EP1740327B1 - Method for de-burring the cut edges of workpieces - Google Patents

Method for de-burring the cut edges of workpieces Download PDF

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Publication number
EP1740327B1
EP1740327B1 EP20050730440 EP05730440A EP1740327B1 EP 1740327 B1 EP1740327 B1 EP 1740327B1 EP 20050730440 EP20050730440 EP 20050730440 EP 05730440 A EP05730440 A EP 05730440A EP 1740327 B1 EP1740327 B1 EP 1740327B1
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EP
European Patent Office
Prior art keywords
rolling
workpiece
pressure
tool
cut
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.)
Active
Application number
EP20050730440
Other languages
German (de)
French (fr)
Other versions
EP1740327A1 (en
Inventor
Peter Bytow
Martin Decker
Martin Steiner
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.)
Trumpf Werkzeugmaschinen GmbH and Co KG
Original Assignee
Trumpf Werkzeugmaschinen GmbH and Co 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
Priority to DE200410020483 priority Critical patent/DE102004020483A1/en
Application filed by Trumpf Werkzeugmaschinen GmbH and Co KG filed Critical Trumpf Werkzeugmaschinen GmbH and Co KG
Priority to PCT/EP2005/003730 priority patent/WO2005102551A1/en
Publication of EP1740327A1 publication Critical patent/EP1740327A1/en
Application granted granted Critical
Publication of EP1740327B1 publication Critical patent/EP1740327B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/005Edge deburring or smoothing
    • 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
    • Y10T29/00Metal working
    • Y10T29/47Burnishing

Abstract

A tool for de-burring the cut edges (24) of workpieces (10), comprising a pressing body in the form of a roller body (26) enabling burrs to be impinged upon with pressure at a respective cut edge (24) as a result of a relative longitudinal movement of the roller body (26) and workpiece (10) wherein the roller body (26) is moved along the cut edge (24) in the direction of the workpiece (10). A machine for de-burring the cut edges (24) of workpieces (10) is provided with a tool of the above-mentioned variety. During the course of the method for de-burring the cut edges (24) of workpieces (10), a roller body (26) is rolled along the respective cut edge (24). The burr in the cut edge (24) is thus impinged upon with pressure by means of the roller body (26) in the direction of the workpiece (10).

