CN103521670A - Method for improving titanium alloy swaging forged structure homogeneity - Google Patents
Method for improving titanium alloy swaging forged structure homogeneity Download PDFInfo
- Publication number
- CN103521670A CN103521670A CN201310460363.9A CN201310460363A CN103521670A CN 103521670 A CN103521670 A CN 103521670A CN 201310460363 A CN201310460363 A CN 201310460363A CN 103521670 A CN103521670 A CN 103521670A
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- section
- cross
- square cross
- forging
- 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
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a method for improving the titanium alloy swaging forged structure homogeneity. The method includes the steps of (1) placing titanium alloy which is obtained through conventional upsetting swaging forging and provided with the square cross section on an operating platform, enabling the length direction of the titanium alloy with the square cross section to be parallel to the axial direction of an upper flat anvil, overall flattening the titanium alloy with the square cross section in the diagonal direction of the square cross section, and obtaining titanium alloy with the hexagon cross section, (2) turning over the titanium alloy with the hexagon cross section by 90 degrees to carry out overall flattening, and obtaining titanium alloy with the octagon cross section, and (3) repeating the step (2) on the titanium alloy with the octagon cross section until a titanium alloy forge piece with the square cross section and the size same as the size of the titanium alloy with the square cross section is obtained. According to the method, large plastic deformation is carried out on the cross section of a material in different directions, the cross inhomogeneous deformation caused by swaging deformation in a single direction is improved, and therefore the aim that structures of various portions of the forge piece are homogeneous is achieved.
Description
Technical field
The invention belongs to materials processing technology field, be specifically related to a kind of method that structural homogenity is forged in titanium alloy pulling of improving.
Background technology
Be subject to the restriction of titanium alloy physical property and melting technique, forging is still in titanium alloy processing and uses the most extensively and effective method, and the method not only can directly forge into desired workpiece shape, can also optimize heterogeneous microstructure, eliminate the defects such as cast condition is loose, improve the mechanical property of material.
For forging, to be out of shape more evenly, local deformation is poor less, and tissue is just more even, so the deformation uniformity of forging is an important indicator weighing forging quality.Forging deformation uniformity is better, and the distortion of its each several part is more tending towards evenly, being conducive to produce uniform interior tissue, improves the performance of forging.Pulling technique is the most basic operation of titanium alloy open die forging, and single direction pulling forging deformation easily causes cross inhomogeneous deformation, and as-cast structure fragmentation is insufficient and have heredity, causes structural heterogenity problem in finished product forging to be difficult to solve.
In recent years, the hammered work person of various countries forges the uniformity of tissue and has carried out a large amount of exploratory developments in order to improve, on the basis of flat-anvils stretching research, a series of new pulling methods have successively been proposed, for example FM forging method, WHF forging method, KD forging method, SUF forging method, TER forging method, JTS forging method, FML forging method and AVD forging method, these all by change, pull out anvil shape and process conditions realize.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and a kind of method that structural homogenity is forged in titanium alloy pulling of improving is provided.The method is by arranging length direction and the upper flat anvil axially parallel with the titanium alloy in square cross section, along the diagonal in square cross section, carry out integral body and flatten into hexagonal cross-section, then overturn 90 ° and along another diagonal in square cross section, carry out integral body again and flatten, so repeatedly flatten until again become square cross section, the different directions of material cross-section is implemented to large plastic deformation, improve the cross inhomogeneous deformation situation that single direction pulling distortion causes, thereby reach the object of each position even tissue of forging.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method of improving titanium alloy pulling forging structural homogenity, it is characterized in that, and the method comprises the following steps:
A kind of above-mentioned method of improving titanium alloy pulling forging structural homogenity, the length described in step 1 with the titanium alloy in square cross section is less than the length of flat anvil.
A kind of above-mentioned method of improving titanium alloy pulling forging structural homogenity, described in step 1, the whole drafts flattening is 30%～50%.
A kind of above-mentioned method of improving titanium alloy pulling forging structural homogenity, described in step 2, the whole drafts flattening is 30%～50%.
