EP1673486A1 - Verbundwerkstoff, verfahren zur herstellung eines verbundwerkstoffs und verwendung desselben - Google Patents
Verbundwerkstoff, verfahren zur herstellung eines verbundwerkstoffs und verwendung desselbenInfo
- Publication number
- EP1673486A1 EP1673486A1 EP04786887A EP04786887A EP1673486A1 EP 1673486 A1 EP1673486 A1 EP 1673486A1 EP 04786887 A EP04786887 A EP 04786887A EP 04786887 A EP04786887 A EP 04786887A EP 1673486 A1 EP1673486 A1 EP 1673486A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier material
- fiber
- recess
- composite material
- fibers
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/025—Aligning or orienting the fibres
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/20—Making alloys containing metallic or non-metallic fibres or filaments by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
-
- 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
- Y10T428/12444—Embodying fibers interengaged or between layers [e.g., paper, etc.]
-
- 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
- Y10T428/21—Circular sheet or circular blank
-
- 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
- Y10T428/21—Circular sheet or circular blank
- Y10T428/211—Gear
-
- 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
- Y10T428/21—Circular sheet or circular blank
- Y10T428/218—Aperture containing
Definitions
- the invention relates to a composite material, a method for producing a composite material and the use of the same.
- titanium alloys The most important materials used today for aircraft engines or other gas turbines are titanium alloys, nickel alloys (also called super alloys) and high-strength steels.
- the high-strength steels are used in particular for shaft parts and gear parts and for compressor housings and turbine housings. Titanium alloys are typical materials for compressor parts, nickel alloys are suitable for the hot parts of the aircraft engine.
- Modern composite materials have a carrier material, which can be designed as a polymer, metal or ceramic matrix, as well as fibers embedded in the carrier material.
- the present invention relates to a composite material in which the carrier material is designed as a metal matrix.
- a material is also called a metal matrix composite - MMC for short. This can be done with high-strength M MC materials, in which titanium is used as the carrier material Component weights can be reduced by up to 50% compared to conventional titanium alloys. Fibers with high strength and high modulus of elasticity are used as reinforcements.
- EP 0 490 629 B1 discloses a preform for a composite material with a film, the film having a groove and a thread-like reinforcement arranged in the groove, and the preform being in the form of a ring or a disk.
- EP 0 490 629 B1 proceeds by superimposing several such preforms, the preforms being solidified under heat and pressure to form a completely sealed composite material.
- Further composite materials and methods for producing the same are known from EP 0 909 826 B1, US 4,697,324 and US 4,900,599.
- the present invention is based on the problem of creating a new type of composite material and a new type of method for producing composite materials.
- the composite material has a carrier material and at least one fiber embedded in the carrier material.
- the composite material has a carrier material and at least one fiber embedded in the carrier material.
- the fibers end adjacent to an inner opening with the same distance from the opening, but adjacent to the outer section, in which the carrier material is exclusively present, this distance is designed differently.
- the inventive method for producing a composite material is defined in independent claim 6. The method is used to produce a composite material from a carrier material and from at least one fiber embedded in the carrier material.
- a recess is preferably made in the disk, the depth of which is greater than the diameter of the fiber, in such a way that, in the case of a fiber inserted into the recess, webs of carrier material project over the fiber.
- the or each fiber is inserted into the or each recess of the corresponding disk in such a way that a composite of carrier material and fiber is present in an inner section, whereas the carrier material is exclusively present in an outer section.
- the disks are stacked in such a way that the fibers of the stacked disks protrude to different extents in an outer section, in which the carrier material is exclusively present, for the strength-optimizing interlocking of the inner section and the outer section.
- Fig. 1 a disk made of carrier material in a schematic cross section
- FIG. 2 a greatly enlarged section of the pane according to FIG. 1 with a recess made in the pane;
- Fig. 5 the detail V of Fig. 4;
- the composite material according to the invention has a carrier material made of titanium or a titanium alloy as well as several fibers embedded in the carrier material.
- the fibers are preferably ceramic fibers made of silicon carbonate.
- the composite material according to the invention is formed from a plurality of disks made of carrier material, a fiber being embedded in each disk. Several such disks with a fiber embedded therein are stacked one above the other and connected to one another to form the composite material according to the invention.
- a recess is made in the disk to embed the fiber in the respective disk made of carrier material.
- the corresponding fiber is inserted into the recess and surrounded on all sides by carrier material, so that the fiber is embedded in the disk.
- Fig. 1 shows a disc 10 made of carrier material, namely titanium, in a highly schematic cross section.
- the disc 10 has a bore 11 in a central region.
