CN109351898A - The production method of titanium alloy connecting rod - Google Patents
The production method of titanium alloy connecting rod Download PDFInfo
- Publication number
- CN109351898A CN109351898A CN201811324262.8A CN201811324262A CN109351898A CN 109351898 A CN109351898 A CN 109351898A CN 201811324262 A CN201811324262 A CN 201811324262A CN 109351898 A CN109351898 A CN 109351898A
- Authority
- CN
- China
- Prior art keywords
- temperature
- connecting rod
- forge
- forging
- blank
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
Abstract
The invention discloses the production methods of titanium alloy connecting rod, comprising the following steps: blanking；Manufacture blank is hot-forged using TC4 bar；Blocking；Forging temperature is 1050 DEG C, is successively formed blank by upset, elongation, upset again and rough forge using forging roll, the official written reply for needing the streamline of blank with connecting rod is consistent, and temperature is 950 DEG C after molding；Finish forge；The blank after rough forge is put into finish forge mould using 900 DEG C of residual temperature after the forging after rough forge and completes finish forge；Trimming；Finish forge base after finish forge is put into shaving die and carries out punching and edge-cutting；Correction；Forging stock after trimming is put into plate straightening mould punch forming, is corrected to connecting rod concentric reducer, completes forging stock forming process, about 700 DEG C of temperature after correction；Heat treatment；At a temperature of 750 DEG C -800 DEG C, keeps the temperature 0.5 hour to 4 hours water hardening and complete.The present invention is by the temperature control in blocking, finish forge, correction and heat treatment step, so that the final mechanicalness that titanium alloy connecting rod obtains rationally effectively is matched with the other part progress of engine.
Description
Technical field
The invention belongs to titanium alloy Machining of Connecting Rod technical fields, and in particular to the production method of titanium alloy connecting rod.
Background technique
Titanium alloy has high intensity, low-density, low elastic modulus, fabulous fatigue resistance and corrosion resistance.Titanium material is not
It can be broken, will not get rusty, will not all corrode under any atmospheric environment.Titanium alloy is that such resist is corroded, or even is not required to
Any spray painting is wanted to handle.
Titanium alloy density is 4.5g/cm3, is the 57% of steel density, and intensity is suitable with steel, replaces steel loss of weight 43%.Beauty
Army CH53 type heavy-lift helicopter uses titanium alloy 640kg (about the 10% of architecture quality), instead of 1.02t steel, loss of weight
380kg.Titanium alloy or the highest metal material of specific strength, equal strength replace aluminium alloy loss of weight 20-30%.And it can reduce
The movement inertia of high-speed moving part.The Ferrari 2003En20 type super car V12 engine of Italy is connected using titanium alloy
After bar, mobility enhances in boosting speed 3.9s up to 62km/h.Titanium alloy yield tensile ratio is 0.68-0.96, and carbon steel is
0.6-0.65, structural alloy steel 0.65-0.86, yield tensile ratio height improve reliability.Titanium alloy has lower cut compared with steel
Shear modulu.Public 2001LupoFSI type automobile uses the titanium alloy spring of TimetalLCB manufacture, with steel spring ratio, quality
Reduction 60%, volume-diminished 25%, and also it is more safe and reliable, the service life is long.The high/low temperature excellent in mechanical performance of titanium alloy ,-
253-550 DEG C of temperature range, obdurability with higher.
And steel has black brittleness, plasticity, toughness, elongation percentage reduce at low ambient temperatures, easily generation brittle fracture.Titanium closes
The most important characteristic of gold be it is corrosion-resistant good, titanium alloy linear expansion coefficient is small, and pure titanium is 8.2 × 10-6/K, about the 2/ of carbon steel
3, the 1/2 of stainless steel.
