WO1998013165A1 - Sawing machine - Google Patents

Sawing machine Download PDF

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Publication number
WO1998013165A1
WO1998013165A1 PCT/FI1997/000536 FI9700536W WO9813165A1 WO 1998013165 A1 WO1998013165 A1 WO 1998013165A1 FI 9700536 W FI9700536 W FI 9700536W WO 9813165 A1 WO9813165 A1 WO 9813165A1
Authority
WO
WIPO (PCT)
Prior art keywords
blades
sawing device
rotatable frame
power unit
sawing
Prior art date
Application number
PCT/FI1997/000536
Other languages
French (fr)
Inventor
Ahti Niemelä
Original Assignee
Niemelae Ahti
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
Priority claimed from FI963788A external-priority patent/FI963788A0/en
Priority claimed from FI965023A external-priority patent/FI965023A0/en
Application filed by Niemelae Ahti filed Critical Niemelae Ahti
Priority to AU43031/97A priority Critical patent/AU4303197A/en
Priority to DK97919063T priority patent/DK0932469T3/en
Priority to DE1997616757 priority patent/DE69716757T2/en
Priority to AT97919063T priority patent/ATE226863T1/en
Priority to US09/269,354 priority patent/US6158318A/en
Priority to EE9900123A priority patent/EE04102B1/en
Priority to CA 2266548 priority patent/CA2266548C/en
Priority to EP97919063A priority patent/EP0932469B1/en
Publication of WO1998013165A1 publication Critical patent/WO1998013165A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/18Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4691Interrelated control of tool and work-feed drives
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4757Tool carrier shuttles rectilinearly parallel to direction of work feed
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4766Orbital motion of cutting blade
    • Y10T83/478Endless belt or chain tool carrier
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4766Orbital motion of cutting blade
    • Y10T83/4789Rotatable disc-type tool on orbiting axis
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4766Orbital motion of cutting blade
    • Y10T83/4795Rotary tool
    • Y10T83/4812Compound movement of tool during tool cycle
    • Y10T83/4815Axial reciprocation of tool

