DE10355892A1 - Process for producing Ti, Zr, Hf-containing drop forgings - Google Patents
Process for producing Ti, Zr, Hf-containing drop forgings Download PDFInfo
- Publication number
- DE10355892A1 DE10355892A1 DE10355892A DE10355892A DE10355892A1 DE 10355892 A1 DE10355892 A1 DE 10355892A1 DE 10355892 A DE10355892 A DE 10355892A DE 10355892 A DE10355892 A DE 10355892A DE 10355892 A1 DE10355892 A1 DE 10355892A1
- Authority
- DE
- Germany
- Prior art keywords
- drop
- titanium
- forging
- weight
- heated
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C16/00—Alloys based on zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
-
- 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
- C22F1/18—High-melting or refractory metals or alloys based thereon
-
- 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
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
-
- 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
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/186—High-melting or refractory metals or alloys based thereon of zirconium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Herstellung von Gesenkschmiedeteilen, die im wesentlichen aus Titan, Zirconium, Hafnium oder einer entsprechenden Legierung bestehen, durch das die Festigkeit der Gesenkschmiedeteile erhöht wird.The invention relates to a method of manufacturing die forgings consisting essentially of titanium, zirconium, hafnium or a corresponding alloy which increases the strength of the drop forgings.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Gesenkschmiedeteilen, die im wesentlichen aus Titan, Zirkonium Hafnium oder einer entsprechenden Legierung bestehen. Die Erfindung betrifft außerdem derartige Gesenkschmiedeteile.The The invention relates to a method for the production of drop forged parts, consisting essentially of titanium, zirconium hafnium or a corresponding one Alloy exist. The invention also relates to such drop forgings.
Insbesondere Titan ist ein interessantes Leichtmetall, da es fast 50% leichter ist als Stahl. Daher sind Ti, Zr, Hf-Bauteile im Kraftfahrzeugbereich besonders interessant, wenn ungefederte oder rotierende bzw. oszillierende Massen reduziert werden sollen. In diesem Zusammenhang sind Gesenkschmiedeteile (aus Stäben, Drähten), insbesondere geschmiedete Pleuel, Kurbel- und Nockenwellen oder Ventilteile zu nennen. Titan verfügt im Vergleich zu metallischen Werkstoffen jedoch über ein vergleichsweise niedriges Elastizitätsmodul (kurz: E-Modul in GPa; Materials Properties Handbook: Titanium Alloys, Editors: Boyer, Welsch, Collings, ASM International, Materials Park, OH 44073-002). So beträgt das E-Modul von Titan-Legierungen lediglich ca. 90 GPa, von Stahl ca. 210 GPa, von Al-Legierungen ca. 70 GPa und von Mg-Legierungen ca. 30 bis 40 GPa.Especially Titanium is an interesting light metal as it is almost 50% lighter is as steel. Therefore, Ti, Zr, Hf components are particularly useful in the automotive field interesting if unsprung or rotating or oscillating Masses should be reduced. In this context, die forgings are (from bars, Wires) in particular forged connecting rods, crankshafts and camshafts or To name valve parts. Titanium features compared to metallic ones However, materials over a comparatively low modulus of elasticity (in short: modulus of elasticity in GPa; Materials Properties Handbook: Titanium Alloys, Editors: Boyer, Welsch, Collings, ASM International, Materials Park, OH 44073-002). So is the modulus of titanium alloys only about 90 GPa, of steel about 210 GPa, of Al alloys about 70 GPa and of Mg alloys about 30 to 40 GPa.
Gesenkschmiedeteile von sich in Motoren bewegenden Bauteilen aus Titan, wie beispielsweise Pleuels, Kurbelwellen, Nocken wellen und/oder Ventilteilen, können folglich nur geringen Belastungen standhalten.Drop forged of titanium moving parts in engines, such as connecting rods, Crankshafts, cam shafts and / or valve parts, therefore withstand only low loads.
Im
Stand der Technik sind Beschichtungsverfahren für Bauelemente beschrieben,
die zu einer Härtung
der Titanlegierung führen.
Es ist Aufgabe der vorliegenden Erfindung ein Verfahren zur Herstellung von Gesenkschmiedeteilen, die im wesentlichen aus Ti, Zr, Hf oder einer entsprechenden Legierung bestehen, bereitzustellen, bei welchem ein hoher E-Modul der Gesenkschmiedeteile erzielt wird.It The object of the present invention is a process for the preparation of drop forgings, consisting essentially of Ti, Zr, Hf or a corresponding alloy to provide, in which a high E-modulus of the drop forgings is achieved.
