US3434319A - Beryllium products and method - Google Patents

Beryllium products and method Download PDF

Info

Publication number
US3434319A
US3434319A US586360A US3434319DA US3434319A US 3434319 A US3434319 A US 3434319A US 586360 A US586360 A US 586360A US 3434319D A US3434319D A US 3434319DA US 3434319 A US3434319 A US 3434319A
Authority
US
United States
Prior art keywords
beryllium
aluminum
temperature
mechanical
plating
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
US586360A
Inventor
Jean-Marie R Logerot
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.)
Pechiney SA
Original Assignee
Pechiney SA
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
Application filed by Pechiney SA filed Critical Pechiney SA
Application granted granted Critical
Publication of US3434319A publication Critical patent/US3434319A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B23K20/2333—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer one layer being aluminium, magnesium or beryllium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/002—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of light metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys

Definitions

  • Beryllium has not gained full acceptance because of its sensitivity towards notching and such after effects as loss of ductility, propagation of cracks and the like. It is also faced by the problem of inter-crystalline corrosion, high susceptibility to diffusion of other metals and gases, and toxicity of dusts released by the beryllium during processing.
  • An important concept of this invention resides in the coating of the beryllium part with at least one layer of at least one plastic metal, such as aluminum, alloys of aluminum, magnesium, zinc and antimony.
  • the beryllium can be coated with one or several layers of one or a number of the plastic metals by mechanical transformation in a temperature range which is compatible with the ductility of the beryllium and in which the inter-metallic diffusion can be controlled.
  • the desired metal coating can be achieved by such mechanical transformation as flattening, rolling, drawing, spinning and hammering, with the coating being formed at a temperature below 620" C. and preferably at a temperature within the range of 300-400 C.
  • the beryllium it is possible to plate the beryllium to provide a coating of aluminum or an alloy of aluminum or of magnesium, zinc or antimony. It is also possible to apply the coating material in a multi-layered sandwich. Aluminum is preferred as the coating metal because it does not form brittle compounds with beryllium.
  • the temperature range which can be used is much wider.
  • the lower limit is more or less dictated by the ductility of the beryllium which permits the transformation sought to be achieved. it is influenced also by the purity and the structure of the material handled such that it becomes possible to achieve transformation at room temperature.
  • the upper limit corresponds to the melting point or the temperature of irreversible transformation of the plating metal. It is also influenced by the melting point temperature of the eutectic that is formed between the base metal and the plating metal.
  • the upper limit is a temperature within the range of 600-620 C for pure aluminum, 550 aluminum, 380400 antimony.
  • the starting material will comprise a sheet of beryllium prepared from a cast ingot by hot transformation in an inert atmosphere, such as by spinning or forging, followed by transformation at a lower temperature, without surface protection, to achieve a reduction by cold working of 50l00%.
  • the first transformation breaks the coarse structure of the ingot and the second improves the surface characteristics and provides additional refining.
  • the beryllium sheet can 'be subjected to various types of mechanical or thermal processing, such as planing or sanding.
  • the laminated surface is of a rather good quality so that deep surface treatment will not be required.
  • the intermediate product is cut to the desired dimensions and is pickled in a bath of HNO +H F for removal of the layer of oxide and other surface impurities. It is then introduced into a jacket in the form of a sheet of aluminum which is folded about the product in which the aluminum sheet has previously been degreased and brushed.
  • the combination is preheated in an electric furnace having a temperature within the range of 400-600 C. and preferably about 600 C. with the heat arising from the bottom of the furnace.
  • the preheating temperature is at least equal to the transformation temperature with the differences being accounted for by the temperature of the tools and the time for handling.
  • the sandwich of beryllium and aluminum is removed from the furnace and is rapidly transferred to between heated rollers of a rolling mill.
  • the speed of rolling is 10-20 meters per minute with a reduction of 10-15% being taken with each pass followed by reheating to 600 C. for 5 minutes.
  • a reduction of at least 50% in cross-section is desired to achieve a good plating operation but a reduction as high as can be employed. Very thorough cold working can be achieved if the beryllium is first annealed but this is not essential to obtain good plating.
  • the assembly is slowly cooled, preferably while enclosed in an inorganic insulator to minimize the rate of cooling. Thereafter, the product can be cut and machined without the necessity to take other precautions except for the use of sufiicient exhaust for the removal of chips which might fall from the product. The chipping off of sharp edges occurs only to a small extent.
  • Thermal treatments may be employed to overcome the stresses introduced and to improve the plasticity of the C. for most of the alloys of C. for zinc and 580-600 C. for
  • the plated metal is heated to a temperature which varies somewhat in proportion to time such as 550 C. for 500 hours, 575 C. for 200 hours, or 600 C. for 100 hours. These treatments, which should be carefully controlled, will tend to widen or expand the beryllium-diffusion layer by a substantial amount.
  • Example 1 Two layers of 99.5% aluminum are provided on the opposite sides of a sheet of cast beryllium to provide a composite thickness of 4 mm., 80% of which is the cast beryllium sheet.
  • the composite is hardened by hammering or forging to effect a 50% reduction in cross-section after which the composite is given a first anneal at 500 C.
  • the annealed sheet is again forged to effect a reduction in thickness of 140% whereby the final thickness of the composite sheet is reduced to 1.15 mm.
  • the first anneal is intended to restore the ductility, as measured by a 40 bend on a punch having a 5 mm. radius, before proceeding with the further reduction step.
  • the processed sheet can be employed in the state resulting from the final working or it can be annealed at a temperature of about 600 C.
  • Example 2 A composite sheet is formed of two sheets of cast beryllium interleaved between three layers of aluminum to give a total thickness of 3 mm.
  • the applications will be governed by the characteristics obtained in the product, such as its mechanical, physical and chemical characteristics.
  • the physical and chemical characteristics, which are innate in the surfaces of the plated beryllium, are governed also by the assembly possibilities of such products. The following is typical of the possibilities:
  • brazing metal such as an alloy of aluminum with silicon or with zinc
  • beryllium is intended to include beryllium and alloys of beryllium.
  • the metallurgical process for the improvement of the mechanical and physical properties of beryllium products comprising mechanically plating the beryllium with at least one layer of a plastic metal selected from the group consisting of aluminum, magnesium, zinc and antimony at a temperature below 620 C. while mechanically working to effect a reduction in cross-section of at least 50%.
  • a product produced by the method of claim 1 having a core of beryllium with at least two layers of a metal selected from the group consisting of aluminum, alloys of aluminum, magnesium, zinc and antimony.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Laminated Bodies (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Forging (AREA)

