US3415095A - Process and apparatus for producing metal plates with integral stiffeners - Google Patents

Process and apparatus for producing metal plates with integral stiffeners Download PDF

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Publication number
US3415095A
US3415095A US614702A US61470267A US3415095A US 3415095 A US3415095 A US 3415095A US 614702 A US614702 A US 614702A US 61470267 A US61470267 A US 61470267A US 3415095 A US3415095 A US 3415095A
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US
United States
Prior art keywords
roll
die
container
pressure
workpiece
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
US614702A
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English (en)
Inventor
August R Bringewald
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.)
BRINGEWALD PROCESS CORP
Original Assignee
BRINGEWALD PROCESS CORP
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 BRINGEWALD PROCESS CORP filed Critical BRINGEWALD PROCESS CORP
Priority to US614702A priority Critical patent/US3415095A/en
Priority to GB4062/68A priority patent/GB1177883A/en
Priority to SE1473/68A priority patent/SE323342B/xx
Priority to FR1552693D priority patent/FR1552693A/fr
Priority to NL6801697A priority patent/NL6801697A/xx
Priority to BE710426D priority patent/BE710426A/xx
Priority to DE19681652575 priority patent/DE1652575A1/de
Application granted granted Critical
Publication of US3415095A publication Critical patent/US3415095A/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
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/008—Incremental forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/12—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gratings