Definitions

  • the present invention relates to a sawing device as defined in the preamble of claim 1.
  • the slowness of sawing is a particularly bad problem in industries where there is a need for large quantities of relatively short fixed-length timber pieces, for example in furniture industry, prefabricated building industry and parquet industry.
  • the object of the invention is to eliminate the drawbacks referred to above.
  • a specific object of the invention is to produce a new type of sawing device that enables long timber to be accurately cut into fixed- length pieces in a continuous process as fast as possible.
  • the sawing device of the invention comprises a conveyor for conveying the timber to be sawn and blades for cutting the timber at desired points, said blades being rotated by a first power unit and disposed in a transverse position relative to the lengthways direction of the timber to be sawn.
  • the sawing device comprises a rotatable frame rotated by a second power unit and supporting the blades, of which there are preferably at least two.
  • the sawing device comprises a third power unit and, in the rotatable frame, guide rails along which the blades can be moved back and forth by means of the third power unit in the direction of the axles of the blades, i.e. in the longitudinal direction of the timber to be sawn.
  • the rotatable frame preferably comprises blade axles disposed at the same distance from the axle of the rotatable frame and parallel to it.
  • the blades are preferably supported by separate blade holders movable along guide bars parallel to the axles of the blades.
  • the back-and- forth movement of the blades in the direction of their axles is preferably implemented using a motion chain, which is connected to the blade holders and can be moved back and forth.
  • none of the power units is mounted on the rotatable frame, but the first, second and third power units are mounted outsi- de the rotatable frame and coupled via concentric axles to the rotatable frame.
  • the third power unit which moves the blades back and forth in the direction of the axles, is preferably arranged to work in synchronism with the conveyor that moves the timber to be sawn, in such manner that the velocity of motion of the sawing blade in the direction of its axle is always the same as the velocity of the timber moving on the conveyor.
  • the sawing device of the invention preferably has two sawing blades mounted in the rotatable frame, but the number of blades can also be considerably larger, in which a lower speed of rotation of the rotatable frame will result in the same sawing efficiency.
  • the sawing device of the invention has significant advantages as compared with prior art.
  • the pro- duction of a large number of fixed-size pieces of wood is not an intermittent but a continuous and smooth process in which the timber to be processed is moving at a constant speed throughout the sawing process .
  • the sawing de- vice can cut three fixed-size pieces of 60 cm per second, and even more.
  • the sawing device of the invention presented in the drawing comprises a suitable conveyor 1 together with its power units 18 for moving an object to be sawn 19 in its lengthways direction.
  • the sawing de- vice comprises a rotatable frame 6, which is supported by its axle 12, which in turn is supported on the frame 20 of the sawing device.
  • a second power unit 5 is arranged to rotate the rotatable frame 6 about its axle 12.
  • Mounted between the two end pieces of the rotatable frame 6 and parallel to the axle 12 are a first pair of guide bars 8 and a second pair of guide bars 9 as well as a first blade axle 10 and a second blade axle 11.
  • Supported on the first guide bars 8 and the first blade axle 10 is a first blade holder 13, which carries a first blade 3.
  • a sec- ond blade holder 14 carrying a second blade 4 is supported on the second blade axle 11 and the second guide bars 9.
  • the blade axles 10 and 11 are coupled via power transmission belts 21 to an axle 16 concentric with the axle 12 of the rotatable frame 6 and mounted inside it and coupled to a first power unit 2, which is mounted on the frame 20, to rotate the blades 3 and 4.
  • the blade holders 13 and 14 supported on the guide bars 8 and 9 are attached to a motion chain 15, which moves back and forth on chain wheels 15.
  • the chain wheels are rotated back and forth by means of a third power unit 7, which is coupled to the chain wheels via an axle 17 concentric with the axle of the rotatable frame and mounted inside it .
  • the sawing device presented in the drawings works as follows.
  • the first power unit 2 rotates the saw blades 3 and 4 while the second power unit 5 rotates the rotatable frame 6 at a suitable speed.
  • the third power unit 7 moves the blade holders 13 and 14 and the sawing blades 3 and 4 rotating with these back and forth in the direction of motion of the object to be sawn so that when one of the blade holders is moving forward, the other one is moving backward.
  • the sawing blade touches the moving object to be sawn while itself moving at the speed of the object in the same direction and, after cutting the object, moves aside and returns back to the starting position of a new sawing operation.
  • the other saw blade performs corresponding sawing and returning actions on the opposite side of the common rotation axis of the saw blades .
  • the synchronisation of the motors in the sawing device and of their movements can be implemented using electronic or mechanical means known in themselves.
  • the blades 3 and 4 are preferably rotated continuously by means of the first power unit 2, but the rotation of the rotatable frame 6 by the second power unit 5 and the back-and- forth motion of the blades produced by the third power unit 7 may be either continuous or intermittent according to need, depending e.g. on the quality of the object to be sawn, on the blades being used, the length of the pieces to be cut, and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Dicing (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Pinball Game Machines (AREA)

Abstract

A sawing device for sawing a long object to a fixed size, said sawing device comprising a conveyor (1) for conveying the object to be sawn and blades (3, 4) rotated by a first power unit (2) for cutting the object. The sawing device comprises a rotatable frame (6) rotated by a second power unit (5), the blades (3, 4) bein supported by said rotatable frame, a third power unit (7) and guide bars (8, 9) in the rotatable frame to allow the blades (3, 4) to be moved back and forth by the third power unit along the guide bars in the longitudinal direction of the object to be sawn.

