EP0902095A2 - Verfahren zur Herstellung eines Gussbauteiles aus einem Leichtmetallwerkstoff mit erhöhtem Dämpfungsvermögen - Google Patents
Verfahren zur Herstellung eines Gussbauteiles aus einem Leichtmetallwerkstoff mit erhöhtem Dämpfungsvermögen Download PDFInfo
- Publication number
- EP0902095A2 EP0902095A2 EP98109036A EP98109036A EP0902095A2 EP 0902095 A2 EP0902095 A2 EP 0902095A2 EP 98109036 A EP98109036 A EP 98109036A EP 98109036 A EP98109036 A EP 98109036A EP 0902095 A2 EP0902095 A2 EP 0902095A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- damping
- light metal
- texture
- cast
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/06—Special casting characterised by the nature of the product by its physical properties
Definitions
- the invention relates to Process for increasing the damping of a cast component made of a light metal material, the damping increased by means of an additional element becomes.
- SiC, graphite, Al 2 O 3 particles and graphite, W, B, SiC, Al 2 O3 fibers are predominantly used as the reinforcement phase in the sense of an additional element that increases the damping.
- the composite materials are manufactured using the technologies of melt metallurgy, powder metallurgy and spray compacting. Another possibility for achieving a higher damping of the light metal materials is the production of porous materials.
- the porous structures can be adjusted using sintering technology and spray compacting.
- a porous material is also present in the metal foams produced by powder metallurgy and melt metallurgy.
- the design of the components with ribbing to minimize the Sound radiation is disadvantageous and widespread for reasons of weight and space not possible.
- the disadvantages of composite materials are in particular the higher ones Manufacturing costs by introducing the reinforcement phase or the additional Damping element in the matrix material and the problems with the complex Recycling of such materials.
- the porous materials are Compared to the solid material, the mechanical properties are significantly poorer a major disadvantage.
- the invention has for its object a for the method to increase To show a suitable additional element for the natural damping of the light metal material.
- Wire inlays in light metal components are e.g. from DE-B 1 134 481 for the purpose the component reinforcement is known. This is also the use of metallic fibers known for example from DE-A 26 44 272. Mats made of metallic threads in Cast components are described in US Pat. No. 3,098,723. Finally, it is from DE-Z "Archive for the ironworks, 43rd year, volume 7, July 1972, pages 571 - 575 '' known to cast wires in aluminum or magnesium for component reinforcement, however, an increased internal damping in the sense of the invention is not disclosed anywhere.
- the advantage of the invention over the solid material is a multiple increase the internal damping of the light metal material used for a cast component to see, in the embodiment of the method according to the invention Claim 2 a particularly high damping is achieved in that the wire texture as a knitted fabric made of a wire made of a highly damping nickel material is formed with a purity of at least 99%, with a round or Flat wire with a diameter of 0.05 - 0.6 mm is used.
- a particularly high damping is achieved in that the wire texture as one Pressed molded part made of multi-layer wire mesh with interlocking loops Mesh is formed, the wire mesh molding for pickled better.
- the light metal material is preferably used to form a wire knit with a mesh pitch of 2 - 30 mm and with a mesh length of 1.5 - 15 mm used.
- the method according to the invention is particularly found Use for die-cast components, these in a further embodiment can be as vehicle and / or machine-bound die-cast components such as. an oil pan, a gearbox cover, a cylinder head cover, a gearbox, Etc.
- the wire texture designed as a casting insert can be made from a fabric-like ordered structure and / or formed from a mat-like, disordered structure be such that a porosity for substantially complete infiltration is achieved through the light metal matrix.
- the process according to the invention takes the form of a die-cast part made of an aluminum alloy
- an element of such a heavy metal or Heavy metal alloy formed by great internal damping and when casting in essential completely infiltrable wire texture used as a casting insert that in the connection areas of the light metal matrix and heavy metal wires an energy input through sound or structure-borne sound through to the wires longitudinally elastic deformations an increase in material damping in the cast component is effected.
- the longitudinal elastic deformations caused by energy input are based in particular on dislocation movements, on interface friction as well as on grain boundary gliding.
- the knitted fabric from a wire made of a highly damping nickel material with a purity of at least 99% formed is chosen in terms of its density such that a porosity of the wire mesh for an essentially complete infiltration through the aluminum alloy is specified.
- Particularly high damping is achieved that the wire texture as a pressed molded part from multi-layer wire knitted webs is formed with interlocking meshes, the Wire knit molding is pickled for better pourability.
- a die-cast part with a casting insert made of a nickel wire knit results in opposite a die-cast part made of a solid aluminum alloy multiple Self-damping.
