CN103111808A - Nickel-based superalloy GH4169 hexagon socket bolt machining technology - Google Patents
Nickel-based superalloy GH4169 hexagon socket bolt machining technology Download PDFInfo
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- CN103111808A CN103111808A CN2013100412473A CN201310041247A CN103111808A CN 103111808 A CN103111808 A CN 103111808A CN 2013100412473 A CN2013100412473 A CN 2013100412473A CN 201310041247 A CN201310041247 A CN 201310041247A CN 103111808 A CN103111808 A CN 103111808A
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Abstract
The invention discloses a nickel-based superalloy GH4169 hexagon socket bolt machining technology. The machining technology includes blanking, cascading grinding, lubricating, upsetting, coining, heat treating, cooling, sand blasting, machining, plugging grinding, aging treating, thread rolling, R circular arc rolling, flaw detecting and surface treating. The nickel-based superalloy GH4169 hexagon socket bolt machining technology is reasonable in arrangement of a process route, and improves connecting strength of the joint between the head portion of a bolt and a rod portion due to the fact that two-time hot upsetting forming and the R rolling process are adopted for the head portion of the bolt. Meanwhile, reasonable hot upsetting die materials and punch materials are adopted, and consequently manufacturing cost is reduced. Through adoption of upsetting forming of an upsetting die, the machining cycle of parts is greatly shortened, and size errors generated from repeated clamping in machining are reduced. Through adoption of combined machining of the upsetting process and the grinding process, the size uniformity of the parts and the quality stability of the parts are guaranteed.
Description
Technical field
The invention belongs to mechanical manufacturing field, relate to a kind of processing technology of connector, especially relate to a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology.
Background technology
Nickel base superalloy is the high temperature alloy that (content is generally greater than 50%) has higher intensity and good anti-oxidant, resistance to combustion gas corrosion ability in 650～1000 ℃ of scopes take nickel as matrix, this alloy has higher intensity, be widely used in the standard component of Aeronautics and Astronautics industry, wherein nickel base superalloy GH4169 hexagon socket head cap screw is the securing member that uses under some high temperature position syndetons of being everlasting.Nickel base superalloy GH4169 hexagon socket head cap screw has high temperature resistant, and high workload can reach 730 ℃, corrosion-resistant, intensity is high, the fatigue behaviour high.Because temperature is higher, therefore difficulty is larger when making this type of hexagon socket head cap screw.Be mostly to process by the internal hexagonal of electric spark operation by employing car system at present, this process route processing progress is slow, and production efficiency is low, and product quality can't be controlled efficiently.
Summary of the invention
For addressing the above problem, the invention provides a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology.According to based high-temperature alloy hexagon socket head cap screw service condition and mechanical performance, this hexagon socket head cap screw is carried out technological design, product quality is efficiently controlled, thereby processing and manufacturing go out the part of instructions for use up to specification.
The objective of the invention is to be achieved by following technical solution.
A kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology mainly comprises following processing step:
(1) blanking: adopt lathe to carry out blanking by bolt actual use length of material and diameter;
(2) string mill: the blank after blanking is carried out cylindrical string mill;
(3) lubricated: the blank that will go here and there after grinding adopts copper facing to be lubricated;
(4) thick upsetting: the blank after lubricating is put into the upsetting molding jig, adopts hot upsetting mode to carry out head dummy upsetting system with the heading machine of attacking of different model according to bolt specification more;
(5) pressure-sizing: the blank after to thick upsetting carries out hexagonal size in the punching press bolt in conjunction with drift to adopt according to bolt specification forcing press that hot upsetting mode selects different tonnages;
(6) heat treatment: the blank after thick upsetting and Precision forging is placed on carries out solution treatment in vacuum drying oven, solid solubility temperature is 1100 ℃～1150 ± 25 ℃, and the time is 2～3h;
(7) cooling: as will to adopt air to carry out cooling as the blank workpiece after solution treatment as described in step (6);
(8) sandblast: cooled workpiece is removed surface scale;
(9) machining: base footpath before the rolling of first employing contracting bar mode machining screw, adopting turning processing bolt overall length and cutting thread chamfer;
(10) plug mill: mill bolt shank size;
(11) Ageing Treatment: aging temp is 850 ± 25 ℃, and temperature retention time is 24～30h, air cooling;
(12) rolling screw thread: adopt heating generator that rolling screw-threads is partly heated to 600 ± 50 ℃ and carry out the rolling screw thread;
(13) roll the R circular arc: rolling bolt head and bar section junction circular arc R;
(14) flaw detection: adopt fluorescence to carry out defect detecting test;
(15) surface treatment: silver-plated 3～5 μ m; Plating is by dehydrogenation, 300 ± 25 ℃ of temperature, and the time is controlled at 24～30h.