Description

United States Patent 7 Int. Cl. B21c 23/24; B 21b 45/00; 1323!: 31/02 US. Cl. 72-47 14 Claims This invention relates to finished and semi-finished products of beryllium and alloys of beryllium and it is an improvement in the method for the processing of same.
A number of new applications and use have recently been found for beryllium such as for parts embodied in aircraft and space vehicles and in cryogenics such as cold generators. In such applications as in aircraft engines and space ships, use is limited to temperatures less than 500 C. and efforts are being made for improvement in the properties of the products, and particularly in their surface portions, to expand their range of use.
The following are given by way of illustration, but not by way of limitation, of some of the more important of the properties sought to be improved, namely: the two dimensional ductility of semi-finished products, espe cially when in thin cross-section; resistance to shock, such as initiated by outside particles; resistance to corrosion in various atmospheres and at extremely high temperatures; resistance to abrasion; resistance to friction between moving parts; mechanical bonding thereto as by diffusion of other materials in operation, such as brazing; bonding; and good electrical conductivity, amongst others.
Beryllium has not gained full acceptance because of its sensitivity towards notching and such after effects as loss of ductility, propagation of cracks and the like. It is also faced by the problem of inter-crystalline corrosion, high susceptibility to diffusion of other metals and gases, and toxicity of dusts released by the beryllium during processing.
It is an object of this invention to provide a process which overcomes a number of the deficiencies of beryllium and products formed thereof and it is a related object to provide beryllium and a method and means for processing same to improve upon such deficiencies as notching sensitivity, inter-crystalline corrosion, easy diffusibility of other metals and gases, and the release of toxic dusts.
An important concept of this invention resides in the coating of the beryllium part with at least one layer of at least one plastic metal, such as aluminum, alloys of aluminum, magnesium, zinc and antimony.
The beryllium can be coated with one or several layers of one or a number of the plastic metals by mechanical transformation in a temperature range which is compatible with the ductility of the beryllium and in which the inter-metallic diffusion can be controlled. By way of illustration, but not by way of limitation, the desired metal coating can be achieved by such mechanical transformation as flattening, rolling, drawing, spinning and hammering, with the coating being formed at a temperature below 620" C. and preferably at a temperature within the range of 300-400 C.
It is possible to plate the beryllium to provide a coating of aluminum or an alloy of aluminum or of magnesium, zinc or antimony. It is also possible to apply the coating material in a multi-layered sandwich. Aluminum is preferred as the coating metal because it does not form brittle compounds with beryllium.
The use of pure beryllium or alloys of beryllium which has [been cast rather than fritted and has a good ductility at a wide temperature range requires the use of a plating temperature preferably within the range of BOO-400 C.
From a practical standpoint, the temperature range which can be used is much wider. The lower limit is more or less dictated by the ductility of the beryllium which permits the transformation sought to be achieved. it is influenced also by the purity and the structure of the material handled such that it becomes possible to achieve transformation at room temperature.
The upper limit corresponds to the melting point or the temperature of irreversible transformation of the plating metal. It is also influenced by the melting point temperature of the eutectic that is formed between the base metal and the plating metal. For example, the upper limit is a temperature within the range of 600-620 C for pure aluminum, 550 aluminum, 380400 antimony.
The invention will be described with reference to the use of a commercial grade of aluminum having a purity of 99.5%. The technique will be the same for others of the plastic metals with some slight modification depending upon the particular metal, all of which are well within the skill of the art.
The starting material will comprise a sheet of beryllium prepared from a cast ingot by hot transformation in an inert atmosphere, such as by spinning or forging, followed by transformation at a lower temperature, without surface protection, to achieve a reduction by cold working of 50l00%.