The present invention compared with prior art has the following advantages:
1, the present invention is by arranging length direction and the upper flat anvil axially parallel with the titanium alloy in square cross section, along the diagonal in square cross section, carry out integral body and flatten into hexagonal cross-section, then overturn 90 ° and along another diagonal in square cross section, carry out integral body again and flatten, so repeatedly flatten, until again become square cross section, the different directions of material cross-section is implemented to large plastic deformation, improve the cross inhomogeneous deformation situation that single direction pulling distortion causes, thereby reach the object of each position even tissue of forging.
2, method of the present invention is for improving between the cogging of beta-titanium alloy and middle each fire time the inhomogeneity forging mode of as-forged microstructure after jumping-up, pulling.
3, the inventive method processing technology is simple, easy to operate, does not need special installation.
4, the titanium alloy forging structural homogenity that adopts method of the present invention to forge is good, because process control difficulty is low, has promoted process stabilizing degree simultaneously.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is that the present invention has the titanium alloy in square cross section and the position relationship schematic diagram of upper flat anvil and operating platform.
Fig. 2 is the process flow diagram that titanium alloy pulling of the present invention is forged.
Fig. 3 is that the conventional titanium alloy jumping-up of embodiment 1 pulls out the macrostructure figure after the forging heat treatment of forging.
Fig. 4 is the macrostructure figure after the embodiment of the present invention 2 forging heat treatment of forging.
Fig. 5 is that the conventional titanium alloy jumping-up of embodiment 1 pulls out the mirco structure figure after the forging heat treatment of forging.
Fig. 6 is the mirco structure figure after the embodiment of the present invention 2 forging heat treatment of forging.
Description of reference numerals:
1-there is the titanium alloy in square cross section; 2-operating platform; 3-upper flat anvil.
The specific embodiment
Equipment: 2500T forging press, upper flat anvil size: 500mm(B) * 1200mm(L);
Raw material: Φ 310mm * 600mm TC18 titan alloy casting ingot, the production decision contrast before and after now the present invention being applied is as follows:
Conventional pulling forging method:
The titanium alloy H/D(ratio of height to diameter with square cross section prepared by the present embodiment)≤3, now can proceed Upsetting according to actual needs, also can proceed pulling distortion until finished product forging.
Forging method of the present invention is described according to embodiment 2 to embodiment 4, process chart as shown in Figure 2:
Titanium alloy forging H/D(ratio of height to diameter prepared by the present embodiment)≤3, now can proceed Upsetting according to actual needs, also can proceed pulling distortion until finished product forging.
Titanium alloy forging H/D(ratio of height to diameter prepared by the present embodiment)≤3, now can proceed Upsetting according to actual needs, also can proceed pulling distortion until finished product forging.
Embodiment 4
Titanium alloy forging H/D(ratio of height to diameter prepared by the present embodiment)≤3, now can proceed Upsetting according to actual needs, also can proceed pulling distortion until finished product forging.
The conventional forging forging in the forging that obtains and embodiment 2 that forges in embodiment 1 is carried out respectively to conventional heat treatment, then the forging after heat treatment is carried out to macrostructure observation and mirco structure observation, the results are shown in Figure 3 to Fig. 6, from figure, can obviously find out, adopting the forging mode of the present invention titanium alloy that pulling is forged to routine to carry out integral body flattens, the different directions of material cross-section is implemented to large plastic deformation, improve the cross inhomogeneous deformation situation that single direction pulling distortion causes, the titanium alloy forging structural homogenity of forging is all good, simultaneously because process control difficulty is low, promoted process stabilizing degree.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any restriction, every any simple modification of above embodiment being done according to invention technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (4)
1. improve titanium alloy pulling and forge a method for structural homogenity, it is characterized in that, the method comprises the following steps:
Step 1, the titanium alloy with square cross section (1) that conventional jumping-up pulling forging is obtained are placed on operating platform (2), make to have length direction and upper flat anvil (3) axially parallel of the titanium alloy (1) in square cross section, along the diagonal in described square cross section, the titanium alloy (1) with square cross section is carried out to integral body and flatten, obtain having the titanium alloy of hexagonal cross-section;
Step 2, after thering is 90 ° of the titanium alloy upsets of hexagonal cross-section described in step 1, carry out integral body flattening, obtain having the titanium alloy of octagonal cross-section;
Step 3, to thering is the titanium alloy repeating step two of octagonal cross-section described in step 2, until obtain cross section, be square, described in size and step 1, there is the measure-alike titanium alloy forging of titanium alloy (1) in square cross section.
