GB1022139A - A method of manufacturing generally cupped and cylindrically shaped parts - Google Patents

A method of manufacturing generally cupped and cylindrically shaped parts

Info

Publication number
GB1022139A
GB1022139A GB1527964A GB1527964A GB1022139A GB 1022139 A GB1022139 A GB 1022139A GB 1527964 A GB1527964 A GB 1527964A GB 1527964 A GB1527964 A GB 1527964A GB 1022139 A GB1022139 A GB 1022139A
Authority
GB
United Kingdom
Prior art keywords
blank
die
segments
inwardly
members
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
GB1527964A
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.)
DARWIN STEWARD COX
Original Assignee
DARWIN STEWARD COX
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 DARWIN STEWARD COX filed Critical DARWIN STEWARD COX
Priority to GB1527964A priority Critical patent/GB1022139A/en
Publication of GB1022139A publication Critical patent/GB1022139A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21D53/00Making other particular articles
    • B21D53/26Making other particular articles wheels or the like
    • B21D53/34Making other particular articles wheels or the like brake drums

Abstract

1,022,139. Making wheels, brake drums, upsetting; corrugating, rolling, stamping. D. S. COX. April 13, 1964, No. 15279/64. Headings B3A, B3E, B3H, B3M and B3Q. A method of making a cupped and cylindrically shaped part such as e.g. a vehicle wheel or brake drum shell cylindrical blank, rolled from strip longitudinally seam welded and if necessary normalized is initially located in a die and expanded over a portion of its length into a conical form by a plurality of radially movable segments 16 actuated by a co-operating wedge 17 and the upper edge of the blank is bent inwardly as at 18. The conical portion is subsequently confined by die members 19, 20 (Fig. 4A, not shown) and the upper portion 15 confined by a movable die member 26 co-operating with a member 22 which, when lowered, arcuately curves the portion 15 inwardly between the die surface 25, 27 and effects an increase in the thickness thereof. The blank is next located in a die, (Fig. 6, not shown) comprising elements 32, 34 having movable segments 35, 37, 45 and the hub section made flat and perpendicular to the blank axis whilst the conical portion is reformed into a cylindrical section 38. Finally the inner annular edge of the blank is trimmed, bolt holes punched and the lip 40 inwardly curled as required to form a brake drum. The lip may be curled and the central portion corrugated by rolling. The upper end of the blank may be rotated on a mandrel and externally tapered by rolls to offset the subsequent unequal thickening which takes place during forming in the dies. To produce a tubeless-type wheel disc a cylindrical blank 2 is initially rotated on a mandrel and the external surface engaged by rollers 64 (Fig. 10A, not shown) which follow cams 68 to vary the wall thickness thereof in predetermined areas related to the contour of the finished wheel and effect lengthening of the blank against a pressure yielding ring 70. Alternatively the varying wall thickness may be made by rolling the strip prior to forming it into the cylindrical blank. The profiled blank is subsequently formed in a similar manner to the brake drum above in successive die units, (Figs. 11, 12 not shown), having radially inwardly and outwardly slidable sets of die segments 121, 122 co-operating with wedge members 126, 127. To produce a locking ring type of wheel the blank is finally formed in a die unit (Fig. 14, not shown) which comprises radially expandable segments 150, a central floating die segment 164 attached to a knockout bar 188 and radially spaced die segments 178 spring biased into their retracted position. As the die closes the segment 164 is pushed against the plate 122, the ring 166 advances to size the blank and the segments are expanded by sliding over the fixed wedge member 152 whilst the segments 178 are advanced by engagement with the cam ring 174 to form a peripheral groove 180 in the rim. Annealing may be carried out between the forming operations and the area of the locking ring groove heated during forming. The blank may be initially upset to reduce its diameter to within 25%-35% of the final diameter of the hub centre hole, annealed and upset to the required size. The dies are so constructed that as they open knock-out members and yieldingly mounted lower die members free the workpiece therefrom.
GB1527964A 1964-04-13 1964-04-13 A method of manufacturing generally cupped and cylindrically shaped parts Expired GB1022139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1527964A GB1022139A (en) 1964-04-13 1964-04-13 A method of manufacturing generally cupped and cylindrically shaped parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1527964A GB1022139A (en) 1964-04-13 1964-04-13 A method of manufacturing generally cupped and cylindrically shaped parts

