US3893318A - Forging apparatus - Google Patents

Forging apparatus Download PDF

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Publication number
US3893318A
US3893318A US489288A US48928874A US3893318A US 3893318 A US3893318 A US 3893318A US 489288 A US489288 A US 489288A US 48928874 A US48928874 A US 48928874A US 3893318 A US3893318 A US 3893318A
Authority
US
United States
Prior art keywords
chamber
vacuum
workpiece
forging
loading
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
Application number
US489288A
Other languages
English (en)
Inventor
Jr Robert E King
Clifford B Turner
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.)
Raytheon Technologies Corp
Original Assignee
United Aircraft Corp
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
Priority to US489288A priority Critical patent/US3893318A/en
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Priority to AR259595A priority patent/AR204144A1/es
Priority to CA224,038A priority patent/CA1026972A/fr
Priority to ZA00754035A priority patent/ZA754035B/xx
Priority to IL47602A priority patent/IL47602A/xx
Priority to CH845775A priority patent/CH599813A5/xx
Priority to AU82573/75A priority patent/AU486149B2/en
Priority to NO752356A priority patent/NO141398C/no
Publication of US3893318A publication Critical patent/US3893318A/en
Application granted granted Critical
Priority to DE19752530652 priority patent/DE2530652A1/de
Priority to IT25247/75A priority patent/IT1039752B/it
Priority to FR7521631A priority patent/FR2278420A1/fr
Priority to NLAANVRAGE7508342,A priority patent/NL175794C/xx
Priority to BE158261A priority patent/BE831326A/fr
Priority to BR7504521*A priority patent/BR7504521A/pt
Priority to GB29891/75A priority patent/GB1504008A/en
Priority to SE7508130A priority patent/SE413291B/xx
Priority to JP50087825A priority patent/JPS5848252B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction

