WO2017222485A2 - Procédé d'amélioration de matériau - Google Patents

Procédé d'amélioration de matériau Download PDF

Info

Publication number
WO2017222485A2
WO2017222485A2 PCT/TR2017/050273 TR2017050273W WO2017222485A2 WO 2017222485 A2 WO2017222485 A2 WO 2017222485A2 TR 2017050273 W TR2017050273 W TR 2017050273W WO 2017222485 A2 WO2017222485 A2 WO 2017222485A2
Authority
WO
WIPO (PCT)
Prior art keywords
film
sheet
forming
female part
laying
Prior art date
Application number
PCT/TR2017/050273
Other languages
English (en)
Other versions
WO2017222485A3 (fr
Inventor
Ayhan SENOL
Ismail MUTLU
Cem YAPAREL
Faruk Altan YILDIRIM
Umut YERLESEN
Burcu GIRGINER
Original Assignee
Tofas Turk Otomobil Fabrikasi Anonim Sirketi
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 Tofas Turk Otomobil Fabrikasi Anonim Sirketi filed Critical Tofas Turk Otomobil Fabrikasi Anonim Sirketi
Publication of WO2017222485A2 publication Critical patent/WO2017222485A2/fr
Publication of WO2017222485A3 publication Critical patent/WO2017222485A3/fr

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
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • 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
    • B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment

Definitions

  • the present invention relates to a material improvement method which is developed against wrinkling, thinning and rupture of the material that is being formed in material forming systems.
  • plastic forming The forming performed by applying force so as to provide a permanent change of form in materials is called plastic forming or plastic deformation. Materials can be shaped into a desired form making use of this property thereof.
  • the materials having the largest share in manufacturing sector are metals and alloys.
  • Metallic materials which include metals and alloys such as steel, cast iron, aluminum, copper, zinc, titanium and nickel, generally have good thermal conductivity and good electrical conductivity.
  • alloys made of metal mixtures In addition to use of pure metals for these materials, which have features of easy formability and impact resistance, they are also found in the sector as alloys made of metal mixtures in order to attain a development in a specific property and to achieve better features.
  • the last form, size, dimension tolerances of the material to be formed, the number and properties of the pieces intended to be produced are important factors in selection of the forming methods. Plastic forming methods are preferred in cases where the number of the pieces intended to be produced is a lot, and production with other methods is impossible with respect to the shape and size.
  • Cold forming is the plastic deformations under crystal temperature. Suitability of a metal for forming is very important in the industry. Cold forming is performed under the re-crystallization temperature of the metal. In many cases, limits of cold processes are small because the rupture feature of the metal gradually increases and then at some point it starts to break. A metal in such situation should be heated and cooled again in order to be subjected to cold forming again. During cold forming, grains constituting the metal elongate and they are deformed. In cases of severe deformation, it is very difficult to select the grains under a microscope. The outer surface of a cold formed piece is smooth and shiny due to friction. However if this surface is produced freely during cold forming, it becomes coarse and unsmooth due to the fact that each crystal making up the inner structure of the metal is deformed in a different manner.
  • Chipless metal forming is performed by methods such as free and die forging-molding, extrusion, roll forming, plastic pipe manufacturing, wire drawing and plate work.
  • the most widely used machines in chipless metal forming are as follows: presses, guillotine shears, bending presses and hooks (brace spots).
  • Sheets of raw materials are formed by being pressed between male and female parts via cold or heating pressing method. Wrinkles, thinning and ruptures occur on the material during forming the material between the male and female parts.
  • thermoplastic film is applied on the material and by means of the thermoplastic film used in cutting of the material, the corners are ensured to be clean-cut.
  • US4239717 an application in the state of the art, discloses a thermoplastic resin material which is used for filling in the cavities occurring on the layer in the compression mold.
  • the objective of the present invention is to provide a material improvement method which, during the process of forming the material between the male and female pieces, prevents wrinkling, thinning and rupture of the material.
  • Another objective of the present invention is to provide a material improvement method which, during the process of forming the material, enables the material surface to be patterned.
  • Figure 1 is a side sectional view of a mold.
  • FIG. 1 is a schematic view of the material improvement method.
  • the components shown in the figures are given reference numbers as follows:
  • Film A mold (1) which is developed against wrinkling, thinning and rupture of the material that is being formed in material forming systems, basically comprises at least one male part (2) which is used for forming the material,
  • Steps of the material improvement method (100) of the present invention are as follows:
  • Molding (1) process is performed in the material improvement method (100) of the present invention.
  • a sheet (4) is placed between the female part (3) and the male part (2) and the sheet (4) is formed between the male part (2) and the female part (3).
  • a film (5) is laid on one surface of the sheet (4).
  • the sheet (4) desired to be formed is heated until softening temperature of its raw material.
  • a film (5) produced from thermoplastic material is laid on the female part (3).
  • the heated sheet (4) is laid on the said film (5).
  • the thermoplastic film (5) which reaches softening temperature due to the heated sheet (4), is compressed between the male part (2) and the female part (3) and formed under pressure.
  • the cavity occurring when the mold (1), which is comprised of a female part (3) and a male part (2), is completely closed is smaller than the sum of thicknesses of the sheet (4) and the film (5).
  • the selected thermoplastic film (5) fills in the cavities in the sheet (4) occurring during the molding process. This way, the thinning regions of the sheet (4) are not seen/noticed.
  • the material improvement method (100) prevents wrinkling, thinning and rupture of the material during the process of forming the material between the male and female parts.
  • a pattern is engraved on the mold (1) surface of the female part (3) or male part (2).
  • the material improvement method (100) of the present invention firstly the sheet (4) is heated until the softening temperature of the film (5). Then the film (5) is placed on the sheet (4). The sheet (4) and the film (5), which are arranged one on top of the other, are placed between the female part (3) and the male part (2). The surface of the film (5) becomes patterned when the female part (3) or the male part (2) having a patterned surface is pressed with pressure.
  • the material improvement method (100) enables to provide a pattern on the material surface during forming the material by engraving a pattern on the mold (1) surfaces.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Procédé d'amélioration de matériau (100) dans des systèmes de formation de matériau ; un moule (1) est utilisé, lequel est développé contre le plissement, l'amincissement et la rupture du matériau qui est formé et qui comprend une partie mâle (2), une partie femelle (3) et la pose d'un film (5) sur la feuille (4) ; et qui est caractérisé par les étapes de chauffage de la feuille (4) (101), de pose du film (5) sur la partie femelle (3) (102), de pose de la feuille chauffée (4) sur le film (5) (103), de compression du film (5) et de la feuille (4) entre la partie mâle (2) et la partie femelle (4) et de leur mise en forme sous pression (104).
PCT/TR2017/050273 2016-06-20 2017-06-19 Procédé d'amélioration de matériau WO2017222485A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2016/08390 2016-06-20
TR201608390 2016-06-20

