US3228263A - Method of making cutting dies - Google Patents

Method of making cutting dies Download PDF

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Publication number
US3228263A
US3228263A US366555A US36655564A US3228263A US 3228263 A US3228263 A US 3228263A US 366555 A US366555 A US 366555A US 36655564 A US36655564 A US 36655564A US 3228263 A US3228263 A US 3228263A
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punch
tool steel
centerpiece
block
female die
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US366555A
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Howard L Bien
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PRODUCTION TECHNOLOGIES Inc
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PRODUCTION TECHNOLOGIES Inc
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Priority to US366555A priority Critical patent/US3228263A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/20Making tools by operations not covered by a single other subclass
    • B21D37/205Making cutting tools

Description

Jan. 11, 1966 H. BIEN 3,228,263

METHOD OF MAKING CUTTING DIES Filed May 11, 1964 I6. I. FIG. 2.

INVENTOR HOWARD L- BIEN l4" FIG. l2.

ATTORNEY.

United States Patent 3,228,263 METHOD OF MAKING CUTTING DIES Howard L. Bien, Forest Hills, N.Y., 'assignor to Production Technologies, lino, Plainview, N.Y., a corporation of New York Filed May 11, 1964, Ser. No. 366,555 6 Claims. (Cl. 76-107) The present invention relates to a method of making cutting dies to be use in working on sheet material and is preferably designed, though not necessarily, for the production of a limited number of pun-chings of an irregular outline.

A method of making a device for punching sheet metal has been proposed before which comprises the steps of cutting an opening in a die block having the contour of the desired punching and then bending blade means in strip form to make cutting edges and fitting them around the inside of the opening of the die block. A smaller block of the same contour is pressed thereafter into the space enclosed by the blades, a punch plate is fastened to a base plate and the cutting edges of the blades are pressed into the punch plate to mark off the desired contour thereon. The marked punch plate is then removed from the base plate and trimmed to the marked outline of the contour and finally the trimmed punch plate is fastened to the base plate. This method brought insufficient results only, because it provided for the thickness of the sheet metal by trial and error only.

Another method of making cutting dies has been disclosed in applicants own prior Patent No. 2,791,134, dated May 7, 1957, which comprises the steps of cutting out of a block a center piece having an inner and outer contour, respectively, of the article to be punched out of sheet material, whereupon blade means are fitted around the center piece and the latter is reassembled in the block with the blade means projecting from the block and clamped therebetween. A layer of spacing material of a thickness complementary to the thickness of the sheet material to be worked is then applied on the inside of the projecting portion of the blade means. Material, as for instance plastic material, is then poured in its liquid state into the space defined by the top face of the center piece and the layers of spacing material to form a punch member of a contour complementary to the center piece, the difference in size between the punch member and the center piece being determined by the thickness of the sheet material to be punched. Finally, the punch member and the clamped blade means are mounted on oppositely disposed supporting members to operate as male and female die members, respectivley.

It is one object of the present invention to provide a method of making cut-ting dies, which constitute a further development of the method disclosed in said Patent No. 2,791,134 and which permits an appreciably greater number of punchings and is subjected to less wear during the operation of the cutting die.

It is another object of the present invention to provide a method of making cutting dies which comprises the steps of cutting out of a block a center piece having an inner and outer contour, respectively, of the article to be punched out of material, whereupon preferably steel sections are fitted around the center piece and the latter is reassembled in the block with the steel sections projecting from the block and retained therebetween. A releasing substance is applied, preferably by spraying, to the inside of the projecting portions of the steel sections, in order to permit removal of the male body poured into the block. Material, as for instance plastic material, is then poured in its liquid state int-o the space defined by the top face of the center piece and the steel sections to form a center 3,228,2fi3 Patented Jan. 11, 1966 member of said poured material which solidifies at roomtemperature or at a lower or higher temperature, depending upon the desired speed of curing. The center member is then removed and separated from the steel sections, to be put into a frame larger than the center member. For the purpose of providing exact die clearance and also allowance for shrinkage of material, a layer of spacing material, as for instance plastic, is applied to the inner and outer surface, respectively, of the center member. Material of the same nature as the first used material, as for instance plastic material, is then poured into the frame to obtain a female member complementary to the male center member, considering the spacing layer. The male center member is then removed from the female member and tool steel in its liquid state is poured into the female member. Upon cooling, the tool steel center body is removed from the female member and applied to a support mounted to operate as a male punch, while the mounted steel sections are disposed opposite the male punch to operate as a female die.

