CN101462225B - Technique for processing honing tube - Google Patents
Technique for processing honing tube Download PDFInfo
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- CN101462225B CN101462225B CN2009100208954A CN200910020895A CN101462225B CN 101462225 B CN101462225 B CN 101462225B CN 2009100208954 A CN2009100208954 A CN 2009100208954A CN 200910020895 A CN200910020895 A CN 200910020895A CN 101462225 B CN101462225 B CN 101462225B
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Abstract
The invention relates to a processing technique for a honing pipe in the fields of aerospace and pressure machinery and the like, in particular to the processing technique for the honing pipe with the tensile strength of not less than 1,140 MPa, the yield strength of not less than 1,030 MPa, the tensile stretch of not less than 16 percent and the specific elongation of not less than 38 percent, and higher requirement on the processing precision. The adopted process is to select a TC4 titanium alloy bar material with proper dimension to finish the processing of the honing pipe with the stated dimension and requirements through the steps of straightening, boring deep holes, honing, turning, polishing and the like according to the processes of roughing, open die forging and heat treatment. The processing technique is simple and efficient with low cost, and satisfies the use requirements on high-performance honing pipes in the fields of aerospace and pressure machinery and the like in China.
Description
Technical field
The present invention relates to a kind of processing technology field of honing tube, especially tensile strength is not less than 1140Mpa, yield strength and is not less than that 1030Mpa, percentage elongation are not less than 16%, percentage elongation is not less than 38%, and to the processing technology field of the higher honing tube of honing tube requirement on machining accuracy.
Background technology
In fields such as Aero-Space such as undercarriage, oil cylinder, press, often use honing tube at present, especially the mechanical performance of employed honing tube and endoporus precision etc. require comparatively strict in important spare parts such as undercarriage, wherein the requirement of part honing tube is: tensile strength is not less than 1140MPa, yield strength is not less than 1030MPa, percentage elongation is not less than 16%, percentage elongation is not less than 38%, and higher to the honing tube requirement on machining accuracy.Conventional manufacture method is after bar such as common titanium, steel or tubing being adopted machining process such as hubbing be processed into the appearance and size tubing of requirement, the method that re-uses the cutting of water under high pressure or diamond cutter is made honing tube after the endoporus of tubing is processed, but the honing tube of making can't reach the mechanical performance and the requirement on machining accuracy of above-mentioned honing tube at all simultaneously, general use can only be satisfied, the instructions for use of technical fields such as China's Aero-Space, press can't be satisfied.
Summary of the invention
The processing technology that provides a kind of honing tube to be solved by this invention, especially tensile strength is not less than 1140MPa, and yield strength is not less than 1030MPa, and percentage elongation is not less than 16%, percentage elongation is not less than 38%, and the honing tube processing technology higher to the honing tube requirement on machining accuracy.Manufacturing process is simply efficient, and the mechanical performance of the finished product honing tube of manufacturing and machining accuracy can satisfy above-mentioned specification requirement simultaneously, fully satisfy the technology instructions for use in high-end use fields such as Aero-Space.
The present invention is for solving the problems of the technologies described above, and the technical scheme of employing is:
The processing technology step that realizes the honing tube process is:
A) select materials: the metal material bar of selecting suitable dimension for use is as the raw bar material of making honing tube, and the metal material bar can be selected the TC4 titanium alloy rod bar for use;
B) cogging, open die forging and Technology for Heating Processing: adopt cogging, open die forging and Technology for Heating Processing to process to fuel rod, Technology for Heating Processing wherein is that solution treatment adds the timeliness processing, concrete technology such as following table:
C) aligning: the raw bar material after handling is carried out the forging hammer aligning;
D) beat deep hole: behind the through hole of getting suitable dimension on the raw bar material by special purpose machine tools such as deep hole drilling machines, make tubing;
E) honing: adopt honing stone that the tubing through hole is carried out the size that honing is machined to regulation, reach requirement on machining accuracy to the honing tube endoporus.