Publications (2)

Publication Number Publication Date
WO2017222485A2 true WO2017222485A2 (fr) 2017-12-28
WO2017222485A3 WO2017222485A3 (fr) 2018-04-12

Family

ID=60582644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2017/050273 WO2017222485A2 (fr) 2016-06-20 2017-06-19 Procédé d'amélioration de matériau

Country Status (1)

Country Link
WO (1) WO2017222485A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239717A (en) 1979-05-02 1980-12-16 Paul Wintner Compression molding procedure for liquid polyester resins
JP2000167625A (ja) 1998-12-02 2000-06-20 Tsutsumi Yotaro ブランクの打抜き方法とパンチ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06328155A (ja) * 1993-05-24 1994-11-29 Nippon Steel Corp マグネシウム薄板のプレス成形方法
DE102011116885B4 (de) * 2011-10-25 2018-12-06 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Warmumformen und insbesondere zum Presshärten eines mit einer metallischen Korrosionsschutzbeschichtung beschichteten Stahlblechmaterials unter Verwendung eines Schmiermittels
DE102014215365A1 (de) * 2014-08-05 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung von warmumgeformten Bauteilen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239717A (en) 1979-05-02 1980-12-16 Paul Wintner Compression molding procedure for liquid polyester resins
JP2000167625A (ja) 1998-12-02 2000-06-20 Tsutsumi Yotaro ブランクの打抜き方法とパンチ

Also Published As

Publication number Publication date
WO2017222485A3 (fr) 2018-04-12

Similar Documents

Publication Publication Date Title
KR101868706B1 (ko) 프레스 성형 방법 및 프레스 성형 부품의 제조 방법
JP5954380B2 (ja) プレス成形方法およびプレス成形部品の製造方法
RU2016109801A (ru) Отформованное прессованием изделие, способ изготовления отформованного прессованием изделия и устройство для изготовления отформованного прессованием изделия
JP2005530617A (ja) 缶蓋シェルを作る方法および装置
US20080209976A1 (en) Forming Tool
JP5266676B2 (ja) 温間成形加工方法と該温間成形加工方法により製造される成形加工品
JP2010075935A (ja) ダイクエンチ加工製品とその製造方法及び製造装置
JP2018164919A5 (fr)
TW201323109A (zh) 鎂合金製品的製造方法
WO2017222485A2 (fr) Procédé d'amélioration de matériau
JP4920455B2 (ja) 異形断面長尺薄板コイル及びこれを使用した成形体
JP2009072801A (ja) ホットプレス部品の部分増厚方法及び部分増厚装置
JP2008000795A (ja) マグネシウム系合金のプレス成形方法
CN113046662B (zh) 改善大尺寸镁合金薄板中条带状局域性能的装置及方法
JP2020093276A (ja) プレス成形方法
JP2003103311A (ja) マグネシウム合金薄板のプレス成形方法
EP2987568B1 (fr) Dispositif de formage à la presse à chaud pour acier revêtu et procédé de formage à la presse à chaud l'utilisant
JP5602370B2 (ja) 免震構造体用単位積層ゴムの製造方法
JP2018024016A (ja) 熱間プレス成形品の製造方法
JP2015116580A5 (ja) 成形材製造方法
TWI530385B (zh) Fracturing Extrusion Device, Extrusion Extrusion Machine and Extrusion Method
JP2010274293A (ja) ゴルフクラブヘッドの鍛造方法及びそのための金型
JP5715768B2 (ja) 熱間プレス装置及び熱間プレス製品
JP2009226441A (ja) 金型及びこの金型を用いた成形方法
JP2007038255A (ja) プレス成形品の製造方法および製造装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17809401

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17809401

Country of ref document: EP

Kind code of ref document: A2