With these and other objects in View, which will become apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawing, in which:

FIGURE 1 is a perspective exploded view of a wood block and its complementary center piece;

FlG. 2 is a top perspective view of the wood block, the center piece being reinserted, together with tool steel sections;

FIG. 3 is a top perspective view of the wood block with its center piece and the tool steel sections therebetween, and a punch molded therein;

FIG. 4 is a section along the lines 44 of FIG. 3;

FIG. 5 is a top perspective view of the molded punch upon removal thereof from the blade means and surrounded by a frame;

FIG. 6 is a section along the lines 6-6 of FIG. 5;

FIG. 7 is a section, similar to that of FIG. 6, of the frame after pouring material into the frame surrounding the molded punch;

FIG. 8 is a top perspective view of the female mold after removing the molded punch therefrom;

FIG. 9 is a section along the lines 9-9 of FIG. 8;

FIG. 10 is a top perspective view of the female mold indicating schematically the pouring of tool steel in its liquid state into the female mold;

FIG. 11 is a top perspective view of the tool steel punch;

FIG. 12 is a top perspective view of the male punch member mounted on a press plate;

FIG. 13 is a bottom perspective View of the female die member mounted on a press plate; and

FIG. 14 is a section along the lines 1414 of FIG. 12 indicating the alignment and cooperation of the male punch member with the female punch member.

Referring now to the drawing, the present method provides at first the production of a provisional male punch member, as well as a female die member, and the provisional male punch member is used, as set forth below in greater detail, for the production of the tool steel male punch member, which permits for practical purposes an unlimited number of stampings.

The method according to the present invention provides at first a wood block 1 on which the outline of the shape to be punched out of sheet material, bars, flat stock, or the like is marked. A centerpiece 2 is then cut out from the wood block 1 along the marked lines and removed from the wood block 1. Tool steel sections 3 are fitted to the side faces of the centerpiece 2, whereupon the centerpiece 2 is inserted again into the wood block 1 together with the tool steel sections 3. In order to bring about a good fit of the tool steel sections 3 between the centerpiece 2 and the wood block 1 it is preferable to use a saw blade (not shown) for cutting out the centerpiece 2, which saw blade has a thickness equivalent to that of the steel sections 3, or the saw blade may have lesser thickess, in which case by example a press fit or any other suitable means can be used.

Upon reassembling the centerpiece 2 with the tool steel sections 3 into the wood block 1, the tool steel sections 3 project above the top face of the wood block 1 and the centerpiece 2, respectively, and this assembled unit is used to produce an intermediate or provisional complementary male punch member 5. A releasing substance is applied, preferably by spraying to the inside of the projecting portions of the steel sections, in order to permit removal of the male body poured into the block. The production of the intermediate male punch member is brought about by pouring a suitable material, which may be an alloy, a plastic or any other suitable material having characteristics, which makes it suitable for the present purpose, on top of the centerpiece 2, whereby the tool steel sections 3 constitute the lateral limitations during the pouring of the material. The internal shapes thus formed in the mold may be used as transfer means. The intermediate male punch member may solidify at room temperature or at a lower or higher temperature, depending upon the desired speed of curing.

As indicated in FIG. 5 of the drawing, the intermediate male punch member 5 is placed into a frame 6 which surround the member 5. terial of wax sheeting, steel stripping, cold poured ceramic, fiber glass, or any other suitable material, is applied to the outer faces of the provisional punch member 5, in order to provide die clearance as well as allowance of shrinkage and substantially the same material used for pouring in the forming of the provisional male punch member 5 is also used for the pouring of an intermediate female die member 8, as clearly shown in FIGS. 7, 8' and 9. Upon cooling of the intermediate female die member 8, the male punch member 5 is removed therefrom.

The female die member 8 is used as a mold for producing the final male punch member 10 which is formed by pouring tool steel in its liquid state, as schematically shown in FIG. 10, where the liquid tool steel is poured from a ladle 11, to obtain the male punch member 10, as shown in FIG. 11. Prior to the pouring of liquid steel, a releasing substance may be applied to the inner faces of the female die member 8, yet such substance can be dispensed With.

FIGS. 12 to 14 disclose the mounting of the male punch member 10 and the female die member 1, for instance in a press 12. In FIG. 12 the male punch member 10 is preferably mounted on a steel plate 13. The female die 1 with the tool steel sections 3 is also preferably mounted on a plate 14 and opposite the male punch member.

While I have disclosed one embodiment of the present invention, it is to be understood that this embodiment is given by example only and not in a limiting sense, the

A thin layer 7 of spacing mascope of the present invention being determined by the object-s and the claims.