F) turning is scraped: proofread and correct the centre bore line earlier, adopt the special frock of lathe to push up the center line that hammer is determined endoporus with one heart, through measuring the two ends of withstanding tubing after the zero deflection, adopt lathe that the outer wall of tubing and end face are machined again and scrape, make the outer wall and the end face of tubing reach size and the requirement on machining accuracy that honing tube requires, finish the making of honing tube.
Beneficial effect of the present invention: the present invention is on conventional processing technology basis, select for use the TC4 titanium alloy to process honing tube, and adopt solution treatment to add timeliness and handle, beat processing technologys such as deep hole and honing, effectively satisfy mechanical performance and the requirement on machining accuracy of fields such as Aero-Space, satisfied in the fields such as Aero-Space, press instructions for use honing tube to honing tube.
Description of drawings:
Fig. 1 honing tube cutaway view
The left view of Fig. 2 honing tube shown in Figure 1
1. pipe outer walls, 2. inside pipe wall among the figure;
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
Figure 1 shows that the honing tube cutaway view, Figure 2 shows that the left view of honing tube shown in Fig. 1, the present invention mainly solves the processing technology of honing tube, especially tensile strength is not less than 1140MPa, yield strength is not less than 1030MPa, percentage elongation is not less than 16%, percentage elongation is not less than 38%, the processing technology of the honing tube that requirement on machining accuracy is higher, and the concrete processing technology step of accompanying drawings honing tube is as follows:
A) select materials: according to the external diameter and the length of honing tube, the TC4 titanium alloy rod bar that can select suitable dimension for use is as raw bar material, because titanium alloy density is little, the intensity height, the high temperature performance excellence, raw bar material as the processing honing tube, can satisfy the desired mechanical performance of honing tube, but the mechanical performances such as memory function that are limited to titanium alloy, select requirement on machining accuracy such as pure titanium or other titanium alloys are moving as the double jump that raw bar material is difficult to satisfy honing tube, fineness for use, less employing titanium or titanium alloy is made high-precision honing tube in the practice.For example be not less than 1140Mpa for tensile strength, yield strength is not less than 1030Mpa, percentage elongation is not less than 16%, percentage elongation is not less than 38%, and honing tube endoporus tube wall roughness Ra≤0.2 μ m, the I of dimensional accuracy reaches 0.005mm, the honing tube double jump is moving≤honing tube of 0.05mm, select for use pure titanium or part titanium alloy and other metal materials to be difficult to reach simultaneously above-mentioned mechanical performance and requirement on machining accuracy, but select through experiment, deep hole is beaten in employing after selecting the TC4 titanium alloy for use, honing, the turning honing tube of process processing such as scrape can satisfy the above-mentioned mechanical performance and the requirement on machining accuracy of honing tube preferably simultaneously, obtains good result of use.For example can select external diameter for use for the honing tube of external diameter 76mm, internal diameter 61.2mm, length 1520mm is 83mm, and the TC4 titanium alloy bar of length 1700mm is as fuel rod;
B) cogging, open die forging and Technology for Heating Processing: adopt conventional cogging, open die forging and Technology for Heating Processing to process to raw bar material, wherein Technology for Heating Processing adopts solution treatment to add the timeliness processing, and raw bar material is forged into suitable external diameter and cuts into the TC4 titanium alloy pole of appropriate length.Because heat treatment can make titanium alloy obtain better comprehensive mechanical property, aging temp is high more, and the time is long more, and the plasticity decline scope is big more, can satisfy requirement of the present invention Technology for Heating Processing see the following form:
By above-mentioned phase transition process, make crystal grain obtain refinement and even dispersion, make titanium alloy reach the purpose of dispersion-strengtherning.
For example be the TC4 titanium alloy bar of 83mm for external diameter, Gu but molten the processing adds the technology according to the form below employing that timeliness is handled:
For example for the TC4 titanium alloy honing tube of external diameter 76mm, internal diameter 61.2mm, length 1520mm, raw bar material can be forged into external diameter is 78mm, and cutting is that length is the TC4 titanium alloy pole material of 1523mm.TC4 titanium alloy rod bar comprehensive mechanical property through above-mentioned PROCESS FOR TREATMENT is better, and tensile strength is not less than 1140MPa, and yield strength is not less than 1030MPa, and percentage elongation is not less than 16%, and percentage elongation is not less than 38%.