Definitions

  • a manipulator for moving a workpiece is associated with the forging press in combination with a loading chamber having pressure locks so that a workpiece may be placed in or removed from the vacuum chamber, and one or more preheat chambers forming a part of the vacuum chamber so that the workpiece may be heated in the preheat area of the vacuum chamber and then transferred to the forging dies where the forging occurs while still in the vacuum chamber.
  • the Manipulator serves to move the workpiece from place to place in the vacuum chamber and thus the workpiece is carried from loading area to preheat chamber to forging press and then, after the forging operation, removed from the press and returned to the loading chamber.
  • FIG. 1 is a plan view of the apparatus.
  • FIG. 2 is a side elevation view of the apparatus of FIG. 1.
  • FIG. 3 is a sectional view along line 33 of FIG. 2.
  • FIG. 4 is a fragmentary vertical sectional view of the carriage for the conveyor for the workpiece clamp.
  • the apparatus includes a forging press including upper and lower dies and 12, the latter being mounted on a base 14 and the former on a plunger 16 vertically movable by a hydraulic mechanism 18.
  • the mechanism 18 is mounted on uprights 20 extending from the base.
  • the press is enclosed in a vacuum chamber 22 having side walls 24 and 26, end walls 28 and 30 and a top wall 32 through which the plunger 16 is slidable.
  • the end wall 28 has a door 34 thereon for access to the press as for replacement of the dies.
  • This general type of press is described in Moore U.S. Pat. No. 3,698,2l9.
  • the other end wall 30 has an opening 36 therein communicating with an elongated vacuum chamber 38 forming a part of the vacuum system.
  • This chamber 38 has end walls 40 and 42, the latter having an access door 44.
  • the chamber has top and bottom walls 46 and 48 and side walls 50 and 52.
  • Side vacuum chambers 54, 56, 58 and 60 are mounted on these side walls as shown.
  • Vacuum chamber 54 is a loading chamber by which workpieces may be moved in or out of the vacuum chamber system.
  • a vacuum gate 62 (FIG. 3) may close off the opening from chamber 54 into chamber 38 so that the vacuum in chamber 54 may be released without affecting the vacuum in the rest of the system.
  • This loading chamber-54 also has a door 64 at the other end for access to this chamber when the vacuum has been released.
  • a slide 66 in this chamber is movable laterally on guides 68 into the middle of the elongated vacuum chamber as shown in dot-dash lines in FIG. 3. This slide is adapted to carry a workpiece thereon from the loading chamber through gate 62 when open, into a position to be transferred within chamber 38.
  • Vacuum chambers 56, 58 and 60 are preheat furnaces and are positioned on the side walls of and open to the elongated chamber 38.
  • Each preheat furnace has a slide 70, movable on guides 72 in much the same manner as slide 66.
  • Each furnace has preheat means thereon such as a box 73 having heating coils 74 positioned in the walls in such a way as to heat the workpiece when supported on the slide in the furnace.
  • the arrangement shown has three preheat furnaces although more may be used if needed.
  • each box 73 has a vertically sliding door 76 to fully enclose the workpiece in the box during the heating operation thereon.
  • Each sliding door 76 is actuated through an air motor 78 mounted above the chamber.
  • the vacuum gate 62 is moved by an air motor 80 in the form of a cylinder and piston.
  • Slide 66 is actuated by a similar air motor 82.
  • the controls for all of these motors are external to the vacuum chamber as are the motors.
  • a guide rail 84 Positioned within the chamber 38 is a guide rail 84 on which a carriage 86 is guided.
  • the carriage 86 has rollers 88 riding on the rail and is actuated by a chain drive 89 over sprockets 90 and 91 at opposite ends of the rail.
  • the drive is from an electric motor 92 outside the chamber with'its drive shaft connected by a chain 93 to a shaft 94 extending into the chamber and carrying the sprocket 90.
  • the motor is reversible and can be driven to move the carriage to any desired position.
  • the carriage has a workpiece clamp having spaced jaws and I02pivoted on the carriage for movement toward and away from each other.
  • the jaws have links 104 thereon connected to the piston rod 106 of an air motor 108 by which the jaws are actuated.
  • This motor is powered by argon supplied through hoses 110 through the Wall of the chamber.
  • a valve 112 controls the supply of argon to the opposite ends of the cylinder.
  • the jaws have two pairs of spaced workpiece engaging elements 114 and 116.
  • the pair of jaws 114 are adapted to engage the billet or workpiece W when it is presented to the jaws by the slide 66 or by any of the slides 70.
  • the other pair of jaws 116 are wider apart and will accept and engage the finished workpiece after the forging operation between the dies. In the forging operation the relatively long cylinder (the billet) is swaged into a relatively flat disk so that the two sets of jaws are necessary.
  • the jaws 100 are pivoted on spaced pins 118 on the carriage and the jaws thus move uniformly together to carry the work engaging elements 114 into contact with an ingot as shown in FIG. I by the movement of the actuating rod 106. Release of the ingot is effected by reverse movement of the rod. As shown in FIG. 4 the rod 106 is connected through a link 120 to a rod 122 directly connected at its left end to the links 104.
  • the carriage may be moved laterally when in the forward or left-hand position shown in dot-dash lines in FIG. I.
  • the left end of the rail 84 is supported by a link 124 from the top of the chamber 38 and this link gives a measure of lateral freedom of the rail.
  • a laterally extending threaded rod 126 on the rail is connected by a rod and yoke 127 to the rail 84 and the rod is engaged by a nut not shown in a motor housing 128. Actuation of this motor will move the left end of the rail and thus move the carriage and jaws laterally.
  • the jaws may also be moved vertically to position the ingot in position or to place the jaws in a position to engage the finished workpiece.
  • the link 124 is connected to a threaded rod 130 forming part of a motor driven jack 132;Actuation of this motor will raise or lower the end of the rail and thus raise or lower the location of the jaw engaging elements.
