SE464115B - Method of producing a die - Google Patents

Method of producing a die

Info

Publication number
SE464115B
SE464115B SE8901359A SE8901359A SE464115B SE 464115 B SE464115 B SE 464115B SE 8901359 A SE8901359 A SE 8901359A SE 8901359 A SE8901359 A SE 8901359A SE 464115 B SE464115 B SE 464115B
Authority
SE
Sweden
Prior art keywords
model
disc
shaped material
shell
layers
Prior art date
Application number
SE8901359A
Other languages
Swedish (sv)
Other versions
SE8901359L (en
SE8901359D0 (en
Inventor
S O Syrjaelae
Original Assignee
Electrolux Ab
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 Electrolux Ab filed Critical Electrolux Ab
Priority to SE8901359A priority Critical patent/SE464115B/en
Publication of SE8901359D0 publication Critical patent/SE8901359D0/en
Priority to US07/613,582 priority patent/US5061439A/en
Priority to DE69005767T priority patent/DE69005767T2/en
Priority to DK90906406.5T priority patent/DK0420962T3/en
Priority to ES90906406T priority patent/ES2049474T3/en
Priority to JP2506377A priority patent/JP2679871B2/en
Priority to PCT/SE1990/000198 priority patent/WO1990011855A1/en
Priority to EP90906406A priority patent/EP0420962B1/en
Publication of SE8901359L publication Critical patent/SE8901359L/en
Priority to FI906026A priority patent/FI91725C/en
Publication of SE464115B publication Critical patent/SE464115B/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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/003—Apparatus, e.g. furnaces

Abstract

The present invention relates to a method for producing a die. A disc-shaped material 11 is placed on a model 10, the shape of which corresponds to the cavity surface of the die. The one side of the disc-shaped material is subjected to an even hydraulic pressure across its surface in the direction of the model so that the disc- shaped material is deformed and attaches to the model. The pressure is relieved and the shell formed by the disc is used as part of the cavity surface which comprises the die. <IMAGE>

Description

464 115 detaljens godstjocklek. Eventuellt förefintligt kantmaterial borttaget successivt i trimningsoperationer och när tillräcklig skikttjocklek erhållits pålägges ytterligare ett skivformat material 16 som pressas ovanpå de tidigare pålagda skikten. Det skal, som skivan 16 då bildar utrustas med något lämpligt stöd på sin baksida eller ingjutes exempelvis i epoxi 17 för att bilda en formhalva med temperaturreglerande håligheter 18, varefter modellen 13 borttages och ytterligare en skiva 19 lägges på den färdiga formhalvan. Denna skiva 18 pressas sedan på sätt som tidigare an- givits och bildar på så sätt ytterligare ett andra skal, som därefter kan borttagas och inbakas i epoxi för att bilda den andra formhalvan. Efter det att skikten 14 och 15 avlägsnats bildar de båda formhalvorna i sammansatt tillstånd det önskade formrummet mellan sig. *i 464 115 part material thickness. Any existing edge material is removed successively in trimming operations and when sufficient layer thickness has been obtained, an additional sheet-shaped material 16 is applied which is pressed on top of the previously applied layers. The shell, which the disc 16 then forms, is equipped with some suitable support on its back or molded, for example, in epoxy 17 to form a mold half with temperature regulating cavities 18, after which the model 13 is removed and another disc 19 is placed on the finished mold half. This disc 18 is then pressed in the manner previously indicated and thus forms an additional second shell, which can then be removed and baked into epoxy to form the second mold half. After the layers 14 and 15 have been removed, the two mold halves in the assembled state form the desired mold space between them. *in

Claims (4)

