EP0364430A1 - Billet for the production of composite materials - Google Patents
Billet for the production of composite materials Download PDFInfo
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- EP0364430A1 EP0364430A1 EP89890232A EP89890232A EP0364430A1 EP 0364430 A1 EP0364430 A1 EP 0364430A1 EP 89890232 A EP89890232 A EP 89890232A EP 89890232 A EP89890232 A EP 89890232A EP 0364430 A1 EP0364430 A1 EP 0364430A1
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- European Patent Office
- Prior art keywords
- outer part
- closure
- temperature
- parts
- production
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 10
- 239000007858 starting material Substances 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000001513 hot isostatic pressing Methods 0.000 claims description 2
- 238000012966 insertion method Methods 0.000 claims description 2
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract 4
- 239000002775 capsule Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
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- 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
- Y10T29/49826—Assembling or joining
-
- 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
- Y10T29/49826—Assembling or joining
- Y10T29/49879—Spaced wall tube or receptacle
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
Definitions
- the invention relates to a starting material for the production of composite parts by hot forming or by hot isostatic pressing, consisting of a tubular outer part, which optionally forms a component of the composite part after the forming, and at least one core or inner part made of solid and / or powdery material exists, which forms the further component (s) in the finished product, and two closure parts arranged on the end face of the tubular outer part, which optionally have a gas connection, and a method for producing the primary material.
- Composite materials are advantageously used for machine parts and tools, to which different requirements such as chemical resistance and hardness or strength or wear resistance and toughness are made at the same time.
- Such composite materials can be created by fusion welding plating and the like, or by a metallic connection of two or more parts by hot forming.
- Composites with an inner component and an outer component that surrounds it, in particular largely concentrically arranged, can be advantageously and inexpensively produced from primary material, in which the outer part simultaneously serves as a capsule shell, with only capsule bottoms or closure parts being welded on the end face to the outer part.
- the disadvantage here is that if the outer part consists of a material that is difficult to weld or can only be welded with appropriate preheating, such as Cold work steels (e.g.
- additional measures such as the application of so-called buffer welding systems with intermediate annealing of the entire outer part and cleaning or descaling, especially in the heat-affected zone, are required before the closure parts can be welded gas-tight and the weld seam even during heating of the primary material to processing temperature remains crack-free and does not induce any cracks in the base material.
- Such additional measures are very complex and usually do not provide sufficient production security. For this reason, and because some special materials may not be able to be connected to the closure parts by fusion welding if the requirements are met, it is often necessary to produce primary material by welding the parts to be connected into a lost capsule made of weldable material.
- the invention is based on the object of avoiding the above disadvantages and of creating in a simple manner a starting material for the production of composite material parts and a method for producing the starting material.
- the invention consists in that closure parts at least partially in a tubular, preferably in the closure area with step-shaped wall cross-section protrude, whereby on the mating surfaces, which are made with a roughness or roughness RA of at most 200 microns, preferably at most 10 microns, in particular 4 microns, there is a surface pressure and the closure parts, optionally outside, holding devices, such as Pins, blind holes, and the like.
- the closure parts are formed from a material that is at least one of the same, in particular one has a higher coefficient of thermal expansion, preferably higher thermoforming capacity, with essentially the same resistance to deformation at the processing temperature of the primary material and a softening temperature exceeding this temperature by at least 90 ° C. and, if appropriate, the residual cavities in the primary material are filled with inert gas or evacuated.
- the closure parts consist of an austenitic alloy, in particular of a chromium-nickel steel or of a manganese steel or of a nickel-manganese steel.
- the process for the production of the primary material consists essentially in the fact that in a tubular outer part, which may optionally be heated beforehand, a closure part which is at a temperature lower than at least 50 ° C., preferably 100 ° C., in particular 150 ° C. the outer part has been brought, inserted and held until the temperature is equalized, after which one or more inner parts (s), optionally compressed in powder form by methods known per se, are (are) introduced into the outer part which is closed and a second closure part after the same insertion method is fixed in the outer part, if necessary by means of a gas connection, inert gas is introduced into the residual cavities in the primary material or these are evacuated, after which the gas connection is closed. It is advantageous if the outer part is at room temperature left and an adjustment of the temperature difference is carried out by cooling the closure parts in a cooling medium, for example liquid air or liquid nitrogen.
- a cooling medium for example liquid air or liquid nitrogen.
