WO2005052201A2 - VERFAHREN ZUR HERSTELLUNG VON Ti, Zr, Hf ENTHALTENDEN GESENKSCHMIEDETEILEN - Google Patents
VERFAHREN ZUR HERSTELLUNG VON Ti, Zr, Hf ENTHALTENDEN GESENKSCHMIEDETEILEN Download PDFInfo
- Publication number
- WO2005052201A2 WO2005052201A2 PCT/EP2004/012952 EP2004012952W WO2005052201A2 WO 2005052201 A2 WO2005052201 A2 WO 2005052201A2 EP 2004012952 W EP2004012952 W EP 2004012952W WO 2005052201 A2 WO2005052201 A2 WO 2005052201A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drop
- weight
- titanium
- elasticity
- modulus
- 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.)
- Ceased
Links
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
Definitions
- the invention relates to a process for the production of drop forgings which essentially consist of titanium, zirconium hafnium or a corresponding alloy.
- the invention also relates to such drop forgings.
- Titanium in particular is an interesting light metal because it is almost 50% lighter than steel. Therefore, Ti, Zr, Hf components are particularly interesting in the motor vehicle sector if unsprung or rotating or oscillating masses are to be reduced.
- drop-forged parts made of bars, wires
- forged connecting rods, crankshafts and camshafts, or valve parts should be mentioned.
- titanium has 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) ,
- the modulus of elasticity of titanium alloys is only approx. 90 GPa, of steel approx. 210 GPa, of Al alloys approx. 70 GPa and of Mg alloys approx. 30 to 40 GPa.
- Drop forgings of titanium moving parts in engines can therefore only withstand low loads.
- DE 36 15 425 relates to a complex plasma coating process using titanium alloys on machine elements for hardening them.
- the object is achieved by a process in which materials or alloys containing 80% by weight or more of Ti and / or Zr and / or Hf, in or during the shaping, above 5-15 K of the a / ⁇ - Phase boundary heated and then cooled. Heating is preferably to be provided for about 20 to 60 minutes. This ensures that the modulus of elasticity and strength of the Ti, Zr, Hf materials used in and during the production of the drop forged part is increased.
- Suitable Ti, Zr, Hf materials according to the invention are titanium as such, zirconium as such, hafnium as such; however, preferably alloys containing Ti and / or Zr and / or Hf to 80 wt.% or more, preferably 90 wt.%, but particularly preferred are titanium alloys with a proportion of 80 wt.% titanium, preferably 90 wt.% titanium , Zr and Hf can be contained as additional minor components in the order of 1 to 20% by weight, preferably 5 to 15% by weight.
- Mixtures of conventional metals can also be present, such as Al, Si, Mg, Fe, Ni, Co, Mo, V or other light and heavy metals.
- Other preferred alloys are Ti Al 6 V 4 or Ti Al 6 Fe 2 Si, such as those used in motor vehicles.
- ⁇ // 3-Ti alloys or materials containing ci / ⁇ -Tl which have both high-strength, cubic, body-centered 3-phase and also hexagonal ⁇ -phase with a high modulus of elasticity. More / 3-phases are formed in so-called high-temperature forming and more ⁇ -phases in low-temperature forming.
- reshaping is carried out in the / ⁇ region, specifically when heating 5-15 ° C., preferably 8-10-12 ° C. above the a / ⁇ phase boundary.
- ⁇ -Ti changes into ⁇ -T ⁇ (so-called ci / ⁇ phase boundary), i.e.
- the heating should take place at 887-897 ° C.
- the corresponding preferred heating value is 975 ° C ⁇ 15 ° C.
- the heating time in said temperature range is at least 20 minutes to 45 minutes or longer, but preferably not longer than 1 hour.
- FIG. 1 shows an a / ⁇ weave structure or a composite material according to the invention.
- This temperature-dependent deformation area is to be selected very narrowly, or heating or forming temperatures of ⁇ 15 K, preferably ⁇ 5 K, are to be set in order to achieve the optimum forming range of 10 K above the a / ⁇ phase limit. If this area is left, there are either isolated a- or 3-phases in a ß- or ⁇ -basic matrix (FIG.
- the desired o * // 3 weave structure can be improved with regard to greater interweaving of the a and phases by slowly cooling in air or in a gas atmosphere after the shaping.
- the a / ß-eb structure is further penetrated by the ⁇ phase.
- an alternating arrangement of the cü phase and the ß phase in the material is achieved.
- a mixed phase is obtained in an ⁇ / web structure.