- a die-cast part with the inherent damping achieved according to the invention has an advantageous effect at frequencies such as those found in drive units of motor vehicles occur.
- a wire texture can also be used as a knitted fabric made of a wire made of a highly damping ferritic FeCrAl 20 5 steel are formed, preferably also as pressed and pickled Wire knit molding.
- a wire texture serving as a casting insert can also be used be formed from wires of both materials.
- the wire texture designed as a casting insert can also be a fabric-like one ordered structure and / or from a mat-like, disordered structure be formed such that a porosity for substantially complete infiltration is achieved by the respective light metal matrix.
- the method according to the invention offers, in addition to the advantageously sound-absorbing Effect the further advantage that through the use of metallic wire mesh the highly damping light metal material easily and completely is recyclable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims (8)
- Verfahren zur Steigerung der Dämpfung eines Gußbauteiles aus einem Leichtmetallwerkstoff,wobei die Dämpfung mittels eines zusätzlichen Elementes gesteigert wird,
dadurch gekennzeichnet,daß als Element eine aus einem derartigen Schwermetall oder einer Schwermetall-Legierung von großer Eigendämpfung gebildete und beim Gießen im wesentlichen vollständig infiltrierbare Draht-Textur als Gießeinlage verwendet wird, daßin den Verbindungsbereichen von Leichtmetall-Matrix und Schwermetall-Drähten bei einem Energieeintrag (Schall, Körperschall) durch zu den Drähten längselastische Verformungen eine Steigerung der Materialdämpfung im Gußbauteil bewirkt wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet,daß als Leichtmetallwerkstoff insbesondere eine Alu-Legierung verwendet wird unddie Draht-Textur als ein Gestrick aus einem Draht aus einem hochdämpfenden Nickel-Werkstoff mit einer Reinheit von mindestens 99 % gebildet wird, wobeiein Rund- oder Flachdraht mit einem Durchmesser von 0,05 - 0,6 mm verwendet wird.
- Verfahren nach Anspruch 1 und/oder 2, dadurch gekennzeichnet,daß als Leichtmetallmatrix insbesondere eine Alu-Legierung verwendet wird unddie Draht-Textur als ein Gestrick aus einem Draht aus einem hochdämpfenden ferritischen FeCrAl 20 5-Stahl gebildet wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet,daß die Draht-Textur als ein gepreßtes Formteil aus mehrlagigen Drahtgestrickbahnen mit schlingenförmig ineinandergreifenden Maschen gebildet wird, wobeidas Drahtgestrick-Formteil gebeizt wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß ein Drahtgestrick-Formteil mit einer Maschenteilung von 2 - 30 mm und mit einer Maschenlänge von 1,5 - 15 mm verwendet wird.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 5, gekennzeichnet durch die Verwendung für Druckguß-Bauteile.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 6, gekennzeichnet durch die Verwendung für fahrzeug- und/oder maschinengebundene Druckguß-Bauteile wie Ölwanne, Räderkastendeckel, Zylinderkopfhaube, Getriebegehäuse etc.
- Verfahren nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet,daß die als Gießeinlage gestaltete Draht-Textur aus einer gewebeartig geordneten Struktur und/oder aus einer mattenartigen, ungeordneten Struktur gebildet wird derart, daßeine Porosität für eine im wesentlichen vollständige Infiltration durch die Leichtmetallmatrix erzielt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19737601 | 1997-08-28 | ||
DE19737601A DE19737601A1 (de) | 1997-08-28 | 1997-08-28 | Verfahren zur Steigerung der Dämpfung eines Gußbauteiles aus einem Leichtmetallwerkstoff |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0902095A2 true EP0902095A2 (de) | 1999-03-17 |
EP0902095A3 EP0902095A3 (de) | 1999-06-23 |
EP0902095B1 EP0902095B1 (de) | 2004-04-21 |
Family
ID=7840508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109036A Expired - Lifetime EP0902095B1 (de) | 1997-08-28 | 1998-05-18 | Gussbauteil aus einem Leichtmetallwerkstoff mit einer zur Steigerung der Dämpfung dienenden Giessenlage. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0902095B1 (de) |