- a fixed inner part (2) is introduced into an outer part (1), in which the closure parts (3) partially protrude at the end.
- the fitting surfaces (4) are formed by a stepped wall cross section of the outer part and cooperate with those of the closure parts.
- the closure parts (3) have mounting devices (7), one closure part has a gas connection (5).
- One of the remaining cavities (6) in the primary material is formed between the outer part (1) and the inner part (2).
- a starting material for the production of a three-component composite part is shown, being between a fixed core part (2), which is held in positioning points (10) by closure parts (3) and an outer part (1), in which the Closure parts (3) protrude, a powdery intermediate part (9) is arranged.
- the closure part (3) which carries a gas connection (5), has a mounting device designed as a blind hole.
Abstract
Description
Die Erfindung betrifft ein Vormaterial für die Herstellung von Verbundwerkstoffteilen durch Warmumformung oder durch heißisostatisches Pressen, bestehend aus einem rohrförmigen Außenteil, der gegebenenfalls nach der Umformung, eine Komponente des Verbundteiles bildet, und mindestens einem Kern oder Innenteil, der aus festem und/oder pulverförmigem Material besteht, welcher im Fertigprodukt die weitere(n) Komponente(n) bildet, und zwei am rohrförmigen Außenteil stirnseitig angeordnete Verschlußteile, die gegebenenfalls einen Gasanschluß aufweisen sowie ein Verfahren zur Herstellung des Vormaterials.The invention relates to a starting material for the production of composite parts by hot forming or by hot isostatic pressing, consisting of a tubular outer part, which optionally forms a component of the composite part after the forming, and at least one core or inner part made of solid and / or powdery material exists, which forms the further component (s) in the finished product, and two closure parts arranged on the end face of the tubular outer part, which optionally have a gas connection, and a method for producing the primary material.
Verbundwerkstoffe werden vorteilhaft für Maschinenteile und Werkzeuge eingesetzt, an welche gleichzeitig unterschiedliche Anforderungen , wie beispielsweise chemische Beständigkeit und Härte bzw. Festigkeit oder Verschleißfestigkeit und Zähigkeit, gestellt werden. Eine Schaffung solcher Verbundwerkstoffe kann durch Schmelzschweißplattieren und dgl. oder durch eine metallische Verbindung von zwei oder mehreren Teilen durch Warmumformung erfolgen.Composite materials are advantageously used for machine parts and tools, to which different requirements such as chemical resistance and hardness or strength or wear resistance and toughness are made at the same time. Such composite materials can be created by fusion welding plating and the like, or by a metallic connection of two or more parts by hot forming.
Bei Herstellung einer metallischen Verbindung durch Warmumformung werden zumeist einzelne Teile in eine Kapsel eingebracht ( vgl. CH-A-227 631), diese gasdicht verschweißt ( vg. US-A- 4 640 815) und ein Resthohlraum in der Kapsel mittels eines Gasanschlusses für ein Erreichen einer ausreichenden metallischen Verbindung bzw. zur Vermeidung einer Oxidation der Oberfläche der Teile beim Erhitzen auf Verformungstemperatur mit Inertgas gefüllt oder insbesondere evakuiert, worauf dieser verschlossen wird ( vgl. EP-A-0114593).When a metallic connection is made by hot forming, individual parts are usually introduced into a capsule (see CH-A-227 631), this is welded gas-tight (see US Pat. No. 4,640,815) and a residual cavity in the capsule by means of a gas connection for reaching a sufficient metallic connection or to avoid oxidation of the surface of the parts when heated to the deformation temperature filled with inert gas or in particular evacuated, whereupon this is sealed (see EP-A-0114593).