In the past, it is conventionally believed that titanium alloy is rare metal, reserves are few, and yield is unable to satisfy demand, in fact titanium
Alloy reserves be fully able to meet industry in large-scale application, content of the titanium in the earth's crust be 0.61%, than copper, nickel, tin, lead,
The general non-ferrous metal summation such as zinc is more than ten times more, and reserves are ten times of copper, and occupy generation in the titanium reserves of whole world China
Boundary first,
It has been recognized that titanium alloy is expensive, with the rapid development of titanium alloy, the reduction of titanium sponge price, titanium is closed
The price of gold has a sharp decline, and the price of titanium sponge in 2007 is 9.5 ten thousand/ton, the price report i.e. nearest by 2014
Valence is 50,000/ton or so.The coming years will realize as electrolysis method prepares titanium sponge and industrialize that the price of titanium sponge can be reduced to 3
Ten thousand/ton or so.
In recent years, the yield tensile ratio and corrosion resistance of titanium alloy Yin Qigao, the one kind for becoming internal combustion engine vehicle component material are new
Selection.
Titanium alloy has application in aviation, automobile and chemical field.Titanium alloy piston pin has light-weight, corrosion resistance
The advantages that excellent and antifatigue.
With the fast development of automobile manufacture industry, the light-weight design requirement of diesel locomotive, titanium alloy piston connection rod set
Substituting steel piston connection rod set becomes growth requirement.
Diesel locomotive steel pistons connection rod set mainly includes piston top, piston ring, piston pin, company in present rail traffic
Bar, connecting-rod bolts.The reason of titanium alloy connecting rod in the prior art is because of production method, can not often make titanium alloy connecting rod
Final mechanicalness is rationally effectively matched with the other part progress of engine.
The production method that we has developed a kind of titanium alloy connecting rod in order to solve problem above.
Summary of the invention
The object of the invention is that providing a kind of production method of titanium alloy connecting rod to solve the above-mentioned problems.
The present invention through the following technical solutions to achieve the above objectives:
The production method of titanium alloy connecting rod, comprising the following steps:
S1 blanking；Manufacture blank is hot-forged using TC4 bar；
S2 blocking；Forging temperature is 1050 DEG C, and using forging roll, by blank, successively process is upset, elongates, upset and thick again
Forging molding, the official written reply for needing the streamline of blank with connecting rod is consistent, and temperature is 950 DEG C after molding；
S3 finish forge；The blank after rough forge is put into finish forge mould using 900 DEG C of residual temperature after the forging after rough forge and completes finish forge；
S4 trimming；Finish forge base after finish forge is put into shaving die and carries out punching and edge-cutting；
S5 correction；Forging stock after trimming is put into plate straightening mould punch forming, is corrected to connecting rod concentric reducer, completes
Forging stock forming process, about 700 DEG C of temperature after correction；
S6 heat treatment；At a temperature of 750 DEG C -800 DEG C, keeps the temperature 0.5 hour to 4 hours water hardening and complete.
The beneficial effects of the present invention are:
The production method of titanium alloy connecting rod of the invention:
1, the titanium alloy connecting rod that the production method of middle titanium alloy connecting rod obtains through the invention, b/MPa >=996 σ, section are received
Shrinkage: ψ (%) >=25, elongation δ (%) >=10, hardness HRC30 or so；And pass through blocking, finish forge, school in the invention patent
It is just controlled with the temperature in heat treatment step, so that the other parts of final mechanicalness and engine that titanium alloy connecting rod obtains carry out
Rationally effective matching.
Specific embodiment
The invention will be further described below:
Embodiment 1, the production method of titanium alloy connecting rod, comprising the following steps:
S1 blanking；Manufacture blank is hot-forged using TC4 bar；
S2 blocking；Forging temperature is 1050 DEG C, and using forging roll, by blank, successively process is upset, elongates, upset and thick again
Forging molding, the official written reply for needing the streamline of blank with connecting rod is consistent, and temperature is 950 DEG C after molding；
S3 finish forge；The blank after rough forge is put into finish forge mould using 900 DEG C of residual temperature after the forging after rough forge and completes finish forge；
S4 trimming；Finish forge base after finish forge is put into shaving die and carries out punching and edge-cutting；
S5 correction；Forging stock after trimming is put into plate straightening mould punch forming, is corrected to connecting rod concentric reducer, completes
Forging stock forming process, about 700 DEG C of temperature after correction；
S6 heat treatment；At a temperature of 750 DEG C -800 DEG C, keeps the temperature 0.5 hour to 4 hours water hardening and complete.