- Figure 1 a / ß weave structure (weave structure) of a Ti connecting rod forged at 975 ° C made of Ti AI 6 Fe2 Si (white a and gray jS lamellae).
- Figure 2 a / ß weave structure (weave structure) of a Ti connecting rod forged at 990 ° C made of Ti Al 6 Fe 2 Si with isolated white a islands.
- Optimal a / ß weave structure (weave structure) of a Ti connecting rod made of Ti AI 6 Fe2 Si (white a- and gray ß-lamellas) and then stress relieved at 650 ° C.
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
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006540282A JP2007512433A (ja) | 2003-11-29 | 2004-11-16 | Ti、Zr、Hfを含む落し鍛造部品の製造方法 |
| 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10355892A DE10355892B4 (de) | 2003-11-29 | 2003-11-29 | Verfahren zur Herstellung von Ti, Zr, Hf enthaltenden Gesenkschmiedeteilen |
| DE10355892.6 | 2003-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005052201A2 true WO2005052201A2 (de) | 2005-06-09 |
| WO2005052201A3 WO2005052201A3 (de) | 2006-02-09 |
Family
ID=34625400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/012952 Ceased WO2005052201A2 (de) | 2003-11-29 | 2004-11-16 | VERFAHREN ZUR HERSTELLUNG VON Ti, Zr, Hf ENTHALTENDEN GESENKSCHMIEDETEILEN |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070068608A1 (de) |
| JP (1) | JP2007512433A (de) |
| DE (1) | DE10355892B4 (de) |
| WO (1) | WO2005052201A2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439981A (zh) * | 2014-12-11 | 2015-03-25 | 西部钛业有限责任公司 | 一种ta6钛合金宽幅薄板的制备方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013203560B4 (de) * | 2013-03-01 | 2020-06-18 | Ford Global Technologies, Llc | Brennkraftmaschine mit auf der Kurbelwelle angeordnetem und als Unwucht dienendem Ausgleichsgewicht und Verfahren zur Herstellung der Kurbelwelle |
| CN105478521B (zh) * | 2016-01-21 | 2017-11-21 | 南京佑天金属科技有限公司 | 铪丝拉制的工艺方法 |
| CN110076533B (zh) * | 2019-05-24 | 2021-11-02 | 宝鸡拓普达钛业有限公司 | 一种应用于石油防喷管的tc4台阶轴的制备方法 |
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 (ja) * | 1986-01-22 | 1987-07-27 | Hitachi Ltd | タ−ビン動翼の製造法 |
| DE3615425A1 (de) * | 1986-05-07 | 1987-11-12 | Thyssen Edelstahlwerke Ag | Leistungssteigerung von maschinenelementen aus technischen titanlegierungen durch oberflaechenbeschichtung im plasma von glimmentladungen |
| DE3622433A1 (de) * | 1986-07-03 | 1988-01-21 | Deutsche Forsch Luft Raumfahrt | Verfahren zur verbesserung der statischen und dynamischen mechanischen eigenschaften von ((alpha)+ss)-titanlegierungen |
| 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 (de) * | 1993-06-03 | 1997-04-24 | Max Planck Inst Eisenforschung | Verfahren zur Herstellung von Formkörpern aus Legierungen auf Titan-Aluminium-Basis |
| JPH0890074A (ja) * | 1994-09-20 | 1996-04-09 | Nippon Steel Corp | チタンおよびチタン合金線材の矯直方法 |
| DE10150674B4 (de) * | 2000-12-15 | 2008-02-07 | Leistritz Ag | Verfahren zur Herstellung von hochbelastbaren Bauteilen aus TiAl-Legierungen |
-
2003
- 2003-11-29 DE DE10355892A patent/DE10355892B4/de not_active Expired - Fee Related
-
2004
- 2004-11-16 WO PCT/EP2004/012952 patent/WO2005052201A2/de not_active Ceased
- 2004-11-16 US US10/580,896 patent/US20070068608A1/en not_active Abandoned
- 2004-11-16 JP JP2006540282A patent/JP2007512433A/ja not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439981A (zh) * | 2014-12-11 | 2015-03-25 | 西部钛业有限责任公司 | 一种ta6钛合金宽幅薄板的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10355892A1 (de) | 2005-06-30 |
| DE10355892B4 (de) | 2007-01-04 |
| JP2007512433A (ja) | 2007-05-17 |
| WO2005052201A3 (de) | 2006-02-09 |
| US20070068608A1 (en) | 2007-03-29 |
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