2. a kind of method that structural homogenity is forged in titanium alloy pulling of improving according to claim 1, is characterized in that, the length described in step 1 with the titanium alloy (1) in square cross section is less than the length of flat anvil (3).
3. a kind of method that structural homogenity is forged in titanium alloy pulling of improving according to claim 1, is characterized in that, described in step 1, the whole drafts flattening is 30%～50%.
4. a kind of method that structural homogenity is forged in titanium alloy pulling of improving according to claim 1, is characterized in that, described in step 2, the whole drafts flattening is 30%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460363.9A CN103521670B (en) | 2013-09-29 | 2013-09-29 | A kind of method improving titanium alloy pulling forging structural homogenity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460363.9A CN103521670B (en) | 2013-09-29 | 2013-09-29 | A kind of method improving titanium alloy pulling forging structural homogenity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521670A true CN103521670A (en) | 2014-01-22 |
| CN103521670B CN103521670B (en) | 2016-03-23 |
Family
ID=49924225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310460363.9A Active CN103521670B (en) | 2013-09-29 | 2013-09-29 | A kind of method improving titanium alloy pulling forging structural homogenity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103521670B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938137A (en) * | 2014-04-08 | 2014-07-23 | 中国航空工业集团公司北京航空材料研究院 | Method for changing structure uniformity of large-specification titanium alloy bar |
| CN104073751A (en) * | 2014-03-11 | 2014-10-01 | 宁夏东方钽业股份有限公司 | Method for improving structural homogeneity of titanium alloy large-scale bar |
| CN104624899A (en) * | 2015-01-14 | 2015-05-20 | 无锡市派克重型铸锻有限公司 | Forging improving method of 200-kilogram-level TC4-DT titanium alloy |
| CN106311943A (en) * | 2015-06-30 | 2017-01-11 | 宝钢特钢有限公司 | Method for producing hexagonal forge pieces through rapid forging press |
| CN106391961A (en) * | 2016-11-29 | 2017-02-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Free forging method of TA12A square forged piece |
| CN107413998A (en) * | 2017-07-03 | 2017-12-01 | 西部超导材料科技股份有限公司 | A kind of preparation method of Nb47Ti alloys large scale rod bar |
| CN108057829A (en) * | 2017-12-14 | 2018-05-22 | 西安赛特思迈钛业有限公司 | A kind of forging method for improving titanium alloy forging stock structural homogenity |
| CN108465762A (en) * | 2018-06-21 | 2018-08-31 | 河南中原特钢装备制造有限公司 | A kind of forging method of efficient whole uniform compaction deformation |
| CN109550877A (en) * | 2018-12-14 | 2019-04-02 | 邢台德龙机械轧辊有限公司 | The pulling method of flat-die forging |
| CN111940654A (en) * | 2020-08-12 | 2020-11-17 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Method for improving and stabilizing flaw detection level of TC6 titanium alloy cake blank |
| CN112275828A (en) * | 2020-10-09 | 2021-01-29 | 中国航发北京航空材料研究院 | Upsetting-drawing deformation method for TB6 titanium alloy large-size bar |
| CN112536406A (en) * | 2020-11-25 | 2021-03-23 | 浙江天马轴承集团有限公司 | Forging drawing method for avoiding surface cracking |
| CN112658190A (en) * | 2021-02-24 | 2021-04-16 | 河南科技大学 | Steel ingot CWFF forging method and convex wide anvil |
| CN112893725A (en) * | 2020-12-29 | 2021-06-04 | 常州中钢精密锻材有限公司 | Method for improving surface quality of titanium alloy forging |
| CN113145778A (en) * | 2021-04-27 | 2021-07-23 | 西北有色金属研究院 | Cogging forging method for improving structural uniformity of beta titanium alloy |
| CN115156451A (en) * | 2022-06-17 | 2022-10-11 | 中国航发北京航空材料研究院 | Method for uniform deformation of structure of large-size titanium alloy bar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150231A (en) * | 1995-11-27 | 1997-06-10 | Daido Steel Co Ltd | Products through forging of ti alloy |
