CN103406761A - TC4 titanium alloy pipe ball head heat flow forming method - Google Patents
TC4 titanium alloy pipe ball head heat flow forming method Download PDFInfo
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- CN103406761A CN103406761A CN2013103057844A CN201310305784A CN103406761A CN 103406761 A CN103406761 A CN 103406761A CN 2013103057844 A CN2013103057844 A CN 2013103057844A CN 201310305784 A CN201310305784 A CN 201310305784A CN 103406761 A CN103406761 A CN 103406761A
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Abstract
The invention provides a TC4 titanium alloy pipe ball head heat flow forming method which includes the following steps that firstly, a TC4 titanium alloy pipe is taken and the two end portions of the TC4 titanium alloy pipe are cut; secondly, a spray gun is used for heating one end of the TC4 titanium alloy pipe and the temperature of the spray gun is controlled between 650 DEG C and 850 DEG C; thirdly, one end of the TC4 titanium alloy pipe is formed by undergoing heat flow forming for two times to four times, so that the end portion of the TC4 titanium alloy pipe forms a taper angle; fourthly, the taper-shaped end of the TC4 titanium alloy pipe is milled to be flat; fifthly, a ball head of the end of the TC4 titanium alloy pipe is formed by undergoing heat flow forming for one time to two times; sixthly, steps from the second step to the fifth step are repeated so as to form a ball head at the other end of the TC4 titanium alloy pipe. With the TC4 titanium alloy pipe ball head heat flow forming method, the TC4 titanium alloy pipe will not fracture when being formed under a high-temperature and high-plastic state, the forming quality of the pipe is high and safety is high.
Description
Technical field
The present invention relates to space flight or aviation plastic forming process technical field, be specifically related to an a kind of TC4 titanium alloy tube bulbec hot spinning method.
Background technology
The carrier rocket inter-tank section is inverted cone-shaped structure, adopts lightweight, high-strength TC4 titanium alloy material.This inter-tank section agent structure by 24 TC4 titanium alloy tube sub-connections on the upper and lower end frame.
At present, as shown in Figure 1, a TC4 titanium alloy tube bulbec forming technology is: heating in air furnace---stamping.When the shortcoming of this process forming was part punching, temperature was cooling fast, and plasticity obviously reduces, and causes the part problems of crack.And the TC4 material require at high temperature is shaped, be not suitable for adopting former process forming,
Summary of the invention
The object of the present invention is to provide a kind of method that adopts hot spinning shaping TC4 titanium alloy tube bulbec head, it can solve existing constant temperature and part problem of Cracking, meets model structural strength and lighting demand.
Realize the technical scheme of the object of the invention: an a kind of TC4 titanium alloy tube bulbec hot spinning method, it comprises the steps:
(1) get TC4 titanium alloy pipe, car is cut the both ends of TC4 titanium alloy pipe;
(2) then, heat with the end of spray gun to TC4 titanium alloy pipe, temperature is controlled at 650 ℃～850 ℃, and carries out temperature detection with infrared thermometer, guarantees the uniformity of TC4 titanium alloy pipe temperature in forming process;
(3) 2～4 passage heat are revolved an end of forming step (2) gained TC4 titanium alloy pipe, make the end of TC4 titanium alloy pipe form cone angle, and every time deflection is 20～40%; This heat is revolved to be shaped and is adopted necking in spindown technique, and feed speed is 130～160mm/min, and the speed of mainshaft is 400～650 rev/mins;
(4) mill the cone-shaped end of the TC4 titanium alloy pipe of step (3) gained flat;
(5) 1～2 passage heat are revolved this end bulb of forming step (4) gained TC4 titanium alloy pipe, and every time deflection is 10～30%; This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 110～140mm/min, and the speed of mainshaft is 350～500 rev/mins;
(6) repeating step (2) to (5) is shaped the other end bulb of TC4 titanium alloy pipe.