For the ease of rear operation, bolt shank is carried out grinding, in described step (2), cylindrical string mill size is than the large 0.2～0.3mm of the final bar of bolt section's size.
Because the nickel base superalloy GH4169 strength of materials is high, damage for preventing the upsetting molding jig, improve the service life of upsetting molding jig, so the upsetting molding jig adopts carbide alloy YG15 material to make.Because YG15 has good intensity and toughness, be fit to make Drawing die set, wear part and punching press accessory and carbide alloy automatic press core rod.
Described drift adopts the Th66 material to make.
The invention has the beneficial effects as follows:
Compared with prior art, process route arrangement of the present invention is reasonable, and bolt head adopts twice hot upsetting moulding, rolls R technique, has improved the bonding strength of bolt head and bar section junction; Select simultaneously rational hot upsetting mold materials and drift material, reduced manufacturing cost.Make type by the upsetting of upsetting molding jig, greatly shortened the process-cycle of part, reduced the scale error that the machining multiple clamping produces; Be combined processing with grinding process by upsetting operation processed, guaranteed the uniformity of accessory size and the stability of part quality.
The specific embodiment
Further describe technical scheme of the present invention below in conjunction with embodiment, but that claimed scope is not limited to is described.
Embodiment 1: a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology when adopting this processes screw thread specification less than or equal to the bolt of M12, mainly comprises following processing step:
(1) blanking: adopt lathe to carry out blanking by bolt actual use length of material and diameter;
(2) string mill: the blank after blanking is carried out cylindrical string mill;
(3) lubricated: the blank that will go here and there after grinding adopts copper facing to be lubricated;
(4) thick upsetting: the blank after lubricating is put into the upsetting molding jig, adopts hot upsetting mode to carry out head dummy upsetting system with the heading machine of attacking of different model according to bolt specification more; This process is only processed head sizes, does not process interior hexagonal size.After thick upsetting, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
5) pressure-sizing: the blank after to thick upsetting carries out hexagonal size in the punching press bolt in conjunction with drift to adopt according to bolt specification forcing press that hot upsetting mode selects different tonnages; After pressure-sizing, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
(6) heat treatment: the blank after thick upsetting and Precision forging is placed on carries out solution treatment in vacuum drying oven, solid solubility temperature is 1100 ± 25 ℃, and the time is 2h;
(7) cooling: as will to adopt air to carry out cooling as the blank workpiece after solution treatment as described in step (6);
(8) sandblast: cooled workpiece is removed surface scale;
(9) machining: base footpath before the rolling of first employing contracting bar mode machining screw, adopting turning processing bolt overall length and cutting thread chamfer;
(10) plug mill: mill bolt shank size;
(11) Ageing Treatment: aging temp is 850 ± 25 ℃, and temperature retention time is 24～30h, air cooling;
(12) rolling screw thread: adopt heating generator that rolling screw-threads is partly heated to 600 ± 50 ℃ and carry out the rolling screw thread; Initial and end spare is done metallographic examination.
(13) roll the R circular arc: the circular arc R under rolling supporting surface head;
(14) flaw detection: adopt fluorescence to carry out defect detecting test; Do not allowed crackle, be mingled with and other metallurgical imperfection;
(15) surface treatment: silver-plated 3～5 μ m; Plating is by dehydrogenation, 300 ± 25 ℃ of temperature, and the time is controlled at 24～30h.