| CN101580923A (en) * | 2009-04-30 | 2009-11-18 | 上海桦厦实业有限公司 | Forging method for improving performance of TC4 titanium alloy cast ingot |
| CN102319845A (en) * | 2011-06-16 | 2012-01-18 | 南京迪威尔重型锻造股份有限公司 | Manufacturing process of forging stock of steel forging piece for oil extraction equipment in deep sea |
| CN102319849A (en) * | 2011-07-06 | 2012-01-18 | 中国第一重型机械股份公司 | The forging method that large-scale steel ingot directly pulls out in advance |
| CN102828135A (en) * | 2012-09-20 | 2012-12-19 | 江苏金源锻造股份有限公司 | Method for combined forging ZM8 high strength magnesium alloy |
-
2013
- 2013-09-29 CN CN201310460363.9A patent/CN103521670B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150231A (en) * | 1995-11-27 | 1997-06-10 | Daido Steel Co Ltd | Products through forging of ti alloy |
| CN101580923A (en) * | 2009-04-30 | 2009-11-18 | 上海桦厦实业有限公司 | Forging method for improving performance of TC4 titanium alloy cast ingot |
| CN102319845A (en) * | 2011-06-16 | 2012-01-18 | 南京迪威尔重型锻造股份有限公司 | Manufacturing process of forging stock of steel forging piece for oil extraction equipment in deep sea |
| CN102319849A (en) * | 2011-07-06 | 2012-01-18 | 中国第一重型机械股份公司 | The forging method that large-scale steel ingot directly pulls out in advance |
| CN102828135A (en) * | 2012-09-20 | 2012-12-19 | 江苏金源锻造股份有限公司 | Method for combined forging ZM8 high strength magnesium alloy |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073751A (en) * | 2014-03-11 | 2014-10-01 | 宁夏东方钽业股份有限公司 | Method for improving structural homogeneity of titanium alloy large-scale bar |
| CN104073751B (en) * | 2014-03-11 | 2016-08-17 | 宁夏东方钽业股份有限公司 | A kind of method improving titanium alloy large size bar structural homogenity |
| CN103938137B (en) * | 2014-04-08 | 2016-01-06 | 中国航空工业集团公司北京航空材料研究院 | A kind of method changing titanium alloy large size bar homogeneity of structure |
| CN103938137A (en) * | 2014-04-08 | 2014-07-23 | 中国航空工业集团公司北京航空材料研究院 | Method for changing structure uniformity of large-specification titanium alloy bar |
| CN104624899A (en) * | 2015-01-14 | 2015-05-20 | 无锡市派克重型铸锻有限公司 | Forging improving method of 200-kilogram-level TC4-DT titanium alloy |
| CN104624899B (en) * | 2015-01-14 | 2016-06-08 | 无锡市派克重型铸锻有限公司 | A kind of 200 feather weight TC4-DT titanium alloys change forging method |
| CN106311943A (en) * | 2015-06-30 | 2017-01-11 | 宝钢特钢有限公司 | Method for producing hexagonal forge pieces through rapid forging press |
| CN106391961A (en) * | 2016-11-29 | 2017-02-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Free forging method of TA12A square forged piece |
| CN106391961B (en) * | 2016-11-29 | 2019-09-24 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of open die forging method of TA12A square forging |
| CN107413998A (en) * | 2017-07-03 | 2017-12-01 | 西部超导材料科技股份有限公司 | A kind of preparation method of Nb47Ti alloys large scale rod bar |
| CN108057829B (en) * | 2017-12-14 | 2019-08-09 | 西安赛特思迈钛业有限公司 | A kind of forging method improving titanium alloy forging stock structural homogenity |
| CN108057829A (en) * | 2017-12-14 | 2018-05-22 | 西安赛特思迈钛业有限公司 | A kind of forging method for improving titanium alloy forging stock structural homogenity |
| CN108465762A (en) * | 2018-06-21 | 2018-08-31 | 河南中原特钢装备制造有限公司 | A kind of forging method of efficient whole uniform compaction deformation |
| CN109550877A (en) * | 2018-12-14 | 2019-04-02 | 邢台德龙机械轧辊有限公司 | The pulling method of flat-die forging |
| CN111940654A (en) * | 2020-08-12 | 2020-11-17 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Method for improving and stabilizing flaw detection level of TC6 titanium alloy cake blank |
| CN112275828A (en) * | 2020-10-09 | 2021-01-29 | 中国航发北京航空材料研究院 | Upsetting-drawing deformation method for TB6 titanium alloy large-size bar |
| CN112275828B (en) * | 2020-10-09 | 2022-04-19 | 中国航发北京航空材料研究院 | Upsetting-drawing deformation method for TB6 titanium alloy large-size bar |