Description

  • The invention relates to a method for deburring cutting edges on workpieces, by means of a rolling body,
    • wherein the rolling body and a workpiece are moved along at least one to be deburred cutting edge of the workpiece relative to each other,
    • wherein in the relative longitudinal movement of the rolling body and workpiece a burr on the cutting edge by a along the Cutting edge rolling pressure surface of the rolling body is pressurized in the direction of the workpiece and
    • wherein the workpiece pressurized by the rolling body is supported by a counter-pressure roller on the side of the workpiece opposite to the side of the rolling body.
  • Generic prior art is disclosed by US 3,478,558 A , In the case of the prior art, two balls are arranged on opposite sides of a metal strip, for deburring cutting edges on the workpiece concerned. Incidentally, the prior art mentions the possibility of using rollers instead of the individually disclosed deburring balls.
  • Further prior art is known from JP 09103828 A , In this case, a press is used to deburr the cut edges of punched holes on plate-shaped workpieces. For this purpose, the prior art press on a tool with two tool parts, one of which is designed as a punch and the other as a die. The stamp is associated with that side of the workpiece to be machined, on which a ridge protrudes along the cutting edge of a previously created punched out. In this case, the stamp cross section has an oversize relative to the cross section of the punched-out. The die of the prior art tool is arranged on the opposite side of the workpiece. For deburring the relevant cutting edge on the punch punch and die are moved in a stroke direction against each other. In this case, on the one side of the workpiece, the edge region of the punched-through pressurized the stamp of the prior art tool. On the opposite side of the workpiece acted upon by the punch is supported by the die. Under the effect of the pressurization by the punch, the previously formed burr at the cut edge of the punch is removed. If the length of the cut edge to be deburred exceeds the corresponding extension of the punch, then the punch and die of the previously known arrangement must execute a plurality of strokes, between which the work piece is to be replenished in each case in the direction of the cut edge to be deburred. The increment of the Nachsetzbewegung must not exceed the extent of the stamp in question.
  • To optimize the deburring of cut edges on workpieces, the present invention has set itself the object of the generic state of the art.
  • According to the invention this object is achieved by the method according to claim 1. The claimed rolling and rolling along the respective cutting edge rolling body allows a continuous removal of the burr formed on the cutting edge. In the interest of optimum functionality, for example, even with small workpiece thicknesses, the workpiece pressurized by the rolling body is supported on that side of the workpiece, which is opposite to the side of the rolling body, by a counterpressure roller. According to the invention, the support is provided by a counter-pressure roller, which is provided on its jacket with a circumferential groove whose cross-sectional shape is adapted to the geometry of the pressure surface of the rolling body. In particular, continuous deburring is also possible possible at a relatively large cutting edge length and deviating from a straight course Schnittkantenverläufen. In the latter case, only the relative longitudinal movement of rolling body and workpiece is to be controlled accordingly. The concept according to the invention is applicable regardless of the method by which the cutting edge to be deburred has been produced. For example, according to the invention, punching burrs can be removed just as efficiently as burrs on thermally cut workpiece edges. In any case, the deburring can be done at high speed and still quiet. Under the effect of the pressurization by the rolling body according to the invention, the burr can be embossed in the area of the respective cutting edge and thereby removed. However, it is also conceivable by the pressurization by means of the rolling body conditional separating the ridge of the thus provided workpiece.
  • Particular embodiments of the method according to the invention according to claim 1 emerge from the dependent claims 2 to 6.
  • According to claims 2 and 3, the axis of rotation of said rolling body types is chosen appropriately. If the axis of rotation of the rolling body extends transversely to the relevant workpiece, then the rolling body can follow any, not even straight courses of the cutting edge to be machined, particularly in the case of lateral contact with the workpiece cutting surface forming the respective cutting edge. By a corresponding flexibility with regard to the cutting edge profile, a pressure ball rotatably mounted on all sides is distinguished, as described in claim 3. Is the rotation axis the rolling body aligned parallel workpiece, so there is advantageously a relatively small height of the provided with the rolling tool part. An optimal Kurvengängigkeit such rolling elements is ensured in the case of the method according to claim 4. The claimed rotational mobility of the rolling body about an alignment axis of rotation enables the rolling body to follow even cutting edges that are not straight. To execute rotational movements of the rolling body about the alignment axis of rotation, a controlled drive can be provided. But is also possible a free rotational mobility of the rolling body to the alignment axis of rotation and a concomitant automatic alignment of the rolling body.
  • In the case of the method according to claim 5 of the invention, two cut edges are suitably deburred in a single operation with a rolling body.
  • According to claim 6, at least one cutting edge is also deformed in addition to the deburring, in particular chamfered. As a result of rolling Schnittkantenbeaufschlagung results in a lash-free cut edge deformation.