An a kind of TC4 titanium alloy tube bulbec hot spinning method as above, it is 10～12 ° that the end of the described TC4 titanium alloy of its step (3) pipe forms cone angle, every time deflection is 25～35%.
An a kind of TC4 titanium alloy tube bulbec hot spinning method as above, it is 15～25% that the described heat of its step (5) is revolved the shaping deflection.
Effect of the present invention is: adopting the inventive method, the process of a TC4 titanium alloy tube bulbec hot-spinning reducing is the diminish rewinding process in footpath of large footpath, and wall thickness thickens, and intensity and rigidity increase; And the TC4 titanium alloy is shaped and can not produce cracking at high temperature high-ductility state, the Tube Forming quality is high; Without the artificial transfer of hot part, safe in forming process.
The accompanying drawing explanation
Fig. 1 is the TC4 titanium alloy tube bulbec head of existing hot-pressing strip overlap;
Fig. 2 is hot spinning TC4 titanium alloy tube bulbec head of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, an a kind of TC4 titanium alloy tube bulbec hot spinning method of the present invention is further described.
Embodiment 1
As shown in Figure 2, an a kind of TC4 titanium alloy tube bulbec hot spinning method of the present invention, it comprises the steps:
(1) get TC4 titanium alloy pipe, car is cut the both ends of TC4 titanium alloy pipe.
(2) then, heat with the end of spray gun to TC4 titanium alloy pipe, for obtaining higher plasticity, simultaneously can obtain desirable microscopic structure again, temperature is controlled at 750 ℃, and carries out temperature detection with infrared thermometer, guarantees the uniformity of TC4 titanium alloy pipe temperature in forming process.
(3) 3 passage heat are revolved an end of the TC4 titanium alloy pipe of forming step (2) gained, make the end of TC4 titanium alloy pipe form cone angle, and wherein cone angle is 10 ° (semi-cone angle is 5 °), and every time deflection is 30%.This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 140mm/min, and the speed of mainshaft is 550 rev/mins.In the present invention, from TC4 titanium alloy pipe profile, its end diameter diminishes, so its spinning process should adopt necking in spindown.Necking in spindown is to move back and forth by the track of spinning roller along the working position regulation, progressively undergauge.By determining reasonable spinning passage and deflection, spinning spare appearance and size and spinning quality have been guaranteed.
(4) mill the cone-shaped end of the TC4 titanium alloy pipe of step (3) gained flat.
(5) 2 passage heat are revolved this end bulb of forming step (4) gained TC4 titanium alloy pipe, and every time deflection is 20%; This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 120mm/min, and the speed of mainshaft is 400 rev/mins.
(6) repeating step (2) to (5) is shaped the other end bulb of TC4 titanium alloy pipe.
Embodiment 2
As shown in Figure 2, an a kind of TC4 titanium alloy tube bulbec hot spinning method of the present invention, it comprises the steps:
(1) get TC4 titanium alloy pipe, car is cut the both ends of TC4 titanium alloy pipe.
(2) then, heat with the end of spray gun to TC4 titanium alloy pipe, for obtaining higher plasticity, simultaneously can obtain desirable microscopic structure again, temperature is controlled at 650 ℃, and carries out temperature detection with infrared thermometer, guarantees the uniformity of TC4 titanium alloy pipe temperature in forming process.
(3) 4 passage heat are revolved an end of the TC4 titanium alloy pipe of forming step (2) gained, make the end of TC4 titanium alloy pipe form cone angle, and wherein cone angle is 10 ° (semi-cone angle is 5 °), and every time deflection is 20%.This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 130mm/min, and the speed of mainshaft is 400 rev/mins.
(4) mill the cone-shaped end of the TC4 titanium alloy pipe of step (3) gained flat.
(5) 2 passage heat are revolved this end bulb of forming step (4) gained TC4 titanium alloy pipe, and every time deflection is 10%; This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 110mm/min, and the speed of mainshaft is 350 rev/mins.