  • the stopping and starting of the several motors may be automated.
  • the present invention contemplates the manual control of the several motors through electronically actuated valves or switches under the control of an operator who will be ableto see the location of the ingot and workpiece and the position of the jaws with respect thereto through suitable inspection windows in the walls of the chambers. Such controls are common in the machine tool art and need no further description.
  • the machine In operation, the machine is put in operation by closing the heating circuits to the furnaces in the several preheat chambers, and to a heating coil not shown surrounding the dies.
  • This heating coil is movable vertically to make possible lateral insertion and removal of the ingot and workpiece as described in Moore US. Pat. No. 3,698,219.
  • the vacuum pump for the main chamber 38 and the forging chamber 22 is started to produce the desired vacuum.
  • the vacuum door on chamber 54 is closed at this time and no vacuum exists in this chamber.
  • a suitable vacuum pump independent of the main pump 136 is provided in order to produce the desired vacuum in a short time.
  • the door 62 With equal vacuums in chamber 38 and in chamber 54 the door 62 is opened and the carriage 66 is moved out into the chamber 38 in alignment with the jaws 100 and 102 on the carriage.
  • the jaws are then moved into a position for the elements 114 to engage the ingot, FIG. 1, and the jaws are moved into ingot clamping position.
  • Carriage 70 from chamber 56 is then moved into the position shown in FIG. 3, the ingot is deposited thereon and the carriage 70 is then returned inside the furnace for heating of the ingot.
  • the present arrangement permits a sequential positioning of the ingots in the preheat chambers and a similar sequential positioning of these ingots in the forging press without removal of the ingots from the vacuum chamber. In this way, a continuous vacuum is maintained from the time the preheating begins until the forging is completed and the forged article is withdrawn from the press and positioned in the loading and unloading chamber 54.
  • Apparatus for performing a forging operation on successive workpieces in a vacuum including an elongated vacuum chamber,
  • At least one preheat chamber on one side of and communicating with said vacuum chamber
  • Apparatus for performing a forging operation on successive workpieces in a vacuum as in claim 1 includvorkpiece engaging means on said manipulator to pick up a workpiece from one of the slides and position it in the press.
  • Apparatus for performing a forging operation on successive workpieces in a vacuum as inrclaim l in which the workpiece engaging means includes movable jaws for engaging the workpiece.
  • Apparatus for performing a forging operation on successive workpieces in a vacuum as in claim 1 in which the cooperating jaws have two pairs of work engaging elements, one to engage the workpiece prior to forging and the other to engage the workpiece after forging.
  • Apparatus for performing a forging operation on successive workpieces in a vacuum as in claim 1 in which the preheat chamber incorporates heating means for heating a workpiece therein.
  • a vacuum chamber enclosing said press and having an elongated extension by which the press may be loaded and unloaded
  • a preheat chamber positioned at one side of and communicating with said elongated extension and including means for heating a workpiece in said chamber
  • a loading chamber positioned at one side of and communicating with said elongated extension
  • a loading gate at the outer end of the loading chamber through which a workpiece may be positioned in the loading chamber
  • Apparatus for performing a forging operation in a vacuum on each of a plurality of workpieces successively as in claim 6 in which the workpiece clamp has two pairs of work engaging jaws one to accommodate the workpiece before forging and the other to accommodate the workpiece after forging.
  • Apparatus for preparing a forging operation in a vacuum on each of a plurality of workpieces including means for actuating said clamp, said main slide and said loading and lateral slides externally of the chambers.
  • Apparatus for preparing a forging operation in a vacuum on each of a plurality of workpieces successively as in claim 6 including means for creating a vacuum in said loading chamber independently of the vacuum in the main chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Saccharide Compounds (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
US489288A 1974-07-17 1974-07-17 Forging apparatus Expired - Lifetime US3893318A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
US489288A US3893318A (en) 1974-07-17 1974-07-17 Forging apparatus
AR259595A AR204144A1 (es) 1974-07-17 1975-01-01 Aparato para efectuar una operacion de forjado en vacio sobre sucesivas piezas de trabajo
CA224,038A CA1026972A (fr) 1974-07-17 1975-04-08 Machine a forger
ZA00754035A ZA754035B (en) 1974-07-17 1975-06-24 Forging apparatus
IL47602A IL47602A (en) 1974-07-17 1975-06-30 Equipment for vacuum forging including one or more preheatchambers
CH845775A CH599813A5 (fr) 1974-07-17 1975-06-30
AU82573/75A AU486149B2 (en) 1974-07-17 1975-06-30 Forging apparatus
NO752356A NO141398C (no) 1974-07-17 1975-06-30 Smieapparat.
DE19752530652 DE2530652A1 (de) 1974-07-17 1975-07-09 Schmiedemaschine
FR7521631A FR2278420A1 (fr) 1974-07-17 1975-07-10 Appareil pour avancer successivement des pieces a forger dans le vide vers une presse a forger
IT25247/75A IT1039752B (it) 1974-07-17 1975-07-10 Apparecchio per la fucinatura sotto vudto
NLAANVRAGE7508342,A NL175794C (nl) 1974-07-17 1975-07-11 Inrichting voor het uitvoeren van een smeedbewerking op opeenvolgende werkstukken in vacuuem.
BE158261A BE831326A (fr) 1974-07-17 1975-07-14 Appareil pour forger
BR7504521*A BR7504521A (pt) 1974-07-17 1975-07-16 Aperfeicoamento em aparelho para executar uma operacao de forjamento em pecas sucessivas em um vacuo
GB29891/75A GB1504008A (en) 1974-07-17 1975-07-16 Apparatus for performing a forging operation
SE7508130A SE413291B (sv) 1974-07-17 1975-07-16 Anleggning for smidning av arbetsstycken
JP50087825A JPS5848252B2 (ja) 1974-07-17 1975-07-17 タンゾウソウチ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489288A US3893318A (en) 1974-07-17 1974-07-17 Forging apparatus