The optimised process that solution treatment adds the timeliness processing sees the following form:
C) aligning: the titanium alloy rod bar after handling through cogging, open die forging and Technology for Heating Processing is carried out the forging hammer aligning, make it can satisfy the processing request of subsequent handling, for example glacing flatness requires to be not less than 1mm/m;
D) beat deep hole: adopt special purpose lathe on the TC4 titanium alloy rod bar, to beat deep hole, get the through hole of suitable dimension, process can adopt lathe to change deep hole drilling and boring machine or the depth drill Digit Control Machine Tool is beaten deep hole, drilling process is steady, the chip removal smoothness, and the size shape precision in hole and hole wall surface roughness all can be satisfied with, because its good rigidity, can strengthen the amount of feeding and drilling speed, production efficiency, drilling quality and economic benefit are all increased, show certain technical advantage.For example for the honing tube of external diameter 76mm, internal diameter 61.2mm, length 1520mm, the through hole internal diameter of getting on the TC4 titanium alloy rod bar is 605mm;
E) honing: adopt honing stone that the endoporus of TC4 titanium alloy pipe is carried out honing, make the endoporus internal diameter meet the dimensional requirement of honing tube, and reach desired machining accuracy; For example reach the requirement on machining accuracy of the honing tube of 0.005mm for honing tube endoporus tube wall roughness Ra≤0.2 μ m, the I of dimensional accuracy;
F) turning is scraped: proofread and correct the centre bore line earlier, adopt the special frock of lathe to push up the center line that hammer is determined endoporus with one heart, the two ends of withstanding tubing after measuring zero deflection fix the TC4 titanium alloy pipe, adopt lathe that the outer wall of TC4 tubing and end face are machined again and scrape, make the external diameter of tubing reach honing tube and require size, especially satisfy the part honing tube for the moving specification requirement of double jump, thereby finish the process of honing tube.For example for the honing tube double jump moving≤processing of the honing tube of 0.05mm.
Claims (3)
1. the processing technology of a honing tube is characterized in that, the processing technology step of honing tube is:
A) select materials: select the raw bar material of the TC4 titanium alloy rod bar of the suitable dimension that meets national standard for use as the processing honing tube;
B) cogging, open die forging and Technology for Heating Processing: adopt cogging, open die forging and Technology for Heating Processing to process to raw bar material;
C) aligning: the raw bar material after handling is carried out the forging hammer aligning;
D) beat deep hole: behind the through hole of getting suitable dimension on the raw bar material, make tubing;
E) honing: adopt honing stone that the through hole of tubing is carried out honing processing, make the through hole of tubing satisfy desired size of honing tube and requirement on machining accuracy;
F) turning is scraped: adopt lathe that the outer wall of tubing and end face are machined and scrape, make the external diameter of tubing reach size and the requirement on machining accuracy that honing tube requires, finish the making of honing tube;
Wherein, the Technology for Heating Processing of raw bar material is that solution treatment adds the timeliness processing in the processing technology step b), and concrete technology is:
The solid solution treatment process of raw bar material is: with molten treatment temperature is 905-965 ℃, and the solution treatment time is 20-120min, and the type of cooling is a water-cooled;
The aging treatment process of raw bar material is: aging temperature is 485-590 ℃, and the Ageing Treatment time is 2-8h, and the type of cooling is the air cooling of coming out of the stove;
Wherein according to the size of raw bar material outside dimension, the temperature and time that solution treatment and timeliness are handled is done the corresponding adjustment that fluctuates in said temperature and time interval range.