DE (2) | DE19737601A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19918485C1 (de) * | 1999-04-23 | 2000-12-28 | Harald Uhlig Stahldraht Gmbh | Verbundwerkstoff, insbesondere in Form eines Bleches, und Verfahren zu seiner Herstellung |
DE102004047850A1 (de) * | 2004-09-29 | 2006-04-06 | Georg Fischer Gmbh & Co.Kg | Gussformteil mit hoher Festigkeit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2118848A1 (de) * | 1971-04-19 | 1972-11-02 | Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Verfahren und Vorrichtung zur Herstellung eines rotationssymmetrischen Verbundkörpers |
EP0338783A2 (de) * | 1988-04-19 | 1989-10-25 | Ube Industries, Ltd. | Faserverstärktes Verbundmetall |
US5523171A (en) * | 1993-12-20 | 1996-06-04 | Hyundai Motor Company | Reinforced material for an automobile connecting rod |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE286701C (de) * | ||||
DE243704C (de) * | ||||
DE1134481B (de) * | 1955-01-26 | 1962-08-09 | Marshall G Whitfield | Verfahren zum Herstellen von gegossenen Leichtmetallkolben mit Verstaerkung an der Kolbenringnut |
US3098723A (en) * | 1960-01-18 | 1963-07-23 | Rand Corp | Novel structural composite material |
US3359615A (en) * | 1963-03-06 | 1967-12-26 | Nat Lead Co | Method of making a die cast cylinder for internal combustion engines |
JPS5260222A (en) * | 1975-09-30 | 1977-05-18 | Honda Motor Co Ltd | Method of manufacturing fibre reinforced composite |
DE2803763A1 (de) * | 1978-01-28 | 1979-08-02 | Willi Eberbach Kg Metallgiesse | Verfahren zur herstellung von werkstuecken aus ne-metallen im druckguss- oder kokillengussverfahren und nach dem verfahren hergestellte werkstuecke |
ZA811792B (en) * | 1980-03-21 | 1982-10-27 | Dana Corp | Method of bonding piston ring insert |
DE3807347A1 (de) * | 1988-03-05 | 1989-09-14 | Werner Schatz | Formkoerper aus mehreren metallschichten sowie verfahren zu ihrer herstellung |
-
1997
- 1997-08-28 DE DE19737601A patent/DE19737601A1/de not_active Ceased
-
1998
- 1998-05-18 DE DE59811223T patent/DE59811223D1/de not_active Expired - Lifetime
- 1998-05-18 EP EP98109036A patent/EP0902095B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2118848A1 (de) * | 1971-04-19 | 1972-11-02 | Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Verfahren und Vorrichtung zur Herstellung eines rotationssymmetrischen Verbundkörpers |
EP0338783A2 (de) * | 1988-04-19 | 1989-10-25 | Ube Industries, Ltd. | Faserverstärktes Verbundmetall |
US5523171A (en) * | 1993-12-20 | 1996-06-04 | Hyundai Motor Company | Reinforced material for an automobile connecting rod |
Non-Patent Citations (4)
Title |
---|
BAKARINOVA V I ET AL: "Effect of the treatment conditions of the structure and properties of the composite material reinforced with steel mesh of tricot type" FIZIKA I KHIMIYA OBRABOTKI MATERIALOV, JAN.-FEB. 1994, V.E. RIECANSKY TECHNICAL TRANSLATIONS, RUSSIA, Bd. 28, Nr. 1, Seiten 95-103, XP002100337 ISSN 0015-3214 * |
FURUYA YASUBUMI ET AL: "Enhanced mechanical properties of TiNi shape memory fiber/Al matrix composite" MATER TRANS JIM;MATERIALS TRANSACTIONS, JIM MAR 1993 PUBL BY JAPAN INST OF METALS, SENDAI, JPN, Bd. 34, Nr. 3, M{rz 1993, Seiten 224-227, XP002100336 * |
FURUYA, Y. (VERT BAR) A TOHOKU UNIVERSITY: "Design and material evaluation of shape memory composites." JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES (1996) 7, (3), 321-330, GRAPHS, PHOTOMICROGRAPHS, 7 REF. ISSN: 1045-389X, XP002100338 * |
WOLFENDEN A ET AL: "Mechanical damping and dynamic modulus measurements in alumina and tungsten fibre-reinforced aluminium composites" JOURNAL OF MATERIALS SCIENCE, SEPT. 1989, UK, Bd. 24, Nr. 9, Seiten 3205-3212, XP002100339 ISSN 0022-2461 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19918485C1 (de) * | 1999-04-23 | 2000-12-28 | Harald Uhlig Stahldraht Gmbh | Verbundwerkstoff, insbesondere in Form eines Bleches, und Verfahren zu seiner Herstellung |
DE102004047850A1 (de) * | 2004-09-29 | 2006-04-06 | Georg Fischer Gmbh & Co.Kg | Gussformteil mit hoher Festigkeit |
Also Published As
Publication number | Publication date |
---|---|
DE19737601A1 (de) | 1999-03-04 |
EP0902095A3 (de) | 1999-06-23 |
DE59811223D1 (de) | 2004-05-27 |
EP0902095B1 (de) | 2004-04-21 |
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