The first transformation breaks the coarse structure of the ingot and the second improves the surface characteristics and provides additional refining.
While in this stage, the beryllium sheet can 'be subjected to various types of mechanical or thermal processing, such as planing or sanding. In all such instances, the laminated surface is of a rather good quality so that deep surface treatment will not be required.
The intermediate product is cut to the desired dimensions and is pickled in a bath of HNO +H F for removal of the layer of oxide and other surface impurities. It is then introduced into a jacket in the form of a sheet of aluminum which is folded about the product in which the aluminum sheet has previously been degreased and brushed.
The combination is preheated in an electric furnace having a temperature within the range of 400-600 C. and preferably about 600 C. with the heat arising from the bottom of the furnace. The preheating temperature is at least equal to the transformation temperature with the differences being accounted for by the temperature of the tools and the time for handling. After 15 minutes, the sandwich of beryllium and aluminum is removed from the furnace and is rapidly transferred to between heated rollers of a rolling mill. The speed of rolling is 10-20 meters per minute with a reduction of 10-15% being taken with each pass followed by reheating to 600 C. for 5 minutes.
A reduction of at least 50% in cross-section is desired to achieve a good plating operation but a reduction as high as can be employed. Very thorough cold working can be achieved if the beryllium is first annealed but this is not essential to obtain good plating.
After the rolling reduction, the assembly is slowly cooled, preferably while enclosed in an inorganic insulator to minimize the rate of cooling. Thereafter, the product can be cut and machined without the necessity to take other precautions except for the use of sufiicient exhaust for the removal of chips which might fall from the product. The chipping off of sharp edges occurs only to a small extent.
Thermal treatments may be employed to overcome the stresses introduced and to improve the plasticity of the C. for most of the alloys of C. for zinc and 580-600 C. for
base metal. For this purpose, the plated metal is heated to a temperature which varies somewhat in proportion to time such as 550 C. for 500 hours, 575 C. for 200 hours, or 600 C. for 100 hours. These treatments, which should be carefully controlled, will tend to widen or expand the beryllium-diffusion layer by a substantial amount.
The following examples are given by way of further illustrations, but not by Way of limitation, of the practice of this invention:
Example 1 Two layers of 99.5% aluminum are provided on the opposite sides of a sheet of cast beryllium to provide a composite thickness of 4 mm., 80% of which is the cast beryllium sheet. The composite is hardened by hammering or forging to effect a 50% reduction in cross-section after which the composite is given a first anneal at 500 C. The annealed sheet is again forged to effect a reduction in thickness of 140% whereby the final thickness of the composite sheet is reduced to 1.15 mm.
The first anneal is intended to restore the ductility, as measured by a 40 bend on a punch having a 5 mm. radius, before proceeding with the further reduction step.
Depending upon the use, the processed sheet can be employed in the state resulting from the final working or it can be annealed at a temperature of about 600 C.
Example 2 A composite sheet is formed of two sheets of cast beryllium interleaved between three layers of aluminum to give a total thickness of 3 mm.
The following table sets forth the mechanical characteristics of the composite in traction or after a rolling reduction of 50%:
Elastic Breaking Elongalimit, loa tion, kgJrnm. kgJmrn. percent Rough rolled composite 24 24v 8 1. 3 Composite annealed 48 hrs. at 600 21. 1 2.6 Composite annealed 100 hrs. at 600 Example 3 Plating of beryllium with alloys of aluminum, in accordance with the practice of this invention, makes it possible to improve a number of the properties of the composite that is formed, such as mechanical strength and corrosion resistance. Aluminum-magnesium alloys can be successfully plated on cast aluminum by making use of a preheat to about 570 C.
The applications will be governed by the characteristics obtained in the product, such as its mechanical, physical and chemical characteristics. The physical and chemical characteristics, which are innate in the surfaces of the plated beryllium, are governed also by the assembly possibilities of such products. The following is typical of the possibilities:
