US3683722A - Press tools and dies - Google Patents

Press tools and dies Download PDF

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Publication number
US3683722A
US3683722A US77940A US3683722DA US3683722A US 3683722 A US3683722 A US 3683722A US 77940 A US77940 A US 77940A US 3683722D A US3683722D A US 3683722DA US 3683722 A US3683722 A US 3683722A
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US
United States
Prior art keywords
male
female
integers
shape
dimensions
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.)
Expired - Lifetime
Application number
US77940A
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English (en)
Inventor
Edward Alexander Pears
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
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Publication of US3683722A publication Critical patent/US3683722A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/20—Making tools by operations not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/565—Consisting of shell-like structures supported by backing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/757—Moulds, cores, dies

Definitions

  • This invention relates to press dies and tools and to a novel method of manufacturing such dies and tools.
  • dies are manufactured by the conventional method in which a wood, epoxy or plaster pattern is first produced. By means of a die sinking machine, the pattern so produced is transformed into a die manufactured from a suitable metal alloy.
  • the various processes in the production of the die demand the use of highly skilled tool and/or pattern makers and this in turn contributes to the high cost of these dies. In most cases, the dies are not an economic proposition unless a large production run is contemplated.
  • a method of producing dies, tools and the like adapted for use in conjunction with a press includes the steps of providing a backing element the profile of one of the faces of which corresponds generally in shape to the male or female integers of the desired die, and forming on the face a skin of polymeric material of which the profile of the exposed surface corresponds exactly in shape and dimensions to the shape and dimensions of the said male or female integers.
  • the thickness of the skin may be in the order of to 50 thousandths of an inch.
  • the polymer may be one selected from the group of polymers known to have high impact or compressive strength. Thus polymers displaying a compressive strength in the order of 9 tons per square inch may be used. Certain epoxy resins display this strength and are therefore suitable for this purpose.
  • the backing elements may be formed from a suitable metal alloy such as the alloy sold under the trade name Meehanite.” This alloy has a compressive strength in the order of 100 tons per square inch and may easily be formed into the shape required for the backing elements.
  • the backing elements may be formed in a casting process.
  • the skin may be formed on the backing elements in a number of ways.
  • the skin is formed by carrying out the following steps:
  • the skin of polymeric material is secured to the backing elements by means of a polymeric adhesive which is applied to the elements after they have been cleaned, degreased and provided with keying apertures over their operative faces.
  • the invention also includes within its scope a die tool or the like adapted for use in conjunction with a press of which at least one of the die members includes a backing element the profile of one of the faces of which corresponds generally in shape and size to that of the male or female integers of the desired die, and a skin of polymeric material formed on this face, the profile of the exposed surface of the skin corresponding exactly in shape and dimensions to that of the male or female integers of the desired die.
  • FIG. 1 illustrates two die members produced by the method according to the invention
  • FIGS. 2 to 5 illustrate various steps of the method according to the invention.
  • Male die member 1 and female die member 2 each include a backing element 3 and 4 respectively cast from the alloy known as Meehanite."
  • the profile of face 5 of element 3 corresponds generally in shape to that of the male integers 7 of member 1 while the profile of face 6 of element 4 corresponds generally in shape to that of female integers 8 of member 2.
  • Each element 3 and 4 is provided with a number of holes 9 disposed over its faces 5 and 6 respectively the reason for the presence of which will be explained below.
  • Each of the faces 5 and 6 of elements 3 and 4 is also provided with an epoxy resin skin 10 and I] respectively, the profile of the exposed surface of which corresponds exactly in shape and dimensions to integers 7 and 8 respectively.
  • Skins l0 and ll are formed as follows: Female backing element 4 defining cavity 12 is cleaned, degreased and heated to a temperature of about 45 C. A thin layer of the epoxy adhesive Araldite AV l23b together with Hardener HY 956 or Gussolite Grundtechnik is applied to face 6 and allowed to cure under cooling for 24 hours.
  • Element 4 is again heated to substantially the same temperature as before and a suitable quantity of the epoxy resin Araldite SW 417 or Gussolite-Metal Type 30 in fluid form together with Araldite Hardener SW 417 as curing agent, is poured into cavity 12 to form a layer of between 20 to 50 thousandths of an inch thick thereon.
  • Some of the epoxy material will be forced into holes 9 of element 4 in this way keying the body of epoxy material to the element.
  • the resin is then allowed to cure under cooling for 12 to 24 hours, whereafter stamp 13 is withdrawn from cavity 12.
  • the cured layer of epoxy material comprising skin 11 of between 20 and 50 thousandths of an inch thick will hence adhere to element 4.
  • the profile of the exposed surface of skin 11 corresponds exactly in shape and dimensions to that of female integers 8.
  • a suitable quantity of a moldable release agent such as a wax is then introduced onto skin 11 and a second stamp 14 of which the profile of its operative face 140 is complementary in shape to male integers 7 on member 1 and of the same dimensions is lowered on to the wax which is hence forced into a layer 15 of the same thickness as that of the article to be formed between members I and 2.
  • stamp 14 will leave an imprint on wax layer 15 which corresponds in shape and dimensions to that of male integers 7.
  • the resin is allowed to cure under cooling for l2 to 24 hours whereafter element 3 is withdrawn from cavity 12.
  • the epoxy material will hence adhere to element 3 as a thin skin the profile of the exposed surface of which will correspond exactly in shape and size to male integers 7.
  • Wax layer is then removed from element 4 and die members I and 2 cleaned and prepared for use.
  • a method of producing dies, tools or the like comprising a male member and female member adapted for use in conjunction with a press, including the steps of providing a male and female backing element; forming the operative faces of the elements to correspond generally in shape and dimensions respectively to that of the male and female integers of the desired members and providing the operative faces each with a skin of polymeric material the profiles of which respectively correspond exactly in shape and dimensions to that of the male and female integers of the desired die members by:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
US77940A 1969-10-09 1970-10-05 Press tools and dies Expired - Lifetime US3683722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA696204 1969-10-09