| CN112536406A (en) * | 2020-11-25 | 2021-03-23 | 浙江天马轴承集团有限公司 | Forging drawing method for avoiding surface cracking |
| CN112893725A (en) * | 2020-12-29 | 2021-06-04 | 常州中钢精密锻材有限公司 | Method for improving surface quality of titanium alloy forging |
| CN112658190A (en) * | 2021-02-24 | 2021-04-16 | 河南科技大学 | Steel ingot CWFF forging method and convex wide anvil |
| CN113145778A (en) * | 2021-04-27 | 2021-07-23 | 西北有色金属研究院 | Cogging forging method for improving structural uniformity of beta titanium alloy |
| CN115156451A (en) * | 2022-06-17 | 2022-10-11 | 中国航发北京航空材料研究院 | Method for uniform deformation of structure of large-size titanium alloy bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103521670B (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103521670B (en) | A kind of method improving titanium alloy pulling forging structural homogenity | |
| CN106541064B (en) | A kind of hammer cogging process of super large-scale aluminium alloy ingot casting | |
| CN100584482C (en) | Rolling forming method of titanium alloy special-shaped ring forging | |
| CN104313524B (en) | A kind of processing method of TC4-DT titanium alloy rod bar | |
| CN103008377B (en) | A kind of novel magnesium alloy plate extruding formation process | |
| CN106269971B (en) | A kind of method that multidirectional compression torsion Compound Extrusion prepares micro-nano copper | |
| CN105483588B (en) | A kind of preparation method of High-strength pure titanium sheet material | |
| CN102978544A (en) | Method for multilevel creep age forming of Al-Zn-Mg-Cu series aluminium alloy plate | |
| CN105363823A (en) | Method for rolling aluminum alloy sheet forge pieces | |
| CN105537474A (en) | Manufacturing method for C-shaped section ring forge pieces made from Haynes 188 alloy | |
| CN103447433B (en) | A kind of preparation method of large scale magnesium alloy forging cake | |
| CN103769817A (en) | Large-diameter high-strength heat-resistant magnesium alloy thick-wall cylindrical workpiece forming process | |
| CN105397000A (en) | Rolling method of titanium alloy plate-shaped forgings | |
| CN104338882B (en) | The forming method of generation Ⅲ nuclear power cooling medium pump motor casing forging | |
| CN110878397B (en) | Texture uniformity control process for large-size magnesium alloy section | |
| CN105441713A (en) | A titanium alloy seamless tube and a manufacturing method thereof | |
| CN108796330A (en) | A kind of strong Mg-Gd-Y-Zr nanometers of isomery magnesium alloy preparation method of superelevation | |
| CN108237197B (en) | A kind of forging method improving the flaw detection of structural steel large-sized ring part | |
| CN103436827B (en) | A kind of thermal treatment process of large-size high-strength wrought magnesium alloy forging | |
| CN105734471B (en) | A kind of Ultra-fine grain copper material homogenizes preparation method | |
| CN108746440B (en) | A kind of high cylindrical forged piece segmentation milling method of large-sized high-temperature alloy | |
| CN105112827B (en) | Method for refining crystalline grains of wrought magnesium alloy at room temperature | |
| CN103469131B (en) | A kind of intermediate blank preparation method analyzing Magnesium Alloy performance inhomogeneities | |
| CN108774720A (en) | A kind of strong nanometer gradient magnesium alloy preparation method of superelevation | |
| CN107937848A (en) | A kind of preparation method of high-ductility AZ31 magnesium alloy plates and products thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220805 Address after: A-115-17, iChuangtu Zhongchuang Park, No. 14, Gaoxin 2nd Road, High-tech Zone, Xi'an City, Shaanxi Province 710075 Patentee after: Xi'an Qintai Intelligent Manufacturing Technology Co., Ltd. Address before: Weiyang road 710016 Shaanxi city of Xi'an province No. 96 Patentee before: NORTHWEST INSTITUTE FOR NONFERROUS METAL RESEARCH |
|
| TR01 | Transfer of patent right |