  • According to the invention, the respective cutting edge can be acted upon by a pressure surface, which runs along the workpiece edges forming the cutting edge. As a result of this design of the rolling body side pressure surface optimum removal of the burr formed on the cutting edge is ensured. In particular, the burr can be effectively embossed at the cutting edge. In order to an alignment axis of rotation free storage of the rolling body For example, the part of the rolling body-side pressure surface opposite to the workpiece cutting surface forming the relevant cutting edge can also serve to control the orientation of the rolling body about the orientation axis of rotation. Finally, on the geometry of the rolling body printing surface, if appropriate, the shape of the chamfer side chamfer can be defined.
  • A machine for carrying out the method according to the invention for deburring cutting edges on workpieces can also be used for punching workpiece machining. The creation of cutting edges and their deburring can accordingly take place on one and the same machine. The replacement of other types of tools and an associated extension of the machine functions is conceivable.
  • The invention will be explained in more detail below with reference to exemplary schematic illustrations. Show it:
  • Fig. 1
    a machine for punching sheet metal as well as for deburring the cut edges created during punching processing,
    Fig. 2
    to explain the basic mode of operation of a tool according to the invention for deburring cutting edges,
    FIGS. 3, 4
    on the machine after Fig. 1 usable tools according to the invention for deburring cutting edges and
    Fig. 5
    a cutting edge before and after deburring.
  • evidenced Fig. 1 a machine 1 has a C-shaped machine frame 2 with a partially cut upper frame leg 3 and with a lower frame leg 4. At the upper frame leg 3 is provided with an upper tool holder 5 plunger 6 in the direction of an illustrated by a double arrow axis 7 movable , The lower frame leg 4 is provided with a workpiece table 8, in which a lower tool holder 9 is integrated. The upper tool holder 5 and the lower tool holder 9 are by means of a corresponding rotary drive about the axis 7 rotationally adjustable (double arrow 32). The rotary drive of the upper tool holder 5 and the lower tool holder 9 is numerically controlled as well as the other functional means of the machine 1.
  • The workpiece table 8 stores in a known manner a workpiece in the form of a sheet 10. This ist.mittels a workpiece feed, here a conventional coordinate guide 11, in a horizontal plane on the workpiece table 8 movable. For this purpose, the coordinate guide 11 has a traversable in the direction of a double arrow 12 transverse guide 13 and on the transverse guide 13 in the direction of a double arrow 14 movable transverse rail 15. The cross rail 15 of the coordinate guide 11 also serves as a tool magazine. As such, the cross rail 15 is provided with tool holders 16, 17, 18.
  • The tool holder 16, 17 take in the example shown punching tools 19, 20 of conventional design. The tool holder 18 is provided for a tool 21 which, in the illustrated phase of the machining of the sheet 10, is interchanged with a tool upper part 22 in the upper tool holder 5 and with a tool lower part 23 in the lower tool holder 9.
  • The tool 21 is used for deburring of cutting edges 24 on the underside of the sheet 10. The cutting edges 24 have previously been created by punching machining of the sheet 10 by means of the punching tools 19, 20. Instead of the tool 21 while the punching tools 19, 20 were successively used with their punches in the upper tool holder 5 and with their punching dies in the lower tool holder 9 of the machine 1. Overall, four slots were punched on the sheet metal 10 with itself on the underside of the sheet rectangularly adjoining cutting edges 24. It came at all cutting edges 24 to form burr.
  • In the operating state according to Fig. 1 the plunger 6 is raised on the upper frame leg 3 of the machine frame 2 with the upper tool holder 5 and the tool upper part 22 of the tool 21 fixed therein. At the lower tool part 23 of the tool 21 workpiece supports 25 are aligned on its upper side with the free axial end of a pin-like roller body 26 designed as a pressure roller. The sheet metal 10 is located in the Fig. 1 apparent position.
  • Based on these conditions, the sheet 10 is initially positioned by means of the coordinate guide 11 relative to the tool 21 such that one of the cut edges 24 of the slot 10 disposed on the sheet 10 above the rolling body 26 of the tool 21 comes to rest. Subsequently, will the plunger 6 is lowered with the upper tool 22 of the tool 21. In this case, the upper tool part 22 runs with its underside, in detail with in Fig. 2 shown, all-round rotatable and serving as an abutment counter-pressure balls 27 on the top of resting on the workpiece supports 25 of the tool lower part 23 sheet 10. With continued lowering movement of the plunger 6, the sheet 10 is pressed under elastic deformation of the workpiece supports 25 down. The initially arranged above the roller 26 cutting edge 24 on the plate 10 comes as a result of a conical pressure surface 28 of the roller 26 to the plant and is pressurized by the roller body 26 via the pressure surface 28. The pressure surface 28 extends at both, the cutting edge 24 forming surfaces of the sheet 10 along. Accordingly, it lies opposite both the underside of the sheet 10 and the adjoining this cutting surface of the sheet 10. Overall, the conditions after Fig. 2 ,
