US20160325338A1 - Method for Creating Through-Passages in a Metal Body by Means of High-Speed Impact Cutting - Google Patents

Method for Creating Through-Passages in a Metal Body by Means of High-Speed Impact Cutting Download PDF

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Publication number
US20160325338A1
US20160325338A1 US15/111,627 US201515111627A US2016325338A1 US 20160325338 A1 US20160325338 A1 US 20160325338A1 US 201515111627 A US201515111627 A US 201515111627A US 2016325338 A1 US2016325338 A1 US 2016325338A1
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US
United States
Prior art keywords
punch
passage
slug
metal body
ejector
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.)
Abandoned
Application number
US15/111,627
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English (en)
Inventor
Wolfgang Rixen
Gerrit Pies
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Individual
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Individual
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 Individual filed Critical Individual
Publication of US20160325338A1 publication Critical patent/US20160325338A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • 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
    • B23D23/00—Machines or devices for shearing or cutting profiled stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • 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
    • B23D33/00—Accessories for shearing machines or shearing devices

Definitions

  • the invention concerns a method for creating through-passages in a metal body by means of high-speed impact cutting with closed cutting line, referred to in the following as HSIC.
  • the produced products may be contour bodies that are punched out of the metal body or through-passage shapes.
  • the metal body can be flat or uneven or can have a curved surface.
  • HSIC high-speed impact cutting
  • This publication discloses a method for producing profiled parts by separation from profiled rods.
  • the profiled rod is clamped in a tool between two active parts wherein the facing contact side of the active parts is designed in the form of dies in which the shape of the profile to be processed is cut out, respectively.
  • the sizes of the contact sides have the dimensions of the profiled part to be cut.
  • the separation is carried out adiabatically at a very high impact speed of the cutting punch wherein the force is transmitted by means of the punch onto one active part.
  • the gist of the present invention resides in modifying the previously known method for punching by means of HSIC such that the actual generation of the through-passage and the ejection of the slug are carried out separate from each other.
  • the ejector performs its stroke movement simultaneously with the punch and with the same drive. Accordingly, punch and ejector can operate simultaneously. However, it can also be provided that the at least one ejector carries out its stroke movement independent of the stroke movement of the punch. In this way, it becomes possible to employ remote from the machine a further machine that requires significantly reduced power.
  • the slug itself is the product to be produced or the through-passage itself that has been opened by the slug imparts the desired contour to the product to be produced.
  • the HSIC is carried out beginning at a curved surface.
  • FIG. 1 to FIG. 5 the prior art method for generating a through-passage in a metal body by means of high-speed impact cutting HSIC wherein
  • FIG. 1 shows the situation prior to impact of the punch
  • FIG. 2 shows the complete break formation of a slug at a minimal insertion depth
  • FIG. 3 shows further pushing out the slug by means of the punch at high circumferential pressure
  • FIG. 4 shows retraction of the punch at high friction
  • FIG. 5 shows an enlarged detail view according to FIG. 3 with schematic warping between punch and through-hole.
  • FIGS. 6 through 10 now show the improved method and FIGS. 11 and 12 show the prior art, wherein
  • FIG. 6 shows a view similar to FIG. 2 with already penetrated punch
  • FIG. 7 shows the position of the retracted punch shortly after the state according to FIG. 6 ;
  • FIG. 8 shows an ejector introduced into the through-passage and having a reduced dimension in comparison to the punch
  • FIG. 9 the now completed through-passage wherein however the ejector 14 has not yet been retracted
  • FIG. 10 a perspective illustration of the method for generating through-passages wherein here, as the workpiece to be produced, the so-called slug is designed as a gear;
  • FIG. 11 shows a cross-section of a through-hole produced by conventional punching
  • FIG. 12 a perspective illustration of a punch with abrasion.
  • a punch 11 is impacting at very high speed on a metal body 12 . This is illustrated in FIG. 1 in such a way that the end face of the punch 11 is shown shortly before penetrating the surface of the workpiece 12 .
  • the punch 11 has penetrated slightly into the metal body 12 and has already completely created a so-called slug 13 as a result of HSIC.
  • This slug 13 is already completely separated from the remaining metal body 12 . It is therefore to be noted that already for a minimal insertion depth in the direction of action of the punch 11 the break between the materials is existing all the way through the entire body 12 .
  • the slug 13 is removed from the body 12 .
  • HSIC causes also wear by adhesion, and as a result thereof by abrasion, in the area of the tool wall surface, see in particular FIG. 5 .
  • the somewhat corrugated lines between the punch 11 and the body 12 are meant to schematically indicate the break line which is occurring in HSIC by utilizing the adiabatic material state, wherein the break line extends under the active surface of the tool or the punch 11 in the impulse propagation direction and scatters, considered statistically, in the direction of the through-hole 10 and of the surrounding material of the body 12 .
  • FIGS. 6 and 7 that illustrate generation of the slug 13 and retraction of the punch 11 .
  • a first dimension D at the punch 11 corresponds very precisely to the inner width or diameter of the passage 10 .
  • FIG. 8 it can be seen that an ejector 14 with a second reduced dimension d has pushed the slug 13 , generated already upon short insertion of the punch 11 , all the way through the passage 10 and thus has ejected it.
  • FIG. 9 shows the end position with removed slug 13 and completely produced passage 10 .
  • FIG. 10 shows in an exemplary fashion the generation of the passage 10 according to the invention ( FIG. 4 ).
  • the slug in the form of a gear 13 produced by means of HSIC is utilized.
  • the punches with closed cutting line can be formed in a shape so that, instead of the slug 13 , the metal body 12 that has surrounded it before forms the workpiece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US15/111,627 2014-01-15 2015-01-13 Method for Creating Through-Passages in a Metal Body by Means of High-Speed Impact Cutting Abandoned US20160325338A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014000299.3A DE102014000299B3 (de) 2014-01-15 2014-01-15 Verfahren zur Erzeugung von Durchgängen in einem metallischen Körper mittels Hochgeschwindigkeitsscherschneiden sowie dessen Verwendung
DE102014000299.3 2014-01-15
PCT/EP2015/000038 WO2015106961A1 (fr) 2014-01-15 2015-01-13 Procédé de production de passages dans un corps métallique par cisaillement à grande vitesse