Titanium alloy connecting rod of the present invention touches the mark after completing: b/MPa >=996 σ, the contraction percentage of area: ψ (%) >=25,
Elongation δ (%) >=10, hardness HRC30 or so；
Theoretically then TC4 titanium alloy material after water hardening, can achieve best by 850 DEG C, heat preservation 30 minutes
Comprehensive carry out performance.But since its intensity and comprehensive mechanical performance need and engine other parts connecting rod within the engine
Matching, therefore the connecting rod mechanical performance after specific heat treatment is needed with the mechanical performance of other mating parts to matching.And TC4 titanium alloy
The final mechanical performance of connecting rod is determined that phase transition temperature is 980-990 DEG C by α the and β phase constitution after being heat-treated, therefore according to connecting rod
The needs of comprehensive mechanical performance need as needed to make the appropriate adjustments temperature in heat treatment, if without particular/special requirement, it can be with
It is obtained within 0.5 hour -4 hours using 750 DEG C of -800 DEG C of heat preservations.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (1)
1. the production method of titanium alloy connecting rod, which comprises the following steps:
S1 blanking；Manufacture blank is hot-forged using TC4 bar；
S2 blocking；Forging temperature be 1050 DEG C, using forging roll by blank successively by it is upset, elongate, upset again and rough forge at
Type, the official written reply for needing the streamline of blank with connecting rod is consistent, and temperature is 950 DEG C after molding；
S3 finish forge；The blank after rough forge is put into finish forge mould using 900 DEG C of residual temperature after the forging after rough forge and completes finish forge；
S4 trimming；Finish forge base after finish forge is put into shaving die and carries out punching and edge-cutting；
S5 correction；Forging stock after trimming is put into plate straightening mould punch forming, is corrected to connecting rod concentric reducer, completes forging stock
Forming process, about 700 DEG C of temperature after correction；
S6 heat treatment；At a temperature of 750 DEG C -800 DEG C, keeps the temperature 0.5 hour to 4 hours water hardening and complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324262.8A CN109351898A (en) | 2018-11-08 | 2018-11-08 | The production method of titanium alloy connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324262.8A CN109351898A (en) | 2018-11-08 | 2018-11-08 | The production method of titanium alloy connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109351898A true CN109351898A (en) | 2019-02-19 |
Family
ID=65344646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324262.8A Pending CN109351898A (en) | 2018-11-08 | 2018-11-08 | The production method of titanium alloy connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109351898A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475200A (en) * | 2020-10-26 | 2021-03-12 | 芜湖万联新能源汽车零部件有限公司 | Super-upsetting-ratio vertical forging process for motor shaft |
| CN113941681A (en) * | 2021-08-31 | 2022-01-18 | 国家高速列车青岛技术创新中心 | Titanium alloy forging forming method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403622A (en) * | 2001-09-04 | 2003-03-19 | 北京航空材料研究院 | Titanium alloy quasi-beta forging process |
| JP2005068460A (en) * | 2003-08-20 | 2005-03-17 | Nkk Bars & Shapes Co Ltd | Nonrefining hot forged component having excellent low ductility and machinability, and method for manufacturing the component |
| CN101279354A (en) * | 2008-05-15 | 2008-10-08 | 宁夏天地奔牛实业集团有限公司 | Method for producing connecting pin forging |
| JP2011084767A (en) * | 2009-10-14 | 2011-04-28 | Honda Motor Co Ltd | Method of producing cracking connecting rod |
| CN105642809A (en) * | 2014-11-10 | 2016-06-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Design method of abrasion-resistant extrusion die for precisely forged blades |
