EP0287847B1 - Cutting tool - Google Patents
Cutting tool Download PDFInfo
- Publication number
- EP0287847B1 EP0287847B1 EP88104896A EP88104896A EP0287847B1 EP 0287847 B1 EP0287847 B1 EP 0287847B1 EP 88104896 A EP88104896 A EP 88104896A EP 88104896 A EP88104896 A EP 88104896A EP 0287847 B1 EP0287847 B1 EP 0287847B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- channels
- cutting tool
- another
- tool according
- 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
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000010432 diamond Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 2
- 239000000919 ceramic Substances 0.000 claims 1
- 239000004567 concrete Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
- B24D5/123—Cut-off wheels having different cutting segments
-
- 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
- B28D1/121—Circular saw blades
Definitions
- the present invention relates to a cutting tool according to the preamble of claim 1.
- a saw blade is known from FR-A-1 232 580, the end faces of which, in a known manner, have continuously arranged cutting surfaces equipped with diamonds.
- this cutting surface has grooves on its side flanks which run over the height of the cutting segment, the grooves also opening into mud pockets formed in the saw blade in the edge region.
- these lateral grooves are not suitable for picking up and removing the cutting sludge accumulating on the peripheral surfaces. These grooves only have a positive effect on the free cutting behavior of the saw blade as a whole.
- FR-A-1 104 491 and FR-A-894 614 both relate to grinding wheels with which only surface processing is carried out. These grinding wheels show channels in the processing area that are used to discharge the cutting sludge.
- FR-A-1 104 941 shows a grinding wheel which is provided with circumferential grooves on the peripheral surface. A however, such a grinding wheel is not suitable for making saw cuts. Rather, it must be moved parallel to its axis of rotation in order to achieve a uniform grinding result.
- Cutting tools according to the preamble of claim 1 usually have metallic master blades, the diameter of which is up to 4 m. Cutting segments are attached to the circumference of the base sheet, which have industrial diamonds in a holding mass. The width of these diamond segments determines the cutting width.
- Master blades which are offset with the cutting segments designed according to the invention, have the essential advantage that the cutting mud is not only collected immediately after the emergence via the meandering, zigzag or undulating channels, but is also discharged directly into the notches or the channels, that end in the notches. If a plurality of cutting segments are arranged offset between two notches, the channels leading to the notches are formed by the space between the cutting segments.
- the cutting segments have at least one channel extending over their height, which promotes the discharge of the machined material.
- the course of the channel or channels can be substantially wavy, zigzag or meandering in the circumferential direction, but it is also provided that the or each channel is designed as a deep groove which runs obliquely or curved.
- Several grooves can be arranged in parallel or at the same distance; Groups of such grooves can cross, especially at an acute angle. According to the invention, good transport routes are thus created for the outflow of the chipped material, while at the same time achieving a higher cutting performance.
- the special design of the cutting segments also has the effect that a reduced amount on the side surfaces of the cutting segments Friction occurs, so that less frictional heat is generated and the cut produced has smoother contours than can be achieved with conventional, strongly rubbing cutting segments.
- the channels provided according to the invention additionally improve the cooling of the cutting segments, which results in longer tool lives.
- the designs of the cutting segments and their channels specified in the subclaims serve to further increase the cutting performance with improved material removal, which takes place both in the unfair direction and at right angles to it. Especially with serrated or serrated cutting segments, there is only edge friction on the outside, but a full-surface cut is still guaranteed. It is important that the individual cutting pieces of each cutting segment engage each other in such a way that there is no gap in the axial direction, but that there is full cross-sectional coverage.
- the channels form an arrow structure with respect to the circumferential direction, the removed material is continuously drained off well in the direction of flow, largely in the circumferential direction and partly also obliquely thereto, i. H. towards the side faces of the cutting gap.
- the cutting tool drawn in sections in FIGS. 1 to 3 has a master blade 10, on the circumference of which there are 12 notches 14 which separate individual cutting segments 16 from one another.
- Each cutting segment has grooves or ridges 18 which alternate with apex parts 20. Longitudinal channels 22 are thereby formed in the circumferential direction U. The surfaces of the cutting pieces are essentially parallel to one another at such a distance that there are no gaps in the axial direction A, but there is full cross-sectional coverage. As can be seen from FIGS. 1 and 2, both the cutting pieces and the channels 22 of the cutting segments each extend over their entire height h.