(a) The possibility to create shapes which are thin, as by folding or embossing the aluminum and beryllium sheets prior to the working reduction. The possibility of doing such shaping at low temperature, such as between 200-600 C., will be increased from one to three fold with a layer of plating metal present having a thickness which corresponds to 20-50% of the thickness of the beryllium.
(b) The resistance to shock and to abrasion by particles and the sensitivity due to flaws at the surfaces of the beryllium can be suppressed. For this purpose, it is desirable to make use of a rather thick layer of the plating metal but it is advantageous to use a multi-layer system. Compressor blades are typical of this type of application.
(c) Increased resistance to corrosion by water and by atmosphere is secured. The properties of certain alloys of aluminum can be conferred to the product for use in applications wherein corrosion resistance at high temperature is important such as in aircraft engines, space vehicles and nuclear reactors where the structures of this iu vention can find application, such as a reflector.
(d) There is the possibility of continuously depositing upon a metal sheet or a composite sheet, a thin layer of the brazing metal, such as an alloy of aluminum with silicon or with zinc, to make it easier to join thin strips for electrical leads at low temperature. The presence of a continuous underlying layer of a metal which is a good conductor, such as aluminum of 99% purity, is desirable to insure that the lead will separate in whole or in part.
As used herein, the term beryllium is intended to include beryllium and alloys of beryllium.
It will be understood that changes may be made in the details of construction, processes and operations, without departing from the spirit of the invention, especially as defined in the following claims.
I claim:
1. The metallurgical process for the improvement of the mechanical and physical properties of beryllium products comprising mechanically plating the beryllium with at least one layer of a plastic metal selected from the group consisting of aluminum, magnesium, zinc and antimony at a temperature below 620 C. while mechanically working to effect a reduction in cross-section of at least 50%.
2. The process as claimed in claim 1 in which the mechanical working comprises rolling.
3. The process as claimed in claim mechanical working comprises spinning.
4. The process as claimed in claim mechanical working comprises drawing.
5. The process as claimed in claim mechanical working comprises forging.
6. The process as claimed in claim 1 in which the mechanical plating is carried out while at a temperature Within the range of 300-400" C.
7. The process as claimed in claim 1 in which a reduction within the range of 5'0100% in cross-section is obtained during mechanical working.
8. The process as claimed in claim 1 in which the beryllium before plating comprises a cast ingot hot worked under a protective atmosphere and then cold worked in the absence of a protective atmosphere to eifect a reduction of 50-l00%.
9. The process as claimed in claim 8 in which the beryllium is pickled before mechanical plating.
10. The process as claimed in claim 1 in which the plating is performed on the beryllium by wrapping the beryllium in a thin foil of the plastic metal and heating to a temperature within the range of 400600 C. before mechanically working.
11. The process as claimed in claim 1 in which the beryllium is in the form of a thin sheet and in which the plating metal is in the form of a thin sheet both of which are folded to form interlayers for the mechanically working step.
12. A beryllium product having at least one layer of a plastic metal selected from the group consisting of aluminum, alloys of aluminum, magnesium, Zinc and antimony produced by the method of claim 1.
13. A product produced by the method of claim 1 having a core of beryllium with at least two layers of a metal selected from the group consisting of aluminum, alloys of aluminum, magnesium, zinc and antimony.
14. A product produced by the method of claim 11 1 in which the 1 in which the 1 in which the References Cited UNITED STATES PATENTS Davignon 29-472.3 'Mooradian 29-472.3 Pflumm et al 29-470.1 Weisse 29-195 Whitfield et al. 29-197 Feduska 29-498 6 Feduska et al 29-498 Cowan et a1. 29-197 Bruin 29-49-8 La. -Plante 29-498 5 RICHARD J. H'ERBST, Primary Examiner.
-E. M. COMBS, Assistant Examiner.
US. Cl. X.R.