  • Now, the sheet 21 pressurized by the tool 21 is moved by means of the coordinate guide 11 relative to the tool 21 such that the rolling body 26 with the pressure surface 28 completely abuts the cut edges 24 of the relevant slot on the sheet 10. The rolling body 26 rotates about a vertical feed axis of rotation 29 and rolls with its pressure surface 28 on the cutting edges 24 from. On a base body 30 of the tool lower part 23 of the pin-like rolling body 26 via a rotary bearing 31 rotatably supported. By means of the pin-like rolling body 26 can be deburred in particular also cut edges with narrow radii. A rotational adjustment of the rolling body 26 by a corresponding adjustment movement of the tool 21 in the direction of the double arrow 32 is not required for changes in direction of the machined cutting edge.
  • Under the action of the pressurization by the rolling body 26, the burr protruding from the cut edges 24 is removed by embossing. At the same time, the cut edges 24 are slightly angled by means of the rolling body 26. The shape of the chamfer formed is due to the geometry of the pressure surface 28 on the roller body 26. The shape of the chamfer could also be influenced by varying the orientation of the feed rotation axis 29 of the rolling body 26.
  • If the rolling body 26 has traversed all the cutting edges 24 of a slot, the plunger 6 is lifted until the sheet 10 is released. The workpiece supports 25 are relieved of pressure and are in their initial state in which they are aligned on their upper side with the free axial end of the rolling body 26. The rolling body 26 is again completely below the sheet 10. This can therefore be positioned with the cut edges 24 of the next slot in the above manner with respect to the tool 21. After renewed lowering of the upper tool 22, the now of the Rolled body 26 acted upon cutting edges 24 deburred and chamfered.
  • If the cut edges 24 machined on all slots of the sheet 10, the plunger 6 with the upper tool part 22 in the off Fig. 1 raised position.
  • By means of the coordinate guide 11, the processed sheet 10 is now moved away from the tool 21 and transferred to an unloading position. Starting from this unloading position, the sheet 10 is finally removed from the machine 1.
  • Fig. 3 shows a tool 41, which includes a tool top 42 and a tool base 43 and which can be used instead of the tool 21. Notwithstanding the tool 21, in the case of the tool 41 on the tool lower part 43, a roller body 46 designed as a pressure roller is rotatably mounted about a horizontal feed rotation axis 49. A pressure surface 48 is formed by a bead-like radial extension of the rolling body 46. The geometry of the pressure surface 48 is matched to the distance between opposite cut edges 24 of the sheet 10 and selected such that both cut edges 24 can be pressurized simultaneously. In this case, the pressure surface 48 surrounds both cut edges 24. Notwithstanding the ratios shown could be by means of the roller 46 at about the corresponding edge edge distance also processed only a single cutting edge and are encompassed by the pressure surface 48.
  • On the tool upper part 42 of the tool 41, a counterpressure roller 47 is rotatably mounted about a parallel to the feed axis of rotation 49 of the rolling body 46 extending axis as an abutment. On its jacket, the counter-pressure roller 47 is provided with a circumferential groove 52 whose cross-sectional shape is adapted to the cross-sectional shape of the pressure surface 48 forming bead on the roller body 46. In its mode of operation, the tool 41 basically coincides with the tool 21. In particular, it is also possible to machine cutting edges which are not rectilinear with the tool 41. For this purpose, the tool 41 in the direction of the double arrow 32 about the alignment axis of rotation forming an axis 7 of the relative lifting movement of the upper die 42 and lower die 43 can be adjusted in rotation. If necessary, the rotation is adjusted by means of the numerically controlled rotary drive provided for the upper tool holder 5 and the lower tool holder 9 of the machine 1. Alternatively, a free rotational mobility of the tool 41 about the axis is conceivable.
  • Also almost arbitrarily running cutting edges can be deburred with a tool 61, as in Fig. 4 is shown. The tool 61 has a tool upper part 62 and a lower tool part 63. At the latter is a rolling body 66 rotatably mounted in the form of a pressure ball by means of a rotary bearing 71. The pivot bearing 71 allows all-round rotational mobility of the rolling body 66th
  • The radius of the rolling body 66 is matched to the distance of the cutting edges 24 on the sheet 10. As a result, by means of a pressure surface 68 of the rolling body 66, two opposing cutting edges 24 can be simultaneously deburred and chamfered. As an abutment for the sheet 10 is a counter-pressure roller 67 which is rotatably mounted on the upper tool part 62 of the tool 61 about a horizontal axis of rotation. A circumferential groove 72 on the counter-pressure roller 67 is adapted with respect to its cross-sectional shape to the geometry of the pressure surface 68 on the roller body 66. Like the tool 21, the tool 61 is basically rotatable about the axis 7 in the direction of the double arrow 32. Due to the all-round rotational mobility of the roller 66 is made of the possibility of rotational adjustment of the tool 61 in non-linear Schnittkantenverläufen at best for the upper tool part 62 use.
  • The tools 21, 41, 61 can all be loaded into the upper tool holder 5 or into the lower tool holder 9 of the machine 1. At the cross rail 15 of the coordinate guide 11 can be held different tool types simultaneously. It is possible to use the tools 21, 41, 61 except for the above-described deburring and deformation of cut edges for workpiece forming, for example, to create beads on the sheet 10. Conversely, it is conceivable to use as a tool for deburring previously customary forming tools that of corresponding rolling elements, in particular of forming rollers and / or balls use.
  • Fig. 5 In the upper partial view, the formation of a ridge at the cutting edge 24 of the sheet 10 is indicated. A stamping punch and a punching die, as used in the case of the punching tools 19, 20, can be seen.
  • In the lower partial view shows Fig. 5 the conditions at the cutting edge 24 of the sheet 10 after deburring and a slight chamfering.