Verbundwerkstoffe mit einer Innenkomponente und einer diese umschließende, insbesondere weitgehend konzentrische angeordnete Außenkomponente sind vorteilhaft und kostengünstig aus Vormaterial herstellbar, bei welchem der Außenteil gleichzeitig als Kapselmantel dient, wobei auf den Außenteil lediglich Kapselböden bzw. Verschlußteile stirnseitig aufgeschweißt werden. Nachteilig dabei ist, daß, wenn der Außenteil aus schwer schweißbarem oder nur mit entsprechender Vorwärmung schweißbarem Werkstoff besteht, wie u.a. Kaltarbeitsstähle (z.B. Werkstof DIN 1.2378 und dgl.), zusätzliche Maßnahmen wie beispielsweise ein Aufbringen von sogenannten Pufferschweißanlagen mit Zwischenglühungen des gesamten Außenteils und Reinigung bzw. Entzunderung, insbesondere der wärmebeeinflußten Zone erforderlich werden, bevor die Verschlußteile gasdicht aufschweißbar sind und die Schweißnaht selbst auch während einer Erwärmung des Vormaterials auf Verarbeitungstemperatur rißfrei bleibt und auch keine Risse im Grundwerkstoff induziert. Derartige zusätzliche Maßnahmen sind sehr aufwendig und erbringen meist nicht eine ausreichende Produktionssicherheit. Aus diesem Grunde und weil gegebenenfalls einige Sonderwerkstoffe nicht mit den Verschlußteilen bei Einhaltung der gestellten Anforderungen durch Schmelzschweißen verbunden werden können, muß vielfach eine Vormaterialherstellung durch ein Einschweißen der zu verbindenden Teile in eine aus schweißbaren Material bestehende verlorene Kapsel erfolgen.Composites with an inner component and an outer component that surrounds it, in particular largely concentrically arranged, can be advantageously and inexpensively produced from primary material, in which the outer part simultaneously serves as a capsule shell, with only capsule bottoms or closure parts being welded on the end face to the outer part. The disadvantage here is that if the outer part consists of a material that is difficult to weld or can only be welded with appropriate preheating, such as Cold work steels (e.g. material DIN 1.2378 and the like), additional measures such as the application of so-called buffer welding systems with intermediate annealing of the entire outer part and cleaning or descaling, especially in the heat-affected zone, are required before the closure parts can be welded gas-tight and the weld seam even during heating of the primary material to processing temperature remains crack-free and does not induce any cracks in the base material. Such additional measures are very complex and usually do not provide sufficient production security. For this reason, and because some special materials may not be able to be connected to the closure parts by fusion welding if the requirements are met, it is often necessary to produce primary material by welding the parts to be connected into a lost capsule made of weldable material.
Der Erfindung liegt die Aufgabe zugrunde, obige Nachteile zu vermeiden und auf einfache Weise ein Vormaterial für die Herstellung von Verbundwerkstoffteilen und ein Verfahren zur Herstellung des Vormaterials zu schaffen.The invention is based on the object of avoiding the above disadvantages and of creating in a simple manner a starting material for the production of composite material parts and a method for producing the starting material.
Die Erfindung besteht darin, daß Verschlußteile zumindest teilweise in einen rohrförmigen, vorzugsweise im Verschlußbereich, mit stufenförmigen Wandquerschnitt ausgebildeten Außenteil ragen, wobei an den Paßflächen, welche mit einer Rauhigkeit bzw. Rauhtiefe RA von höchstens 200 µm, vorzugsweise höchstens 10 µm, insbesondere 4 µm, gefertigt sind, eine Flächenpressung herrscht und die Verschlußteile, gegebenenfalls außenseitig, Halterungseinrichtungen, wie beispielsweise Zapfen, Sacklöcher, und dgl. und gegebenenfalls innenseitig eine oder mehrere Zentrier- oder Positionierstellen für den (die) Innenteil(e) aufweisen und im Vergleich mit dem Werkstoff des Außenteiles die Verschlußteile aus einem Werkstoff gebildet sind, der mindestens einen gleichen, insbesondere einen höheren thermischen Ausdehnungskoeffizient, vorzugsweise höheres Warmformungsvermögen, bei im wesentlichen gleichen Formänderungswiderstand bei Verarbeitungstemperatur des Vormaterials und eine um mindestens 90°C diese Temperatur übersteigende Erweichungstemeperatur aufweist und gegebenenfalls die Resthohlräume im Vormaterial mit Inertgas gefüllt oder evakuiert sind. Besonders vorteilhaft ist es, wenn die Verschlußteile aus einer austenitischen Legierung, insbesondere aus einem Chrom-Nickel-Stahl oder aus einem Manganstahl oder aus einem Nickel-Mangen-Stahl bestehen.The invention consists in that closure parts at least partially in a tubular, preferably in the closure area with step-shaped wall cross-section protrude, whereby on the mating surfaces, which are made with a roughness or roughness RA of at most 200 microns, preferably at most 10 microns, in particular 4 microns, there is a surface pressure and the closure parts, optionally outside, holding devices, such as Pins, blind holes, and the like. And optionally have one or more centering or positioning points on the inside for the inner part (s) and, in comparison with the material of the outer part, the closure parts are formed from a material that is at least one of the same, in particular one has a higher coefficient of thermal expansion, preferably higher thermoforming capacity, with essentially the same resistance to deformation at the processing temperature of the primary material and a softening temperature exceeding this temperature by at least 90 ° C. and, if appropriate, the residual cavities in the primary material are filled with inert gas or evacuated. It is particularly advantageous if the closure parts consist of an austenitic alloy, in particular of a chromium-nickel steel or of a manganese steel or of a nickel-manganese steel.