- the cutting segment surfaces can also be formed asymmetrically, e.g. B. sawtooth-shaped.
- Another embodiment is shown in FIG. 4.
- the longitudinal channels 22 are wave-shaped, so that there are softer transitions, which can promote the material discharge.
- the design is also chosen here so that the mutually opposing apex parts 20 ensure full cross-sectional coverage in the axial direction A.
- FIG. 5 Yet another embodiment is shown in FIG. 5.
- the cutting segment 16 shown here has, in addition to a central channel 24, which lies in the central plane 30 of the (here omitted) master sheet 10, also oblique side channels 26 and V channels 28. It can be seen that such cutting segments 16 have an arrow structure, due to the machined material is carried out particularly well both in the circumferential direction and at an angle to it. Since the individual cutting pieces have the same shape over the entire height (h), a uniform cut is also ensured if the effective height becomes less and less with increasing wear.
- Important advantages of the invention are based on the fact that, on the one hand, less frictional heat is generated as a result of reduced edge friction and, on the other hand, this is continuously dissipated well in each cutting segment thanks to the channel systems. This contributes significantly to increased tool life, increased cutting performance and smoother cutting surface.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Drilling Tools (AREA)
- Milling Processes (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Schneidwerkzeug gemäß dem Oberbegriff des Anspruches 1.The present invention relates to a cutting tool according to the preamble of claim 1.
Aus der FR-A-1 232 580 ist ein Sägeblatt bekannt, dessen Stirnflachen in bekannter Art und Weise durchgehend angeordnete mit Diamanten bestückte Schneidflächen aufweist. Als Besonderheit weist diese Schneidfläche an ihren Seitenflanken Nuten auf, die über die Höhe des Schneidsegmentes verlaufen, wobei die Nuten im Randbereich auch in in dem Sägeblatt ausgebildete Schlammtaschen münden. Diese seitlichen Nuten sind jedoch nicht geeignet, den auf den Umfangsflächen anfallenden Schneidschlamm aufzunehmen und abzutransportieren. Diese Nuten haben lediglich einen positiven Effekt für das Freischneideverhalten des Sägeblattes insgesamt.A saw blade is known from FR-A-1 232 580, the end faces of which, in a known manner, have continuously arranged cutting surfaces equipped with diamonds. As a special feature, this cutting surface has grooves on its side flanks which run over the height of the cutting segment, the grooves also opening into mud pockets formed in the saw blade in the edge region. However, these lateral grooves are not suitable for picking up and removing the cutting sludge accumulating on the peripheral surfaces. These grooves only have a positive effect on the free cutting behavior of the saw blade as a whole.
Die FR-A-1 104 491 und die FR-A-894 614 betreffen beide Schleifscheiben, mit denen lediglich eine Oberflächenbearbeitung durchgeführt wird. Diese Schleifscheiben zeigen in der Bearbeitungsfläche Kanäle, die zur Ableitung des Schneidschlammes dienen. Darüber hinaus zeigt die FR-A-1 104 941 eine Schleifscheibe, die auf der Umfangsfläche mit umlaufenden Nuten versehen ist. Eine derartige Schleifscheibe ist jedoch nicht geeignet, Sägeschnitte auszuführen. Diese muß vielmehr parallel zu ihrer Drehachse bewegt werden, um ein gleichmäßiges Schleifergebnis zu erzielen.FR-A-1 104 491 and FR-A-894 614 both relate to grinding wheels with which only surface processing is carried out. These grinding wheels show channels in the processing area that are used to discharge the cutting sludge. In addition, FR-A-1 104 941 shows a grinding wheel which is provided with circumferential grooves on the peripheral surface. A however, such a grinding wheel is not suitable for making saw cuts. Rather, it must be moved parallel to its axis of rotation in order to achieve a uniform grinding result.
Schneidwerkzeuge nach dem Oberbegriff des Anspruches 1 haben üblicherweise metallische Stammblätter, deren Durchmesser bis zu 4 m beträgt. Am Umfang des Stammblattes sind Schneidsegmente angebracht, welche Industriediamenten in einer Haltemasse aufweisen. Die Breite dieser Diamantsegmente bestimmt die Schnittbreite.Cutting tools according to the preamble of claim 1 usually have metallic master blades, the diameter of which is up to 4 m. Cutting segments are attached to the circumference of the base sheet, which have industrial diamonds in a holding mass. The width of these diamond segments determines the cutting width.