Definitions

  • ABSTRACT OF THE DISCLOSURE Rolling mill techniques are applied to blanks of aluminum or other materials by loading a blank on the upper Sculptured face of a die that is located in a novel form of container, having a flexibly supported frame, which container definitely prevents the flow of material under rolling mill pressure outside the container by confining the material to a space constituting a pressure chamber, composed of a traveling portion defined by the upper Sculptured face of the die and the projecting upper edge of the container frame, and stationary closures on both feeding ends of the rolling mill, thereby forcing the material to follow the path of least resistance by filling the cavities of the die and producing the desired part and avoiding waste of material.
  • a rolling mill of conventional design is modied by adding a unit, consisting of a roll bed and an adjustable pressure control body on each feeding end of the rolling mill.
  • a novel form of container is loaded with a die, and a blank of process material placed on the upper face of the die which is Sculptured to facilitate the extrusion of a desired part.
  • the container comprises a bottom plate and a frame which is supported flexibly around the edge of the bottom plate.
  • the upper edge of the frame projects above the die, thereby surrounding the process material at a height of approximately the thickness of the same in order to restrain the material and prevent it from any plastic flow in its horizontal plane during processing.
  • the Sculptured face of the die together with the projecting edge of the container frame constitutes the traveling p0rtion of a pressure chamber.
  • the closure on top of the pressure chamber is provided by the two stationary adjustable pressure control bodies under which the traveling portion of the pressure chamber reciprocates.
  • the container with its contents is fed between the rolls of the rolling mill.
  • the container with its contents not only passes between the rolls of the rolling mill, but also between the roll beds and their respective pressure control units which are adjusted to induce auxiliary pressure into the blank in order to control the flow of material and prevent undesired material distribution.
  • the flexibly supported container frame retracts and adjusts itself in accordance with the reduction in thickness of the blank.
  • the plastic flow of the material, developed by the high compression forces of the upper roll, is confined to the previously described pressure chamber.
  • the displaced material, resulting from the reduction in thickness of the blank is trapped and forced to follow the path of least resistance by progressively filling the cavities of the entire sculptured face of the die as the container with its contents advances between the rolls of the rolling mill to produce the desired part.
  • FIG. l is partly a side elevational section and partly a sectional View on line 1-1 of FIG. 2 showing the arrangement of the main components in the initial position of processing a part.
  • FIG. 2 is a fragmentary cross-section on line 2-2 of FIG. l showing the relation of the main components during proces ing of a part.
  • FIG. 3 is a fragmentary cross-sectional view on the line 3-3 of FIG. l showing the relation of the main cornponcnts ready for processing a part.
  • FIG. 4 is a sectional plan view taken. on the line 4--4 of FIG. 5, with part of the blank material broken away to reveal a portion of the die.
  • FIG. 5 is a sectional elevation on the line 5 5 of FIG. 3 showing the position of the exibly supported container frame tilted under the impact of the upper roll It also shows the arrangement of the gear and :rack and the coupling of the container with the rack.
  • FIG. 6 is a perspective View of a part produced in accordance with the present invention.
  • the equipment for carrying out the process of my invention comprises generally the rolling mill with its upper adjustable roll 11 and lower roll 12 and a container 13. Gears 15 are xedly supported on two necks adjacent to the ends of the lower roll 12, and racks are provided to coact with gears 15 for feeding the container 13, prepared for processing and coupled with racks 20 by bolts 22 (FIG. 3), between the upper roll 11 and lower roll 12.
  • the rolling mill 10 includes roll beds 25 and pressure control bodies 35 on the feeding ends of rolling mill 10.
  • Each of the two roll beds 25 supports four cylinders 31 in which oil or air pressure actuates pistons 32 with their piston rods 33.
  • the four respective piston rods of each roll bed 25 support a pressure control body 35 to which the piston rods are secured by bolts 36.
  • the two pressure control bodies 35 may be adjusted separately to the required independent pressures by applying pressure as required to the respective sets of four cylinders. These pressures may be synchronized with the movements of the container 13 for the purposes mentioned below.
  • an enclosure 60 constituting a sealed chamber 61 is provided.
  • the purpose of the two pressure control bodies 35 and the sealed chamber will be hereinafter described.
  • the inner ends 68 (FIG. 5) of the pressure control bodies 35 are shaped to prevent their interference with the upper roll 11 and to provide freedom of movement for said pressure control bodies 35 in order to enable the clost ing of any gap which could occur between their inner ends 68 and the upper roll 11 for the purpose of preventing material tlashing and material escape.
  • the pressure control bodies may comprise rolls 67 as indicated in FIG. 5.
  • the container 13, adapted to receive a die 40, the spacers 52 (FIG. 3) and the process material 44, comprises a bottom plate 41 which has a stepped down recess around its outer edge to hold the elastic pad 42.
  • the elastic pad 42 supports the container frame 62 flexibly to enable said frame to retract and to adjust itself under the pressure of the upper roll 11 while the container 13 with its contents passes between said upper roll and lower roll 12 for processing.
  • One end of the container frame 62 is provided at both sides with holes 46 (FIG. 3) to receive bolts 22 (FIGS. 3 and 6) for coupling the container with the racks 20.