Publications (1)

Publication Number Publication Date
US20160325338A1 true US20160325338A1 (en) 2016-11-10

Family

ID=52462887

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/111,627 Abandoned US20160325338A1 (en) 2014-01-15 2015-01-13 Method for Creating Through-Passages in a Metal Body by Means of High-Speed Impact Cutting

Country Status (6)

Country Link
US (1) US20160325338A1 (fr)
EP (1) EP3094440B1 (fr)
CN (1) CN106132609B (fr)
DE (1) DE102014000299B3 (fr)
DK (1) DK3094440T3 (fr)
WO (1) WO2015106961A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019189299A1 (fr) * 2018-03-29 2019-10-03 日本電産株式会社 Procédé pour empêcher la formation de chutes
CN111496069A (zh) * 2020-05-06 2020-08-07 汪煜 一种联动式冲压模具
CN111531015A (zh) * 2020-04-29 2020-08-14 武义珍珍新能源科技有限公司 一种制造灯体用五金冲料件自动冲孔推料机构
US11027325B2 (en) 2016-12-22 2021-06-08 Benteler Automobiltechnik Gmbh Hot-formed metal sheet and method of producing an opening in such a metal sheet

Citations (22)

* Cited by examiner, † Cited by third party
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US3106120A (en) * 1960-04-15 1963-10-08 Allied Prod Corp Spring ejector for metal punch
US3381514A (en) * 1965-10-20 1968-05-07 Triangle Tool Co Method and apparatus for making toothed lock washers
US3392614A (en) * 1965-12-20 1968-07-16 Richard E. Feldborg Ejector punch
US3459081A (en) * 1966-07-13 1969-08-05 Wirth W Kanode Die punch and slug ejector
US3878746A (en) * 1972-12-22 1975-04-22 Ibm Burless blanking machine and process
US4586360A (en) * 1983-07-08 1986-05-06 Dako-Werkzeugfabriken David Kotthaus Gmbh & Co. Kg Method of and apparatus for the fine cutting (punching) of articles
US4797986A (en) * 1986-06-20 1989-01-17 Kabushiki Kaisha Yokoyama Seisakusho Spur gear manufacturing process
US4800745A (en) * 1986-07-01 1989-01-31 Kabushiki Kaisha Yokoyama Seisakusho Spur gear automatic production process
US4876876A (en) * 1987-10-27 1989-10-31 Mazda Motor Corporation Dies for forging gear-shaped part made of sheet metal
US5247862A (en) * 1989-09-20 1993-09-28 Feintool International Holding Process for producing burr-free workpieces by blanking, in particular in a counterblanking tool
US5320013A (en) * 1991-06-20 1994-06-14 Fuji Electric Co., Ltd. Method of blanking metal foil on piezoelectric actuator operated press, and die sets for practicing the method
US5794501A (en) * 1995-09-07 1998-08-18 Sony Corporation Method of punching template for forming a base plate of a tape cassette
US20080016934A1 (en) * 2004-07-06 2008-01-24 Willi Grimm Method And Arrangement For The Production Of Stampings
US7368075B2 (en) * 2000-09-15 2008-05-06 Morphic Technologies Aktiebolag (Publ) Impact machine and a method of forming a body
US7464575B2 (en) * 2004-10-13 2008-12-16 Nakamura Seisakusho Kabushikigaisha Shearing method for thin plate
US8215148B2 (en) * 2006-11-15 2012-07-10 Toyota Boshoku Kabushiki Kaisha Shear punching die assemblies
US8770075B2 (en) * 2010-10-20 2014-07-08 Feintool Industrial Property Ag Device for removing precision punching respectively fine blanking parts from a tool of a press
US8826540B2 (en) * 2010-02-10 2014-09-09 Feintool Intellectual Property Ag Method and device for influencing the cut and functional face on fine-blanked finished parts
US8910549B2 (en) * 2008-07-03 2014-12-16 Feintool Industrial Property Ag Method and device for producing precision blankings from a material strip
US8939003B2 (en) * 2007-09-26 2015-01-27 Feintool Intellectual Property Ag Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface
US9440281B2 (en) * 2009-10-02 2016-09-13 Toyota Boshoku Kabushiki Kaisha Device and method for manufacturing work
US9669449B2 (en) * 2013-02-05 2017-06-06 Wolfgang Rixen Method for producing a through hole in a metallic body