- a recess is made in an end face 12 of the pane 10 after a first step of the method according to the invention.
- 2 shows a greatly enlarged detail of the disk 10 in the region of the end face 12.
- the recess 13, which is introduced into the end face 12 of the disk 10, is a spiral groove. The spiral groove therefore extends exclusively on one end face 12 of the disk 10 from the inside to the outside.
- FIG. 3 shows that webs 15 made of carrier material protrude above fiber 14 when fiber 14 is inserted.
- the depth of the spiral recess 13 is accordingly greater than the diameter of the fiber 14.
- the arrangement according to FIG. 3 is subjected to a superplastic forming process.
- the disk 10 or the carrier material is heated to a forming temperature and the webs 15 are shaped superplastically by uniaxial pressing such that the fiber 14 is subsequently surrounded on all sides by the carrier material in the sense of FIG. 5 and the fiber 14 is thus embedded in the carrier material is.
- FIG. 5 shows that the position of the fiber 14 is retained even after the webs 15 have been superplastically formed.
- the carrier material is compressed during superplastic forming.
- FIG. 4 shows a disk 10 made of carrier material with the fiber 14 embedded in the disk 10 in a highly schematic cross section.
- the fiber 14 is surrounded on all sides by the carrier material and is therefore embedded in the carrier material.
- a plurality of disks 10 with fibers 14 embedded in the disks 10 are arranged one above the other and in this way stacked in an annular or cylindrical manner.
- the stacked and stacked disks 10 are then joined or connected to one another by diffusion welding under slight axial pressure. This ultimately provides the composite material according to the invention.
- the disks 10 with the fibers 14 embedded in the disks 10 are preferably checked for cracks in the carrier material and for breaks in the fibers 14. This check can be carried out using ultrasound, X-ray or tomography , If such a crack or break is found, the pane 10 is discarded. If it is found during the check that there is no crack or break in the fiber 14, the disk 10 can be used for stacking.
- FIG. 7 shows a section of the arrangement according to FIG. 6 in the region of three disks 10 arranged one above the other and connected to one another.
- the fiber 14 embedded in a disk 10 is offset from the fibers 14 of the two adjacent ones Discs 10 runs.
- a hexagonal packing of the fibers 14 can be achieved.
- a fiber 1 runs in a spiral within a disk 10 in such a way that in cross section the resulting centers of the fiber 1 of a disk 10 are arranged between the corresponding centers of the fiber 14 of an adjacent disk 10.
- each fiber 14 ends within each disk 10 at a distance from an outer, lateral end of the respective disk. 6, this distance is different for each disc. Adjacent to the inner opening 11, however, the lateral distance of the fibers 14 from the opening 11 is the same. Due to the different lateral distances between the fibers 14 and the outer, lateral end of the disks 10, gradual changes in the elastic properties of the composite material can be achieved. len. Furthermore, a toothing between the unreinforced and fiber-reinforced areas of the composite material is achieved, which has a positive influence on the strength properties.
- FIG. 8 shows a highly schematic cross section through a composite material according to the invention. This was made as described above. 8, the fibers 14 are embedded in the carrier material in an inner section 16 of the composite material. In contrast, the carrier material is exclusively present in an external section 17. This means that only titanium is present in the outer section 17. This is advantageous if the composite material is to be subjected to further processing, for example by milling. The fibers 14 must not be damaged during milling. Later milling of the composite material is therefore only considered in the area of section 17, in which the carrier material is exclusively present. Furthermore, FIG. 8 again shows the detail that the fibers 14 end adjacent to the inner opening at the same distance from the opening, but at the outer end, adjacent to section 17, in which the carrier material is exclusively present, this distance is designed differently. The radial gradation of the fibers 14 in section 16 relative to section 17 brings about a strength-optimizing interlocking of the two sections 16 and 17.
- a first step several discs made of carrier material, namely titanium, are provided with a spiral recess on one end face thereof.
- a fiber made of silicon carbonate is inserted into this spiral recess.
- the disk with the fiber inserted in the disk is consolidated by superplastic forming.
- the fiber is surrounded on all sides by the carrier material or embedded in the carrier material.
- the disks produced in this way with fibers embedded in the disks are checked for cracks in the carrier. material as well as breaks in the fibers. If this check shows that there is neither a crack nor a fiber break, the corresponding disks are stacked into rings.
- the stack of several rings is then subjected to diffusion welding in a further step of the method according to the invention, so that adjacent panes are connected to one another.
- the composite material can be finished in a further step, for example by milling.
- the method according to the invention is reliable and inexpensive.