Description

SAWING MACHINE
The present invention relates to a sawing device as defined in the preamble of claim 1.
Traditionally, long timber is sawn to a fixed size by moving the timber against a stopper adjusted to a suitable position with respect to the saw blade used, so that when the timber is in position the saw blade cuts a piece of desired fixed length off the timber. The fixed-length piece is then removed and the timber to be sawn is further advanced longitudinally against the stopper. In this manner, sawing is continued in stages by moving the timber and then sawing it . The main problem with present sawing equipment and methods used to cut timber to a fixed size is that they are slow, which is due to the intermittent nature of the sawing. As the cutting operation itself is a relatively fast action, most of the time is consumed while the saw blade is waiting for the timber to be moved into the sawing position against the stopper. The slowness of sawing is a particularly bad problem in industries where there is a need for large quantities of relatively short fixed-length timber pieces, for example in furniture industry, prefabricated building industry and parquet industry. The object of the invention is to eliminate the drawbacks referred to above. A specific object of the invention is to produce a new type of sawing device that enables long timber to be accurately cut into fixed- length pieces in a continuous process as fast as possible.
As for the features characteristic of the sawing device of the invention, reference is made to the claims .
The sawing device of the invention comprises a conveyor for conveying the timber to be sawn and blades for cutting the timber at desired points, said blades being rotated by a first power unit and disposed in a transverse position relative to the lengthways direction of the timber to be sawn. According to the invention, the sawing device comprises a rotatable frame rotated by a second power unit and supporting the blades, of which there are preferably at least two. Moreover, the sawing device comprises a third power unit and, in the rotatable frame, guide rails along which the blades can be moved back and forth by means of the third power unit in the direction of the axles of the blades, i.e. in the longitudinal direction of the timber to be sawn.
Thus, as the axes of rotation of the blades and the axis of rotation of the rotatable frame are parallel to each other and parallel to the direction of motion of the timber to be sawn, it is possible, by rotating the blades and the rotatable frame supporting them, to cut the timber to a fixed size while the timber is in continuous and steady motion, by only moving the blades back and forth in the direction of their axles at the velocity of motion of the timber.
The rotatable frame preferably comprises blade axles disposed at the same distance from the axle of the rotatable frame and parallel to it. The blades are preferably supported by separate blade holders movable along guide bars parallel to the axles of the blades.
The back-and- forth movement of the blades in the direction of their axles is preferably implemented using a motion chain, which is connected to the blade holders and can be moved back and forth.
In a preferred embodiment, none of the power units is mounted on the rotatable frame, but the first, second and third power units are mounted outsi- de the rotatable frame and coupled via concentric axles to the rotatable frame. The third power unit, which moves the blades back and forth in the direction of the axles, is preferably arranged to work in synchronism with the conveyor that moves the timber to be sawn, in such manner that the velocity of motion of the sawing blade in the direction of its axle is always the same as the velocity of the timber moving on the conveyor.
The sawing device of the invention preferably has two sawing blades mounted in the rotatable frame, but the number of blades can also be considerably larger, in which a lower speed of rotation of the rotatable frame will result in the same sawing efficiency.
The sawing device of the invention has significant advantages as compared with prior art. The pro- duction of a large number of fixed-size pieces of wood is not an intermittent but a continuous and smooth process in which the timber to be processed is moving at a constant speed throughout the sawing process . Thus, for example, from a normal board the sawing de- vice can cut three fixed-size pieces of 60 cm per second, and even more.
In the following, the invention will be described in detail by referring to the attached drawing, which presents an axonometric diagram of a sawing device according to the invention.
The sawing device of the invention presented in the drawing comprises a suitable conveyor 1 together with its power units 18 for moving an object to be sawn 19 in its lengthways direction. The sawing de- vice comprises a rotatable frame 6, which is supported by its axle 12, which in turn is supported on the frame 20 of the sawing device. Supported on the frame 20, a second power unit 5 is arranged to rotate the rotatable frame 6 about its axle 12. Mounted between the two end pieces of the rotatable frame 6 and parallel to the axle 12 are a first pair of guide bars 8 and a second pair of guide bars 9 as well as a first blade axle 10 and a second blade axle 11. Supported on the first guide bars 8 and the first blade axle 10 is a first blade holder 13, which carries a first blade 3. In the same way, a sec- ond blade holder 14 carrying a second blade 4 is supported on the second blade axle 11 and the second guide bars 9. The blade axles 10 and 11 are coupled via power transmission belts 21 to an axle 16 concentric with the axle 12 of the rotatable frame 6 and mounted inside it and coupled to a first power unit 2, which is mounted on the frame 20, to rotate the blades 3 and 4.
The blade holders 13 and 14 supported on the guide bars 8 and 9 are attached to a motion chain 15, which moves back and forth on chain wheels 15. The chain wheels are rotated back and forth by means of a third power unit 7, which is coupled to the chain wheels via an axle 17 concentric with the axle of the rotatable frame and mounted inside it . The sawing device presented in the drawings works as follows. The first power unit 2 rotates the saw blades 3 and 4 while the second power unit 5 rotates the rotatable frame 6 at a suitable speed. The third power unit 7 moves the blade holders 13 and 14 and the sawing blades 3 and 4 rotating with these back and forth in the direction of motion of the object to be sawn so that when one of the blade holders is moving forward, the other one is moving backward. Thus, when the device is in operation, as the conveyor 1 is moving the object at the same speed as the third power unit 7 is moving the blades in the longitudinal direction of the object, when the sawing blade engages the object, it will be moving at the speed of the object, cut it through and leave the object area before stop- ping and returning to the first end of the rotatable frame . Thus, in the sawing device the sawing blade touches the moving object to be sawn while itself moving at the speed of the object in the same direction and, after cutting the object, moves aside and returns back to the starting position of a new sawing operation. At the same time, the other saw blade performs corresponding sawing and returning actions on the opposite side of the common rotation axis of the saw blades . The synchronisation of the motors in the sawing device and of their movements can be implemented using electronic or mechanical means known in themselves. The blades 3 and 4 are preferably rotated continuously by means of the first power unit 2, but the rotation of the rotatable frame 6 by the second power unit 5 and the back-and- forth motion of the blades produced by the third power unit 7 may be either continuous or intermittent according to need, depending e.g. on the quality of the object to be sawn, on the blades being used, the length of the pieces to be cut, and so on.
The invention has been described above as an example by the aid of the attached drawing, but different embodiments of the invention are possible within the framework of the inventive idea defined by the claims.

