. flat, saw blades; strap 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
    • B23D61/12—Straight saw blades; Strap saw blades
    • B23D61/14—Straight saw blades; Strap saw blades with inserted saw teeth, i.e. the teeth being individually inserted
    • 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
    • Y10T83/9317—Endless band or belt type
    • 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 invention relates to a cutting tool according to the preamble of claim 1.
  • Generic cutting tools in the form of band saw are for example from the WO 03/059562 A1 known. Such cutting tools are used for example in the processing of rocks their use, the saw teeth of such cutting tools, for example by coatings on the grinding or cutting segments have different cutting properties and can be adapted to the material to be cut in an advantageous manner.
  • Object of the present invention is therefore to develop a generic cutting tool in which a higher cutting pressure and thus a larger feed can be achieved in the cutting operation on the sawtooth without individual saw teeth break off from the carrier.
  • the combination of a wide foot area with a narrow head area ensures, on the one hand, that the saw teeth have a high resistance to breakage and, at the same time, increased cutting pressure. In addition, the cost of materials per sawtooth is reduced, which reduces production costs.
  • the upper edge of the head area is substantially parallel to the lower edge of the foot area.
  • the upper edge of the head area will thus also be parallel to the cutting or running direction of the cutting tool, which makes it possible to use the cutting tool in both possible directions of travel.
  • the head area and the foot area form an L-shape in side view.
  • Such an L-shape ensures a high feed and a clean cut with very good stability of the sawtooth.
  • the heating of such a saw tooth is reduced over the prior art with rectangular saw teeth. It has proved to be advantageous if the L-shaped saw teeth point against the running direction of the cutting tool. In other words, should in the preferred case, the long side edge of the sawtooth point in the cutting direction.
  • the head area and the foot area in side view form a wrong T.
  • the cutting tool can be used in both cutting directions without the cutting properties changing when the direction of the cutting direction changes.
  • the cutting tool or the saw teeth then adhere particularly well to the carrier and at the same time have an ideal cutting performance when the ratio of the width of the head region to the width of the foot region is 0.8 to 0.4, preferably 0.7 to 0, 5, is, more preferably about 0.6.
  • the ratio of the width of the head region to the height of the head region is approximately 1: 1.
  • the ratio of the width of the foot region to the total height of the saw teeth is between 2: 1 and 1: 2.
  • the actual width of the foot area is in preferred variants below 15 mm, more preferably between 8 and 12 mm.
  • the wear on the sawtooth or the cutting tool are relatively low and thus the heating of the sawtooth or the cutting tool during operation is also as low as possible, it has proved to be advantageous if the thickness of the saw teeth in the foot is less than the thickness in the head area ,
  • the upper edge has a curvature in the head area. Such a variant is used when the material to be cut makes it necessary.
  • the upper edge in the head area is chamfered at least in regions.
  • Such variants will also be chosen depending on the material to be cut.
  • the carrier has a coating.
  • Such coatings keep the negative influences by a coolant and aggressive rock sludge in the rock cut and thus extend the durability of the cutting tool.
  • the coating is a galvanizing. It is preferably provided that the coating material has material powder for improving the durability and that the coating comprises SnZuCo, CuSnZu and / or matt nickel.
  • the Fig. 1 shows a cutting tool 1 in the form of a saw band with a support 2 and a plurality of saw teeth 3, wherein the saw teeth 3 have a head portion 4 and a foot portion 5 and wherein the saw teeth 3 are welded to the base 2 at the foot portion 5 via an intermediate piece 8 , In this case, the head portion 4 is narrower than the foot area 5.
  • the embodiment shown shows a saw blade, which of course also circular saw blades, drill bits, etc. are provided in the context of the invention. Under drill bits are understood cutting tools 1 with a cylindrical support 2, on which the saw teeth 3 are mounted like battlements on a tower. In the present embodiment, the saw teeth 3 were first placed on the intermediate piece 8 and then sintered on and the intermediate piece 8 was then welded onto the carrier 2.
  • the carrier 2 can for example consist of 48CrMoV67, the intermediate pieces, for example, 25CrMo4.