Das Verfahren zur Herstellung des Vormaterials besteht im wesentlichen darin, daß in einem rohrförmigen Außenteil, der gegebenenfalls vorher erwärmt wird, ein Verschlußteil, der auf eine um mindestens 50°C, vorzugsweise um 100°C, insbesondere um 150°C, tiefere Temperatur als der Außenteil aufweist, gebracht wird, eingesetzt und bis zum Temperaturausgleich gehalten wird, wonach in den einseitig verschlossenen Außenteil ein oder mehrere Innenteile(e), gegebenenfalls in Pulverform nach an sich bekannten Verfahren verdichtet, eingebracht wird (werden) und ein zweiter Verschlußteil nach dem gleichen Einsetzverfahren im Außenteil fixiert wird, gegebenenfalls mittels eines Gasanschlusses Inertgas in die Resthohlräume im Vormaterial eingebracht oder diese evakuiert werden, wonach der Gasanschluß verschlossen wird. Vorteilhaft ist es dabei, wenn der Außenteil auf Raumtemperatur gelassen und eine Einstellung der Temperaturdifferenz durch Kühlung der Verschlußteile in einem Kühlmedium, z.B. flüssiger Luft oder flüssigem Stickstoff, durchgeführt wird.The process for the production of the primary material consists essentially in the fact that in a tubular outer part, which may optionally be heated beforehand, a closure part which is at a temperature lower than at least 50 ° C., preferably 100 ° C., in particular 150 ° C. the outer part has been brought, inserted and held until the temperature is equalized, after which one or more inner parts (s), optionally compressed in powder form by methods known per se, are (are) introduced into the outer part which is closed and a second closure part after the same insertion method is fixed in the outer part, if necessary by means of a gas connection, inert gas is introduced into the residual cavities in the primary material or these are evacuated, after which the gas connection is closed. It is advantageous if the outer part is at room temperature left and an adjustment of the temperature difference is carried out by cooling the closure parts in a cooling medium, for example liquid air or liquid nitrogen.
Entgegen dem Vorurteil des Fachmannes, daß bei einem vakuumdichten Schrumpfsitz bzw. bei durch eine Ausdehnung des Verschlußteiles auftretenden hohen Zugspannungen im Außenteil, insbesondere wenn dieser aus sprödem Material gefertigt ist, Risse entstehen und daß aufgrund von größer werdenden Zugspannungen und einer Duktilitätsverminderung des Materials bei Durchlaufen der Versprödungstemperatur während eines Aufheizens auf Verformungstemperatur weiters Risse gebildet werden, wurde gefunden, daß beim Einsatz von insbesondere aus austenitischem Material bestehenden Verschlußteilen auch während einer Erwärmung keine Risse im Außenteil gebildet werden, auch wenn dieser aus wenig zähem bzw. spödem Material besteht. Überraschenderweise wurde weiters gefunden, daß auch bei Gefügeumwandlungen im Material des Außenteiles beim Aufheizen, welche mit Volumsänderungen verbunden sind, eine Gasdichtheit bzw. Vakuumdichtheit der Schrumpfverbindung erhalten bleibt.Contrary to the prejudice of the person skilled in the art that in the case of a vacuum-tight shrink fit or in the event of high tensile stresses occurring in the outer part due to expansion of the closure part, in particular if the latter is made of brittle material, cracks occur and that due to increasing tensile stresses and a reduction in the ductility of the material when passing through the embrittlement temperature further cracks are formed during heating to the deformation temperature, it was found that when using closure parts consisting in particular of austenitic material, no cracks are formed in the outer part even during heating, even if this consists of less tough or brittle material. Surprisingly, it has also been found that even when structural changes in the material of the outer part during heating, which are associated with changes in volume, gas tightness or vacuum tightness of the shrink connection is maintained.