Die Aufgabe wird durch ein Verfahren gelöst, bei dem zu 80 Gew.-% oder mehr Ti und/oder Zr und/oder Hf enthaltende Materialien, oder Legierungen davon, in oder während des Umformens oberhalb 5–15 K der α/β-Phasengrenze erwärmt und anschließend abgekühlt werden. Vorzugsweise ist eine Erwärmung für ca. 20 bis 60 Minuten vorzusehen. Dadurch wird erreicht, dass das E-Modul und Festigkeit der verwendeten Ti, Zr, Hf-Materialien in und während der Herstellung des Gesenkschmiedeteils erhöht wird.The Task is solved by a method in which to 80 wt .-% or more Ti and / or Zr and / or Hf containing materials, or alloys of it, in or during of forming above 5-15 K of the α / β phase boundary heated and subsequently chilled become. It is preferable to provide heating for about 20 to 60 minutes. Thereby is achieved that the modulus of elasticity and strength of the Ti used, Zr, Hf materials in and during the production of the Gesenkschmiedeteils is increased.
Mit Hilfe des erfindungsgemäßen Verfahrens können im Vergleich zu Stahlbauteilen bis zu 35% oder mehr der oszillierenden Massen in einem Motor, insbesondere bei Pleuel, Kurbel- und Nockenwellen und/oder Ventilteilen, reduziert werden. Vorteile ergeben sich hinsichtlich verbesserter Motordynamik, geringerer Geräuschemission, Entfall der Lancester-Ausgleichswelle sowie Kraftstoffeinsparung.With Help of the method according to the invention can in Compared to steel components up to 35% or more of the oscillating Masses in an engine, in particular at connecting rods, crankshafts and camshafts and / or Valve parts, to be reduced. Benefits arise with regard to improved engine dynamics, lower noise emission, elimination of the Lancester balance shaft and Fuel economy.
Als Ti, Zr, Hf-Materialien sind erfindungsgemäß geeignet Titan als solches, Zirconium als solches, Hafnium als solches; bevorzugt jedoch Legierungen enthaltend Ti und/oder Zr und/oder Hf zu 80 Gew.-% oder mehr, vorzugsweise 90 Gew.-%. Besonders bevorzugt sind jedoch Titan-Legierungen mit einem Anteil an 80 Gew.-% Titan, vorzugsweise 90 Gew.-% Titan. Zr und Hf können als weitere Nebenbestandteile in der Größenordnung 1-20 Gew.-%, vorzugsweise 5–15 Gew.-% enthalten sein. Ebenfalls können Beimengungen üblicher Metalle enthalten sein, wie Al, Si, Mg, Fe, Ni, Co, Mo, V oder anderer Leicht- und Schwermetalle. Weitere bevorzugte Legierungen sind Ti Al 6 V 4 oder Ti Al 6 Fe 2 Si, wie sie im Kraftfahrzeugbau zum Einsatz kommen.When Ti, Zr, Hf materials are suitable according to the invention titanium as such, Zirconium as such, hafnium as such; but prefers alloys containing Ti and / or Zr and / or Hf to 80 wt .-% or more, preferably 90% by weight. However, titanium alloys are particularly preferred with a Proportion of 80% by weight of titanium, preferably 90% by weight of titanium. Zr and Hf can as additional minor components in the order 1-20 wt .-%, preferably 5-15% by weight be included. Likewise Admixtures usual Metals may be included, such as Al, Si, Mg, Fe, Ni, Co, Mo, V or other light and heavy metals. Further preferred alloys are Ti Al 6 V 4 or Ti Al 6 Fe 2 Si, as used in automotive engineering.
Erfindungsgemäß werden α/β-Ti-Legierungen bzw. α/β-Ti enthaltende Materialien, die sowohl an hochfester, kubisch raumzentrierter β-Phase als auch an hexagonaler α-Phase mit hohem E-Modul verfügen, verwendet. Beim so genannten Hochtemperaturumformen werden mehr β-Phasen und beim Niedrigtemperaturumformen mehr α-Phasen gebildet. Erfindungsgemäß wird im α/β-Gebiet umgeformt und zwar beim Erwärmen 5–15°C vorzugsweise 8–10–12°C oberhalb der α/β-Phasengrenze. Bei reinem Titan geht beispielsweise bei 882,5°C α-Ti in β-Ti über (so genannte α/β-Phasengrenze), d.h. die Erwärmung sollte erfindungsgemäß bei 887–897°C erfolgen. Für Ti Al 6 V 4 oder Ti Al 6 Fe 2 Si liegt der entsprechende bevorzugte Erwärmungswert bei 975°C +15°C.According to the invention, α / β-Ti alloys or α / β-Ti containing Materials that can be used on high-strength, cubic body-centered β-phase as well at hexagonal α-phase have a high modulus of elasticity, uses. In so-called high-temperature forming, more β-phases and formed during low temperature forming more α-phases. According to the invention is transformed in the α / β-area and while heating 5-15 ° C, preferably 8-10-12 ° C above the α / β phase boundary. For pure titanium, for example, at 882.5 ° C, α-Ti changes to β-Ti (so-called α / β phase boundary), i.e. the warming should take place according to the invention at 887-897 ° C. For Ti Al 6 V 4 or Ti Al 6 Fe 2 Si is the corresponding preferred one heating value at 975 ° C + 15 ° C.