Claims (1)

1. THE METALLURGICAL PROCESS FOR THE IMPROVEMENT OF THE MECHANICAL AND PHYSICAL PROPERTIES OF BERYLLIUM PRODUCTS COMPRISING MECHANICALLY PLATING THE BERYLLIUM WITH AT LEAST ONE LAYER OF A PLASTIC METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, MAGNESIUM, ZINC AND ANTIMONY AT A TEMPERATURE BELOW 620*C. WHILE MECHANICALLY WORKING TO EFFECT A REDUCTION IN CROSS-SECTION OF AT LEAST 50%.
US586360A 1965-10-14 1966-10-13 Beryllium products and method Expired - Lifetime US3434319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR34967A FR1472070A (en) 1965-10-14 1965-10-14 Improvement of beryllium products and semi-finished products

Publications (1)

Publication Number Publication Date
US3434319A true US3434319A (en) 1969-03-25

Family

ID=8590470

Family Applications (1)

Application Number Title Priority Date Filing Date
US586360A Expired - Lifetime US3434319A (en) 1965-10-14 1966-10-13 Beryllium products and method

Country Status (6)

Country Link
US (1) US3434319A (en)
CH (1) CH467871A (en)
DE (1) DE1577076A1 (en)
FR (1) FR1472070A (en)
GB (1) GB1148766A (en)
LU (1) LU52140A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411962A (en) * 1981-12-08 1983-10-25 Vought Corporation Induced or constrained superplastic laminates for forming