Man hat versucht, durch längere Schneidsegmente, also durch höheren anteiligen Besatz der Stammblatt-Umfangsfläche, die Schneidleistung zu steigern. Dies wird jedoch dadurch beeinträchtigt, daß das zerspante Material zwischen dem Werkstück und der äußeren Umfangsfläche des Schneidsegmentes wieder herausgeführt werden muß. Das erodierte Material muß also durch sich im Schneidsegment bildende flache Rillen oder Riefen abgeführt werden. Hierdurch entsteht eine hohe Reibungswärme. Beide Umstände bewirken einen beschleunigten Abtrag des Bindemittels für die Diamantkörner, so daß diese ausbrechen und ein erhöhter Verschleiß eintritt. Daher ist man gezwungen, einen Kompromiß zwischen der Einbettungs-Festigkeit des Bindemittels und dem möglichen Materialabtrag zu suchen.Attempts have been made to increase the cutting performance by means of longer cutting segments, that is to say a larger proportion of the circumferential surface of the master blade. However, this is adversely affected by the fact that the machined material between the workpiece and the outer peripheral surface of the cutting segment has to be removed again. The eroded material must therefore be discharged through shallow grooves or grooves formed in the cutting segment. This creates a high level of frictional heat. Both circumstances result in an accelerated removal of the binder for the diamond grains, so that they break out and increased wear occurs. It is therefore necessary to find a compromise between the embedding strength of the binder and the possible material removal.
Mithin besteht ein Bedürfnis an verbesserten Schneidwerkzeugen. Es ist ein wichtiges Ziel der Erfindung, unter überwindung der Nachteile des Standes der Technik mit wirtschaftlichen Mitteln ein Schneidwerkzeug der eingangs genannten Art so weiterzuentwickeln, daß die Schnittleistung gesteigert und das zerspante Material auf kurzem Wege ausgetragen wird, ohne daß der Werkzeugverschleiß zunähme.There is therefore a need for improved cutting tools. It is an important object of the invention, while overcoming the disadvantages of the prior art, to further develop a cutting tool of the type mentioned in the introduction in such a way that the cutting performance and the machined material are increased is carried out in a short way without increasing tool wear.
Die Aufgabe wird mit den Merkmalen des Anspruches 1 gelöst. Ausgestaltungen sind Gegenstand der Ansprüche 2 bis 7.The object is achieved with the features of claim 1. Refinements are the subject of claims 2 to 7.
Stammblätter, die mit den erfindungsgemäß ausgebildeten Schneidsegmenten versetzt sind, haben den wesentlichen Vorteil, daß über die mäander-, zickzack- oder wellenförmig ausgebildeten Kanäle der Schneidschlamm nicht nur unmittelbar nach dem Entstehen gesammelt sondern darüber hinaus unmittelbar in die Kerben oder die Kanäle abgeführt wird, die in die Kerben münden. Sofern zwischen zwei Kerben mehrere Schneidsegmente versetzt zueinander angeordnet sind, werden die zu den Kerben führenden Kanäle durch den Zwischenraum zwischen den Schneidsegmenten gebildet.Master blades, which are offset with the cutting segments designed according to the invention, have the essential advantage that the cutting mud is not only collected immediately after the emergence via the meandering, zigzag or undulating channels, but is also discharged directly into the notches or the channels, that end in the notches. If a plurality of cutting segments are arranged offset between two notches, the channels leading to the notches are formed by the space between the cutting segments.
