DE1752186A1 - Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials - Google Patents

Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials

Info

Publication number
DE1752186A1
DE1752186A1 DE19681752186 DE1752186A DE1752186A1 DE 1752186 A1 DE1752186 A1 DE 1752186A1 DE 19681752186 DE19681752186 DE 19681752186 DE 1752186 A DE1752186 A DE 1752186A DE 1752186 A1 DE1752186 A1 DE 1752186A1
Authority
DE
Germany
Prior art keywords
deep drawing
increasing
metals
particular aluminum
aluminum materials
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.)
Pending
Application number
DE19681752186
Other languages
German (de)
Inventor
Karlheinz Nippe
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DE19681752186 priority Critical patent/DE1752186A1/en
Publication of DE1752186A1 publication Critical patent/DE1752186A1/en
Pending legal-status Critical Current

Links

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
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/201Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • 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
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006Blanks having varying thickness, e.g. tailored blanks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

Verfahren zur Erhöhung des Tiefziehverhältnis@ess beim Tiefziehen von Metallen, insbesondere Aluziniuawerkstoffen Die Erfindung betrifft ein Verfahren zur Erhöhung-.des Tfefzieh- verhältnisses beim Tiefziehen von Metallen, insbesondere Alumi- niumwerkstoffen. Beim Tiefziehen von Metallen werden kreisförmige, it4hreckige oder elliptische Bleche zu Gefäßen verformt. Die Bleche werden von einem Niederhalter auf einen Ziehring gedrückt, und, ein Stempel zieht dann das Blech durch eine Öffnung im Ziehring. Die Höhe der entstehenden Gefäße richtet sich nach dem Verhältnis von Rondendurchmesser zu Stempeldurchmessee. Dieser Rondendurehmesser läßt sich nur auf eine bestimmte Größe steigern, da sonst das Blech reißt. Der größte ziehbare Rondendurchmesser verhält sich ..um Stempeldurchmesser bei den verschiedenen Materialien zwischen 1,7 : 1 und 2,2 : 1. Stelle beim Tiefziehen liegt im Übergang vom f-:fäßboden zur Wand. Durch die dort auftretende Biegung nimmt -:: ;j:Lckfw: der Bleche ab, und die Lastaufnahme wird geringer. die Ziehkräfte, die mit größer werdenden Ronden ziin,i-.rira(#n, die @@':-:@tigkeit der Bleche, so reißen sie in der NachLei L wird erfindungsgemäß im Rahmen des wie r@r1.äuter`,en Verfrihr(:n" dadurch vermieden, daß die der- )iic:gezone verstärkt ausgebildet "ü:f'un(len irriir-rle, 7_@ißt@ ",L(,-11 das Tiefziehverhältnis .Weiterhin. wurde festgestellt, daß das Tiefziehverhältnis ait zunehsexdem Dio&enuntereahied der Ronden ebenfalls-erhöht wer- den kann. Z 1(eiteren Erläuterung der ErfMudung d@enendie Zeichnungen, i xen zeigen: _ , die Äuo'dxtung einer, erfiMungoge»Ü ausgebildeten Ronde F1 . " die Gestalt des erileltea. .Xohlkörper ü F" d.tisigeru.:ds @'ieterältuieses mit zu x ehmendem Dio@eht@aterachied dein aoa, In den $iggi 1 und 2 bezeiabaen,-gleiche Bezugsteichen gleiche Teilt, Mit I ist der Stempel besiffert, während 2' den Falten- halten den Ziehring bedeu#eA, , Die Ronde ist iri Fis. 't mit 4 begoicbxlet und hat in der elpgtereii .Biegenone,@ die Verstärkungen .5: In. Bi4. - 2 ist> mit 6 der erhaltene Napf beg-iffert. in: gig.. 3 idt auf der 0,«p4inate dis Tefziebverältns und auf derbaeeoäer Bleehdekenuhtersched a L cc $_@ aufgetragen. Die Stampelabruadung betrug 't0 mein Radius, die 2 mm. Als Verketoff wurde in diesem Ya11e Al 9915 weich verwendet. Die Figur lüßt erkennen, daß das Tiefziehverhältnis mit abnehmen- dem Blechdickenunterschied steigt. Beim Tiefziehen wird die größte Ziehkraft je nach Werkstoff nach einer unterschiedlichen Ziehung erreicht. Bis zu dieser größten Ziehkraft wird der Boden des entstehenden Gefäßes geringer belastet. Wird die verstärkte Zone in der Ronde. nach außen erweitert, kann die Kraftdifferenz zum Abstrecken dieser dickeren Zone genutzt werden. Method for increasing the deep-drawing ratio @ ess at Deep drawing of metals, in particular aluminum materials The invention relates to a method for increasing the Tfefzieh- ratio when deep drawing metals, especially aluminum nium materials. When deep drawing metals, circular, rectangular or elliptical sheets formed into vessels. The sheets are from a hold-down device pressed onto a drawing ring, and, a stamp then pulls the sheet metal through an opening in the drawing ring. The height of the resulting vessels depends on the ratio of Round diameter to punch diameter. This round diameter knife can only be increased to a certain size, otherwise that Sheet metal tears. The largest drawable round diameter behaves ... about the punch diameter for the various materials between 1.7: 1 and 2.2: 1. Position during deep drawing is in the transition from f-: bottom of the vessel to the wall. Due to the bend that occurs there, it takes - ::; j: Lckfw: the sheet metal, and the load is less. the pulling forces that occur with larger blanks ziin, i-.rira (#n, die @@ ': -: @ activity of the sheets, so they tear in the NachLei L is according to the invention in the context of how r @ r1.äuter`, en Verfrihr (: n "avoided by the der-) iic: gezone reinforced "ü: f'un (len irriir-rle, 7_ @ eats @", L (, - 11 the deep drawing ratio . Farther. it was found that the deep drawing ratio ait increasing dio & subeahied the round blanks are also increased can. Z 1 (a further explanation of the invention includes the drawings, i xen show: _, the extension of a, erfiMungoge »Ü trained round F1 . " the shape of the erileltea. .Xohlkörper ü F " d.tisigeru.:ds @ 'ieterältuieses with to x named Dio @ eht @ aterachied your aoa, In $ iggi 1 and 2, the same reference marks are the same Divided, the stamp is inscribed with I, while 2 'the folds holding the pull ring means # eA,, The round is iri F sharp. 't with 4 begoicbxlet and has in the elpgtere ii .biegenone , @ the reinforcements .5: In. Bi4. - 2 is> with 6 the received bowl is beg-iffert. in: gig .. 3 idt on the 0 , «p 4inate dis Tefziebverältns and on the Baeeoäer Bleehdekenuhtersched a L cc $ _ @ applied. The stamping was' t0 my radius, the 2 mm. Al 9915 soft was used as the Verketoff in this Ya11e. The figure shows that the deep-drawing ratio decreases with the difference in sheet thickness increases. With deep drawing, the greatest drawing force is depending on the material reached after a different drawing . Until this one The bottom of the resulting vessel becomes the greatest pulling force less burdened. Becomes the reinforced zone in the round blank. after expanded on the outside, the difference in force can be used to straighten this thicker zone can be used.