I claim: 1. A method of making cutting dies comprising the 5 steps of cutting out of a block a centerpiece having the inner and outer contour of an article to be punched out of fiat material, fitting tool steel sections around said centerpiece and reassembling said centerpiece in said block with said tool steel sections projecting from said block and retained therebetween to form a first female die member, pouring material in its liquid state into the space defined by the top face of said centerpiece and said tool steel sections to form a first punch member of a contour complementary to said centerpiece, surrounding said first punch member by a frame, pouring material into the space defined between said frame and said first punch member, to produce a second female die member, pouring tool steel in its liquid state into said second female die member to produce a second male punch member, removing said second male punch member from said second female die member. 2. The method, as set forth in claim 1, wherein said first of said female die members is mounted for the punching operation. 3. The method, as set forth in claim 1, which includes the step of applying a releasing substance to the inside of the projecting portion of said tool steel sections, prior to said step of pouring material into the space defined by the top face of said centerpiece and said tool steel sections. 4. The method, as set forth in claim 1, which includes the step of applying a releasing substance to the inside of said second female die member prior to said step of pouring tool steel into second female die member. 5. The method, as set forth in claim 1, which includes the step of applying a layer of spacing material, of a thickness 4 complementary to the desired die clearance related to the thickness of the material to be worked, as well as allowance of shinkage, to the outer face of said first punch member. 6. The method, as set forth in claim 1, which includes the step of mounting said second male punch member and one of said female die members in opposite arrangement for the punching operation.

No references cited.

GRANVILLE Y. CUSTER, JR.,' Primary Examiner,

Claims (1)

1. A METHOD OF MAKING CUTTING DIES COMPRISING THE STEPS OF CUTTING OUT OF A BLOCK A CENTERPIECE HAVING THE INNER AND OUTER CONTOUR OF AN ARTICLE TO BE PUNCHED OUT OF FLAT MATERIAL, FITTING TOOL STEEL SECTIONS AROUND SAID CENTERPIECE AND REASSEMBLING SAID CENTERPIECE IN SAID BLOCK WITH SAID TOOL STEEL SECTIONS PROJECTING FROM SAID BLOCK AND RETAINED THEREBETWEEN TO FORM A FIRST FEMALE DIE MEMBER, POURING MATERIAL IN ITS LIQUID STATE INTO THE SPACE DEFINED BY THE TOP FACE OF SAID CENTERPIECE AND SAID TOOL STEEL SECTIONS TO FORM A FIRST PUNCH MEMBER OF A CONTOUR COMPLEMENTARY TO SAID CENTERPIECE, SURROUNDING SAID FIRST PUNCH MEMBER BY A FRAME, POURING MATERIAL INTO THE SPACE DEFINED BETWEEN SAID FRAME AND SAID FIRST PUNCH MEMBER, TO PRODUCE A SECOND FEMALE DIE MEMBER, POURING TOOL STEEL IN ITS LIQUID STATE INTO SAID SECOND FEMALE DIE MEMBER TO PRODUCE A SECOND MALE PUNCH MEMBER, REMOVING SAID SECOND MALE PUNCH MEMBER FROM SAID SECOND FEMALE DIE MEMBER.
US366555A 1964-05-11 1964-05-11 Method of making cutting dies Expired - Lifetime US3228263A (en)

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US366555A US3228263A (en) 1964-05-11 1964-05-11 Method of making cutting dies

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US366555A US3228263A (en) 1964-05-11 1964-05-11 Method of making cutting dies
NL6408188A NL6408188A (en) 1964-05-11 1964-07-17
LU46633D LU46633A1 (en) 1964-05-11 1964-07-28
BE651951D BE651951A (en) 1964-05-11 1964-08-18
GB1816265A GB1082166A (en) 1964-05-11 1965-04-29 Method of making cutting dies

