US3286337A - Processes for shaping metals under high hydrostatic pressure - Google Patents
Processes for shaping metals under high hydrostatic pressure Download PDFInfo
- Publication number
- US3286337A US3286337A US388501A US38850164A US3286337A US 3286337 A US3286337 A US 3286337A US 388501 A US388501 A US 388501A US 38850164 A US38850164 A US 38850164A US 3286337 A US3286337 A US 3286337A
- Authority
- US
- United States
- Prior art keywords
- metal
- ductile metal
- zone
- ductile
- pressure
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 92
- 239000002184 metal Substances 0.000 title claims description 92
- 238000000034 method Methods 0.000 title claims description 27
- 150000002739 metals Chemical class 0.000 title claims description 21
- 238000007493 shaping process Methods 0.000 title claims description 18
- 238000009931 pascalization Methods 0.000 title claims description 9
- 238000005242 forging Methods 0.000 description 11
- 230000002706 hydrostatic effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229910052790 beryllium Inorganic materials 0.000 description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/22—Making metal-coated products; Making products from two or more metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/007—Hydrostatic extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
- B21C33/004—Composite billet
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/711—Hydrostatic extrusion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4981—Utilizing transitory attached element or associated separate material
Definitions
- the conventional processes for the plastic deformation of metals by forging generally have as their object the shaping of such metals with a view to using them directly in the shape obtained or to permit the subsequent transformation thereof.
- the deformation of a metal may be effected by applying a predetermined pressure on a surface element of the metal, this being done furthermore in a manner which is absolutely independent of the ambient hydrostatic pressure, since it will be remembered that the plastic deformation is effected without change in volume and density.
- the invention consists mainlywhile simultaneously effecting the shaping under the hydrostatic pressure which is much higher than that necessary for effecting the deformation and which may reach as much as 12,000 barsin combining successive deformations, which are defined and limited in respect of their amplitude but are uniform in respect of the metal mass as a whole, and which are effected within a predetermined range, and also (where appropriate) annealing effected within predetermined cycles and for a predetermined period of time.
- the invention consists furthermore, apart from this main arrangement, of certain other arrangements which are preferably utilized simultaneously and which may be considered either separately or in combination one with another, notably:
- the metal to be deformed is disposed in a jacket made of a metal which is relatively less ductile at the temperature under consideration, and the shape and thickness of which are such that they oppose the proposed deformation,
- the deformation is effected by forging
- the deformation is effected by rolling
- the deformation is effected by drawing
- the said deformation is effected in an envelope in which a high pressure obtains due to the influence of artificial means such as high-pressure gas, a non-compressible liquid or a second metal which has been rendered plastic by the application of the pressure supplied by the first metal to be deformed, the said liquid or second metal or (if appropriate) gas being able to flow only through a small calibrated orifice and being, if appropriate, adjustable in such manner that it becomes possible to obtain a predetermined hydrostatic pressure rate during the operations,
- artificial means such as high-pressure gas, a non-compressible liquid or a second metal which has been rendered plastic by the application of the pressure supplied by the first metal to be deformed, the said liquid or second metal or (if appropriate) gas being able to flow only through a small calibrated orifice and being, if appropriate, adjustable in such manner that it becomes possible to obtain a predetermined hydrostatic pressure rate during the operations,
- the said metal to be deformed is beryllium
- the said second metal is lead
- the said second metal is aluminium
- the said second metal is copper
- the said second metal is Armco iron.
- FIGURES 1 and 2 are diagrammatic views showing a shaping operation effected by forging in a jacket made of less ductile metals.
- FIGURES 3, 4, 5 and 6 are diagrammatic views showing shaping by rolling in a jacket made of less ductile metals
- FIGURES 7, 8, and 9 are diagrammatic views showing shaping by drawing in a jacket of less ductile metals.
- FIGURE 10 is a diagrammatic view of shaping by forging in a high-pressure gas or non-compressible liquid
- FIGURE 11 is a diagrammatic view showing shaping by drawing in a high-pressure gas or a non-compressible liquid.
- FIGURE 12 is a diagrammatic view showing shaping by drawing in the presence of a second plastic metal.
- FIGURES 13 and 14 are diagrammatic views showing shaping by forging in the presence of a second plastic metal.