(6) repeating step (2) to (5) is shaped the other end bulb of TC4 titanium alloy pipe.
Embodiment 3
As shown in Figure 2, an a kind of TC4 titanium alloy tube bulbec hot spinning method of the present invention, it comprises the steps:
(1) get TC4 titanium alloy pipe, car is cut the both ends of TC4 titanium alloy pipe.
(2) then, heat with the end of spray gun to TC4 titanium alloy pipe, for obtaining higher plasticity, simultaneously can obtain desirable microscopic structure again, temperature is controlled at 850 ℃, and carries out temperature detection with infrared thermometer, guarantees the uniformity of TC4 titanium alloy pipe temperature in forming process.
(3) 2 passage heat are revolved an end of the TC4 titanium alloy pipe of forming step (2) gained, make the end of TC4 titanium alloy pipe form cone angle, and wherein cone angle is 12 ° (semi-cone angle is 6 °), and every time deflection is 40%.This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 160mm/min, and the speed of mainshaft is 650 rev/mins.
(4) mill the cone-shaped end of the TC4 titanium alloy pipe of step (3) gained flat.
(5) 1 passage heat are revolved this end bulb of forming step (4) gained TC4 titanium alloy pipe, and deflection is 30%; This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 140mm/min, and the speed of mainshaft is 500 rev/mins.
(6) repeating step (2) to (5) is shaped the other end bulb of TC4 titanium alloy pipe.
Claims (3)
1. TC4 titanium alloy tube bulbec hot spinning method, it is characterized in that: the method comprises the steps:
(1) get TC4 titanium alloy pipe, car is cut the both ends of TC4 titanium alloy pipe;
(2) then, heat with the end of spray gun to TC4 titanium alloy pipe, temperature is controlled at 650 ℃～850 ℃, and carries out temperature detection with infrared thermometer, guarantees the uniformity of TC4 titanium alloy pipe temperature in forming process;
(3) 2～4 passage heat are revolved an end of forming step (2) gained TC4 titanium alloy pipe, make the end of TC4 titanium alloy pipe form cone angle, and every time deflection is 20～40%; This heat is revolved to be shaped and is adopted necking in spindown technique, and feed speed is 130～160mm/min, and the speed of mainshaft is 400～650 rev/mins;
(4) mill the cone-shaped end of the TC4 titanium alloy pipe of step (3) gained flat;
(5) 1～2 passage heat are revolved this end bulb of forming step (4) gained TC4 titanium alloy pipe, and every time deflection is 10～30%; This heat is revolved forming technology and is adopted necking in spindown, and feed speed is 110～140mm/min, and the speed of mainshaft is 350～500 rev/mins;
(6) repeating step (2) to (5) is shaped the other end bulb of TC4 titanium alloy pipe.
2. an a kind of TC4 titanium alloy tube bulbec hot spinning method according to claim 1 is characterized in that: it is 10～12 ° that the end of the described TC4 titanium alloy of step (3) pipe forms cone angle, and every time deflection is 25～35%.