Publications (1)

Publication Number Publication Date
US3893318A true US3893318A (en) 1975-07-08

Family

ID=23943206

Family Applications (1)

Application Number Title Priority Date Filing Date
US489288A Expired - Lifetime US3893318A (en) 1974-07-17 1974-07-17 Forging apparatus

Country Status (16)

Country Link
US (1) US3893318A (fr)
JP (1) JPS5848252B2 (fr)
AR (1) AR204144A1 (fr)
BE (1) BE831326A (fr)
BR (1) BR7504521A (fr)
CA (1) CA1026972A (fr)
CH (1) CH599813A5 (fr)
DE (1) DE2530652A1 (fr)
FR (1) FR2278420A1 (fr)
GB (1) GB1504008A (fr)
IL (1) IL47602A (fr)
IT (1) IT1039752B (fr)
NL (1) NL175794C (fr)
NO (1) NO141398C (fr)
SE (1) SE413291B (fr)
ZA (1) ZA754035B (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152914A (en) * 1977-04-05 1979-05-08 Minsky Radiotekhnichesky Institut Apparatus for production of metal ribbon
US4906809A (en) * 1986-06-27 1990-03-06 John Workman Metal slitting and stamping
US4928507A (en) * 1984-09-01 1990-05-29 Kocks Technik Gmbh & Co. Methods and apparatus for manufacturing seamless tube
US6214220B1 (en) 1999-11-30 2001-04-10 Engineering Specialties, Inc. Combined process vessel apparatus
US6238569B1 (en) 1999-06-22 2001-05-29 Engineering Specialties, Inc. Flotation pile oil/water separator apparatus
US6715661B2 (en) * 2001-02-01 2004-04-06 Snecma Moteurs Installation for shaping a part and application to hot forming
US20040188882A1 (en) * 2003-03-28 2004-09-30 Fujikura Rubber Ltd. Method and apparatus for forming a hollow FRP article by internal pressure molding
CN103447434A (zh) * 2013-09-06 2013-12-18 天津市天锻压力机有限公司 重型等温锻造液压机
WO2015167407A1 (fr) 2014-05-02 2015-11-05 Ertong Lutfi Matrices de forgeage avec système de chauffage interne
CN107584061A (zh) * 2017-08-09 2018-01-16 玉环鑫龙数控机床厂 一种全自动多工位冷锻机
CN110014107A (zh) * 2019-04-22 2019-07-16 杭州圣檀服饰有限公司 一种金属成型模具
CN110732625A (zh) * 2019-11-15 2020-01-31 徐州九鼎锻造科技有限公司 一种具有夹持功能的钢材锻造用锻造炉
CN114799019A (zh) * 2022-04-01 2022-07-29 张�杰 一种自动化卧式锻造设备
CN116493536A (zh) * 2023-06-30 2023-07-28 苏州铂源航天航空新材料有限公司 一种航空钛合金件铸造装置
WO2023151855A1 (fr) * 2022-02-11 2023-08-17 Sms Group Gmbh Système de forgeage isotherme