- FIGURES 1 and 2 show the jacketing of the metal 1 to be deformed with the aid of a metal 2 which is relatively less ductile at the temperature under consideration but is disposed in an envelope the shape and thickness of which are such that the proposed deformation is opposed, thus producing a high hydrostatic pressure in the interior.
- This method is illustrated by FIGURES 1 and 2 which show the two upsetting states of a small metal cylinder 1 within a metal 2 which is less ductile.
- FIGURES 3, 4, 5, and 6 show, respectively, operations involving the rolling'of a metal 1 within a metal 2 which 4 is less ductile, with regard to plates (FIGS. 3 and 4) with two rolling rolls and with regard to bars (FIGS. 5 and 6) with four rolling rolls.
- FIG. 7 shows an operation involving the drawing of a metal 1 within a less ductile metal 2, this metal then being suitable for application to products of any desired section, the section of the less ductile material being, optionally, circular or of any other desired shape (FIGS. 8 and 9).
- the metal 7 thus exerts a counter-pressure which may be varied by acting on the ratio So/Sl between the minimum values 5, 6 and maximum values 50, 60 or even 100.
- the said metal 7 may be for example lead for temperatures below C., aluminium for temperatures between and 400 C., copper above this level or alternatively Anmco iron (an extremely pure grade of iron) for rapid forging operations.
- a process for shaping difficult to deform ductile metals under high hydrostatic pressure comprising: confining a first ductile metal to be shaped in a first zone in a rigid container; confining a second ductile metal in a second zone in said rigid container in force-transmitting engagement with said first ductile metal; said second zone being configured to conform to the desired final shape of said first ductile metal, applying a pressure to said first ductile metal sufficiently high to force said first ductile metal to flow out of said first zone and into said second zone and to simultaneously force said second ductile metal to flow out of said second zone through at least one outlet orifice of predetermined size communicating with said second zone, said outlet orifice being of such a size as to require the application of a predetermined pressure to said second ductile metal by said first ductile metal to force said second ductile metal to flow therethrough.
- said pressure applied to said first ductile metal is a substantially uniform pressure which is higher than a pressure necesa metal ofiers a substantially uniform resistance to the flow of said first ductile metal during the entire time said first ductile metal is being forced to flow from said first into said second zone.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR945150A FR1376606A (fr) | 1963-08-20 | 1963-08-20 | Perfectionnements aux procédés de mise en forme des métaux sous pression hydrostatique élevée |
Publications (1)
Publication Number | Publication Date |
---|---|
US3286337A true US3286337A (en) | 1966-11-22 |
Family
ID=8810827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US388501A Expired - Lifetime US3286337A (en) | 1963-08-20 | 1964-08-10 | Processes for shaping metals under high hydrostatic pressure |
Country Status (8)
Country | Link |
---|---|
US (1) | US3286337A (xx) |
BE (1) | BE651665A (xx) |
ES (1) | ES303279A1 (xx) |
FR (1) | FR1376606A (xx) |
GB (1) | GB1081896A (xx) |
IL (1) | IL21843A (xx) |
LU (1) | LU46696A1 (xx) |
NL (1) | NL6409614A (xx) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3481013A (en) * | 1967-01-09 | 1969-12-02 | Walter Dannohl | Method of making metal foils |
US3654687A (en) * | 1967-09-27 | 1972-04-11 | Asea Ab | Hydrostatic extrusion of compound material |