3. an a kind of TC4 titanium alloy tube bulbec hot spinning method according to claim 1 and 2, it is characterized in that: it is 15～25% that the described heat of step (5) is revolved the shaping deflection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310305784.4A CN103406761B (en) | 2013-07-19 | 2013-07-19 | TC4 titanium alloy tube bulbec feverish sensation in the head spin-on process |
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| CN201310305784.4A CN103406761B (en) | 2013-07-19 | 2013-07-19 | TC4 titanium alloy tube bulbec feverish sensation in the head spin-on process |
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| CN103406761B CN103406761B (en) | 2016-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706716A (en) * | 2014-01-09 | 2014-04-09 | 哈尔滨工业大学 | Method for hot-spinning accurate temperature control of titanium alloy thin wall component |
| CN105033044A (en) * | 2015-07-29 | 2015-11-11 | 兴化市阳光汽配厂 | Stamping preparation method for tie rod ball for truck |
| CN112246947A (en) * | 2020-09-28 | 2021-01-22 | 湖北三江航天江北机械工程有限公司 | Forming and processing method of titanium alloy high-pressure seamless gas cylinder for ships |
| CN115318924A (en) * | 2022-10-17 | 2022-11-11 | 四川大学 | Titanium alloy seamless gas cylinder spinning equipment and spinning forming method thereof |
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| US2406059A (en) * | 1943-06-10 | 1946-08-20 | Linde Air Prod Co | Process of spinning hollow articles |
| JPS5933041A (en) * | 1982-08-17 | 1984-02-22 | Showa Mfg Co Ltd | Bottom forming of cylinder for buffer |
| JPH05123784A (en) * | 1991-08-30 | 1993-05-21 | Atsugi Unisia Corp | Method for closing pipe end |
| CN101092015A (en) * | 2007-08-09 | 2007-12-26 | 航天材料及工艺研究所 | Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision |
| CN101480683A (en) * | 2009-01-15 | 2009-07-15 | 江西昌河航空工业有限公司 | Method for processing spherical closing-in of thin-wall alloy steel delivery tube and special-purpose hob cutter |
| CN101704035A (en) * | 2009-11-26 | 2010-05-12 | 北京有色金属研究总院 | Processing method of high-strength titanium alloy thin-walled tube stock |
| CN102489617A (en) * | 2011-12-02 | 2012-06-13 | 王平安 | Metal tube seal process |
| CN103182457A (en) * | 2011-12-27 | 2013-07-03 | 上海航天精密机械研究所 | High-speed spinning sealing process method for pipe port |
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2013
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US2406059A (en) * | 1943-06-10 | 1946-08-20 | Linde Air Prod Co | Process of spinning hollow articles |
| JPS5933041A (en) * | 1982-08-17 | 1984-02-22 | Showa Mfg Co Ltd | Bottom forming of cylinder for buffer |
| JPH05123784A (en) * | 1991-08-30 | 1993-05-21 | Atsugi Unisia Corp | Method for closing pipe end |
| CN101092015A (en) * | 2007-08-09 | 2007-12-26 | 航天材料及工艺研究所 | Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision |
| CN101480683A (en) * | 2009-01-15 | 2009-07-15 | 江西昌河航空工业有限公司 | Method for processing spherical closing-in of thin-wall alloy steel delivery tube and special-purpose hob cutter |
| CN101704035A (en) * | 2009-11-26 | 2010-05-12 | 北京有色金属研究总院 | Processing method of high-strength titanium alloy thin-walled tube stock |
| CN102489617A (en) * | 2011-12-02 | 2012-06-13 | 王平安 | Metal tube seal process |
| CN103182457A (en) * | 2011-12-27 | 2013-07-03 | 上海航天精密机械研究所 | High-speed spinning sealing process method for pipe port |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706716A (en) * | 2014-01-09 | 2014-04-09 | 哈尔滨工业大学 | Method for hot-spinning accurate temperature control of titanium alloy thin wall component |
| CN103706716B (en) * | 2014-01-09 | 2015-08-19 | 哈尔滨工业大学 | A kind of titanium alloy thin wall component hot spinning accurate temperature controlling method |
| CN105033044A (en) * | 2015-07-29 | 2015-11-11 | 兴化市阳光汽配厂 | Stamping preparation method for tie rod ball for truck |
| CN112246947A (en) * | 2020-09-28 | 2021-01-22 | 湖北三江航天江北机械工程有限公司 | Forming and processing method of titanium alloy high-pressure seamless gas cylinder for ships |
| CN115318924A (en) * | 2022-10-17 | 2022-11-11 | 四川大学 | Titanium alloy seamless gas cylinder spinning equipment and spinning forming method thereof |
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| CN103406761B (en) | 2016-08-10 |
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