  • the abrasive segments 9, 10 of the sawtooth 3 may have higher cutting agent concentration, for example, the use of diamond grain is suitable as a cutting means.
  • a sintered bond a mixture has proven that contains at least two of the elements iron, cobalt, copper, tungsten, tin and nickel. It is advantageous if the saw teeth contain sinterable binder, so that the cutting teeth 3 can be sintered onto the spacers 8 in a simple manner according to a conventional manner.
  • the Fig. 1 is indicated by the reference numeral "L" the preferred direction of the cutting tool.
  • the approximately L-shaped saw teeth are oriented with their long side edge in the cutting direction or running direction.
  • the height of the carrier 2 is in present embodiment about 80 mm, the distance a between two saw teeth 3 in this embodiment is about 28 mm and the total height of a saw tooth plus spacer is about 1 cm.
  • this is only a variant that has proven to be favorable for certain materials to be cut. It can be up to the skilled person at which distance the saw teeth 3 are arranged to each other or what exact dimension they have.
  • Fig. 2a is the section "A" of Fig. 1 again shown in more detail.
  • the upper edge 6 of the head region 4 can be seen, which is substantially parallel to the lower edge 11 of the foot region 5.
  • the edge is also parallel to the running direction L of the cutting tool 1.
  • the cross-sectional representation ( Fig. 2b ) of the view A is also the exact structure of the sawtooth 3 can be seen.
  • the sawtooth 3 is attached to the intermediate piece 8 and sintered, this intermediate piece 8 is welded to the carrier 2.
  • the sawtooth 3 has laterally arranged grinding segments 9, 10.
  • the sawtooth 3 widens towards the head area 4 to allow a more stable cut during operation. With the groove-shaped recess 12 in the sawtooth 3 and the spring-like projection 13 of the intermediate piece 8, which extends into the sawtooth 3, an even better hold of the sawtooth 3 on the intermediate piece 8 is achieved.
  • Fig. 3a a further embodiment of an approximately L-shaped sawtooth 3 is shown, wherein the height hk of the head portion 4 is about the same height as the height hf of the foot segment 5.
  • the same reference numerals are used in all figures, which is why not here more reference is made to each reference.
  • the embodiment according to FIG Fig. 3 Particularly favorable when cutting very hard materials with the cutting tool 1.
  • the sawtooth 3 becomes conically wider at the top, ie that the width f of the foot region 5 is not the point with the greatest width of the sawtooth 3 but along the edge B, as shown here, ie on the upper side of the foot region 5 It is favorable if the border between head area 4 and foot area 5 is rounded off with the radius R, the size of R depending on the stress on the notch and here at least 1 mm is. On average ( Fig. 3b ) Through the sawtooth 3 together with spacer 8 is also seen that the thickness df of the foot portion 5 is less than the thickness dk of the head portion 4 and that the spacer 8 has an even smaller thickness z.
  • the upward increasing thickness of the sawtooth 3 is achieved by the angle ⁇ , ie the angle between the side edge of a grinding segment 9, 10 and upper edge 6 in cross section at 90 °, for example about 89 °.
  • a further embodiment of a sawtooth 3 according to the invention is shown, in which case the head portion 4 with the foot portion 5 forms an upside down T.
  • Such a sawtooth 3 is favorable when the cutting tool 1 is to be used in both directions K.
  • the spacers 8 are welded by laser welding to the carrier 2.
  • the carrier tape 2 has a thickness between 0.9 mm and 2.2 mm, preferably of about 1.65 mm.
  • 48CrMoV67 in particular has proved to be a steel.
  • the intermediate pieces 8 consist of a steel with a carbon content of less than 0.35% or a carbon equivalent of less than 0.75%, in particular St 52 or 25CrMo 4, good weldability of spacers 8 and carrier 2 is ensured.
  • the saw teeth 3 In order not to hinder the circulation of the band saw on rollers of the band saw machine, it is preferably provided that the saw teeth 3 have a height h between 8 mm and 15 mm, preferably of about 10.5 mm.
  • the necessary hardness of the abrasive segments 9,10, which is necessary when used in the rock, is achieved by the use of diamond grain as a cutting means.
  • a sintered bond a mixture has proven that contains at least two of the elements iron, cobalt, copper, tungsten, tin and nickel.
  • the in the Fig. 1 Band saw shown has a carrier 1, which consists of 48CrMoV67.
  • the according to the formula C a C + (Mn / 6) + (Cr / 5) + (Ni / 15) + (Mo / 4) calculated carbon equivalent is above 0.95%.
  • the height of the carrier tape 1 is about 80 mm, the thickness of about 1.65 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (12)

