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GB998287A - - Google Patents

Info

Publication number
GB998287A
GB998287A GB2304/63A GB230463A GB998287A GB 998287 A GB998287 A GB 998287A GB 2304/63 A GB2304/63 A GB 2304/63A GB 230463 A GB230463 A GB 230463A GB 998287 A GB998287 A GB 998287A
Authority
GB
United Kingdom
Prior art keywords
punch
sleeve
foot
die cavity
head
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
Application number
GB2304/63A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB998287A publication Critical patent/GB998287A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • 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
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

998,287. Extruding; forging; making spark plug casings. ROBERT BOSCH G.m.b.H. Jan. 18, 1963 [Jan. 18, 1962], No. 2304/63. Headings B3A, B3H and B3P. A hollow shouldered article 2, such as a screw closure or spark plug casing, having a partly solid foot 2c, a hollow cylindrical portion 2a and an enlarged head 2b is made by placing a blank 1 cut from cylindrical stock in a die cavity 4 of the desired external shape and pressing it in a single stroke by a punch 26 having a nose end 38 and which is surrounded by a guiding sleeve 41 whose end 42 fits the die cavity 4a, the foot 2c being formed by forward extrusion, the head portion 2b by transverse flow and the centre portion 2a by backward extrusion. The cold blank sheared from bar stock and lubricated, is inserted in the die which comprises three parts 3a, 3b, 3c clamped together on a base 6 by an outer ring 5 and screws 13. An ejector pin 23 closes the bore of the die cavity and also forms a recess in the foot 2c. To assist sealing of the die parts they are in contact only over a small inner annular area. Die cavity 4a is of hexagonal cross-section to provide a hexagonal head 2b on the spark plug casing. Punch 26 has guiding lands 36, 39 slidable within the sleeve 41 and is clamped by ring 31 and screws 34 to an upper platen 29 fixed to the press ram. Sleeve 41 has limited movement relative to the punch and is connected by rods 45 to a cross-head 48 upon which an adjustable downward pressure P is applied through rod 49 and lever 52. This pressure may be hydraulic or produced by springs or weights. During the retraction stroke of the punch, the downward pressure P on the sleeve acts to strip the workpiece from the punch. If this does not occur the sleeve is also retracted and its lever 52 engages a switch 53 which stops the press. Finally, the foot 2c is pierced and threaded externally and the centre part is knurled.
GB2304/63A 1962-01-18 1963-01-18 Expired GB998287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB65552A DE1259182B (en) 1962-01-18 1962-01-18 Device for cold pressing double cup-shaped spark plug housings

Publications (1)

Publication Number Publication Date
GB998287A true GB998287A (en) 1965-07-14

Family

ID=6974820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2304/63A Expired GB998287A (en) 1962-01-18 1963-01-18

Country Status (4)

Country Link
US (1) US3280613A (en)
DE (1) DE1259182B (en)
FR (1) FR1345423A (en)
GB (1) GB998287A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403845A1 (en) * 1977-09-27 1979-04-20 Mannesmann Ag METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS
US4321816A (en) * 1978-08-08 1982-03-30 Kyodo Insatsu Kabushiki Kaisha Metal tube and apparatus and method for manufacturing the same