| CN205342345U (en) * | 2015-12-01 | 2016-06-29 | 吉林大学 | Disconnected quenching and tempering forged steel connecting rod can rise |
-
2018
- 2018-11-08 CN CN201811324262.8A patent/CN109351898A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403622A (en) * | 2001-09-04 | 2003-03-19 | 北京航空材料研究院 | Titanium alloy quasi-beta forging process |
| JP2005068460A (en) * | 2003-08-20 | 2005-03-17 | Nkk Bars & Shapes Co Ltd | Nonrefining hot forged component having excellent low ductility and machinability, and method for manufacturing the component |
| CN101279354A (en) * | 2008-05-15 | 2008-10-08 | 宁夏天地奔牛实业集团有限公司 | Method for producing connecting pin forging |
| JP2011084767A (en) * | 2009-10-14 | 2011-04-28 | Honda Motor Co Ltd | Method of producing cracking connecting rod |
| CN105642809A (en) * | 2014-11-10 | 2016-06-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Design method of abrasion-resistant extrusion die for precisely forged blades |
| CN205342345U (en) * | 2015-12-01 | 2016-06-29 | 吉林大学 | Disconnected quenching and tempering forged steel connecting rod can rise |
Non-Patent Citations (3)
| Title |
|---|
| 中国锻压协会: "《特种合金及其锻造》", 31 October 2009, 国防工业出版社 * |
| 张志文: "《锻造工艺学》", 31 May 1983, 机械工业出版社 * |
| 王晓敏: "《工程材料学》", 31 October 1999, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475200A (en) * | 2020-10-26 | 2021-03-12 | 芜湖万联新能源汽车零部件有限公司 | Super-upsetting-ratio vertical forging process for motor shaft |
| CN113941681A (en) * | 2021-08-31 | 2022-01-18 | 国家高速列车青岛技术创新中心 | Titanium alloy forging forming method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2701774C2 (en) | Methods for production of forged products and other processed products | |
| CN109351898A (en) | The production method of titanium alloy connecting rod | |
| CN105671366B (en) | A kind of preparation method of high-strength high hard alloy | |
| CN114086049B (en) | 2.0GPa grade CoCrNi-based medium entropy alloy with ultrahigh yield strength and plasticity and preparation method thereof | |
| CN105088012B (en) | Titanium alloy piston connection rod set and process on application with internal combustion engines car | |
| CN107254603A (en) | High intensity α/β titanium alloy fastener and fastener blank | |
| WO2017105290A3 (en) | Method for making blanks from alloys based on titanium intermetallic compound with ortho-phase | |
| CN102936673A (en) | Titanium alloy for spring parts and preparation method of alloy | |
| CN104404414A (en) | 7075 aluminum alloy plate creep age forming method | |
| US20100329877A1 (en) | Method for producing a forging from a gamma titanium aluminum-based alloy | |
| CN1807009A (en) | Method for forging combined forged steel coupler yoke for railway vehicles | |
| CN103276242A (en) | Ultrahigh-strength titanium alloy and preparation method thereof | |
| CN1651178A (en) | Cored welding wire for lifting welding joint fatigue performance | |
| CN103350179A (en) | Forging forming method of low-pressure turbine shaft made of C250 maraging steel | |
| CN202140397U (en) | High anti-fatigue bolt | |
| CN106319282B (en) | A kind of low cost, high-ductility, seawater corrosion resistance titanium alloy | |
| US20150030496A1 (en) | Aluminum alloy wire and wire assembly parts | |
| CN103008995A (en) | Method for forming high-strength titanium alloy gas cylinder for aviation fuel | |
| CN108796303B (en) | High-strength fatigue-resistant titanium alloy rod wire and preparation method thereof | |
| CN102994906B (en) | A kind of method of ball valve body | |
| CN107234192B (en) | A kind of profiled-cross-section titanium alloy wire materials spring machining process | |
| CN111020423A (en) | Light ultrahigh-strength aluminum alloy nut and aluminum alloy material | |
| CN104275999A (en) | Material for manufacturing automobile leaf springs and method of manufacturing automobile leaf springs therewith | |
| CN107904441B (en) | Titanium alloy and preparation method thereof | |
| RU2690257C1 (en) | Titanium-based alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
|
| RJ01 | Rejection of invention patent application after publication |