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GB1489812A - Method of making finished steel castings - Google Patents

Method of making finished steel castings

Info

Publication number
GB1489812A
GB1489812A GB488/75A GB48875A GB1489812A GB 1489812 A GB1489812 A GB 1489812A GB 488/75 A GB488/75 A GB 488/75A GB 48875 A GB48875 A GB 48875A GB 1489812 A GB1489812 A GB 1489812A
Authority
GB
United Kingdom
Prior art keywords
casting
dies
gates
castings
shearing
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
GB488/75A
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.)
Evans Products Co
Original Assignee
Evans Products Co
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 Evans Products Co filed Critical Evans Products Co
Publication of GB1489812A publication Critical patent/GB1489812A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002Hybrid process, e.g. forging following casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00Cutting-off surplus material, e.g. gates; Cleaning and working on castings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Forging (AREA)

Abstract

1489812 Finishing steel castings EVANS PRODUCTS CO 6 Jan 1975 [7 Jan 1974] 488/75 Headings B3F B3W B3A and B3V A method of making finished steel castings of high accuracy of shape and dimension without excessive cold finishing involving grinding, straightening or machining off of gates, rivers, flash, &c., is by casting the objects in moulds where the gates are in the region of the parting line on the lateral surfaces of the casting. After cooling the casting to a non-homogeneous ascast grain structure, the casting is reheated and homogenized at a temperature above the upper critical temperature until the structure is uniformly austenitic, and while the casting is at (or near) that temperature, i.e. in a plastic state, placing it in a set of co-operating dies which shear off the gates, rivers and parting line flash. The dies may be of such a type that, simultaneously with the shearing of the gates &c., the castings may be dimensionally altered by pressing or alternatively the castings may be coined or pierced. While the pressing, coining or piercing operation may be carried out in the same set of dies as the shearing, multiple sets of dies may be used in rapid succession, so that reheating to above the upper critical temperature is not necessary. In a modification, the shearing/working dies may be of such a design as to alter the shape of the casting to provide a partially enclosed cavity in the final casting without the necessity of using a core in the original casting. The final step in the process is the removal of the sheared, coined, pressed, pierced or formed casting from the die followed by cooling, which may be controlled.
GB488/75A 1974-01-07 1975-01-06 Method of making finished steel castings Expired GB1489812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431233A US3895968A (en) 1974-01-07 1974-01-07 Method of making finished steel castings

Publications (1)

Publication Number Publication Date
GB1489812A true GB1489812A (en) 1977-10-26

Family

ID=23711046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB488/75A Expired GB1489812A (en) 1974-01-07 1975-01-06 Method of making finished steel castings

Country Status (11)

Country Link
US (1) US3895968A (en)
JP (1) JPS50101229A (en)
BE (1) BE823773A (en)
CA (1) CA1047373A (en)
CH (1) CH596918A5 (en)
DE (1) DE2454979A1 (en)
FR (1) FR2256792B1 (en)
GB (1) GB1489812A (en)
IT (1) IT1023372B (en)
SE (1) SE418466B (en)
ZA (1) ZA746698B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151710A (en) * 1974-05-29 1975-12-05
JPS5440233A (en) * 1977-07-07 1979-03-29 Citroen Sa Breaking machine for deaddhead of cast products
DE3373281D1 (en) * 1983-03-14 1987-10-08 Serio Thomas Di Method of producing pieces of aluminium or aluminium alloy
DE19638506A1 (en) * 1996-09-20 1998-03-26 Leybold Vakuum Gmbh Procedure for examining a plurality of similar test objects for leaks and leak detectors suitable for carrying out this procedure
US20020170635A1 (en) * 1998-05-04 2002-11-21 Diserio Emile-Thomas Process for manufacturing aluminum alloys and aluminium castings
FR2778125B1 (en) * 1998-05-04 2000-07-07 Serio Emile Di PROCESS FOR MANUFACTURING PARTS OF CAST ALLOYS, PARTICULARLY ALUMINUM
FR2803232B1 (en) * 1999-12-29 2002-04-26 Serio Emile Di IMPROVED PROCESS FOR MANUFACTURING LIGHT ALLOY PARTS
DE102009035702A1 (en) * 2009-07-30 2011-02-03 Benteler Automobiltechnik Gmbh Chassis component for a motor vehicle and method of manufacture
DE102009054315A1 (en) * 2009-11-24 2011-05-26 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component
DE102014221994B4 (en) * 2014-10-29 2023-03-30 Bayerische Motoren Werke Aktiengesellschaft Manufacture and processing of castings
CN113510231B (en) * 2021-04-23 2022-07-05 深圳领威科技有限公司 Cover half subassembly and die casting machine
CN115301888B (en) * 2022-06-27 2024-09-10 山东润金重工科技有限公司 Bearing forging cooling temperature control equipment and control method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352408A (en) * 1941-07-03 1944-06-27 Meehanite Metal Corp Method of producing ferrous castings having desired physical properties
US2901384A (en) * 1952-02-20 1959-08-25 Renault Method for treating cast iron castings
US2875109A (en) * 1954-08-25 1959-02-24 Eimco Corp Method for the isothermal treatment of alloys after casting

Also Published As

Publication number Publication date
SE418466B (en) 1981-06-09
US3895968A (en) 1975-07-22
DE2454979A1 (en) 1975-07-17
FR2256792B1 (en) 1978-09-29
IT1023372B (en) 1978-05-10
CA1047373A (en) 1979-01-30
CH596918A5 (en) 1978-03-31
BE823773A (en) 1975-04-16
SE7416169L (en) 1975-07-08
FR2256792A1 (en) 1975-08-01
ZA746698B (en) 1975-11-26
JPS50101229A (en) 1975-08-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee