CN104014998A - Method for machining titanium alloy torsion test bar - Google Patents
Method for machining titanium alloy torsion test bar Download PDFInfo
- Publication number
- CN104014998A CN104014998A CN201410256551.4A CN201410256551A CN104014998A CN 104014998 A CN104014998 A CN 104014998A CN 201410256551 A CN201410256551 A CN 201410256551A CN 104014998 A CN104014998 A CN 104014998A
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- China
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- size
- titanium alloy
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- carried out
- turning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a method for machining a titanium alloy torsion test bar. The method includes the following steps that (1) after cutting and blanking is carried out, a heat treatment procedure is conducted, quench tempering is carried out, and deltab ranges from 1030 N/mm to 11810 N/mm; (2) the heat treatment procedure is conducted; (3) a turning procedure is carried out; (4) according to the actual length of a workpiece, and an annular chip breaker groove is turned through an alloy offset tool every a certain distance; (5) rough turning is conducted on an outer ring of a major diameter of a thread until the size is reached, then finish milling is carried out hexagonally until the size is reached, the requirements for the size and degree of symmetry are guaranteed, finish turning is conducted on the thread until the size is reached, the requirement for coaxiality is guaranteed, and the two end faces of the test bar are turned to be exposed in light; (6) artificial aging is conducted, residual stress in the torsion test bar is eliminated, and then surface pulse anodizing is carried out. According to the machining process, the phenomenon that the tool is struck continuously during cutting in a machining process is eliminated, built-up edges are prevented, and turning efficiency is improved.
Description
Technical field
The processing method that the present invention relates to a kind of titanium alloy torque test rod, belongs to a kind of processing method.
Background technology
Along with the fast development of Aero-Space cause in recent years, titanium alloy material is widely used in this case in aircraft manufacturing industry.Titanium alloy is because self specific strength is high, the restriction of the unfavorable factors such as heat-resistance coefficient is low, exist difficult point especially to process in turning to titanium alloy class part always, the sticky cutter phenomenon of built-up edge is restricting efficiency and the machining accuracy of titanium alloy component processing always, causes a high major reason of processing cost of titanium alloy class part.Titanium alloy torque test rod material therefor completely and in military secret the material of titanium alloy bolt used in full accord, titanium alloy bolt can afford various situations aboard, as shearing force, torsion etc., the quality of torque test rod directly has influence on the torsional strength of part on aircraft.If can solve the processing difficulties of titanium alloy material torque test rod, so also can solve titanium alloy class all cylindrical and be threaded versatility and the practicality of class instrument.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of processing method of titanium alloy torque test rod, and this processing method has solved the phenomenon that the cutting in process does not stop to glue cutter, prevents the formation of built-up edge, improves the efficiency of turning processing.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of processing method of titanium alloy torque test rod, comprises the following steps:
1), after shearing blanking, then heat-treat operation, the tempering of quenching, δ
b-=1030～11810N/mm;
2) heat treatment step: blast, remove unnecessary oxide skin;
3) turner operation: two ends, left and right centre bore processed, the large footpath of cutting thread cylindrical, stays the allowance of 0.8-1mm, six side place car circumscribed circles, chamfering, all the other are to dimensional requirement;
4) according to the physical length of workpiece, every a segment distance, with annular chip-breaker of alloy offset tool car;
5) the large footpath of rough threading cylindrical is to size, and then finish-milling six sides, to size, ensure size and symmetry requirement, then finish turning is threaded into size, and ensures axiality requirement, and light is met personally at car test bar two ends;
6) artificial aging, the internal residual stress of elimination torque test rod, then carries out surperficial pulsed anode processing.
When the processing method of this titanium alloy torque test rod adopts above-mentioned steps to avoid thread grinding, grinding-wheel grinder abscission, adopts carbide-tipped lathe tool screw thread, can effectively ensure tooth form dimensional requirement, and efficiency improves.
Brief description of the drawings
Fig. 1 is the machining sketch chart of titanium alloy torque test rod.
Fig. 2 is the chip-breaker structure on titanium alloy torque test rod.
Detailed description of the invention
As shown in Figure 1, a kind of processing method of titanium alloy torque test rod, comprises the following steps:
1), after shearing blanking, then heat-treat operation, the tempering of quenching, δ
b-=1030～11810N/mm;
2) heat treatment step: blast, remove unnecessary oxide skin;
3) turner operation: two ends, left and right centre bore processed, the large footpath of cutting thread cylindrical, stays the allowance of 0.8-1mm, six side place car circumscribed circles, chamfering, all the other are to dimensional requirement;
4), according to the physical length of workpiece, every a segment distance, with annular chip-breaker of alloy offset tool car, as shown in Figure 2, titanium alloy cutting, in the time rotating to herein, will disconnect automatically like this, effectively protects cutter, improves the service life of cutter;
5) the large footpath of rough threading cylindrical is to size, and then finish-milling six sides, to size, ensure size and symmetry requirement, then finish turning is threaded into size, and ensures axiality requirement, and light is met personally at car test bar two ends;
6) artificial aging, the internal residual stress of elimination torque test rod, then carries out surperficial pulsed anode processing, to improve titanium alloy surface hardness.