  1. Outil de coupe (1), comportant un support (2) et une pluralité de dents de scie (3), lesdites dents de scie (3) comportant une partie supérieure (4) et une partie inférieure (5), lesdites dents de scie (3) étant soudées par leur partie inférieure (5) au support (2) par l'intermédiaire de pièces intercalaires (8) insérées entre le support (2) et la dent de scie (3), caractérisé en ce que, sur une vue de profil, la partie supérieure (4) est plus étroite que la partie inférieure (5) et en ce que la partie supérieure (4) et la partie inférieure (5) présentent, sur une vue de profil, une forme en L ou en T renversé.
  2. Outil de coupe selon la revendication 1, caractérisé en ce que le bord supérieur (6) de la partie supérieure (4) est sensiblement parallèle au bord inférieur (11) de la partie inférieure (5).
  3. Outil de coupe selon la revendication 1 ou la revendication 2, caractérisé en ce que le rapport de la largeur (k) de la partie supérieure (4) sur la largeur (f) de la partie inférieure (5) est de 0,8 à 0,4, de préférence de 0,7 à 0,5, encore mieux est de l'ordre de 0,6.
  4. Outil de coupe selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le rapport de la largeur (k) de la partie supérieure (4) sur la hauteur (hk) de la partie supérieure (4) est sensiblement de l'ordre de 1:1.
  5. Outil de coupe selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le rapport de la largeur (f) de la partie inférieure (5) sur la hauteur totale (h) des dents de scie (3) est compris entre 2:1 et 1:2.
  6. Outil de coupe selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'épaisseur (df) des dents de scie (3) dans la partie inférieure (5) est inférieure à l'épaisseur (dk) dans la partie supérieure (4).
  7. Outil de coupe selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le rapport de l'épaisseur (dk) dans la partie supérieure (4) sur la largeur (f) des dents de scie (3) est compris entre 1:4 et 1:2.
  8. Outil de coupe selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le bord supérieur (6) dans la partie supérieure (4) comporte une courbure.
  9. Outil de coupe selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le bord supérieur (6) dans la partie supérieure (4) est biseauté au moins par zones.
  10. Outil de coupe selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le support (2) possède un revêtement.
  11. Outil de coupe selon la revendication 10, caractérisé en ce que le revêtement est un zingage.
  12. Outil de coupe selon la revendication 11, caractérisé en ce que le revêtement comporte du SnZnCo, du CuSnZn et/ou du nickel mat.
EP20060003107 2006-02-16 2006-02-16 Outil de coupe Not-in-force EP1820618B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20060003107 EP1820618B1 (fr) 2006-02-16 2006-02-16 Outil de coupe
BRPI0707793-9A BRPI0707793B1 (pt) 2006-02-16 2007-02-06 Snipping tool
PCT/AT2007/000061 WO2007092975A1 (fr) 2006-02-16 2007-02-06 Outil de coupe
US12/216,605 US20080276781A1 (en) 2006-02-16 2008-07-08 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060003107 EP1820618B1 (fr) 2006-02-16 2006-02-16 Outil de coupe