2. according to the processing technology of the described honing tube of claim 1, it is characterized in that the Technology for Heating Processing of raw bar material is that solution treatment adds the timeliness processing in the processing technology step b) of honing tube, concrete technology is:
Wherein the solid solution treatment process of raw bar material is: solid solution temperature is 935-965 ℃, and the solution treatment time is 30-60min, and the type of cooling is a water-cooled;
Wherein the aging treatment process of raw bar material is: aging temperature is 540-560 ℃, and the Ageing Treatment time is 3-5h, and the type of cooling is the air cooling of coming out of the stove;
Wherein according to the size of raw bar material outside dimension, the temperature and time that solution treatment and timeliness are handled is done the corresponding adjustment that fluctuates in said temperature and time interval range.
3. according to the processing technology of the described honing tube of claim 1, it is characterized in that, in the processing technology step f) of honing tube, proofread and correct the centre bore line of tubing earlier, adopt the special frock of lathe to push up the center line that hammer is determined endoporus with one heart, after measuring zero deflection, withstand and implement Vehicle Processing again behind the two ends of tubing and scrape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100208954A CN101462225B (en) | 2009-01-14 | 2009-01-14 | Technique for processing honing tube |
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| CN2009100208954A CN101462225B (en) | 2009-01-14 | 2009-01-14 | Technique for processing honing tube |
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| CN101462225A CN101462225A (en) | 2009-06-24 |
| CN101462225B true CN101462225B (en) | 2010-09-01 |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934341A (en) * | 2010-09-20 | 2011-01-05 | 宝鸡市利泰有色金属有限公司 | Forging technology of TC4 titanium alloy cylindrical part |
| CN102658456A (en) * | 2012-05-12 | 2012-09-12 | 徐富亮 | Machining method of plunger piston sleeve of oil pump |
| CN103056620B (en) * | 2012-12-20 | 2015-04-15 | 贵州凯星液力传动机械有限公司 | Elongated pipe part processing method |
| CN103433714A (en) * | 2013-09-13 | 2013-12-11 | 遵义市节庆机电有限责任公司 | Processing technology of cylindrical framework |
| CN103668028B (en) * | 2013-12-27 | 2015-07-01 | 张斌 | Preparation method of titanium and titanium alloy seamless tube blank |
| CN104028954A (en) * | 2014-01-07 | 2014-09-10 | 郑时华 | Manufacturing method of mold jacking pipe |
| CN106367703A (en) * | 2016-08-31 | 2017-02-01 | 无锡派克新材料科技股份有限公司 | Thermal treatment process for TC4 titanium alloy forging |
| CN107350740B (en) * | 2017-06-19 | 2019-04-26 | 江阴兴澄特种钢铁有限公司 | A kind of fine grinding stick cold drawing production technology that high intensity high dimensional accuracy concentricity is good |
| CN108098269A (en) * | 2017-12-18 | 2018-06-01 | 西安赛特思迈钛业有限公司 | A kind of preparation for processing of high intensity high-precision Ti6Al4V titanium alloy pipes |
| CN109023189B (en) * | 2018-09-06 | 2020-08-04 | 湖南瀚德微创医疗科技有限公司 | Heat treatment process for improving amplitude of cutter bar of ultrasonic cutter |
| CN110091127B (en) * | 2019-04-25 | 2022-01-18 | 上海航天精密机械研究所 | Integral precision machining method for thin-wall slender pipe fitting |
| CN111215849A (en) * | 2019-12-06 | 2020-06-02 | 西北有色金属研究院 | Processing method of titanium alloy special-shaped needle tube |
| CN111673387A (en) * | 2020-06-17 | 2020-09-18 | 江苏良工精密合金钢有限公司 | Manufacturing process of thin-walled tube for space nuclear power device |
| CN111889983B (en) * | 2020-08-05 | 2021-07-09 | 江苏领嘉科技有限公司 | Manufacturing method of clamping and pressing type steel pipe fitting with threads |
| US20230278099A1 (en) * | 2022-03-04 | 2023-09-07 | Goodrich Corporation | Systems and methods for manufacturing landing gear components using titanium |
| CN117464327B (en) * | 2023-12-25 | 2024-03-19 | 中北大学 | Method for prolonging fatigue life of hydrogen delivery pipe of 6061 aluminum alloy hydrogenation gun |
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