GB1092720A - Improvements in or relating to methods of manufacturing pistons and pistons formed thereby - Google Patents
Improvements in or relating to methods of manufacturing pistons and pistons formed therebyInfo
- Publication number
- GB1092720A GB1092720A GB3065266A GB3065266A GB1092720A GB 1092720 A GB1092720 A GB 1092720A GB 3065266 A GB3065266 A GB 3065266A GB 3065266 A GB3065266 A GB 3065266A GB 1092720 A GB1092720 A GB 1092720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groove
- piston
- ring
- head
- along
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
1,092,720. Making pistons. TRW Inc. July 7, 1966, No. 30652/66. Heading B3A. A method of making piston comprises forming a piston blank having a head, a depending skirt and a pair of opposed pin bosses in the skirt, forming an open top annular groove in the head, inserting therein a core ring shaped to the size of a desired oil gallery, upsetting the piston head to close the groove, forming a weld bond to close the groove, drilling a drainage hole from the closed groove to the interior of the skirt and removing the core material therethrough. The piston blank may be forged from a high silicon content aluminium alloy to provide a ridge 24 in which is machined a groove 29. A core ring 32, preferably of zinc or an alloy thereof and coated with a refractory material, is inserted in the groove and the ridge 24 is upset to form a flat crown 22a. A V- groove 39 is machined along the junction line formed in the crown and filled with weld material 41. Finally holes 44 are drilled and the core ring is melted and drained therethrough during heat treatment of the piston. The oil gallery 43 may be cleaned by flushing with a nitric acid solution. When using an easily forged aluminium alloy the groove 39 may be formed in the initial forging step. The groove (67) may be of triangular cross-section in which case an upstanding cylindrical projection (66) within the inner circumference of the groove is forged so as to close the groove and form the piston crown, Figs. 11, 12 (not shown). The junction line (79) extends radially outwardly and the weld material is deposited in a circumferential groove (34) in the side of the piston head. In a further embodiment, the triangular shape of the groove is modified and a back-up ring 161 is fitted into the groove with the core ring. The V-groove 162 may extend into the outer circumference of the ring 161. Alternatively the back-up ring may extend along the vertical side wall of the groove or partially along this wall and along the top of the groove, Figs. 20, 21 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3065266A GB1092720A (en) | 1966-07-07 | 1966-07-07 | Improvements in or relating to methods of manufacturing pistons and pistons formed thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3065266A GB1092720A (en) | 1966-07-07 | 1966-07-07 | Improvements in or relating to methods of manufacturing pistons and pistons formed thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1092720A true GB1092720A (en) | 1967-11-29 |
Family
ID=10311000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3065266A Expired GB1092720A (en) | 1966-07-07 | 1966-07-07 | Improvements in or relating to methods of manufacturing pistons and pistons formed thereby |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1092720A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127400A1 (en) * | 1980-07-14 | 1982-03-18 | TRW Inc., 44117 Cleveland, Ohio | "METHOD FOR PRODUCING AN ALUMINUM ALLOY PISTON WITH AN IRON REINFORCING RING" |
| WO2008003401A1 (en) * | 2006-07-07 | 2008-01-10 | Ks Kolbenschmidt Gmbh | Cooling channel piston for an internal combustion engine and method for the production thereof |
| EP1614885A3 (en) * | 2004-07-07 | 2009-08-12 | Inc. Karl Schmidt Unisia | One-piece steel piston |