Claims (2)

P a t e n t a. n a p r ü c h e ' (31 Verfahren zur Erhöhung des Tief ziehverhältnisses beim Tiefziehen von Metallen, insbesondere Aluminium-Werkstoffen, dadurch gekennzeichnet, daB die Ronden oder dergleichen in der Biegezone verstärkt ausgebildet werden. Patent a. naprü che '(31 method for increasing the deep-drawing ratio when deep-drawing metals, in particular aluminum materials, characterized in that the circular blanks or the like are reinforced in the bending zone. 2) Ronde oder dergleichen zur Ausführung des Verfahrene nach Anspruch 1, dadurch gekennzeichnet, deß sie in der Biegezone Verstärkungen (5) aufweist.2) Discs or the like for carrying out the procedure Claim 1, characterized in that it has reinforcements (5) in the bending zone.
DE19681752186 1968-04-17 1968-04-17 Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials Pending DE1752186A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681752186 DE1752186A1 (en) 1968-04-17 1968-04-17 Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752186 DE1752186A1 (en) 1968-04-17 1968-04-17 Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials

Publications (1)

Publication Number Publication Date
DE1752186A1 true DE1752186A1 (en) 1971-04-08

Family

ID=5692664

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681752186 Pending DE1752186A1 (en) 1968-04-17 1968-04-17 Process for increasing the deep drawing ratio when deep drawing metals, in particular aluminum materials

Country Status (1)

Country Link
DE (1) DE1752186A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121359B (en) * 1960-09-23 1962-01-04 Leitz Ernst Gmbh Electric remote control switch for changing projectors
EP0700735A3 (en) * 1994-08-29 1996-05-15 Toyota Motor Co Ltd Press working method including step of strengthening local portion of blank
EP0715908A3 (en) * 1994-11-21 1997-02-26 Toyota Motor Co Ltd Method of manufacturing a cup-shaped article
WO2002036286A1 (en) * 2000-11-04 2002-05-10 Vogel & Noot Verpackungstechnik Gmbh Black plate for producing deep-drawn parts for packaging purposes and method for producing said black plate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121359B (en) * 1960-09-23 1962-01-04 Leitz Ernst Gmbh Electric remote control switch for changing projectors
EP0700735A3 (en) * 1994-08-29 1996-05-15 Toyota Motor Co Ltd Press working method including step of strengthening local portion of blank
US5735163A (en) * 1994-08-29 1998-04-07 Toyota Jidosha Kabushiki Kaisha Press working method including step of strengthening local portion of blank
EP0715908A3 (en) * 1994-11-21 1997-02-26 Toyota Motor Co Ltd Method of manufacturing a cup-shaped article
US5722282A (en) * 1994-11-21 1998-03-03 Toyota Jidosha Kabushiki Kaisha Method of manufacturing a cup-shaped article
WO2002036286A1 (en) * 2000-11-04 2002-05-10 Vogel & Noot Verpackungstechnik Gmbh Black plate for producing deep-drawn parts for packaging purposes and method for producing said black plate

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