Nach der Erfindung weisen die Schneidsegmente wenigstens einen über ihre Höhe reichenden Kanal auf, der den Austrag des zerspanten Materials fördert. Der Verlauf des Kanals oder der Kanäle kann in Umfangsrichtung im wesentlichen wellen-, zickzack- oder mäanderförmig sein, doch ist auch vorgesehen, den bzw. jeden Kanal als tiefe Rille auszubilden, die schräg oder gebogen verläuft. Mehrere Rillen können parallel bzw. abstandsgleich angeordnet sein; Gruppen solcher Rillen können sich kreuzen, insbesondere im spitzen Winkel. Erfindungsgemäß sind also gute Transportwege für den Abfluß des verspanten Materials geschaffen, während gleichzeitig eine höhere Schnittleistung erzielt wird. Die spezielle Gestaltung der Schneidsegmente bewirkt außerdem, daß an den Seitenflächen der Schneidsegmente eine verringerte Reibung auftritt, so daß entsprechend weniger Reibungswärme entsteht und der erzeugte Schnitt glattere Konturen hat, als das mit herkömmlichen, stark reibenden Schneidsegmenten erzielbar ist. Durch die erfindungsgemäß vorgesehenen Kanäle wird zusätzlich eine verbesserte Kühlung der Schneidsegmente bewirkt, was höhere Standzeiten zur Folge hat.According to the invention, the cutting segments have at least one channel extending over their height, which promotes the discharge of the machined material. The course of the channel or channels can be substantially wavy, zigzag or meandering in the circumferential direction, but it is also provided that the or each channel is designed as a deep groove which runs obliquely or curved. Several grooves can be arranged in parallel or at the same distance; Groups of such grooves can cross, especially at an acute angle. According to the invention, good transport routes are thus created for the outflow of the chipped material, while at the same time achieving a higher cutting performance. The special design of the cutting segments also has the effect that a reduced amount on the side surfaces of the cutting segments Friction occurs, so that less frictional heat is generated and the cut produced has smoother contours than can be achieved with conventional, strongly rubbing cutting segments. The channels provided according to the invention additionally improve the cooling of the cutting segments, which results in longer tool lives.
Die in den Unteransprüchen präzisierten Gestaltungen der Schneidsegmente und ihrer Kanäle dienen zu weiterer Steigerung der Schnittleistung mit verbesserter Materialabfuhr, die sowohl in Unfamgsrichtung als auch quer dazu vonstatten geht. Speziell bei gezackten oder gezahnten Schneidsegmenten tritt an den Außenseiten nur eine Kantenreibung auf, doch ist dennoch ein vollflächiger Schnitt gewährleistet. Wichtig ist ein derartiger gegenseitiger Formeingriff der einzelnen Schneidstücke jedes Schneidsegments, daß in Axialrichtung keine Lücke vorhanden, sondern volle Querschnitts-Überdeckung gegeben ist. Insbesondere wenn die Kanäle in bezug auf die Umfangsrichtung ein Pfeilstruktur bilden, wird das abgetragene Material fortlaufend in Strömungsrichtung gut abgeleitet, und zwar großenteils in Umfangsrichtung und teilweise auch schräg hierzu, d. h. auf die Seitenflächen des Schnittspalts zu gerichtet. Dieser hat einen sehr sauberen Fugenverlauf. Die einzelnen Schneidsegmente können dank der besseren Kühlung auch länger sein, so daß die Stammblatt-Umfangsfläche prozentual dichter besetzt ist. Gleichmäßige Schneidwirkung ist dabei über die gesamte Länge der Schneidsegmente sichergestellt. Dank der geringeren Reibung entstehen kleinere Schnittkräfte. Dadurch wird das Stammblatt entlastet und es kann entsprechend dünner ausgelegt werden.The designs of the cutting segments and their channels specified in the subclaims serve to further increase the cutting performance with improved material removal, which takes place both in the unfair direction and at right angles to it. Especially with serrated or serrated cutting segments, there is only edge friction on the outside, but a full-surface cut is still guaranteed. It is important that the individual cutting pieces of each cutting segment engage each other in such a way that there is no gap in the axial direction, but that there is full cross-sectional coverage. In particular, if the channels form an arrow structure with respect to the circumferential direction, the removed material is continuously drained off well in the direction of flow, largely in the circumferential direction and partly also obliquely thereto, i. H. towards the side faces of the cutting gap. This has a very clean joint course. Thanks to the better cooling, the individual cutting segments can also be longer, so that the circumferential surface of the base sheet is denser as a percentage. Uniform cutting action is ensured over the entire length of the cutting segments. Thanks to the lower friction, smaller cutting forces are created. This relieves the strain on the base sheet and can be designed accordingly thinner.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus dem Wortlaut der Ansprüche sowie aus der folgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Darin zeigen:
- Fig. 1
- eine Ausschnitt-Seitenansicht eines Schneidwerkzeugs,
- Fig. 2
- eine Ansicht entsprechend der Schnittlinie II-II in Fig. 1,
- Fig. 3
- eine Draufsicht auf das Schneidwerkzeug von Fig. 1,
- Fig. 4
- eine Draufsicht auf ein anderes Schneidsegment und
- Fig. 5
- eine Draufsicht auf eine weitere abgewandelte Schneidsegment-Ausführungsform.