Publications (2)

Publication Number Publication Date
EP1820618A1 EP1820618A1 (fr) 2007-08-22
EP1820618B1 true EP1820618B1 (fr) 2013-04-10

Family

ID=36648614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060003107 Not-in-force EP1820618B1 (fr) 2006-02-16 2006-02-16 Outil de coupe

Country Status (4)

Country Link
US (1) US20080276781A1 (fr)
EP (1) EP1820618B1 (fr)
BR (1) BRPI0707793B1 (fr)
WO (1) WO2007092975A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9168599B2 (en) * 2011-11-17 2015-10-27 Les Equipements Prenbec Inc. Saw disk with improved chip discharge
EP2799177A1 (fr) * 2013-04-30 2014-11-05 HILTI Aktiengesellschaft Lame de scie circulaire dotée d'une surface de contact accrue avec les éléments de coupe
FR3007311B1 (fr) * 2013-06-19 2015-12-11 Mecachrome France Dispositif et procede de decoupe de pieces en materiau metallique ou composite et pieces obtenues avec un tel procede.

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9847A (en) * 1853-07-12 seely
US74522A (en) * 1868-02-18 And william s
US1967020A (en) * 1932-09-17 1934-07-17 Clemson Bros Inc Antifriction tool
DE834449C (de) * 1951-01-12 1952-03-20 Alfred Roentgen Saegeband fuer Bandsaegen fuer Holz- und Metallbearbeitung
US2994350A (en) * 1958-02-13 1961-08-01 Lundberg Gunnar Karl Gosta Saw with insert teeth
GB1466453A (en) * 1973-05-28 1977-03-09 Metalcut Ab Centro Circular saw blade
US4173914A (en) * 1977-09-06 1979-11-13 Vollmer Of America Corporation Cutting teeth for circular saw blades
DE2803850A1 (de) * 1978-01-30 1979-08-02 Steinbearbeitungs Maschinenfab Werkzeug fuer eine saegevorrichtung, insbesondere zum saegen von stein
JPH0620663B2 (ja) * 1986-01-31 1994-03-23 兼房株式会社 鉄鋼材料切断用超硬質チップ付丸鋸
JPS63110318U (fr) * 1987-01-12 1988-07-15
JPH09216121A (ja) * 1996-02-14 1997-08-19 Tsune Wagner Carbide:Kk 丸 鋸
GB9915705D0 (en) * 1999-07-05 1999-09-08 C4 Carbides Plc A method of making a saw blade
ATE291652T1 (de) * 1999-11-10 2005-04-15 Graf & Co Ag Sägezahndraht
JP2002200522A (ja) * 2000-12-28 2002-07-16 Hitachi Koki Co Ltd 切断用ブレード
US6735876B2 (en) * 2001-03-01 2004-05-18 Makita Corporation Blade clamps suitable for reciprocating power tools
US6931975B2 (en) * 2001-08-10 2005-08-23 Keith Louis Haughton Circular saw blade
EP1332822B1 (fr) * 2002-01-16 2007-08-15 Tyrolit Schleifmittelwerke Swarovski KG Scie à ruban
DE20203166U1 (de) * 2002-03-01 2002-07-04 Dronco Ag Trennscheibe mit metallgebundenen Diamantschleifkörnern
US20050268768A1 (en) * 2002-06-19 2005-12-08 Johnson David N Circular saw blade for cutting ferous materials
US20050178263A1 (en) * 2004-02-17 2005-08-18 David Szymanski Wood cutting saw chain and replaceable cutting members

Also Published As

Publication number Publication date
US20080276781A1 (en) 2008-11-13
BRPI0707793A2 (pt) 2011-05-10
BRPI0707793B1 (pt) 2018-01-30
EP1820618A1 (fr) 2007-08-22
WO2007092975A1 (fr) 2007-08-23

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