Die Erfindung wird anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert:
- Fig. 1 zeigt ein Vormaterial für einen aus zwei Komponenten bestehenden Verbundwerkstoffteil,
- in Fig. 2 ist schematisch ein Vormaterial für die Herstellung eines Triverbundteiles bzw. eines aus drei Komponenten gebildeten Teiles dargestellt.
- 1 shows a primary material for a composite part consisting of two components,
- 2 schematically shows a starting material for the production of a triver composite part or a part formed from three components.
Wie aus Fig. 1 ersehen werden kann, ist ein fester Innenteil (2) in einem Außenteil (1) eingebracht, in welchen stirnseitig teilweise die Verschlußteile (3) ragen. Die Paßflächen (4) werden durch einen stufenförmigen Wandquerschnitt des Außenteiles gebildet und kooperieren mit denjenigen der Verschlußteile. Die Verschlußteile (3) haben Halterungseinrichtungen (7), wobei ein Verschlußteil einen Gasanschluß (5) besitzt. Zwischen Außenteil (1) und Innenteil (2) ist einer der Resthohlräume (6) im Vormaterial gebildet.As can be seen from Fig. 1, a fixed inner part (2) is introduced into an outer part (1), in which the closure parts (3) partially protrude at the end. The fitting surfaces (4) are formed by a stepped wall cross section of the outer part and cooperate with those of the closure parts. The closure parts (3) have mounting devices (7), one closure part has a gas connection (5). One of the remaining cavities (6) in the primary material is formed between the outer part (1) and the inner part (2).
In Fig. 2 ist ein Vormaterial für die Herstellung eines aus drei Komponenten bestehenden Verbundwerkstoffteiles dargestellt, wobei zwischen einem festen Kernteil (2), der in Positionierstellen (10) von Verschlußteilen (3) gehalten wird und einem Außenteil (1), in welchen die Verschlußteile (3) ragen, ein pulverförmiger Zwischenteil (9) angeordnet ist. Der Verschlußteil (3) , der einen Gasanschluß (5) trägt, weist eine als Sackloch ausgebildete Halterungseinrichtung auf.In Fig. 2, a starting material for the production of a three-component composite part is shown, being between a fixed core part (2), which is held in positioning points (10) by closure parts (3) and an outer part (1), in which the Closure parts (3) protrude, a powdery intermediate part (9) is arranged. The closure part (3), which carries a gas connection (5), has a mounting device designed as a blind hole.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT2479/88A AT391105B (en) | 1988-10-07 | 1988-10-07 | PRE-MATERIAL FOR THE PRODUCTION OF COMPOSITES |
| AT2479/88 | 1988-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0364430A1 true EP0364430A1 (en) | 1990-04-18 |
Family
ID=3535075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89890232A Withdrawn EP0364430A1 (en) | 1988-10-07 | 1989-09-05 | Billet for the production of composite materials |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5004653A (en) |
| EP (1) | EP0364430A1 (en) |
| JP (1) | JPH02122003A (en) |
| CN (1) | CN1042323A (en) |
| AT (1) | AT391105B (en) |
| FI (1) | FI87743C (en) |
| NO (1) | NO893933L (en) |
| RU (1) | RU2004383C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032819A1 (en) * | 1994-05-30 | 1995-12-07 | Anval Nyby Powder Ab | Manufacturing of high alloy wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5613181A (en) * | 1994-12-21 | 1997-03-18 | International Business Machines Corporation | Co-sintered surface metallization for pin-join, wire-bond and chip attach |
| US6218026B1 (en) | 1995-06-07 | 2001-04-17 | Allison Engine Company | Lightweight high stiffness member and manufacturing method thereof |
| US5724643A (en) * | 1995-06-07 | 1998-03-03 | Allison Engine Company, Inc. | Lightweight high stiffness shaft and manufacturing method thereof |
| US6168072B1 (en) | 1998-10-21 | 2001-01-02 | The Boeing Company | Expansion agent assisted diffusion bonding |