3 Patentkrav3 Patent claims 1. Sätt att framställa ett formverktyg, k ä n n e t e c k n a t d ä r a v, att ett skivformat material (ll) placeras på en modell (lO) vars form motsvarar verk- tygets formrumsyta, att den ena sidan av det skivformade materialet utsättes för ett jämnt hydrauliskt tryck över sin yta i riktning mot modellen så att det skiv- formade materialet deformeras och ansluter sig till modellen att trycket avlastas och att det av skivan bildade skalet användes såsom del i den formrumsyta som verktyget innefattar varvid antingen modellen bibehålles som stöd för skalets baksida eller skalets baksida utrustas med en eller flera förstärkningar.1. A method of making a forming tool, characterized in that a disc-shaped material (II) is placed on a model (10) whose shape corresponds to the mold space surface of the tool, that one side of the disc-shaped material is subjected to an even hydraulic pressure. over its surface in the direction of the model so that the disc-shaped material deforms and adheres to the model so that the pressure is relieved and the shell formed by the disc is used as part of the mold cavity surface which the tool comprises, either the model is maintained to support the back back is equipped with one or more reinforcements. 2. Sätt enligt patentkravet 1, k ä n n e t e c k n a t d ä r a v, att det skivfor- made materialet utgöres av en metall eller metallegering.2. A method according to claim 1, characterized in that the sheet-shaped material consists of a metal or metal alloy. 3. Sätt enligt patentkravet l eller 2, k ä n n e t e c k n a t d ä r a v, att model- len framställes av ett lättbearbetbart material exempelvis trä, epoxi, aluminium eller en metallegering med låg smältpunkt.3. A method according to claim 1 or 2, characterized in that the model is made of an easily machinable material, for example wood, epoxy, aluminum or a metal alloy with a low melting point. 4. Sätt enligt något av föregående patentkrav, k ä n n e t e c k n a t d ä r a v, att formrummet bildas genom att ett eller flera skikt av skivformat material place- ras på modellen eller på det först bildade skalet varvid skikten i en eller flera press- ningsoperationer och eventuella trimningsoperationer bringas att ansluta sig till modellen, till skalet eller till varandra samt att ett yttre skal bildas på motsvarande sätt varefter sagda skikt avlägsnas för att bilda formrummet.4. A method according to any one of the preceding claims, characterized in that the mold space is formed by placing one or more layers of sheet-shaped material on the model or on the first formed shell, the layers in one or more pressing operations and any trimming operations be made to adhere to the model, to the shell or to each other and that an outer shell is formed in a corresponding manner, after which said layers are removed to form the mold space.
SE8901359A 1989-04-07 1989-04-14 Method of producing a die SE464115B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE8901359A SE464115B (en) 1989-04-14 1989-04-14 Method of producing a die
EP90906406A EP0420962B1 (en) 1989-04-07 1990-03-28 Manufacture of dimensionally precise pieces by sintering
ES90906406T ES2049474T3 (en) 1989-04-07 1990-03-28 MANUFACTURE BY SINTERING DIMENSIONALLY PRECISE PARTS.
DE69005767T DE69005767T2 (en) 1989-04-07 1990-03-28 PRODUCTION OF DIMENSIONAL PRECISION PIECES BY SINTERING.
DK90906406.5T DK0420962T3 (en) 1989-04-07 1990-03-28 Process for making dimensionally accurate pieces
US07/613,582 US5061439A (en) 1989-04-07 1990-03-28 Manufacture of dimensionally precise pieces by sintering
JP2506377A JP2679871B2 (en) 1989-04-07 1990-03-28 Method for producing accurately sized articles by sintering
PCT/SE1990/000198 WO1990011855A1 (en) 1989-04-07 1990-03-28 Manufacture of dimensionally precise pieces by sintering
FI906026A FI91725C (en) 1989-04-07 1990-12-05 Production of objects with good dimensional accuracy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8901359A SE464115B (en) 1989-04-14 1989-04-14 Method of producing a die

Publications (3)

Publication Number Publication Date
SE8901359D0 SE8901359D0 (en) 1989-04-14
SE8901359L SE8901359L (en) 1990-10-15
SE464115B true SE464115B (en) 1991-03-11

Family

ID=20375678

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8901359A SE464115B (en) 1989-04-07 1989-04-14 Method of producing a die

Country Status (1)

Country Link
SE (1) SE464115B (en)

Also Published As

Publication number Publication date
SE8901359L (en) 1990-10-15
SE8901359D0 (en) 1989-04-14

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