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GB (1) GB1082166A (en)
LU (1) LU46633A1 (en)
NL (1) NL6408188A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157669A (en) * 1977-10-12 1979-06-12 Pilao S/A Maquinas E Equipamentos Method to manufacture comminuting discs for wood pulp refining machines
WO2003002310A1 (en) * 2001-06-29 2003-01-09 Provo Craft & Novelty, Inc. Apparatus for forming die cuts and method of manufacturing same
US20040255741A1 (en) * 2003-06-23 2004-12-23 Deng Guo Rui Metal die cutting apparatus and method of forming same
US20050028644A1 (en) * 2003-07-17 2005-02-10 Ellison Educational Equipment, Inc. Method of making a thin die to be used in a press
US20050132861A1 (en) * 2003-12-22 2005-06-23 Deng Guo R. Apparatus for forming die cuts
US20060037455A1 (en) * 2004-07-16 2006-02-23 Yeqing Deng Pattern cutter
US20060042419A1 (en) * 2004-07-16 2006-03-02 Yeqing Deng Pattern cutter, its processing methods and moulds
US20060179995A1 (en) * 2004-10-28 2006-08-17 Faye Angevine Image cutter for producing stereo relief image
US20060219077A1 (en) * 2005-01-20 2006-10-05 Yeqing Deng Crank roller paper cutting device
US20070186747A1 (en) * 2005-12-21 2007-08-16 Faye Angevine Die cutter
US20070214972A1 (en) * 2006-01-30 2007-09-20 Gerry Ayala Roller die press
US20100136234A1 (en) * 2008-12-02 2010-06-03 Fujifilm Corporation Inkjet recording method
US20110139021A1 (en) * 2008-10-07 2011-06-16 Faye Angevine Apparatus for forming embossed and printed images
US8789461B2 (en) 2011-01-03 2014-07-29 Bai Win Mercantile Corp (H.K.) Ltd. Double-sided paper embossing apparatus
US20160221206A1 (en) * 2015-01-30 2016-08-04 Steel Rule Diemasters, Inc. Press Cutting Die Assembly
US10105862B1 (en) 2017-03-31 2018-10-23 Biocut, Llc Fenestrated graft press cutting die assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279025B (en) * 1993-06-16 1997-01-15 Nissan Europ Tech Centre Casting model

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157669A (en) * 1977-10-12 1979-06-12 Pilao S/A Maquinas E Equipamentos Method to manufacture comminuting discs for wood pulp refining machines
WO2003002310A1 (en) * 2001-06-29 2003-01-09 Provo Craft & Novelty, Inc. Apparatus for forming die cuts and method of manufacturing same
US6626965B2 (en) * 2001-06-29 2003-09-30 Provo Craft & Novelty, Inc. Apparatus for forming die cuts and method of manufacturing same
US20040255741A1 (en) * 2003-06-23 2004-12-23 Deng Guo Rui Metal die cutting apparatus and method of forming same
US20070051204A1 (en) * 2003-07-17 2007-03-08 Ellison Educational Equipment, Inc. Method of making a thin die to be used in a press
US20050028644A1 (en) * 2003-07-17 2005-02-10 Ellison Educational Equipment, Inc. Method of making a thin die to be used in a press
US20050132861A1 (en) * 2003-12-22 2005-06-23 Deng Guo R. Apparatus for forming die cuts
US20060037455A1 (en) * 2004-07-16 2006-02-23 Yeqing Deng Pattern cutter
US20060042419A1 (en) * 2004-07-16 2006-03-02 Yeqing Deng Pattern cutter, its processing methods and moulds
US20060179995A1 (en) * 2004-10-28 2006-08-17 Faye Angevine Image cutter for producing stereo relief image
US7360482B2 (en) 2005-01-20 2008-04-22 Yeqing Deng Crank roller paper cutting device
US20060219077A1 (en) * 2005-01-20 2006-10-05 Yeqing Deng Crank roller paper cutting device
US7624678B2 (en) 2005-01-20 2009-12-01 Yeqing Deng Crank roller paper cutting device
US20070186747A1 (en) * 2005-12-21 2007-08-16 Faye Angevine Die cutter
US20070214972A1 (en) * 2006-01-30 2007-09-20 Gerry Ayala Roller die press
US7743700B2 (en) 2006-01-30 2010-06-29 Provo Craft and Novelry, Inc. Roller die press
US20110139021A1 (en) * 2008-10-07 2011-06-16 Faye Angevine Apparatus for forming embossed and printed images
US8522680B2 (en) 2008-10-07 2013-09-03 Faye Angevine Apparatus for forming embossed and printed images
US20100136234A1 (en) * 2008-12-02 2010-06-03 Fujifilm Corporation Inkjet recording method
US8789461B2 (en) 2011-01-03 2014-07-29 Bai Win Mercantile Corp (H.K.) Ltd. Double-sided paper embossing apparatus
US20160221206A1 (en) * 2015-01-30 2016-08-04 Steel Rule Diemasters, Inc. Press Cutting Die Assembly
US10343298B2 (en) * 2015-01-30 2019-07-09 Biocut, Llc Press cutting die assembly
US10105862B1 (en) 2017-03-31 2018-10-23 Biocut, Llc Fenestrated graft press cutting die assembly

Also Published As

Publication number Publication date
BE651951A (en) 1964-12-16
NL6408188A (en) 1965-11-12
LU46633A1 (en) 1964-10-22
GB1082166A (en) 1967-09-06

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