IT1250551B - METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE. - Google Patents

METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE.

Info

Publication number
IT1250551B
IT1250551B ITTO911012A ITTO911012A IT1250551B IT 1250551 B IT1250551 B IT 1250551B IT TO911012 A ITTO911012 A IT TO911012A IT TO911012 A ITTO911012 A IT TO911012A IT 1250551 B IT1250551 B IT 1250551B
Authority
IT
Italy
Prior art keywords
metal sheet
sheet metal
punch
fluid bed
bed type
Prior art date
Application number
ITTO911012A
Other languages
Italian (it)
Inventor
Re Mario Da
Original Assignee
Fiat Auto Spa
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 Fiat Auto Spa filed Critical Fiat Auto Spa
Priority to ITTO911012A priority Critical patent/IT1250551B/en
Publication of ITTO911012A0 publication Critical patent/ITTO911012A0/en
Priority to BR9204920A priority patent/BR9204920A/en
Priority to DE69205959T priority patent/DE69205959T2/en
Priority to EP92121405A priority patent/EP0549955B1/en
Priority to JP4339091A priority patent/JPH05245546A/en
Priority to PL92297058A priority patent/PL169841B1/en
Publication of ITTO911012A1 publication Critical patent/ITTO911012A1/en
Application granted granted Critical
Publication of IT1250551B publication Critical patent/IT1250551B/en

Links

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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/205—Hydro-mechanical deep-drawing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)

Abstract

Il procedimento comprende una prima fase con la quale un organo premilamiera (1) viene portato a contatto della lamiera (2), una seconda fase per alimentare attraverso un primo circuito idraulico un fluido in pressione nella cavità (4) di una matrice (3) ed al di sotto della lamiera ed una terza fase durante la quale un punzone (7) viene spostato verso la lamiera per deformarla plasticamente per l'azione combinata delle pressioni generate dal punzone e dal fluido. In base all'invenzione sulla superficie superiore (9) di almeno una porzione (10) della lamiera viene fatto agire un secondo fluido in pressione alimentato da un secondo circuito idraulico, al fine di equilibrare le pressioni agenti sulla superficie Inferiore (11) di detta porzione mentre il punzone viene spostato verso la lamiera.The process comprises a first phase with which a blank holder member (1) is brought into contact with the sheet metal (2), a second phase for feeding a fluid under pressure into the cavity (4) of a die (3) through a first hydraulic circuit and below the sheet and a third phase during which a punch (7) is moved towards the sheet to deform it plastically by the combined action of the pressures generated by the punch and the fluid. According to the invention, a second fluid under pressure fed by a second hydraulic circuit is made to act on the upper surface (9) of at least a portion (10) of the sheet metal, in order to balance the pressures acting on the Lower surface (11) of said portion while the punch is moved towards the sheet metal.

ITTO911012A 1991-12-20 1991-12-20 METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE. IT1250551B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ITTO911012A IT1250551B (en) 1991-12-20 1991-12-20 METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE.
BR9204920A BR9204920A (en) 1991-12-20 1992-12-02 Procedure for embedding a fluid bed type sheet metal.
DE69205959T DE69205959T2 (en) 1991-12-20 1992-12-16 Process for forming sheet metal under hydraulic pressure.
EP92121405A EP0549955B1 (en) 1991-12-20 1992-12-16 Method of the fluidised bed type for the shaping of sheet metal
JP4339091A JPH05245546A (en) 1991-12-20 1992-12-18 Method for shaping sheet metal by hydraulic forming method
PL92297058A PL169841B1 (en) 1991-12-20 1992-12-18 Method of and apparatus for forming metal sheet workpieces using a fluid substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO911012A IT1250551B (en) 1991-12-20 1991-12-20 METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE.

Publications (3)

Publication Number Publication Date
ITTO911012A0 ITTO911012A0 (en) 1991-12-20
ITTO911012A1 ITTO911012A1 (en) 1993-06-21
IT1250551B true IT1250551B (en) 1995-04-20

Family

ID=11409816

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO911012A IT1250551B (en) 1991-12-20 1991-12-20 METAL SHEET METAL SHEET PROCESS OF THE FLUID BED TYPE.

Country Status (6)

Country Link
EP (1) EP0549955B1 (en)
JP (1) JPH05245546A (en)
BR (1) BR9204920A (en)
DE (1) DE69205959T2 (en)
IT (1) IT1250551B (en)
PL (1) PL169841B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2103656B1 (en) * 1994-10-06 1998-05-01 Idem Construcciones Vascas S L INJECTED WATER EMBUTITION SYSTEM FOR THE CONFORMATION OF PARTS.
DE19827614B4 (en) * 1998-06-20 2005-08-25 Steinhart, Paul, Dipl.-Ing. Method and device for the production of deep drawn parts
KR20020076943A (en) * 2001-03-31 2002-10-11 현대자동차주식회사 Dual hydroforming system
US8534106B2 (en) * 2009-10-19 2013-09-17 Ford Global Technologies, Llc Hydromechanical drawing process and machine
PL235400B1 (en) * 2018-01-29 2020-07-13 Politechnika Warszawska Method for hydromechanical shaping of thin-walled sections and the die for hydromechanical shaping of thin-walled sections
CN112893595B (en) * 2021-01-14 2023-06-16 山东钢铁集团日照有限公司 Special die for low-pressure forming of bending axis pipe fitting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915327C (en) * 1951-09-23 1954-07-19 Heinrich Ewald Kranenberg Device for the production of hollow bodies from sheet metal under hydraulic pressure
DE951807C (en) * 1955-04-01 1956-11-08 Heinrich Ewald Kranenberg Device for the production of hollow bodies from sheet metal under hydraulic pressure
DE3372937D1 (en) * 1982-04-20 1987-09-17 Kazuhiko Nakamura Metal sheet forming process with hydraulic counterpressure

Also Published As

Publication number Publication date
PL169841B1 (en) 1996-09-30
DE69205959D1 (en) 1995-12-14
DE69205959T2 (en) 1996-07-11
EP0549955B1 (en) 1995-11-08
PL297058A1 (en) 1993-09-06
JPH05245546A (en) 1993-09-24
ITTO911012A0 (en) 1991-12-20
BR9204920A (en) 1994-06-28
ITTO911012A1 (en) 1993-06-21
EP0549955A1 (en) 1993-07-07

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981231