YU237090A - PROCEDURE FOR MAKING A SHEET METAL PLATE IN A SHAPE WHICH CANNOT BE DEVELOPED AND A PIECE OF SHAPE OBTAINED BY THIS PROCEDURE - Google Patents

PROCEDURE FOR MAKING A SHEET METAL PLATE IN A SHAPE WHICH CANNOT BE DEVELOPED AND A PIECE OF SHAPE OBTAINED BY THIS PROCEDURE

Info

Publication number
YU237090A
YU237090A YU237090A YU237090A YU237090A YU 237090 A YU237090 A YU 237090A YU 237090 A YU237090 A YU 237090A YU 237090 A YU237090 A YU 237090A YU 237090 A YU237090 A YU 237090A
Authority
YU
Yugoslavia
Prior art keywords
sheet metal
shape
procedure
developed
piece
Prior art date
Application number
YU237090A
Other languages
Serbo-Croatian (sh)
Inventor
Gabriel Ferdinand De Smet
Original Assignee
Sollac
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 Sollac filed Critical Sollac
Publication of YU237090A publication Critical patent/YU237090A/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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/02—Stabbing or piercing, e.g. for making sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

POSTUPAK ZA IZRADU IZ LIMENE PLOČE KOMADA U OBLIKU KOJI SE NE MOŽE RAZVITI I KOMAD OBLIKA DOBIJENOG OVIM POSTUPKOM, predmet ovog pronalaska je postupak za izradu iz limene ploče komada oblika koji se ne može razviti polazeći od limene ploče (10), naročito za izradu oborenih ivica, po kome se za svaku elementarnu površinu limene ploče (10) izračunava višak materijala koji se stvara deformacijom i skupljanjem materijala lima, definiše se najmanje jedna mreža perforacija (60, 70) tako da se izvuče iz svake elementarne zapremine odgovarajuća količina materijala prema varijaciji elementarne zapremine usled promene prvobitnog oblika limene ploče (10) da bi se dobio komad oblika koji se ne može razviti, bira se broj, raspored, dimenzija i oblik perforacija (60, 70), izradi se na limenoj ploči (10) pomenuta mreža perforacija (60, 70) i pod presom se deformiše limena ploča (10) da bi se dobio komad finalnog oblika koji se ne može razviti.TECHNICAL FIELD OF THE INVENTION The subject of the present invention is a process for making sheet metal pieces of a shape that cannot be developed starting from a sheet metal (10), in particular for making downtrodden. edge, along which for each elemental surface of the sheet metal (10) the excess material created by deformation and shrinkage of the sheet material is calculated, at least one network of perforations (60, 70) is defined so as to extract from each elemental volume the appropriate amount of material according to variation elemental volume due to the change of the original shape of the sheet metal plate (10) in order to obtain a piece of shape that cannot be developed, the number, arrangement, dimension and shape of perforations (60, 70) are chosen, the mentioned network of perforations is made on the sheet metal plate (10) (60, 70) and the sheet metal (10) is deformed under the press to obtain a piece of final shape that cannot be developed.

YU237090A 1989-12-18 1990-12-17 PROCEDURE FOR MAKING A SHEET METAL PLATE IN A SHAPE WHICH CANNOT BE DEVELOPED AND A PIECE OF SHAPE OBTAINED BY THIS PROCEDURE YU237090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8916724A FR2655890A1 (en) 1989-12-18 1989-12-18 PROCESS FOR THE PREPARATION OF A NON-DEVELOPABLE SHAPE PART FROM A SHEET OF SHEET AND SHAPED PART OBTAINED BY THIS PROCESS.

Publications (1)

Publication Number Publication Date
YU237090A true YU237090A (en) 1994-11-15

Family

ID=9388632

Family Applications (1)

Application Number Title Priority Date Filing Date
YU237090A YU237090A (en) 1989-12-18 1990-12-17 PROCEDURE FOR MAKING A SHEET METAL PLATE IN A SHAPE WHICH CANNOT BE DEVELOPED AND A PIECE OF SHAPE OBTAINED BY THIS PROCEDURE

Country Status (10)

Country Link
EP (1) EP0434499A1 (en)
JP (1) JPH03268823A (en)
KR (1) KR910011410A (en)
CN (1) CN1053761A (en)
CA (1) CA2032444A1 (en)
FI (1) FI906210A (en)
FR (1) FR2655890A1 (en)
HU (1) HU205727B (en)
PL (1) PL288312A1 (en)
YU (1) YU237090A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303300B4 (en) * 1993-02-05 2007-02-01 Diedrichs, Helmut W. Forming process for pressing sheet metal parts
ES2121105T3 (en) * 1994-03-19 1998-11-16 Helmut W Diedrichs DEFORMATION PROCEDURE FOR STAMPING BY PRESSING OF PLATE PIECES.
CN100377804C (en) * 2004-09-13 2008-04-02 上海宝钢工业公司 Composite process for bending and punching external protecting ring of steel reel and moulds thereof
GB2510445B (en) * 2013-08-16 2017-05-24 Rolls Royce Plc A method of reducing wrinkles in pressed sheet metal components
CN104438523B (en) * 2014-12-15 2016-03-30 安徽江淮汽车股份有限公司 Stamping parts method for flanging
CN106984687B (en) * 2017-04-07 2018-07-31 艾柯豪博（苏州）电子有限公司 Web plate material stretches the indeformable technique of mesh

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4262059A (en) * 1978-05-22 1981-04-14 Frankowski Leo A Method for making a thin-walled object
DD246000A3 (en) * 1984-11-14 1987-05-27 Neuruppin Feuerloeschgeraete METHOD FOR PRODUCING ROTATION SYMMETRICAL HOLLOW MOLDED MATERIALS FROM WOVEN MATERIAL
JPS61189828A (en) * 1985-02-16 1986-08-23 Toyota Motor Corp Hemming method

Also Published As

Publication number Publication date
HU205727B (en) 1992-06-29
FR2655890A1 (en) 1991-06-21
HU908238D0 (en) 1991-06-28
CA2032444A1 (en) 1991-06-19
CN1053761A (en) 1991-08-14
PL288312A1 (en) 1991-12-02
KR910011410A (en) 1991-08-07
JPH03268823A (en) 1991-11-29
FI906210A0 (en) 1990-12-17
EP0434499A1 (en) 1991-06-26
HUT57090A (en) 1991-11-28
FI906210A (en) 1991-06-19

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