Claims (6)

  1. Process for deburring cut edges (24) on workpieces (10) by means of a rolling body (46, 66),
    • wherein the rolling body (46, 66) and a workpiece (10) are moved longitudinally relative to each other along at least one cut edge (24) to be deburred on the workpiece (10)
    • wherein, during the relative longitudinal movement of the rolling body (46, 66) and the workpiece (10), pressure is applied to a burr on the cut edge (24) in the direction towards the workpiece (10) via a pressure surface (48, 68) of the rolling body (46, 66) as the pressure surface (48, 68) rolls along the cut edge (24), and
    • wherein the workpiece (10) to which pressure is being applied by the rolling body (46, 66) is supported by a counter-pressure roller (47, 67) on that side of the workpiece (10) which is opposite to the side of the rolling body (46, 66),
    characterized in that the workpiece (10) is supported by a counter-pressure roller (47, 67) which is provided at its circumferential surface with an encircling groove (52, 72) having a cross-sectional shape that corresponds to the geometrie of the pressure surface (48, 68) of the rolling body (46, 66).
  2. Process according to claim 1, characterized in that the workpiece (10) and a rolling body (46), being in the form of a pressure roller supported so as to be rotatable about a feed-rotation axis (49), are moved longitudinally relative to each other, wherein the feed rotation axis (49) is extending transversely to the direction of the relative longitudinal movement of the rolling body (46) and the workpiece (10).
  3. Process according to claim 1, characterized in that the workpiece (10) and a rolling body (66), being in the form of a pressure ball preferably supported so as to be universally rotatable, are moved longitudinally relative to each other.
  4. Process according to claim 2, characterized in that the feed-rotation axis (49) of the rolling body (46) extends transversely to the direction of the relative longitudinal movement of the rolling body (46) and the workpiece (10) and transversely to a cut face of the workpiece (10) forming a cut edge (24), and in that the rolling body (46) is rotated during the relative longitudinal movement of the rolling body (46) and the workpiece (10) about an orientation-rotation axis (7) extending transversely to the direction of the relative longitudinal movement of the rolling body (46) and the workpiece (10) and transversely to the feed-rotation axis (49) of the rolling body (46).
  5. Process according to any one of the preceding claims, characterized in that the rolling body (46, 66) and the workpiece (10) are moved longitudinally relative to each other along two mutually opposing spaced cut edges (24) of the worpiece (10) that are to be deburred and in that during the relative longitudinal movement of the rolling body (46) and the workpiece (10) pressure is applied to the burr on both cut edges (24) in the direction towards the workpiece (10) via the pressure surface (48, 68) of the rolling body (46, 66) as the pressure surface (48, 68) rolls along both cut edges (24).
  6. Process according to any one of the preceding claims, characterized in that by means of the rolling body (46, 66) pressure is applied to the burr on at least one cut edge (24) in the direction towards the workpiece (10) and at least one cut edge (24) is shaped, in particular chamfered.
EP20050730440 2004-04-26 2005-04-08 Method for de-burring the cut edges of workpieces Active EP1740327B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410020483 DE102004020483A1 (en) 2004-04-26 2004-04-26 Tool, machine and method for deburring cutting edges on workpieces
PCT/EP2005/003730 WO2005102551A1 (en) 2004-04-26 2005-04-08 Tool, machine and method for de-burring the cut edges of workpieces

