GB1141084A - Process for the production of a piston blank - Google Patents
Process for the production of a piston blankInfo
- Publication number
- GB1141084A GB1141084A GB3701967A GB3701967A GB1141084A GB 1141084 A GB1141084 A GB 1141084A GB 3701967 A GB3701967 A GB 3701967A GB 3701967 A GB3701967 A GB 3701967A GB 1141084 A GB1141084 A GB 1141084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blank
- piston
- ring
- carrier
- preliminary body
- 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
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- 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
- B21K1/00—Making machine elements
- B21K1/18—Making machine elements pistons or plungers
-
- 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
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
1,141,084. Making pistons; forging; extruding. MAHLE K.G. 11 Aug., 1967 [17 March, 1967], No. 37019/67. Headings B3A, B3H and B3P. In a process for making a pressed piston blank having a light metal body and a ring carrier embedded therein of a material having greater hardness at higher temperatures, a preliminary body 10 corresponding approximately to the desired piston form is pressed from a light metal slug so that at its head end the diameter is reduced to the internal diameter of the ring carrier and parts protrude axially beyond the final crown surface. A ring-carrier blank 30 is shrunk on to a shoulder 14 formed at the transition to the reduced diameter head end, so that it is non-displaceable on the preliminary body. The preliminary body is then placed head downwardly into a second pressdie and a plunger 43, corresponding in form to the internal shape of the blank forms the piston crown in co-operation with a bottom insert 42 and die liner 41. As the plunger 43 forms the piston crown it forces the carrier blank 30 downwardly in the die until it abuts a shoulder 45 in the liner 41. The piston blank is finally machined to size and a ring groove formed in the blank 30, which may have irregular depressions formed in its surface into which the piston material is forced, Fig. 5 (not shown). The piston body may be of aluminiumsilicon alloy containing more than 12% silicon and it is formed at about 480‹ C. The ring carrier blank is heated to 450-500‹ C. before it is placed on the preliminary body, which is thereafter heated to this temperature range so that the part 13 expands and presses itself against the blank 30, its surface partly penetrating into the depressions on the latter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0073224 | 1967-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1141084A true GB1141084A (en) | 1969-01-22 |
Family
ID=7314910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3701967A Expired GB1141084A (en) | 1967-03-17 | 1967-08-11 | Process for the production of a piston blank |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1141084A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007025799A1 (en) * | 2005-08-29 | 2007-03-08 | Thyssenkrupp Metalurgica Campo Limpo Ltda. | Method, production line, and piston blank used for the production of a monolithic piston for combustion engines, and piston for combustion engines |
-
1967
- 1967-08-11 GB GB3701967A patent/GB1141084A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007025799A1 (en) * | 2005-08-29 | 2007-03-08 | Thyssenkrupp Metalurgica Campo Limpo Ltda. | Method, production line, and piston blank used for the production of a monolithic piston for combustion engines, and piston for combustion engines |
US8572843B2 (en) | 2005-08-29 | 2013-11-05 | Thyssenkrupp Metalurgica Campo Limpo Ltda. | Method, production line, and piston blank used for the production of a monolithic piston for combustion engines, and piston for combustion engines |
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