US3673667A (en) * | 1970-11-23 | 1972-07-04 | Whittaker Corp | Method for producing complex shapes by filled billet extrusion |
US3782159A (en) * | 1971-06-17 | 1974-01-01 | Peugeot & Renault | Isostatic working process |
US3798742A (en) * | 1973-01-24 | 1974-03-26 | Crucible Inc | Method for hot working |
US4037305A (en) * | 1975-09-24 | 1977-07-26 | Allmanna Svenska Elektriska Aktiebolaget | Method for hydrostatic extrusion |
US4117367A (en) * | 1974-05-13 | 1978-09-26 | U.S. Philips Corporation | High-pressure discharge lamp |
US4161111A (en) * | 1971-06-24 | 1979-07-17 | Minnesota Mining And Manufacturing Company | Hydrostatically extruded thermoelectric legs |
US5121535A (en) * | 1988-12-14 | 1992-06-16 | Sulzer Bros. Ltd. | Method for production of thin sections of reactive metals |
US5127146A (en) * | 1988-12-14 | 1992-07-07 | Sulzer Brothers, Ltd. | Method for production of thin sections of reactive metals |
US5809778A (en) * | 1995-06-16 | 1998-09-22 | J. Eberspacher Gmbh & Co. | Exhaust manifold with sheet metal inlet pipes |
US5903813A (en) * | 1998-07-24 | 1999-05-11 | Advanced Materials Products, Inc. | Method of forming thin dense metal sections from reactive alloy powders |
US20090288466A1 (en) * | 2008-05-21 | 2009-11-26 | The Hong Kong Polytechnic University | Isothermal forming system for production of sheet metal parts |
WO2012076933A1 (pt) | 2010-12-09 | 2012-06-14 | Universidade De Aveiro | Pastas celulósicas modificadas, método de preparação por processamento por alta pressão e respectivas aplicações |
CN109013993A (zh) * | 2018-08-17 | 2018-12-18 | 北京科技大学 | 一种快锻制圆-楔横轧精确成形铁道车辆车轴的方法 |
CN117358863A (zh) * | 2023-12-08 | 2024-01-09 | 成都先进金属材料产业技术研究院股份有限公司 | 一种防止高温合金在锤上自由锻造过程中产生裂纹的方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3631706A (en) * | 1969-02-25 | 1972-01-04 | Western Electric Co | Methods of and apparatus for forming an article having a tubular portion |
EP0310033B1 (en) * | 1987-09-28 | 1995-04-19 | Hitachi, Ltd. | Superconducting wire and method of producing the same |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1685915A (en) * | 1926-05-25 | 1928-10-02 | Westinghouse Lamp Co | Fabrication of metallic thorium |
US1891234A (en) * | 1929-11-06 | 1932-12-20 | Us Pipe & Foundry Company | Method of modifying internal strains in metal objects |
US2653494A (en) * | 1946-12-24 | 1953-09-29 | Edward C Creutz | Method of forging metals |
US2770874A (en) * | 1953-04-27 | 1956-11-20 | Cleveland Pneumatic Tool Co | Method of locally expanding tubing |
GB848269A (en) * | 1958-03-25 | 1960-09-14 | Atomic Energy Authority Uk | Improvements in or relating to the forming of beryllium |
US2993269A (en) * | 1958-12-15 | 1961-07-25 | Gen Electric | Methods for producing titanium-clad metal |
FR1305289A (fr) * | 1961-11-20 | 1962-09-28 | Ti Group Services Ltd | Procédé de fabrication de tubes en béryllium |
US3122828A (en) * | 1963-01-14 | 1964-03-03 | Special Metals Inc | Conversion of heat-sensitive alloys with aid of a thermal barrier |
US3127671A (en) * | 1961-06-27 | 1964-04-07 | Ladish Co | Art of forging brittle metals |
US3156974A (en) * | 1961-02-10 | 1964-11-17 | Engelhard Ind Inc | Method for improving properties of articles |
-
1963
- 1963-08-20 FR FR945150A patent/FR1376606A/fr not_active Expired
-
1964
- 1964-08-04 IL IL21843A patent/IL21843A/xx unknown
- 1964-08-05 LU LU46696D patent/LU46696A1/xx unknown
- 1964-08-10 US US388501A patent/US3286337A/en not_active Expired - Lifetime
- 1964-08-11 BE BE651665A patent/BE651665A/xx unknown
- 1964-08-19 ES ES0303279A patent/ES303279A1/es not_active Expired
- 1964-08-20 NL NL6409614A patent/NL6409614A/xx unknown
- 1964-08-20 GB GB31844/64A patent/GB1081896A/en not_active Expired