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261735B (en) * 1963-12-12 1968-02-22 Unterstuetzungskasse Der Lands Method and device for the non-cutting hot production of toothed wheels by hot forming
JPS52132490A (en) * 1976-04-30 1977-11-07 Yoshitaka Nakanishi Method of sinking counter sink in plate blank
GB1596641A (en) * 1977-02-25 1981-08-26 Avdel Ltd Fault detector for a metal-forming machine
US4197757A (en) * 1977-04-13 1980-04-15 Hackett Kenneth P Method and apparatus for the cold forming of metal
US4341106A (en) * 1977-04-13 1982-07-27 Gleason Works Apparatus for controlling the movement of a reciprocatory hydraulically driven element of a metal forming machine
US4301671A (en) * 1980-02-04 1981-11-24 The National Machinery Company Supported knockout pin assembly for forging machines or the like
DE3017821A1 (en) * 1980-05-08 1981-11-12 Mannesmann AG, 4000 Düsseldorf DEVICE FOR GUIDING THE THORN IN HOLE AND FLOW PRESSES
US4381594A (en) * 1981-02-17 1983-05-03 Imperial Clevite Inc. Method of cold forming coupling shell
US4463590A (en) * 1982-02-25 1984-08-07 The Harris-Thomas Drop Forge Company Forging method
JPS59141340A (en) * 1983-02-02 1984-08-14 Hitachi Ltd Production of stepped hollow parts
US4655071A (en) * 1985-11-26 1987-04-07 The U.S. Baird Corporation Transfer press with quick change die set arrangement
DE3735446C1 (en) * 1987-10-20 1989-03-23 Werner Dipl-Ing Kaeseler Forming tool and method for reprocessing spot welding electrodes
US4945749A (en) * 1989-10-30 1990-08-07 General Motors Corporation Cold forming dies and cold forming process
US5373720A (en) * 1992-09-03 1994-12-20 Water Gremlin Company Method of making battery terminal with necked flange
US5296317A (en) * 1992-09-03 1994-03-22 Water Gremlin Co. High torque battery terminal and method of making same
US5791183A (en) * 1995-05-17 1998-08-11 Tulip Corporation Apparatus and method for cold forming a ring on a lead alloy battery terminal including an anti-torque structure
US5632173A (en) * 1995-05-17 1997-05-27 Tulip Corporation Apparatus and method for cold forming a ring on a lead alloy battery terminal
US5606887A (en) * 1995-06-02 1997-03-04 Tulip Corporation Apparatus and method for cold forming an L-shaped lead alloy battery terminal
US5655400A (en) * 1995-06-02 1997-08-12 Tulip Corporation Progressive die apparatus and method for making a lead alloy battery terminal
SE512119C2 (en) * 1998-06-29 2000-01-31 Eric Wirgarth Press tool for submersible forging and procedure for submersible forging with this tool
US6205828B1 (en) * 1998-08-24 2001-03-27 Honda Giken Kogyo Kabushiki Kaisha Forging die, and method and apparatus for controlling the same
US6701998B2 (en) 2002-03-29 2004-03-09 Water Gremlin Company Multiple casting apparatus and method
US7163763B2 (en) * 2002-06-04 2007-01-16 Tulip Corporation Cold formed battery terminal
US6902095B2 (en) * 2003-07-03 2005-06-07 Water Gremlin Company Two part cold formed battery terminal
US8701743B2 (en) 2004-01-02 2014-04-22 Water Gremlin Company Battery parts and associated systems and methods
US7338539B2 (en) 2004-01-02 2008-03-04 Water Gremlin Company Die cast battery terminal and a method of making
US8497036B2 (en) 2009-04-30 2013-07-30 Water Gremlin Company Battery parts having retaining and sealing features and associated methods of manufacture and use
US9748551B2 (en) 2011-06-29 2017-08-29 Water Gremlin Company Battery parts having retaining and sealing features and associated methods of manufacture and use
US9954214B2 (en) 2013-03-15 2018-04-24 Water Gremlin Company Systems and methods for manufacturing battery parts
DE102016103927A1 (en) * 2016-03-04 2017-09-07 Sms Group Gmbh Forging press and method for forging a workpiece in a forging press
CA3092654A1 (en) 2018-12-07 2020-06-11 Water Gremlin Company Battery parts having solventless acid barriers and associated systems and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US427435A (en) * 1890-05-06 manville
US2104222A (en) * 1932-09-27 1938-01-04 Aluminum Co Of America Method of extruding metal containers
US2261304A (en) * 1939-02-25 1941-11-04 Max H Hoepli Manufacture of shells for ordnance purposes
US2679931A (en) * 1948-10-29 1954-06-01 Gen Motors Corp Metal pressing and piercing apparatus
US2748932A (en) * 1950-05-13 1956-06-05 American Radiator & Standard Process and apparatus for cold shaping steel
FR1042580A (en) * 1950-05-23 1953-11-02 L Morane Ets Method of drilling metal ingots and press for the implementation of this method
US2904173A (en) * 1954-03-29 1959-09-15 Frederick W Braun Plunger and die for indirect extrusion
FR1277132A (en) * 1961-01-03 1961-11-24 Nat Machinery Co Method and machine for the manufacture of an elongated hollow article such as a spark plug and product according to that obtained by said process or similar process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403845A1 (en) * 1977-09-27 1979-04-20 Mannesmann Ag METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS
US4321816A (en) * 1978-08-08 1982-03-30 Kyodo Insatsu Kabushiki Kaisha Metal tube and apparatus and method for manufacturing the same

Also Published As

Publication number Publication date
FR1345423A (en) 1963-12-06
US3280613A (en) 1966-10-25
DE1259182B (en) 1968-01-18

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