Claims

1. Sawing device for sawing a long object to a fixed size, said sawing device comprising a conveyor (1) for conveying the object to be sawn and a blades (3, 4) rotated by a first power unit (2) for cutting the object, charac t e ri zed in that the sawing device comprises
- a rotatable frame (6) rotated by a second power unit (5), the blades (3, 4) being supported by said rotatable frame,
- a third power unit (7) and
- guide bars (8, 9) in the rotatable frame to allow the blades (3, 4) to be moved back and forth by the third power unit along the guide bars in the lon- gitudinal direction of the object to be sawn.
2. Sawing device as defined in claim 1, charac teri z ed in that the rotatable frame (6) comprises blade axles (10, 11} disposed at the same distance from the axle (12) of the rotatable frame and parallel to it.
3. Sawing device as defined in claim 1, cha racte r i z ed in that the blades (3, 4) are supported by blade holders (13, 14) movable along the guide bars (8, 9) .
4. Sawing device as defined in claim 3, cha rac teri z ed in that the blade holders (13, 14) are connected to a motion chain (15) which can be moved back and forth.
5. Sawing device as defined in any one of claims 1 - 4, characteri zed in that the first, second and third power units (2, 5, 7) are coupled via concentric axles (16, 12, 17) to the rotatable frame (6) .
6. Sawing device as defined in any one of claims 1 - 5, charact eri zed in that the third power unit (7) is arranged to move the blades (3, 4) at the velocity of motion of the object to be sawn and in the direction of motion of the conveyor (1) .
7. Sawing device as defined in any one of claims 1 - 6, charac teri zed in that it has at least three blades supported by the rotatable frame and movable back and forth in the longitudinal direction of the object to be sawn.
8. Sawing device as defined in any one of claims 1 - 7, charac t er i zed in that the blades (3, 4) are discoid circular-saw blades.
9. Sawing device as defined in any one of claims 1 - 8, cha ra c t e ri zed in that the object to be sawn is timber.
PCT/FI1997/000536 1996-09-23 1997-09-09 Sawing machine WO1998013165A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU43031/97A AU4303197A (en) 1996-09-23 1997-09-09 Sawing machine
DK97919063T DK0932469T3 (en) 1996-09-23 1997-09-09 sawing machine
DE1997616757 DE69716757T2 (en) 1996-09-23 1997-09-09 sawing machine
AT97919063T ATE226863T1 (en) 1996-09-23 1997-09-09 SAW MACHINE
US09/269,354 US6158318A (en) 1996-09-23 1997-09-09 Sawing machine
EE9900123A EE04102B1 (en) 1996-09-23 1997-09-09 Sawing device for sawing a fixed object of a long object
CA 2266548 CA2266548C (en) 1996-09-23 1997-09-09 Sawing machine
EP97919063A EP0932469B1 (en) 1996-09-23 1997-09-09 Sawing machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI963788A FI963788A0 (en) 1996-09-23 1996-09-23 Saoganordning
FI963788 1996-09-23
FI965023A FI965023A0 (en) 1996-12-13 1996-12-13 Saoganordning
FI965023 1996-12-13