| US8011288B2 (en) | 2005-09-17 | 2011-09-06 | Ks Kolbenschmidt Gmbh | Piston, especially cooling channel piston, comprising three friction-welded zones |
| US8973484B2 (en) | 2011-07-01 | 2015-03-10 | Mahle Industries Inc. | Piston with cooling gallery |
| US9856820B2 (en) | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
| DE102016226014A1 (en) | 2016-12-22 | 2018-06-28 | Federal-Mogul Nürnberg GmbH | Beam welding method and use of a salt core in a beam welding process |
| CN109396774A (en) * | 2018-12-12 | 2019-03-01 | 湖南江滨机器（集团）有限责任公司 | A kind of method for making piston and piston production line |
| US11162453B2 (en) | 2016-05-04 | 2021-11-02 | Ks Kolbenschmidt Gmbh | Piston |
-
1966
- 1966-07-07 GB GB3065266A patent/GB1092720A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127400A1 (en) * | 1980-07-14 | 1982-03-18 | TRW Inc., 44117 Cleveland, Ohio | "METHOD FOR PRODUCING AN ALUMINUM ALLOY PISTON WITH AN IRON REINFORCING RING" |
| EP1614885A3 (en) * | 2004-07-07 | 2009-08-12 | Inc. Karl Schmidt Unisia | One-piece steel piston |
| US8082839B2 (en) | 2004-07-07 | 2011-12-27 | Karl Schmidt Unisia, Inc. | One-piece steel piston |
| US8011288B2 (en) | 2005-09-17 | 2011-09-06 | Ks Kolbenschmidt Gmbh | Piston, especially cooling channel piston, comprising three friction-welded zones |
| WO2008003401A1 (en) * | 2006-07-07 | 2008-01-10 | Ks Kolbenschmidt Gmbh | Cooling channel piston for an internal combustion engine and method for the production thereof |
| US8485088B2 (en) | 2006-07-07 | 2013-07-16 | Ks Kolbenschmidt Gmbh | Cooling channel piston for an internal combustion engine and method for the production thereof |
| US9856820B2 (en) | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
| US8973484B2 (en) | 2011-07-01 | 2015-03-10 | Mahle Industries Inc. | Piston with cooling gallery |
| US11162453B2 (en) | 2016-05-04 | 2021-11-02 | Ks Kolbenschmidt Gmbh | Piston |
| DE102016226014A1 (en) | 2016-12-22 | 2018-06-28 | Federal-Mogul Nürnberg GmbH | Beam welding method and use of a salt core in a beam welding process |
| CN109396774A (en) * | 2018-12-12 | 2019-03-01 | 湖南江滨机器（集团）有限责任公司 | A kind of method for making piston and piston production line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1092720A (en) | Improvements in or relating to methods of manufacturing pistons and pistons formed thereby | |
| US3413897A (en) | Oil gallery equipped pistons and methods of making same | |
| US2668345A (en) | Shell making process | |
| US3255623A (en) | Method and apparatus for forming ball studs | |
| US4413496A (en) | Method of making flanged track tractor roller for off-highway equipment | |
| GB1266253A (en) | ||
| CN203879566U (en) | Plate end airtight hollow sodium-inflation valve | |
| US2318326A (en) | Rock drill | |
| US3341924A (en) | Method of making a forged piston with an oil gallery | |
| CN107806796B (en) | Built-in type warhead fuze cavity and loading method | |
| US4461162A (en) | Forging of conical liners | |
| JPS6089087A (en) | Method of producing bimetal electrode using for ignition plug or like | |
| US2346413A (en) | Method of manufacturing inserts for valve stems | |
| US3264717A (en) | Process for making forged light metal pistons with ring supports | |
| US2388094A (en) | Cartridge case | |
| DE1210302B (en) | Method of manufacturing pistons with a coolant space in the piston crown | |
| US2257276A (en) | Perforating gun and projectile therefor | |
| US2389517A (en) | Method of manufacturing stopper rods | |
| US2920374A (en) | Method of making projectiles | |
| JPS5743051A (en) | Manufacturing method for assembled cam shaft | |
| US2388370A (en) | Primer pocket | |
| US2115519A (en) | Method of producing ammunition shell and like cases | |
| US1412794A (en) | Method of manufacturing shells | |
| SU929277A1 (en) | Method of producing forgings with hole | |
| JPS54134066A (en) | Production of pinion for engine starter |