Publications (1)

Publication Number Publication Date
GB1022139A true GB1022139A (en) 1966-03-09

Family

ID=10056244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1527964A Expired GB1022139A (en) 1964-04-13 1964-04-13 A method of manufacturing generally cupped and cylindrically shaped parts

Country Status (1)

Country Link
GB (1) GB1022139A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557479A1 (en) * 1983-12-30 1985-07-05 Dunlop Sa METHOD AND TOOLING FOR MAKING A WHEEL OF A WHEELED RIM VEHICLE IN A SINGLE PIECE OF STEEL
EP0781935A3 (en) * 1995-12-27 2000-03-29 Meritor Automotive, Inc. Composite brake drum and method for producing same
CN102489598A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Thermal bulging process for special-shaped bearing steel rolled ring workpieces
CN102489593A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Hot bulge forming method for aluminum-alloy flash buttwelding ring components
CN102489597A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Hot bulging method for rectangular bearing steel rolled ring
CN103056230A (en) * 2013-01-15 2013-04-24 哈尔滨东安发动机(集团)有限公司 Cylinder bulging forming die
CN103495622A (en) * 2013-07-11 2014-01-08 哈尔滨汽轮机厂有限责任公司 Shape correcting device of flame tube shell of gas turbine
CN106624657A (en) * 2016-12-29 2017-05-10 山西汤荣机械制造股份有限公司 Compound brake drum overall steel ring and manufacturing method thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148066A2 (en) * 1983-12-30 1985-07-10 Dunlop France Sa Method and apparatus for making a vehicle wheel with thinned rim from one piece of metal
EP0148066A3 (en) * 1983-12-30 1985-08-07 Dunlop S.A. Method and apparatus for making a vehicle wheel with thinned rim from one piece of metal
FR2557479A1 (en) * 1983-12-30 1985-07-05 Dunlop Sa METHOD AND TOOLING FOR MAKING A WHEEL OF A WHEELED RIM VEHICLE IN A SINGLE PIECE OF STEEL
EP0781935A3 (en) * 1995-12-27 2000-03-29 Meritor Automotive, Inc. Composite brake drum and method for producing same
CN102489593B (en) * 2011-11-24 2014-04-02 贵州安大航空锻造有限责任公司 Hot bulge forming method for aluminum-alloy flash buttwelding ring components
CN102489598A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Thermal bulging process for special-shaped bearing steel rolled ring workpieces
CN102489593A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Hot bulge forming method for aluminum-alloy flash buttwelding ring components
CN102489597A (en) * 2011-11-24 2012-06-13 贵州安大航空锻造有限责任公司 Hot bulging method for rectangular bearing steel rolled ring
CN102489597B (en) * 2011-11-24 2014-04-02 贵州安大航空锻造有限责任公司 Hot bulging method for rectangular bearing steel rolled ring
CN102489598B (en) * 2011-11-24 2014-04-02 贵州安大航空锻造有限责任公司 Thermal bulging process for special-shaped bearing steel rolled ring workpieces
CN103056230A (en) * 2013-01-15 2013-04-24 哈尔滨东安发动机(集团)有限公司 Cylinder bulging forming die
CN103056230B (en) * 2013-01-15 2015-10-28 哈尔滨东安发动机(集团)有限公司 Cylinder expansion forming mould
CN103495622A (en) * 2013-07-11 2014-01-08 哈尔滨汽轮机厂有限责任公司 Shape correcting device of flame tube shell of gas turbine
CN106624657A (en) * 2016-12-29 2017-05-10 山西汤荣机械制造股份有限公司 Compound brake drum overall steel ring and manufacturing method thereof

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