Publications (1)

Publication Number Publication Date
WO1998013165A1 true WO1998013165A1 (en) 1998-04-02

Family

ID=26160218

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000536 WO1998013165A1 (en) 1996-09-23 1997-09-09 Sawing machine

Country Status (10)

Country Link
US (1) US6158318A (en)
EP (1) EP0932469B1 (en)
AT (1) ATE226863T1 (en)
AU (1) AU4303197A (en)
CA (1) CA2266548C (en)
DE (1) DE69716757T2 (en)
DK (1) DK0932469T3 (en)
EE (1) EE04102B1 (en)
ES (1) ES2188934T3 (en)
WO (1) WO1998013165A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109704A2 (en) * 2008-03-07 2009-09-11 Iomus Oy Machine tool, slat conveyor suitable for machine tools and method for machining an object with a machine tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6923101B2 (en) * 2002-05-10 2005-08-02 Mid-South Engineering Co., Inc Continuous log bucking saw system and method
DE102007022698A1 (en) 2007-05-11 2008-11-13 Reinhardt, Christof cutting device
DE102007029292B4 (en) 2007-06-19 2014-12-11 Behringer Gmbh Sawing device and method for sawing a workpiece
CN102528156B (en) * 2010-12-10 2014-07-09 沈阳理工大学 Rotary sawing machine with double saw blades

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE184784C1 (en) * 1963-01-01
DE2053723A1 (en) * 1969-12-03 1971-06-09 VEB Polygraph Leipzig, Kombinat fur polygraphische Maschinen und Ausrustun gen, χ 7050 Leipzig Cutting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468993A (en) * 1982-06-11 1984-09-04 International Paper Company Small log bucking system
US5063801A (en) * 1989-01-23 1991-11-12 Wallis Bernard J Cut-off machine and method for tubing
US5557997A (en) * 1994-04-06 1996-09-24 Paper Converting Machine Company Apparatus for transverse cutting
US5544557A (en) * 1995-01-13 1996-08-13 Paper Converting Machine Company Method and apparatus for cutting superposed webs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE184784C1 (en) * 1963-01-01
DE2053723A1 (en) * 1969-12-03 1971-06-09 VEB Polygraph Leipzig, Kombinat fur polygraphische Maschinen und Ausrustun gen, χ 7050 Leipzig Cutting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109704A2 (en) * 2008-03-07 2009-09-11 Iomus Oy Machine tool, slat conveyor suitable for machine tools and method for machining an object with a machine tool
WO2009109704A3 (en) * 2008-03-07 2009-10-29 Iomus Oy Machine tool, slat conveyor suitable for machine tools and method for machining an object with a machine tool

Also Published As

Publication number Publication date
AU4303197A (en) 1998-04-17
ATE226863T1 (en) 2002-11-15
EE9900123A (en) 1999-10-15
CA2266548C (en) 2005-04-26
EP0932469B1 (en) 2002-10-30
US6158318A (en) 2000-12-12
DE69716757D1 (en) 2002-12-05
CA2266548A1 (en) 1998-04-02
ES2188934T3 (en) 2003-07-01
EP0932469A1 (en) 1999-08-04
DK0932469T3 (en) 2003-03-03
DE69716757T2 (en) 2003-09-25
EE04102B1 (en) 2003-08-15

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