Publications (1)

Publication Number Publication Date
US3683722A true US3683722A (en) 1972-08-15

Family

ID=25561439

Family Applications (1)

Application Number Title Priority Date Filing Date
US77940A Expired - Lifetime US3683722A (en) 1969-10-09 1970-10-05 Press tools and dies

Country Status (10)

Country Link
US (1) US3683722A (cs)
JP (1) JPS499038B1 (cs)
AT (1) AT307882B (cs)
BE (1) BE757340A (cs)
DE (1) DE2049331A1 (cs)
FR (1) FR2064224B1 (cs)
GB (1) GB1296428A (cs)
NL (1) NL7014677A (cs)
NO (1) NO130783C (cs)
SE (1) SE365447B (cs)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003792A1 (en) * 1982-04-30 1983-11-10 Lindskog K J E A mould part and a method in its manufacture and use
US6586327B2 (en) * 2000-09-27 2003-07-01 Nup2 Incorporated Fabrication of semiconductor devices
EP1473133A1 (en) * 2003-04-29 2004-11-03 Intercos S.p.A. Machine for the manufacture of flexible moulds, in particular for the obtainment of lipsticks or the like
US20040238146A1 (en) * 2003-05-05 2004-12-02 Huazhong University Of Science & Technology Method of manufacturing dies and molds by melting-spray
US20060156787A1 (en) * 2005-01-18 2006-07-20 Mark Manuel Laminated tool and a method for forming a tool
US20080011417A1 (en) * 2006-07-11 2008-01-17 Mark Manuel Compound tooling for controlled work surface characteristics
US20080307849A1 (en) * 2004-11-26 2008-12-18 Agency For Science, Technology And Research Method And Apparatus For Forming Microstructures
US20130287954A1 (en) * 2012-04-26 2013-10-31 Airbus Operations, S.L. Method for prevention of porosity in composite material parts
US20150041529A1 (en) * 2012-03-19 2015-02-12 Stora Enso Oyj Deep-drawn paper tray, a method and an apparatus for making it, and a tray-formed product package
CN106180392A (zh) * 2014-08-08 2016-12-07 通用汽车环球科技运作有限责任公司 混合冲压系统
IT201800003144A1 (it) * 2018-02-28 2019-08-28 Selle Royal Spa Componente maschio e rispettiva unita' di stampaggio per la produzione di un elemento di supporto per il corpo umano, quale una sella di un veicolo.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137105A (en) * 1977-06-20 1979-01-30 Gulf & Western Industries, Inc. Method of forming tooling for superplastic metal sheet
FR2480152A1 (fr) * 1980-04-10 1981-10-16 Hartmann Patrice Outil d'emboutissage et son procede de fabrication
DE3111052C2 (de) * 1981-03-20 1985-03-07 Ciba-Geigy GmbH, 7867 Wehr Distanzfolie für den Formen- und Modellbau sowie ihre Verwendung
JPS6331708A (ja) * 1986-07-26 1988-02-10 東陶機器株式会社 陶磁器加圧鋳込成形用型の製法
US4976400A (en) * 1989-06-16 1990-12-11 General Motors Corporation Plastic tooling with compression adjustment
GB9014244D0 (en) * 1990-06-27 1990-08-15 Frank Smith And Son Shopfitter Improvements relating to moulding
EP1074368A1 (en) * 1999-08-02 2001-02-07 Juan Retolaza Ibargüengoitia Construction of moulds for moulding integral polyurethane foams and finished moulded products obtained