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1685915A (en) * | 1926-05-25 | 1928-10-02 | Westinghouse Lamp Co | Fabrication of metallic thorium |
US1891234A (en) * | 1929-11-06 | 1932-12-20 | Us Pipe & Foundry Company | Method of modifying internal strains in metal objects |
US2653494A (en) * | 1946-12-24 | 1953-09-29 | Edward C Creutz | Method of forging metals |
US2770874A (en) * | 1953-04-27 | 1956-11-20 | Cleveland Pneumatic Tool Co | Method of locally expanding tubing |
GB848269A (en) * | 1958-03-25 | 1960-09-14 | Atomic Energy Authority Uk | Improvements in or relating to the forming of beryllium |
US2993269A (en) * | 1958-12-15 | 1961-07-25 | Gen Electric | Methods for producing titanium-clad metal |
US3156974A (en) * | 1961-02-10 | 1964-11-17 | Engelhard Ind Inc | Method for improving properties of articles |
US3127671A (en) * | 1961-06-27 | 1964-04-07 | Ladish Co | Art of forging brittle metals |
FR1305289A (fr) * | 1961-11-20 | 1962-09-28 | Ti Group Services Ltd | Procédé de fabrication de tubes en béryllium |
US3122828A (en) * | 1963-01-14 | 1964-03-03 | Special Metals Inc | Conversion of heat-sensitive alloys with aid of a thermal barrier |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3481013A (en) * | 1967-01-09 | 1969-12-02 | Walter Dannohl | Method of making metal foils |
US3654687A (en) * | 1967-09-27 | 1972-04-11 | Asea Ab | Hydrostatic extrusion of compound material |
US3673667A (en) * | 1970-11-23 | 1972-07-04 | Whittaker Corp | Method for producing complex shapes by filled billet extrusion |
US3782159A (en) * | 1971-06-17 | 1974-01-01 | Peugeot & Renault | Isostatic working process |
US4161111A (en) * | 1971-06-24 | 1979-07-17 | Minnesota Mining And Manufacturing Company | Hydrostatically extruded thermoelectric legs |
US3798742A (en) * | 1973-01-24 | 1974-03-26 | Crucible Inc | Method for hot working |
US4117367A (en) * | 1974-05-13 | 1978-09-26 | U.S. Philips Corporation | High-pressure discharge lamp |
US4037305A (en) * | 1975-09-24 | 1977-07-26 | Allmanna Svenska Elektriska Aktiebolaget | Method for hydrostatic extrusion |
US5121535A (en) * | 1988-12-14 | 1992-06-16 | Sulzer Bros. Ltd. | Method for production of thin sections of reactive metals |
US5127146A (en) * | 1988-12-14 | 1992-07-07 | Sulzer Brothers, Ltd. | Method for production of thin sections of reactive metals |
US5809778A (en) * | 1995-06-16 | 1998-09-22 | J. Eberspacher Gmbh & Co. | Exhaust manifold with sheet metal inlet pipes |
US5903813A (en) * | 1998-07-24 | 1999-05-11 | Advanced Materials Products, Inc. | Method of forming thin dense metal sections from reactive alloy powders |
US20090288466A1 (en) * | 2008-05-21 | 2009-11-26 | The Hong Kong Polytechnic University | Isothermal forming system for production of sheet metal parts |
US8596106B2 (en) * | 2008-05-21 | 2013-12-03 | The Hong Kong Polytechnic University | Isothermal forming system for production of sheet metal parts |
WO2012076933A1 (pt) | 2010-12-09 | 2012-06-14 | Universidade De Aveiro | Pastas celulósicas modificadas, método de preparação por processamento por alta pressão e respectivas aplicações |
CN109013993A (zh) * | 2018-08-17 | 2018-12-18 | 北京科技大学 | 一种快锻制圆-楔横轧精确成形铁道车辆车轴的方法 |
CN117358863A (zh) * | 2023-12-08 | 2024-01-09 | 成都先进金属材料产业技术研究院股份有限公司 | 一种防止高温合金在锤上自由锻造过程中产生裂纹的方法 |
CN117358863B (zh) * | 2023-12-08 | 2024-03-08 | 成都先进金属材料产业技术研究院股份有限公司 | 一种防止高温合金在锤上自由锻造过程中产生裂纹的方法 |
Also Published As
Publication number | Publication date |
---|---|
IL21843A (en) | 1968-03-28 |
BE651665A (xx) | 1964-12-01 |
NL6409614A (xx) | 1965-02-22 |
ES303279A1 (es) | 1964-11-01 |
GB1081896A (en) | 1967-09-06 |
FR1376606A (fr) | 1964-10-31 |
LU46696A1 (xx) | 1964-10-05 |
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