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9209546U1 (fr) * 1992-07-16 1992-09-24 Hartkopf & Heiliger Gesenkschmiede Gmbh, 5650 Solingen, De
JP3012732U (ja) * 1994-12-20 1995-06-27 茂郎 槇島 痔治療の薬剤保持部材
DE102014226384B4 (de) * 2014-12-18 2017-03-30 Sms Group Gmbh Ladesystem und Ladeverfahren für Schmiedemaschinen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449365A (en) * 1945-12-14 1948-09-14 Hydraulic Dev Corp Inc Apparatus for forging
US2944500A (en) * 1954-10-22 1960-07-12 Rohr Aircraft Corp Machine for forming sheet metal
US3069535A (en) * 1959-05-14 1962-12-18 American Brake Shoe Co Method and apparatus for forging
US3350906A (en) * 1964-10-26 1967-11-07 Intercontinental Mfg Company I Forming apparatus and methods
US3633649A (en) * 1969-11-24 1972-01-11 Outokumpu Oy Decarburization of ferrous material under low pressure at elevated temperature
US3698219A (en) * 1971-05-10 1972-10-17 United Aircraft Corp Apparatus for forging
US3720805A (en) * 1968-12-26 1973-03-13 Johnson Matthey & Mallory Ltd Apparatus for the manufacture of composite electrical contacts
US3831425A (en) * 1973-05-01 1974-08-27 Komatsu Mfg Co Ltd Fully automatic forging press

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449365A (en) * 1945-12-14 1948-09-14 Hydraulic Dev Corp Inc Apparatus for forging
US2944500A (en) * 1954-10-22 1960-07-12 Rohr Aircraft Corp Machine for forming sheet metal
US3069535A (en) * 1959-05-14 1962-12-18 American Brake Shoe Co Method and apparatus for forging
US3350906A (en) * 1964-10-26 1967-11-07 Intercontinental Mfg Company I Forming apparatus and methods
US3720805A (en) * 1968-12-26 1973-03-13 Johnson Matthey & Mallory Ltd Apparatus for the manufacture of composite electrical contacts
US3633649A (en) * 1969-11-24 1972-01-11 Outokumpu Oy Decarburization of ferrous material under low pressure at elevated temperature
US3698219A (en) * 1971-05-10 1972-10-17 United Aircraft Corp Apparatus for forging
US3831425A (en) * 1973-05-01 1974-08-27 Komatsu Mfg Co Ltd Fully automatic forging press