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463035A (en) * 1966-12-05 1969-08-26 Wilfred Bright Method of preparing die plates
US3548050A (en) * 1967-04-28 1970-12-15 Delta Pattern & Model Co Method of making resin faced metal molding dies

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041989A (en) * 1959-06-04 1962-07-03 Lawrence S Tanner Die with plastic liner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463035A (en) * 1966-12-05 1969-08-26 Wilfred Bright Method of preparing die plates
US3548050A (en) * 1967-04-28 1970-12-15 Delta Pattern & Model Co Method of making resin faced metal molding dies

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536364A (en) * 1982-04-30 1985-08-20 Lindskog Kjell J Manufacture of two part mold
WO1983003792A1 (en) * 1982-04-30 1983-11-10 Lindskog K J E A mould part and a method in its manufacture and use
US7507663B2 (en) 2000-09-27 2009-03-24 Contour Semiconductor, Inc. Fabrication of semiconductor devices
US6586327B2 (en) * 2000-09-27 2003-07-01 Nup2 Incorporated Fabrication of semiconductor devices
US20070117388A1 (en) * 2000-09-27 2007-05-24 Contour Semiconductor, Inc. Fabrication of semiconductor devices
EP1473133A1 (en) * 2003-04-29 2004-11-03 Intercos S.p.A. Machine for the manufacture of flexible moulds, in particular for the obtainment of lipsticks or the like
US20040238146A1 (en) * 2003-05-05 2004-12-02 Huazhong University Of Science & Technology Method of manufacturing dies and molds by melting-spray
US20080307849A1 (en) * 2004-11-26 2008-12-18 Agency For Science, Technology And Research Method And Apparatus For Forming Microstructures
US20060156787A1 (en) * 2005-01-18 2006-07-20 Mark Manuel Laminated tool and a method for forming a tool
WO2006078391A1 (en) * 2005-01-18 2006-07-27 Floodcooling Technologies, L.L.C. A laminated tool and a method for forming a tool
US20080011417A1 (en) * 2006-07-11 2008-01-17 Mark Manuel Compound tooling for controlled work surface characteristics
US20150041529A1 (en) * 2012-03-19 2015-02-12 Stora Enso Oyj Deep-drawn paper tray, a method and an apparatus for making it, and a tray-formed product package
US10118360B2 (en) * 2012-03-19 2018-11-06 Stora Enso Oyj Deep-drawn paper tray, a method and an apparatus for making it, and a tray-formed product package
US11383473B2 (en) 2012-03-19 2022-07-12 Stora Enso Oyj Deep-drawn paper tray, a method and an apparatus for making it, and a tray-formed product package
US20130287954A1 (en) * 2012-04-26 2013-10-31 Airbus Operations, S.L. Method for prevention of porosity in composite material parts
US9108359B2 (en) * 2012-04-26 2015-08-18 Airbus Operations, S.L. Method for prevention of porosity in composite material parts
CN106180392A (zh) * 2014-08-08 2016-12-07 通用汽车环球科技运作有限责任公司 混合冲压系统
IT201800003144A1 (it) * 2018-02-28 2019-08-28 Selle Royal Spa Componente maschio e rispettiva unita' di stampaggio per la produzione di un elemento di supporto per il corpo umano, quale una sella di un veicolo.

Also Published As

Publication number Publication date
AT307882B (de) 1973-06-12
DE2049331A1 (de) 1971-09-02
FR2064224B1 (cs) 1974-09-20
JPS499038B1 (cs) 1974-03-01
BE757340A (fr) 1971-03-16
NL7014677A (cs) 1971-04-14
SE365447B (cs) 1974-03-25
GB1296428A (cs) 1972-11-15
NO130783B (cs) 1974-11-04
FR2064224A1 (cs) 1971-07-16
NO130783C (cs) 1975-02-12

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