Publications (2)

Publication Number Publication Date
EP1740327A1 EP1740327A1 (en) 2007-01-10
EP1740327B1 true EP1740327B1 (en) 2012-06-13

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Family Applications (1)

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EP20050730440 Active EP1740327B1 (en) 2004-04-26 2005-04-08 Method for de-burring the cut edges of workpieces

Country Status (5)

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US (2) US8042369B2 (en)
EP (1) EP1740327B1 (en)
JP (1) JP4659026B2 (en)
DE (1) DE102004020483A1 (en)
WO (1) WO2005102551A1 (en)

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WO2017000989A1 (en) * 2015-06-30 2017-01-05 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tool for a stamping machine and method for processing an end face of a flat workpiece

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DE102006049044B4 (en) * 2006-10-18 2018-01-11 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tool for cutting plate-like workpieces
EP1970667B1 (en) * 2007-03-16 2013-06-12 TRUMPF Werkzeugmaschinen GmbH + Co. KG Sheet metal working machine with a device for inspecting a perforation in a workpiece as results of an operation on the workpiece
EP2177291B1 (en) * 2008-10-20 2015-04-15 TRUMPF Werkzeugmaschinen GmbH + Co. KG Method for cutting and/or forming of workpieces
JP5427491B2 (en) * 2009-07-02 2014-02-26 株式会社アマダ Deburring method and apparatus
EP2486602B1 (en) * 2009-10-08 2013-01-16 Komax Holding AG Device and method for removing coatings from solar modules
DE102012009235A1 (en) * 2012-05-09 2013-11-14 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg seat rail
EP2722194B1 (en) * 2012-10-22 2016-12-14 TRUMPF Werkzeugmaschinen GmbH + Co. KG Tool for machining workpieces, in particular sheet metal
EP2987566B1 (en) 2014-08-20 2019-12-04 Feintool International Holding AG Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr
JP6272410B1 (en) * 2016-08-03 2018-01-31 株式会社アマダホールディングス Die mold for stamping
WO2018055186A1 (en) 2016-09-26 2018-03-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tool, machine tool, and method for machining planar workpieces
DE102016120035B3 (en) * 2016-10-20 2018-01-18 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tool and machine tool and method for processing plate-shaped workpieces
DE102018211351A1 (en) * 2018-07-10 2020-01-16 Pass Stanztechnik Ag Roller tool for a machine tool

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Also Published As

Publication number Publication date
US20120006211A1 (en) 2012-01-12
EP1740327A1 (en) 2007-01-10
US8042369B2 (en) 2011-10-25
WO2005102551A1 (en) 2005-11-03
JP2007534498A (en) 2007-11-29
US20070105488A1 (en) 2007-05-10
US8490449B2 (en) 2013-07-23
JP4659026B2 (en) 2011-03-30
DE102004020483A1 (en) 2005-11-17

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