Die Erwärmungsdauer im besagten Temperaturbereich beträgt mindestens 20 Minuten bis 45 Minuten oder länger, vorzugsweise jedoch nicht länger als 1 Stunde.The heating time in said temperature range is at least 20 minutes to 45 minutes or more, but preferably no longer than 1 hour.
Hierdurch
wird beim Aufwärmen
die α-Niedrigtemperaturphase
durch die β-Hochtemperaturphase
derart durchsetzt, dass sich eine α/β-Webstruktur bzw. ein erfindungsgemäßer Verbundwerkstoff
ergibt (
Beschreibung der Figuren:description of the figures:
Claims (10)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10355892A DE10355892B4 (en) | 2003-11-29 | 2003-11-29 | Process for producing Ti, Zr, Hf-containing drop forgings |
PCT/EP2004/012952 WO2005052201A2 (en) | 2003-11-29 | 2004-11-16 | METHOD FOR THE PRODUCTION OF DROP FORGE PARTS CONTAINING Ti, Zr, Hf |
JP2006540282A JP2007512433A (en) | 2003-11-29 | 2004-11-16 | Manufacturing method of drop forged parts containing Ti, Zr, Hf |
US10/580,896 US20070068608A1 (en) | 2003-11-29 | 2004-11-16 | Method for the production of drop forge parts containing ti, zr, hf |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10355892A DE10355892B4 (en) | 2003-11-29 | 2003-11-29 | Process for producing Ti, Zr, Hf-containing drop forgings |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10355892A1 true DE10355892A1 (en) | 2005-06-30 |
DE10355892B4 DE10355892B4 (en) | 2007-01-04 |
Family
ID=34625400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10355892A Expired - Fee Related DE10355892B4 (en) | 2003-11-29 | 2003-11-29 | Process for producing Ti, Zr, Hf-containing drop forgings |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070068608A1 (en) |
JP (1) | JP2007512433A (en) |
DE (1) | DE10355892B4 (en) |
WO (1) | WO2005052201A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013203560B4 (en) * | 2013-03-01 | 2020-06-18 | Ford Global Technologies, Llc | Internal combustion engine with a balance weight arranged on the crankshaft and serving as an unbalance and method for producing the crankshaft |
CN104439981B (en) * | 2014-12-11 | 2017-05-10 | 西部钛业有限责任公司 | Manufacturing method of TA6 titanium alloy large-width thin plate |
CN105478521B (en) * | 2016-01-21 | 2017-11-21 | 南京佑天金属科技有限公司 | The process that hafnium filament is drawn |
CN110076533B (en) * | 2019-05-24 | 2021-11-02 | 宝鸡拓普达钛业有限公司 | Preparation method of TC4 step shaft applied to petroleum lubricator |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474631A (en) * | 1946-06-27 | 1949-06-28 | Cleveland H Jelley | Internal-combustion engine |
US4055975A (en) * | 1977-04-01 | 1977-11-01 | Lockheed Aircraft Corporation | Precision forging of titanium |
JPS62170464A (en) * | 1986-01-22 | 1987-07-27 | Hitachi Ltd | Manufacture of moving vane for turbine |
DE3615425A1 (en) * | 1986-05-07 | 1987-11-12 | Thyssen Edelstahlwerke Ag | PERFORMANCE OF MACHINE ELEMENTS FROM TECHNICAL TITANIUM ALLOYS THROUGH SURFACE COATING IN THE PLASMA OF GLIMMENT CHARGES |
DE3622433A1 (en) * | 1986-07-03 | 1988-01-21 | Deutsche Forsch Luft Raumfahrt | METHOD FOR IMPROVING THE STATIC AND DYNAMIC MECHANICAL PROPERTIES OF ((ALPHA) + SS) TIT ALLOYS |
JPS6468454A (en) * | 1987-09-08 | 1989-03-14 | Honda Motor Co Ltd | Method for removing strain of titanium or titanium alloy at the time of forging |
DE4318424C2 (en) * | 1993-06-03 | 1997-04-24 | Max Planck Inst Eisenforschung | Process for the production of moldings from alloys based on titanium-aluminum |
JPH0890074A (en) * | 1994-09-20 | 1996-04-09 | Nippon Steel Corp | Method for straightening titanium and titanium alloy wire |
DE10150674B4 (en) * | 2000-12-15 | 2008-02-07 | Leistritz Ag | Process for the production of heavy-duty components made of TiAl alloys |
-
2003
- 2003-11-29 DE DE10355892A patent/DE10355892B4/en not_active Expired - Fee Related
-
2004
- 2004-11-16 WO PCT/EP2004/012952 patent/WO2005052201A2/en active Application Filing
- 2004-11-16 JP JP2006540282A patent/JP2007512433A/en not_active Abandoned
- 2004-11-16 US US10/580,896 patent/US20070068608A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2007512433A (en) | 2007-05-17 |
WO2005052201A3 (en) | 2006-02-09 |
WO2005052201A2 (en) | 2005-06-09 |
DE10355892B4 (en) | 2007-01-04 |
US20070068608A1 (en) | 2007-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8339 | Ceased/non-payment of the annual fee |