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474039A (en) * 1945-03-03 1949-06-21 Metals & Controls Corp Method of forming composite metal having a nickel-plated beryllium-copper base and gold or silver bonded thereto by a copper-plated iron sheet
US2608753A (en) * 1947-05-24 1952-09-02 Wilson H A Co Clad beryllium-copper alloys
US2834102A (en) * 1956-09-28 1958-05-13 Metals & Controls Corp Solid-phase bonding of metals
US2995808A (en) * 1956-03-03 1961-08-15 Weisse Ernst Composite plated alloy material
US3044156A (en) * 1954-06-23 1962-07-17 Marshall G Whitfield Temperature resistant body
US3145466A (en) * 1959-11-27 1964-08-25 Westinghouse Electric Corp Diffusion bonding of metal members
US3188732A (en) * 1960-01-14 1965-06-15 Westinghouse Electric Corp Diffusion-bonding of metal members
US3233312A (en) * 1962-08-03 1966-02-08 Du Pont Explosively bonded product
US3300852A (en) * 1964-02-18 1967-01-31 Bruin Henderikus Johannes De Method for bonding beryllium oxide to graphite
US3302280A (en) * 1964-05-15 1967-02-07 Alloys Unltd Inc Methods of bonding secondary materials to beryllium-copper

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474039A (en) * 1945-03-03 1949-06-21 Metals & Controls Corp Method of forming composite metal having a nickel-plated beryllium-copper base and gold or silver bonded thereto by a copper-plated iron sheet
US2608753A (en) * 1947-05-24 1952-09-02 Wilson H A Co Clad beryllium-copper alloys
US3044156A (en) * 1954-06-23 1962-07-17 Marshall G Whitfield Temperature resistant body
US2995808A (en) * 1956-03-03 1961-08-15 Weisse Ernst Composite plated alloy material
US2834102A (en) * 1956-09-28 1958-05-13 Metals & Controls Corp Solid-phase bonding of metals
US3145466A (en) * 1959-11-27 1964-08-25 Westinghouse Electric Corp Diffusion bonding of metal members
US3188732A (en) * 1960-01-14 1965-06-15 Westinghouse Electric Corp Diffusion-bonding of metal members
US3233312A (en) * 1962-08-03 1966-02-08 Du Pont Explosively bonded product
US3300852A (en) * 1964-02-18 1967-01-31 Bruin Henderikus Johannes De Method for bonding beryllium oxide to graphite
US3302280A (en) * 1964-05-15 1967-02-07 Alloys Unltd Inc Methods of bonding secondary materials to beryllium-copper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411962A (en) * 1981-12-08 1983-10-25 Vought Corporation Induced or constrained superplastic laminates for forming

Also Published As

Publication number Publication date
LU52140A1 (en) 1966-12-12
DE1577076A1 (en) 1970-01-02
FR1472070A (en) 1967-03-10
CH467871A (en) 1969-01-31
GB1148766A (en) 1969-04-16

Similar Documents

Publication Publication Date Title
EP0060083B1 (en) Titanium clad steel plate
US5861070A (en) Titanium-aluminum-vanadium alloys and products made using such alloys
US3912152A (en) Method for cladding a ferrous substrate with non-ferrous metals
US5067649A (en) Bonding metal components
US2366168A (en) Bonding magnesium-alloy sheets
CN113319145B (en) Preparation method of steel/magnesium laminated composite plate strip
US3194643A (en) Clad metal product
US3295197A (en) Stainless steel clad with aluminum
EP1365910B1 (en) Method of manufacturing metallic composite material
US3340597A (en) Method of bonding
CN116809629A (en) A high interface bonding strength titanium/stainless steel layered composite material and preparation method
JPS6053099B2 (en) Method of manufacturing hot-processed titanium products
WO1991003830A1 (en) Multi-element metallic composite article and method of manufacture
CN118832097B (en) A method for forging N08810 steel plate
JPS61213362A (en) Production of composite coated pipe for nuclear fuel and product
US3434319A (en) Beryllium products and method
JP3168836B2 (en) Manufacturing method of stainless steel and aluminum clad material
US3832147A (en) Composite article comprising three dissimilar metals
US4955413A (en) A alloy product containing Li, resistance to corrosion under stress, and process to obtain said product
US3481023A (en) Method of making a composite metal product
US3798747A (en) Conversion-rolling of titanium/steel bonded composite
CN112976718A (en) A 1420Al-Li/Mg-9Li/1420Al-Li composite plate and preparation method thereof
GB2162095A (en) A method of producing ti alloy plates
US3238071A (en) Process of treating explosively clad metals
US3722073A (en) Production of products directly from nickel cathodes