GB1489812A - Method of making finished steel castings - Google Patents
Method of making finished steel castingsInfo
- 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
Links
Classifications
-
- 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
- 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
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-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.
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 (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50151710A (en) * | 1974-05-29 | 1975-12-05 | ||
DE2829729C3 (en) * | 1977-07-07 | 1982-02-25 | Automobiles Peugeot, 75116 Paris | Machine for breaking off the necks of lost heads in castings |
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 |
Family Cites Families (3)
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 |
-
1974
- 1974-01-07 US US431233A patent/US3895968A/en not_active Expired - Lifetime
- 1974-10-22 ZA ZA00746698A patent/ZA746698B/en unknown
- 1974-11-20 DE DE19742454979 patent/DE2454979A1/en not_active Withdrawn
- 1974-11-22 IT IT54189/74A patent/IT1023372B/en active
- 1974-12-02 JP JP49137078A patent/JPS50101229A/ja active Pending
- 1974-12-20 SE SE7416169A patent/SE418466B/en unknown
- 1974-12-23 BE BE151868A patent/BE823773A/en unknown
- 1974-12-31 FR FR7443384A patent/FR2256792B1/fr not_active Expired
- 1974-12-31 CH CH1740974A patent/CH596918A5/xx not_active IP Right Cessation
-
1975
- 1975-01-03 CA CA217,310A patent/CA1047373A/en not_active Expired
- 1975-01-06 GB GB488/75A patent/GB1489812A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2256792B1 (en) | 1978-09-29 |
SE7416169L (en) | 1975-07-08 |
ZA746698B (en) | 1975-11-26 |
CH596918A5 (en) | 1978-03-31 |
IT1023372B (en) | 1978-05-10 |
DE2454979A1 (en) | 1975-07-17 |
BE823773A (en) | 1975-04-16 |
FR2256792A1 (en) | 1975-08-01 |
CA1047373A (en) | 1979-01-30 |
US3895968A (en) | 1975-07-22 |
JPS50101229A (en) | 1975-08-11 |
SE418466B (en) | 1981-06-09 |
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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 |