- Fig. 1
- a detail side view of a cutting tool,
- Fig. 2
- 2 shows a view corresponding to section line II-II in FIG. 1,
- Fig. 3
- 2 shows a plan view of the cutting tool from FIG. 1,
- Fig. 4
- a top view of another cutting segment and
- Fig. 5
- a plan view of a further modified cutting segment embodiment.
Das in den Fig. 1 bis 3 ausschnittweise gezeichnete Schneidwerkzeug hat ein Stammblatt 10, an dessen Umfang 12 Kerben 14 vorhanden sind, welche einzelne Schneidsegmente 16 voneinander trennen.The cutting tool drawn in sections in FIGS. 1 to 3 has a
Jedes Schneidsegment hat Rillen oder Riefen 18, die sich mit Scheitelteilen 20 abwechseln. In Umfangsrichtung U sind dadurch Längskanäle 22 gebildet. Dabei stehen sich die Flächen der Schneidstücke im wesentlichen formparallel in solchem Abstand gegenüber, daß in Axialrichtung A keine Lücken vorhanden sind, sondern volle Querschnitts-Überdeckung besteht. Wie aus Fig. 1 und 2 ersichtlich ist, erstrecken sich sowohl die Schneidstücke als auch die Kanäle 22 der Schneidsegmente jeweils über ihre ganze Höhe h.Each cutting segment has grooves or
Abweichend von der in Fig. 3 gezeichneten Ausführungsform können die Schneidsegmentflächen auch unsymmetrisch gebildet sein, z. B. sägezahnförmig. Eine andere Ausführungsform ist in Fig. 4 dargestellt. Hier sind die Längskanäle 22 wellenförmig, so daß weichere Übergänge vorhanden sind, was den Materialaustrag fördern kann. Die Gestaltung ist auch hier so gewählt, daß die sich wechselseitig gegenüberstehenden Scheitelteile 20 in Axialrichtung A volle Querschnitts-Überdeckung gewährleisten.In a departure from the embodiment shown in FIG. 3, the cutting segment surfaces can also be formed asymmetrically, e.g. B. sawtooth-shaped. Another embodiment is shown in FIG. 4. Here, the
Noch ein anderes Ausführungsbeispiel ist in Fig. 5 gezeichnet. Das hier dargestellte Schneidsegment 16 hat außer einem Mittelkanal 24, welcher in der Mittelebene 30 des (hier weggelassenen) Stammblattes 10 liegt, noch schräge Seitenkanäle 26 und V-Kanäle 28. Man erkennt, daß derartige Schneidsegmente 16 eine Pfeilstruktur haben, durch die zerspantes Material besonders gut sowohl in Umfangsrichtung als auch schräg dazu ausgetragen wird. Da die einzelnen Schneidstükke gleiche Gestalt über die gesamte Höhe (h) aufweisen, ist ein gleichmäßiger Schnittverlauf auch sicher gestellt, wenn mit zunehmendem Verschleiß die wirksame Höhe immer geringer wird.Yet another embodiment is shown in FIG. 5. The cutting
Wichtige Vorteile der Erfindung beruhen darauf, daß einerseits infolge verringerter Kantenreibung weniger Reibungswärme entsteht und diese andererseits dank der Kanalsysteme in jedem Schneidsegment fortlaufend gut abgeführt wird. Das trägt wesentlich zu erhöhten Standzeiten, gesteigerter Schnittleistung und glatterem Schnittflächenverlauf bei.Important advantages of the invention are based on the fact that, on the one hand, less frictional heat is generated as a result of reduced edge friction and, on the other hand, this is continuously dissipated well in each cutting segment thanks to the channel systems. This contributes significantly to increased tool life, increased cutting performance and smoother cutting surface.
Sämtliche aus den Ansprüchen, der Beschreibung und der Zeichnung hervorgehenden Merkmale und Vorteile der Erfindung, einschließlich konstruktiver Einzelheiten, räumlicher Anordnungen und Verfahrensschritten, können sowohl für sich als auch in den verschiedensten Kombinationen erfindungswesentlich sein.All of the features and advantages of the invention arising from the claims, the description and the drawing, including structural details, spatial arrangements and method steps, can be essential to the invention both individually and in the most varied of combinations.