  • the die 40 having its upper face Sculptured to extrude a desired part, is loaded in the container 13 and a blank of process material 44 placed on said die in the space provided by the upper face of the die and the projecting edge of the flexibly supported container frame 62 which surrounds the die 40.
  • Expandable spacers 52 are placed between the longitiudinal beams of the container frame and process material for the purpose explained below. To prevent material waste, the volume of the process material is to be held within close tolerances of the volume of the finished part.
  • the loaded container 13, best shown in FIG. l, has a certain initial height which determines the adjustment of the upper roll 11 to an opening between the upper roll and lower roll 12 best suited for the desired extrusion results.
  • the container 13 with its contents is placed on the roll bed 25 in the space provided by said roll bed and preszure body 35, and coupled with racks 20 by bolts 22.
  • the gears 15, fastened to the necks of the lower roll 127 have a pitch diameter which coincides with the outer diameter of the body of the lower roll 12, and are adapted to coact with the racks 20 for the purpose of feeding the container 13 with its contents between the upper roll 11 and lowerl roll 12 at a speed identical with the circumferential speed of the outer diameter of the lower roll 12.
  • the pressure control bodies 35 are vertically adjusted by actuating the respective pistons 32 with the piston rods 33 to provide the upper stationary closures for the traveling portion of the pressure chamber 63 in which the extrusion process takes place.
  • the pressure chamber 63 is formed by the Sculptured upper face of die 40 and the projecting edge of the ilexibly supported container frame 62 with its expandable spacers 52 and, depending on the processing position of container 13, by the pressure control bodies 35.
  • the purpose of the pressure control bodies 35 is twofold: rst, to provide the upper stationary closures for the traveling part of the pressure chamber 63 as described above and, second, to induce auxiliary pressure into the process material as will be seen.
  • the entire area of the process material 44 is incrementally subjected to the full pressure of the upper roll 11 resulting in a most eifective extrusion impact per area unit.
  • the pressure control bodies 35 are adjusted to induce auxiliary pressure of a predetermined magnitude into the leading and trailing portions of the process material 44 for the duration of the process cycle.
  • the process material 44 together with elastic pads 42 gives way to the pressure of the upper pressure roll 11, and the exibly supported container frame 62 retracts and thereby adjusts the pressure chamber 63 in height in accordance with the reduction in thickness of said process material.
  • the spacers 52 made from steel or other material of higher mechanical properties than the process material, maintain their upper edge level with the changing upper face of the advancing process material and, acting like dams, seal the constantly changing gaps 64 that occur during processing between the upper edge 65 of the container frame 62 and the lower faces 66 of the pressure control bodies 35 to prevent lateral material escape.
  • the process material 44 trapped in the pressure chamber 63, yields to the pressure exerted by the upper roll 11 by reducing its thickness in accordance with the roll setting. Following the path of least resistance, the excess material, controlled by the auxiliary pressure of the pressure control bodies 35, is extruded into the cavities of the die 40 thereby producing the desired part.
  • Enclosure 60 constituting a processing chamber, is tightly sealed for the purpose of purging said chamber with inert gases, like helium or argon, for processing titanium, beryllium or other materials susceptible to atmospheric contamination when heated above the critical susceptive temperature.
  • inert gases like helium or argon
  • Apparatus for extruding material from a ductile workpiece to form an article of more complex contour than the workpiece comprising:
  • (a) rolling mill means including:
  • Apparatus as delined in claim 1 including a pair of pressure control mechanisms, one spaced above each of said support means, for engaging the upper surface of the frame and workpiece outside of the opposed roll means and cooperating at times with its associated support means to compress the frame and the workpiece.
  • each of said pressure control mechanisms comprises a plate having a ilat under surface adapted to engage the top surface of the frame.
  • each of said pressure control mechanisms comprises a plurality of parallel rolls adapted to engage the top surface of the frame.
  • Apparatus as defined in claim 2 comprising a pair of spacers extending along the sides of the frame between the frame and the workpiece, said spacers being deformable to maintain a seal between the frame below and the upper roll means and pressure control mechanisms above, to prevent lateral escape of metal from the workpiece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Extrusion Of Metal (AREA)
US614702A 1967-02-08 1967-02-08 Process and apparatus for producing metal plates with integral stiffeners Expired - Lifetime US3415095A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US614702A US3415095A (en) 1967-02-08 1967-02-08 Process and apparatus for producing metal plates with integral stiffeners
GB4062/68A GB1177883A (en) 1967-02-08 1968-01-25 Method and Apparatus for Forming Complex Articles by Extruding Material from a Ductile Workpiece
SE1473/68A SE323342B (US07754267-20100713-C00017.png) 1967-02-08 1968-02-05
FR1552693D FR1552693A (US07754267-20100713-C00017.png) 1967-02-08 1968-02-06
NL6801697A NL6801697A (US07754267-20100713-C00017.png) 1967-02-08 1968-02-07
BE710426D BE710426A (US07754267-20100713-C00017.png) 1967-02-08 1968-02-07
DE19681652575 DE1652575A1 (de) 1967-02-08 1968-02-08 Verfahren und Vorrichtung zur Herstellung von Metallplatten mit einteilig mit den Platten ausgebildeten Versteifungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US614702A US3415095A (en) 1967-02-08 1967-02-08 Process and apparatus for producing metal plates with integral stiffeners