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152914A (en) * 1977-04-05 1979-05-08 Minsky Radiotekhnichesky Institut Apparatus for production of metal ribbon
US4928507A (en) * 1984-09-01 1990-05-29 Kocks Technik Gmbh & Co. Methods and apparatus for manufacturing seamless tube
US4906809A (en) * 1986-06-27 1990-03-06 John Workman Metal slitting and stamping
US6238569B1 (en) 1999-06-22 2001-05-29 Engineering Specialties, Inc. Flotation pile oil/water separator apparatus
US6214220B1 (en) 1999-11-30 2001-04-10 Engineering Specialties, Inc. Combined process vessel apparatus
US6715661B2 (en) * 2001-02-01 2004-04-06 Snecma Moteurs Installation for shaping a part and application to hot forming
US20040188882A1 (en) * 2003-03-28 2004-09-30 Fujikura Rubber Ltd. Method and apparatus for forming a hollow FRP article by internal pressure molding
US7674418B2 (en) * 2003-03-28 2010-03-09 Fujikura Rubber Ltd. Method and apparatus for forming a hollow FRP article by internal pressure molding
US20100116438A1 (en) * 2003-03-28 2010-05-13 Fujikura Rubber Ltd. Method and apparatus for forming a hollow frp article by internal pressure molding
US8215945B2 (en) 2003-03-28 2012-07-10 Fujikura Rubber Ltd. Method and apparatus for forming a hollow FRP article by internal pressure molding
CN103447434B (zh) * 2013-09-06 2016-04-06 天津市天锻压力机有限公司 重型等温锻造液压机
CN103447434A (zh) * 2013-09-06 2013-12-18 天津市天锻压力机有限公司 重型等温锻造液压机
WO2015167407A1 (fr) 2014-05-02 2015-11-05 Ertong Lutfi Matrices de forgeage avec système de chauffage interne
US10124395B2 (en) 2014-05-02 2018-11-13 Lutfi ERTONG Forging dies with internal heating system
CN107584061A (zh) * 2017-08-09 2018-01-16 玉环鑫龙数控机床厂 一种全自动多工位冷锻机
CN107584061B (zh) * 2017-08-09 2023-11-28 玉环鑫龙数控机床厂 一种全自动多工位冷锻机
CN110014107B (zh) * 2019-04-22 2020-08-11 安徽正荣电器有限公司 一种金属成型模具
CN110014107A (zh) * 2019-04-22 2019-07-16 杭州圣檀服饰有限公司 一种金属成型模具
CN110732625A (zh) * 2019-11-15 2020-01-31 徐州九鼎锻造科技有限公司 一种具有夹持功能的钢材锻造用锻造炉
CN110732625B (zh) * 2019-11-15 2021-07-27 徐州九鼎锻造科技有限公司 一种具有夹持功能的钢材锻造用锻造炉
WO2023151855A1 (fr) * 2022-02-11 2023-08-17 Sms Group Gmbh Système de forgeage isotherme
CN114799019A (zh) * 2022-04-01 2022-07-29 张�杰 一种自动化卧式锻造设备
CN114799019B (zh) * 2022-04-01 2023-12-29 冠县中圆轴承有限公司 一种自动化卧式锻造设备
CN116493536A (zh) * 2023-06-30 2023-07-28 苏州铂源航天航空新材料有限公司 一种航空钛合金件铸造装置
CN116493536B (zh) * 2023-06-30 2023-09-15 苏州铂源航天航空新材料有限公司 一种航空钛合金件锻造装置

Also Published As

Publication number Publication date
NO141398C (no) 1980-03-05
AR204144A1 (es) 1975-11-20
GB1504008A (en) 1978-03-15
ZA754035B (en) 1976-05-26
FR2278420B1 (fr) 1979-05-11
FR2278420A1 (fr) 1976-02-13
NL175794B (nl) 1984-08-01
SE413291B (sv) 1980-05-19
DE2530652C2 (fr) 1987-08-06
SE7508130L (sv) 1976-01-19
IT1039752B (it) 1979-12-10
IL47602A0 (en) 1975-12-31
NO752356L (fr) 1976-01-20
NL175794C (nl) 1985-01-02
AU8257375A (en) 1977-01-06
JPS5134845A (fr) 1976-03-24
JPS5848252B2 (ja) 1983-10-27
NO141398B (no) 1979-11-26
DE2530652A1 (de) 1976-01-29
CA1026972A (fr) 1978-02-28
BE831326A (fr) 1975-11-03
CH599813A5 (fr) 1978-05-31
NL7508342A (nl) 1976-01-20
BR7504521A (pt) 1976-07-06
IL47602A (en) 1979-03-12

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