Claims (7)
- Cutting tool in the form of a circular saw blade, with diameters up to 4 m, for cutting natural stone, concrete, ceramics and the like, with a main blade (10) and with cutting segments (16) arranged on the periphery (12) thereof, consisting of a matrix with statistically distributed industrial diamond granules which are bonded in the matrix and comprise grooves or corrugations through which the removed material can be discharged, characterised in that the cutting segments (16) comprise at least two channels (22, 24) extending over their height (h) and full length, the channels being arranged parallel or with equal spacing, lie within the cutting segment and open either directly into the notches (14) or into a channel leading to these latter and formed by adjoining cut segments and that the channels (22, 24) so extend in corrugated, zig-zag or meander-like form in the circumferential direction (U) that a full-surface cut is obtained within each segment.
- Cutting tool according to claim 1, characterised in that groups of parallel or equally spaced channels intersect one another, more especially at an acute angle.
- Cutting tool according to claim 1 or 2, characterised in that the channels (22, 24) or at least some of them are formed between one another in the axial direction (A) with facing cutting segment surfaces.
- Cutting tool according to claim 3, characterised in that the cutting segments (16), in pairs or groups adjoining one another, comprise cutting elements which are arranged in toothed or nested form, by which the full cross-sectional covering is provided in the axial direction (A).
- Cutting tool according to claim 3 or 4, characterised in that adjoining cutting segment surfaces face one another with such a spacing that their vertex parts facing one another leave no gap in the axial direction (A).
- Cutting tool according to claim 5, characterised in that the adjacent cutting segment surfaces to be seen on the periphery (12) interengage in parallel form.
- Cutting tool according to at least one of the claims 3 to 6, characterised in that the adjacent cutting segment surfaces face one another in planes parallel to the mean plane (30) of the main plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88104896T ATE68401T1 (en) | 1987-04-16 | 1988-03-26 | CUTTING TOOL. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873712953 DE3712953A1 (en) | 1987-04-16 | 1987-04-16 | CUTTING TOOL |
| DE3712953 | 1987-04-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0287847A2 EP0287847A2 (en) | 1988-10-26 |
| EP0287847A3 EP0287847A3 (en) | 1989-05-03 |
| EP0287847B1 true EP0287847B1 (en) | 1991-10-16 |
Family
ID=6325775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88104896A Expired - Lifetime EP0287847B1 (en) | 1987-04-16 | 1988-03-26 | Cutting tool |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4940039A (en) |
| EP (1) | EP0287847B1 (en) |
| AT (1) | ATE68401T1 (en) |
| CA (1) | CA1311412C (en) |
| DE (2) | DE3712953A1 (en) |
| ES (1) | ES2023346T3 (en) |
| GR (1) | GR3002923T3 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399116A (en) * | 1993-08-27 | 1995-03-21 | Kennametal Inc. | Grinding wheel assembly for grinding and sizing an elastomeric belt |
| JP3004854B2 (en) * | 1993-11-30 | 2000-01-31 | ノリタケダイヤ株式会社 | Diamond cutting whetstone |
| PT1038647E (en) * | 1999-03-22 | 2003-11-28 | Geo S R L | CUTTING TOOL OF DIAMOND SEGMENTS WITH HEIGHT VARIABLE THICKNESS AND LENGTH |
| US6287186B1 (en) | 2000-09-01 | 2001-09-11 | Richard A. Miller, Jr. | Grinding wheel |
| IT1320257B1 (en) * | 2000-09-20 | 2003-11-26 | Giuseppe Marocco | TOOL WITH DIAMOND SEGMENTS FOR STONE CUTTING. |
| US6840851B1 (en) * | 2000-09-28 | 2005-01-11 | Inland Diamond Products Company | Bevel edging wheel with swarf clearance |