- the method according to the invention is a fully automatable process with integrated checking and thus quality assurance. Since each pane can be checked for its quality, defects in the composite material can be recognized in good time and thus avoided. Waste is reduced.
- Another advantage can be seen in the fact that an exact position of the fibers in the composite material is specified and maintained.
- more complex fiber guides for example star-shaped fiber guides, are also possible.
- a titanium coating of the fibers as required by the prior art, can be dispensed with.
- Another advantage is that no extremely long fibers have to be used. By guiding the fibers in recesses, fibers of finite length can be used.
- the composite material according to the invention is therefore characterized by an exact position of the fibers within the carrier material.
- the composite material according to the invention is formed by a plurality of joined disks made of carrier material, a spiral-shaped fiber being embedded within each disk. The fibers end at a distance from a lateral, outer end of the composite material, so that the carrier material is exclusively present in an outer area of the same, in which area the composite material can be subsequently milled.
- a plurality of fibers can also be embedded in a recess and that a plurality of fibers can also be nested in one disc nested recesses can be introduced, wherein each of these recesses can in turn receive one or more fibers.
- the exemplary embodiment shown, in which each disk has a recess for receiving a fiber is preferred.
- the composite material according to the invention is particularly suitable for use as a material in the production of rings with integral blading for aircraft engines, which are also referred to as so-called bladed rings (blings).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10348506A DE10348506A1 (de) | 2003-10-18 | 2003-10-18 | Verbundwerkstoff, Verfahren zur Herstellung eines Verbundwerkstoffs und Verwendung desselben |
PCT/DE2004/002175 WO2005040444A1 (de) | 2003-10-18 | 2004-09-30 | Verbundwerkstoff, verfahren zur herstellung eines verbundwerkstoffs und verwendung desselben |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1673486A1 true EP1673486A1 (de) | 2006-06-28 |
EP1673486B1 EP1673486B1 (de) | 2008-04-09 |
Family
ID=34428469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04786887A Not-in-force EP1673486B1 (de) | 2003-10-18 | 2004-09-30 | Verfahren zur herstellung eines verbundwerkstoffs und verwendung desselben |
Country Status (4)
Country | Link |
---|---|
US (1) | US7524566B2 (de) |
EP (1) | EP1673486B1 (de) |
DE (2) | DE10348506A1 (de) |
WO (1) | WO2005040444A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008052247A1 (de) * | 2008-10-18 | 2010-04-22 | Mtu Aero Engines Gmbh | Bauteil für eine Gasturbine und Verfahren zur Herstellung des Bauteils |
CA2897519A1 (en) | 2013-03-13 | 2014-10-09 | Aaron D. SIPPEL | Compliant composite component and method of manufacture |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3419952A (en) * | 1966-09-12 | 1969-01-07 | Gen Electric | Method for making composite material |
US4697324A (en) * | 1984-12-06 | 1987-10-06 | Avco Corporation | Filamentary structural module for composites |
US4900599A (en) * | 1986-11-21 | 1990-02-13 | Airfoil Textron Inc. | Filament reinforced article |
US4919594A (en) * | 1987-05-15 | 1990-04-24 | Allied-Signal Inc. | Composite member, unitary rotor member including same, and method of making |
US5337940A (en) * | 1990-12-11 | 1994-08-16 | Woods Harlan L | Composite preform and method of manufacturing fiber reinforced composite |
US5431984A (en) * | 1990-12-11 | 1995-07-11 | Avco Corporation | Composite preforms with groves for fibers and groves for off-gassing |
US6261699B1 (en) * | 1999-04-28 | 2001-07-17 | Allison Advanced Development Company | Fiber reinforced iron-cobalt composite material system |
US6916550B2 (en) * | 2000-09-11 | 2005-07-12 | Allison Advanced Development Company | Method of manufacturing a metal matrix composite structure |
-
2003
- 2003-10-18 DE DE10348506A patent/DE10348506A1/de not_active Withdrawn
-
2004
- 2004-09-30 EP EP04786887A patent/EP1673486B1/de not_active Not-in-force
- 2004-09-30 DE DE502004006792T patent/DE502004006792D1/de active Active
- 2004-09-30 WO PCT/DE2004/002175 patent/WO2005040444A1/de active IP Right Grant
- 2004-09-30 US US10/575,695 patent/US7524566B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005040444A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7524566B2 (en) | 2009-04-28 |
US20070141298A1 (en) | 2007-06-21 |
WO2005040444A1 (de) | 2005-05-06 |
DE502004006792D1 (de) | 2008-05-21 |
DE10348506A1 (de) | 2005-05-12 |
EP1673486B1 (de) | 2008-04-09 |
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