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SE354220B (fr) * 1972-03-10 1973-03-05 Atlas Copco Ab
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US6370773B1 (en) * 1998-08-05 2002-04-16 Stanley J. Ellis Apparatus for making self-gripping air turning vanes
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JP3777367B2 (ja) * 2003-06-23 2006-05-24 日高精機株式会社 熱交換器用フィンの製造方法及びその金型装置
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DE102012011767A1 (de) * 2012-05-10 2013-11-14 Technische Universität München Zerteilen eines Werkstücks

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106120A (en) * 1960-04-15 1963-10-08 Allied Prod Corp Spring ejector for metal punch
US3381514A (en) * 1965-10-20 1968-05-07 Triangle Tool Co Method and apparatus for making toothed lock washers
US3392614A (en) * 1965-12-20 1968-07-16 Richard E. Feldborg Ejector punch
US3459081A (en) * 1966-07-13 1969-08-05 Wirth W Kanode Die punch and slug ejector
US3878746A (en) * 1972-12-22 1975-04-22 Ibm Burless blanking machine and process
US4586360A (en) * 1983-07-08 1986-05-06 Dako-Werkzeugfabriken David Kotthaus Gmbh & Co. Kg Method of and apparatus for the fine cutting (punching) of articles
US4797986A (en) * 1986-06-20 1989-01-17 Kabushiki Kaisha Yokoyama Seisakusho Spur gear manufacturing process
US4800745A (en) * 1986-07-01 1989-01-31 Kabushiki Kaisha Yokoyama Seisakusho Spur gear automatic production process
US4876876A (en) * 1987-10-27 1989-10-31 Mazda Motor Corporation Dies for forging gear-shaped part made of sheet metal
US5247862A (en) * 1989-09-20 1993-09-28 Feintool International Holding Process for producing burr-free workpieces by blanking, in particular in a counterblanking tool
US5320013A (en) * 1991-06-20 1994-06-14 Fuji Electric Co., Ltd. Method of blanking metal foil on piezoelectric actuator operated press, and die sets for practicing the method
US5794501A (en) * 1995-09-07 1998-08-18 Sony Corporation Method of punching template for forming a base plate of a tape cassette
US7368075B2 (en) * 2000-09-15 2008-05-06 Morphic Technologies Aktiebolag (Publ) Impact machine and a method of forming a body
US20080016934A1 (en) * 2004-07-06 2008-01-24 Willi Grimm Method And Arrangement For The Production Of Stampings
US7464575B2 (en) * 2004-10-13 2008-12-16 Nakamura Seisakusho Kabushikigaisha Shearing method for thin plate
US8215148B2 (en) * 2006-11-15 2012-07-10 Toyota Boshoku Kabushiki Kaisha Shear punching die assemblies
US8939003B2 (en) * 2007-09-26 2015-01-27 Feintool Intellectual Property Ag Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface
US8910549B2 (en) * 2008-07-03 2014-12-16 Feintool Industrial Property Ag Method and device for producing precision blankings from a material strip
US9440281B2 (en) * 2009-10-02 2016-09-13 Toyota Boshoku Kabushiki Kaisha Device and method for manufacturing work
US8826540B2 (en) * 2010-02-10 2014-09-09 Feintool Intellectual Property Ag Method and device for influencing the cut and functional face on fine-blanked finished parts
US8770075B2 (en) * 2010-10-20 2014-07-08 Feintool Industrial Property Ag Device for removing precision punching respectively fine blanking parts from a tool of a press
US9669449B2 (en) * 2013-02-05 2017-06-06 Wolfgang Rixen Method for producing a through hole in a metallic body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11027325B2 (en) 2016-12-22 2021-06-08 Benteler Automobiltechnik Gmbh Hot-formed metal sheet and method of producing an opening in such a metal sheet
WO2019189299A1 (fr) * 2018-03-29 2019-10-03 日本電産株式会社 Procédé pour empêcher la formation de chutes
CN111936247A (zh) * 2018-03-29 2020-11-13 日本电产株式会社 废料部的废料上升防止方法
CN111531015A (zh) * 2020-04-29 2020-08-14 武义珍珍新能源科技有限公司 一种制造灯体用五金冲料件自动冲孔推料机构
CN111496069A (zh) * 2020-05-06 2020-08-07 汪煜 一种联动式冲压模具

Also Published As

Publication number Publication date
EP3094440B1 (fr) 2018-08-29
CN106132609B (zh) 2018-10-16
DE102014000299B3 (de) 2015-07-16
CN106132609A (zh) 2016-11-16
EP3094440A1 (fr) 2016-11-23
DK3094440T3 (en) 2018-10-29
WO2015106961A1 (fr) 2015-07-23

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