| DE10224596C1 (en) * | 2002-06-04 | 2003-11-20 | Krebs & Riedel Schleifscheiben | Diamond segment for cutting disc for natural or artificial stone and/or refractory material provided with radial notch extending from centre of segment working surface |
| DE10302318C1 (en) * | 2003-01-20 | 2003-11-20 | Klaus Eiche Diamantwerkzeuge G | Blade segment for cutting disc has side contact surfaces provided with recesses and projections forming corrugations reducing heating of workpiece during cutting |
| DE102005054389A1 (en) * | 2005-11-15 | 2007-05-16 | Bosch Gmbh Robert | cutting wheel |
| KR100725164B1 (en) * | 2006-03-17 | 2007-06-07 | 동영다이아몬드공업(주) | Processing tip and tools using the same |
| JP5764181B2 (en) | 2013-10-31 | 2015-08-12 | ユニオンツール株式会社 | Hard film coated cutting tool |
| US11173556B2 (en) * | 2017-05-11 | 2021-11-16 | Ikg Usa, Llc | Rotary serrator knife |
| USD1002319S1 (en) * | 2022-08-31 | 2023-10-24 | Procut Tool, Inc. | Diamond saw blade |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE364490C (en) * | 1922-11-27 | Hermann Hustedt | Grinding stone for wood grinders for producing wood pulp | |
| FR493533A (en) * | 1919-01-24 | 1919-08-12 | Louis Pierre Morin | Machine to doler and thin the skins |
| FR633633A (en) * | 1926-06-05 | 1928-02-01 | Arrangement of ridges or grooves for rotating cylinders used in knife sharpening machines | |
| US1965384A (en) * | 1930-02-10 | 1934-07-03 | Peter S Legge | Stone cutting tool |
| US2049874A (en) * | 1933-08-21 | 1936-08-04 | Miami Abrasive Products Inc | Slotted abrasive wheel |
| GB523879A (en) * | 1939-02-13 | 1940-07-24 | James Henry Fletcher | Improvements relating to abrasive wheels for surface, former and other grinding |
| FR894614A (en) * | 1943-02-05 | 1944-12-29 | Fromholt Et Janssens Ets | Improvements made to abrasive wheels |
| FR1104941A (en) * | 1954-05-19 | 1955-11-25 | Development of grinding wheels, in particular diamond wheels | |
| US3023551A (en) * | 1957-05-13 | 1962-03-06 | Bisterfeld & Stolting | Grinding wheel |
| BE568518A (en) * | 1958-06-11 | 1960-11-04 | ||
| NL112204C (en) * | 1959-04-20 | |||
| US3127887A (en) * | 1963-03-05 | 1964-04-07 | Super Cut | Diamond saw blade assembly for routing and regrooving concrete joints |
| US3371452A (en) * | 1965-02-08 | 1968-03-05 | Christensen Diamond Prod Co | Diamond saw or milling blades |
| US3711999A (en) * | 1971-02-01 | 1973-01-23 | G Held | Self-air cooling abrading wheel |
| US3742655A (en) * | 1972-01-14 | 1973-07-03 | Oliver Inc L | Abrading wheel |
| IT1167264B (en) * | 1983-10-07 | 1987-05-13 | Fernando Roffi | ORGAN PERFECTED FOR THE MECHANICAL CUTTING OF MARBLE, STONE, GRANITE AND SIMILAR, WHICH SECTOR OR DIAMOND SEGMENT, FIXED TO THE RELEVANT SUPPORT SOUL TOGETHER WITH OTHER EQUAL OR SIMILAR BODIES; AND PERFECTED DIAMOND DISC WITH AT LEAST PART OF ITS DIAMOND SECTORS STRUCTURED AS THE ABOVE |
-
1987
- 1987-04-16 DE DE19873712953 patent/DE3712953A1/en not_active Withdrawn
-
1988
- 1988-03-26 ES ES198888104896T patent/ES2023346T3/en not_active Expired - Lifetime
- 1988-03-26 DE DE8888104896T patent/DE3865500D1/en not_active Expired - Lifetime
- 1988-03-26 AT AT88104896T patent/ATE68401T1/en not_active IP Right Cessation
- 1988-03-26 EP EP88104896A patent/EP0287847B1/en not_active Expired - Lifetime
- 1988-04-15 CA CA000564253A patent/CA1311412C/en not_active Expired - Lifetime
-
1989
- 1989-08-08 US US07/391,678 patent/US4940039A/en not_active Expired - Fee Related
-
1991
- 1991-10-17 GR GR91401487T patent/GR3002923T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0287847A2 (en) | 1988-10-26 |
| GR3002923T3 (en) | 1993-01-25 |
| ATE68401T1 (en) | 1991-11-15 |
| ES2023346A4 (en) | 1992-01-16 |
| US4940039A (en) | 1990-07-10 |
| CA1311412C (en) | 1992-12-15 |
| DE3865500D1 (en) | 1991-11-21 |
| EP0287847A3 (en) | 1989-05-03 |
| ES2023346T3 (en) | 1992-06-01 |
| DE3712953A1 (en) | 1988-11-03 |
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