Publications (1)

Publication Number Publication Date
US3415095A true US3415095A (en) 1968-12-10

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Application Number Title Priority Date Filing Date
US614702A Expired - Lifetime US3415095A (en) 1967-02-08 1967-02-08 Process and apparatus for producing metal plates with integral stiffeners

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US (1) US3415095A (US07754267-20100713-C00017.png)
BE (1) BE710426A (US07754267-20100713-C00017.png)
DE (1) DE1652575A1 (US07754267-20100713-C00017.png)
FR (1) FR1552693A (US07754267-20100713-C00017.png)
GB (1) GB1177883A (US07754267-20100713-C00017.png)
NL (1) NL6801697A (US07754267-20100713-C00017.png)
SE (1) SE323342B (US07754267-20100713-C00017.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756057A (en) * 1970-05-11 1973-09-04 Roll Forming Corp Roll forming
US3847004A (en) * 1971-03-25 1974-11-12 Bringewald Process Corp Apparatus and method for applying pressure and die and method for forming a part
FR2421012A1 (fr) * 1978-03-30 1979-10-26 Flight Furniture Procede de formage de toles par calandrage, et machine pour sa mise en oeuvre
FR2522998A1 (fr) * 1982-03-09 1983-09-16 Rex Jury Machine pour former des toles ou des feuilles minces de metal
EP0334976A1 (en) * 1984-09-06 1989-10-04 Joseph J. Mele Part-shaping apparatus by flow forging and sheet-metal rubber forming
US4907436A (en) * 1988-10-11 1990-03-13 Efco, Inc. Step forging press
US20040221635A1 (en) * 2000-11-11 2004-11-11 Bauder Hans Jorg Method for producing strip-shaped input stock, especially from metal, which is profiled in subsequent sections, and corresponding device
CN105665573A (zh) * 2014-12-05 2016-06-15 丰田自动车株式会社 针状翅片成形方法
CN106345928A (zh) * 2015-07-13 2017-01-25 丰田自动车株式会社 用于金属原料的表面粗化装置以及表面粗化方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112453735A (zh) * 2020-10-09 2021-03-09 湖北亿纬动力有限公司 一种极耳焊接方法、电池制造方法及电池

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US543607A (en) * 1895-07-30 Henry
US1967788A (en) * 1930-02-01 1934-07-24 Seiferth Hugo Apparatus for producing profile metal articles
DE1039016B (de) * 1955-04-25 1958-09-18 Gutehoffnungshuette Sterkrade Vorrichtung zum Einpressen von Sicken in Bleche
US2988838A (en) * 1958-01-29 1961-06-20 Eastern Engraving And Machine Process of preparing prototypes of embossed sheets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US543607A (en) * 1895-07-30 Henry
US1967788A (en) * 1930-02-01 1934-07-24 Seiferth Hugo Apparatus for producing profile metal articles
DE1039016B (de) * 1955-04-25 1958-09-18 Gutehoffnungshuette Sterkrade Vorrichtung zum Einpressen von Sicken in Bleche
US2988838A (en) * 1958-01-29 1961-06-20 Eastern Engraving And Machine Process of preparing prototypes of embossed sheets

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756057A (en) * 1970-05-11 1973-09-04 Roll Forming Corp Roll forming
US3847004A (en) * 1971-03-25 1974-11-12 Bringewald Process Corp Apparatus and method for applying pressure and die and method for forming a part
FR2421012A1 (fr) * 1978-03-30 1979-10-26 Flight Furniture Procede de formage de toles par calandrage, et machine pour sa mise en oeuvre
US4257251A (en) * 1978-03-30 1981-03-24 Flight Furniture Pty. Ltd. Metal forming process
FR2522998A1 (fr) * 1982-03-09 1983-09-16 Rex Jury Machine pour former des toles ou des feuilles minces de metal
EP0334976A1 (en) * 1984-09-06 1989-10-04 Joseph J. Mele Part-shaping apparatus by flow forging and sheet-metal rubber forming
US4907436A (en) * 1988-10-11 1990-03-13 Efco, Inc. Step forging press
US20040221635A1 (en) * 2000-11-11 2004-11-11 Bauder Hans Jorg Method for producing strip-shaped input stock, especially from metal, which is profiled in subsequent sections, and corresponding device
CN105665573A (zh) * 2014-12-05 2016-06-15 丰田自动车株式会社 针状翅片成形方法
JP2016107300A (ja) * 2014-12-05 2016-06-20 トヨタ自動車株式会社 ピン状フィンの形成方法
CN105665573B (zh) * 2014-12-05 2018-01-12 丰田自动车株式会社 针状翅片成形方法
US10099271B2 (en) 2014-12-05 2018-10-16 Toyota Jidosha Kabushiki Kaisha Pin fin forming method
CN106345928A (zh) * 2015-07-13 2017-01-25 丰田自动车株式会社 用于金属原料的表面粗化装置以及表面粗化方法

Also Published As

Publication number Publication date
DE1652575A1 (de) 1971-02-04
BE710426A (US07754267-20100713-C00017.png) 1968-06-17
NL6801697A (US07754267-20100713-C00017.png) 1968-08-09
SE323342B (US07754267-20100713-C00017.png) 1970-05-04
GB1177883A (en) 1970-01-14
FR1552693A (US07754267-20100713-C00017.png) 1969-01-03

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