The beneficial effect of the processing method of this titanium alloy torque test rod is:
1) conventional machining screw thread all adopts screw grinder grinding form of thread, this torque test rod adopts turning process, grinding-wheel grinder abscission while having avoided thread grinding, adopt carbide-tipped lathe tool screw thread, can effectively ensure tooth form dimensional requirement, efficiency improves, and workman reduces man-hour, and the machining accuracy of torque test rod is without any impact;
2) shaped profile turning cutter of turning titanium alloy torque test rod is selected the matrix of W18Cr4V as alloy cutter, cutter head welding Y330 alloy blade, and the alloy of this kind of material and titanium alloy affinity are poor, are beneficial to the processing of titanium alloy;
3) according to the difference of the chip-breaker quantity on every batch of torque test rod or position as batch mark;
4) this method for turning has not only improved turner machining accuracy but also has improved working (machining) efficiency, reduces the impact of the sticky cutter of titanium alloy material simultaneously, improves the service life of cutter, and the working (machining) efficiency of torque test rod.
Claims (1)
1. a processing method for titanium alloy torque test rod, is characterized in that comprising the following steps:
1), after shearing blanking, then heat-treat operation, the tempering of quenching, δ
b-=1030～11810N/mm;
2) heat treatment step: blast, remove unnecessary oxide skin;
3) turner operation: two ends, left and right centre bore processed, the large footpath of cutting thread cylindrical, stays the allowance of 0.8-1mm, six side place car circumscribed circles, chamfering, all the other are to dimensional requirement;
4) according to the physical length of workpiece, every a segment distance, with annular chip-breaker of alloy offset tool car;
5) the large footpath of rough threading cylindrical is to size, and then finish-milling six sides, to size, ensure size and symmetry requirement, then finish turning is threaded into size, and ensures axiality requirement, and light is met personally at car test bar two ends;
6) artificial aging, the internal residual stress of elimination torque test rod, then carries out surperficial pulsed anode processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256551.4A CN104014998A (en) | 2014-06-11 | 2014-06-11 | Method for machining titanium alloy torsion test bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256551.4A CN104014998A (en) | 2014-06-11 | 2014-06-11 | Method for machining titanium alloy torsion test bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104014998A true CN104014998A (en) | 2014-09-03 |
Family
ID=51432152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410256551.4A Pending CN104014998A (en) | 2014-06-11 | 2014-06-11 | Method for machining titanium alloy torsion test bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104014998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384865A (en) * | 2014-11-25 | 2015-03-04 | 吴中区长桥诚惠机械加工厂 | Machining technology of connecting shaft |
| CN108436199A (en) * | 2018-06-13 | 2018-08-24 | 沈阳富创精密设备有限公司 | A kind of mechanical processing technique of anode threaded hole |
| CN114888530A (en) * | 2022-05-19 | 2022-08-12 | 贵州天义电器有限责任公司 | Forming process method for one-step processing of polished rod and threads of shaft parts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| CN102941448A (en) * | 2012-11-22 | 2013-02-27 | 河南航天精工制造有限公司 | Aluminum alloy highly-locking nut machining process |
| CN103111808A (en) * | 2013-02-01 | 2013-05-22 | 贵州精立航太科技有限公司 | Nickel-based superalloy GH4169 hexagon socket bolt machining technology |
| CN103317313A (en) * | 2013-07-15 | 2013-09-25 | 鹏驰五金制品有限公司 | Automobile hub bolt and machining technology thereof |
-
2014
- 2014-06-11 CN CN201410256551.4A patent/CN104014998A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| CN102941448A (en) * | 2012-11-22 | 2013-02-27 | 河南航天精工制造有限公司 | Aluminum alloy highly-locking nut machining process |
| CN103111808A (en) * | 2013-02-01 | 2013-05-22 | 贵州精立航太科技有限公司 | Nickel-based superalloy GH4169 hexagon socket bolt machining technology |
| CN103317313A (en) * | 2013-07-15 | 2013-09-25 | 鹏驰五金制品有限公司 | Automobile hub bolt and machining technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘仁志 等: "TC16钛合金六角自锁螺母加工技术研究", 《飞机设计》, vol. 31, no. 3, 30 June 2011 (2011-06-30), pages 51 - 54 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384865A (en) * | 2014-11-25 | 2015-03-04 | 吴中区长桥诚惠机械加工厂 | Machining technology of connecting shaft |
| CN108436199A (en) * | 2018-06-13 | 2018-08-24 | 沈阳富创精密设备有限公司 | A kind of mechanical processing technique of anode threaded hole |
| CN114888530A (en) * | 2022-05-19 | 2022-08-12 | 贵州天义电器有限责任公司 | Forming process method for one-step processing of polished rod and threads of shaft parts |
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Application publication date: 20140903 |
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