| US6811745B2 (en) * | 2003-01-16 | 2004-11-02 | Ut-Battelle, Llc | Manufacture of annular cermet articles |
| CN100436923C (en) * | 2006-09-12 | 2008-11-26 | 武汉理工大学 | Hypothermal moment tube made from composite material, and prepartion method |
| JP2017511427A (en) * | 2013-12-20 | 2017-04-20 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Method for manufacturing a cladding component |
| US20160361766A1 (en) * | 2013-12-20 | 2016-12-15 | Sandvik Intellectual Property Ab | Method for manufacturing a fuel nozzle blank with a metallic cladding |
| CN104368804B (en) * | 2014-09-25 | 2016-08-24 | 武汉重工铸锻有限责任公司 | Chock plug and the integral processing method of nozzle connection |
| CN106944612B (en) * | 2017-05-22 | 2019-01-22 | 广东博杰特新材料科技有限公司 | Bimetallic pipe sleeve vacuum-sintering moulding process and its product |
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| US2348696A (en) * | 1941-09-19 | 1944-05-09 | Erie Enameling Company | Method of forming tanks |
| US3941570A (en) * | 1972-10-10 | 1976-03-02 | Aluminum Company Of America | Conically capped extrusion billet |
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| US4015765A (en) * | 1976-05-10 | 1977-04-05 | Western Electric Company, Inc. | Formation and utilization of compound billet |
| US4640815A (en) * | 1985-10-17 | 1987-02-03 | Crucible Materials Corporation | Method and assembly for producing extrusion-clad tubular product |
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| CH227631A (en) * | 1941-07-16 | 1943-06-30 | Metallgesellschaft Ag | Process for the production of composite bodies using metal powders. |
| GR79748B (en) * | 1982-12-23 | 1984-10-31 | Ver Edelstahlwerke Ag | |
| DE3881923T2 (en) * | 1987-03-25 | 1994-01-27 | Nippon Steel Corp | Process for the production of coated metal pipes. |
| SE460955B (en) * | 1987-12-18 | 1989-12-11 | Kommanditbolaget Cold Isostati | SATISFIED IN PREPARATION OF A TUBE POWDER PRESSURE BODY AND A FOOD IMPLEMENTED BY THE SUITABLE DEVICE |
| US4933141A (en) * | 1988-03-28 | 1990-06-12 | Inco Alloys International, Inc. | Method for making a clad metal product |
-
1988
- 1988-10-07 AT AT2479/88A patent/AT391105B/en not_active IP Right Cessation
-
1989
- 1989-09-05 EP EP89890232A patent/EP0364430A1/en not_active Withdrawn
- 1989-09-29 JP JP1252479A patent/JPH02122003A/en active Pending
- 1989-10-03 NO NO89893933A patent/NO893933L/en unknown
- 1989-10-04 FI FI894694A patent/FI87743C/en not_active IP Right Cessation
- 1989-10-05 US US07/416,676 patent/US5004653A/en not_active Expired - Fee Related
- 1989-10-06 RU SU894742126A patent/RU2004383C1/en active
- 1989-10-07 CN CN89107697.2A patent/CN1042323A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2348696A (en) * | 1941-09-19 | 1944-05-09 | Erie Enameling Company | Method of forming tanks |
| US3941570A (en) * | 1972-10-10 | 1976-03-02 | Aluminum Company Of America | Conically capped extrusion billet |
| US4016008A (en) * | 1975-07-31 | 1977-04-05 | The International Nickel Company, Inc. | Clad metal tubes |
| US4015765A (en) * | 1976-05-10 | 1977-04-05 | Western Electric Company, Inc. | Formation and utilization of compound billet |
| US4640815A (en) * | 1985-10-17 | 1987-02-03 | Crucible Materials Corporation | Method and assembly for producing extrusion-clad tubular product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032819A1 (en) * | 1994-05-30 | 1995-12-07 | Anval Nyby Powder Ab | Manufacturing of high alloy wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02122003A (en) | 1990-05-09 |
| NO893933D0 (en) | 1989-10-03 |
| US5004653A (en) | 1991-04-02 |
| FI87743B (en) | 1992-11-13 |
| FI894694A (en) | 1990-04-08 |
| AT391105B (en) | 1990-08-27 |
| RU2004383C1 (en) | 1993-12-15 |
| ATA247988A (en) | 1990-02-15 |
| FI894694A0 (en) | 1989-10-04 |
| NO893933L (en) | 1990-04-09 |
| CN1042323A (en) | 1990-05-23 |
| FI87743C (en) | 1993-02-25 |
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