Embodiment 2: a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology, and adopt this processes screw thread specification when the bolt of M12～M24, mainly comprise following processing step:
(1) blanking: adopt lathe to carry out blanking by bolt actual use length of material and diameter;
(2) string mill: the blank after blanking is carried out cylindrical string mill;
(3) lubricated: the blank that will go here and there after grinding adopts copper facing to be lubricated;
(4) thick upsetting: the blank after lubricating is put into the upsetting molding jig, adopts hot upsetting mode to carry out head dummy upsetting system with the heading machine of attacking of different model according to bolt specification more; This process is only processed head sizes, does not process interior hexagonal size.After thick upsetting, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
5) pressure-sizing: the blank after to thick upsetting carries out hexagonal size in the punching press bolt in conjunction with drift to adopt according to bolt specification forcing press that hot upsetting mode selects different tonnages; After pressure-sizing, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
(6) heat treatment: the blank after thick upsetting and Precision forging is placed on carries out solution treatment in vacuum drying oven, solid solubility temperature is 1150 ± 25 ℃, and the time is 2.5h;
(7) cooling: as will to adopt air to carry out cooling as the blank workpiece after solution treatment as described in step (6);
(8) sandblast: cooled workpiece is removed surface scale;
(9) machining: base footpath before the rolling of first employing contracting bar mode machining screw, adopting turning processing bolt overall length and cutting thread chamfer;
(10) plug mill: mill bolt shank size;
(11) Ageing Treatment: aging temp is 850 ± 25 ℃, and temperature retention time is 24～30h, air cooling;
(12) rolling screw thread: adopt heating generator that rolling screw-threads is partly heated to 600 ± 50 ℃ and carry out the rolling screw thread; Initial and end spare is done metallographic examination.
(13) roll the R circular arc: the circular arc R under rolling supporting surface head;
(14) flaw detection: adopt fluorescence to carry out defect detecting test; Do not allowed crackle, be mingled with and other metallurgical imperfection;
(15) surface treatment: silver-plated 3～5 μ m; Plating is by dehydrogenation, 300 ± 25 ℃ of temperature, and the time is controlled at 24～30h.
Embodiment 3: a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology, and adopt this processes screw thread specification when the bolt of M24～M42, mainly comprise following processing step:
(1) blanking: adopt lathe to carry out blanking by bolt actual use length of material and diameter;
(2) string mill: the blank after blanking is carried out cylindrical string mill;
(3) lubricated: the blank that will go here and there after grinding adopts copper facing to be lubricated;
(4) thick upsetting: the blank after lubricating is put into the upsetting molding jig, adopts hot upsetting mode to carry out head dummy upsetting system with the heading machine of attacking of different model according to bolt specification more; This process is only processed head sizes, does not process interior hexagonal size.After thick upsetting, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
5) pressure-sizing: the blank after to thick upsetting carries out hexagonal size in the punching press bolt in conjunction with drift to adopt according to bolt specification forcing press that hot upsetting mode selects different tonnages; After pressure-sizing, initial and end spare is done metallographic examination, checks that bolt head metal streamline and bolt have or not burning, superheating phenomenon.
(6) heat treatment: the blank after thick upsetting and Precision forging is placed on carries out solution treatment in vacuum drying oven, solid solubility temperature is 1150 ± 25 ℃, and the time is 3h;
(7) cooling: as will to adopt air to carry out cooling as the blank workpiece after solution treatment as described in step (6);
(8) sandblast: cooled workpiece is removed surface scale;
(9) machining: base footpath before the rolling of first employing contracting bar mode machining screw, adopting turning processing bolt overall length and cutting thread chamfer;
(10) plug mill: mill bolt shank size;
(11) Ageing Treatment: aging temp is 850 ± 25 ℃, and temperature retention time is 24～30h, air cooling;
(12) rolling screw thread: adopt heating generator that rolling screw-threads is partly heated to 600 ± 50 ℃ and carry out the rolling screw thread; Initial and end spare is done metallographic examination.
(13) roll the R circular arc: the circular arc R under rolling supporting surface head;
(14) flaw detection: adopt fluorescence to carry out defect detecting test; Do not allowed crackle, be mingled with and other metallurgical imperfection;
(15) surface treatment: silver-plated 3～5 μ m; Plating is by dehydrogenation, 300 ± 25 ℃ of temperature, and the time is controlled at 24～30h.
Claims (4)
1. nickel base superalloy GH4169 hexagon socket head cap screw processing technology is characterized in that: mainly comprise following processing step:
(1) blanking: adopt lathe to carry out blanking by bolt actual use length of material and diameter;
(2) string mill: the blank after blanking is carried out cylindrical string mill;
(3) lubricated: the blank that will go here and there after grinding adopts copper facing to be lubricated;
(4) thick upsetting: the blank after lubricating is put into the upsetting molding jig, adopts hot upsetting mode to carry out head dummy upsetting system with the heading machine of attacking of different model according to bolt specification more;
(5) pressure-sizing: the blank after to thick upsetting carries out hexagonal size in the punching press bolt in conjunction with drift to adopt according to bolt specification forcing press that hot upsetting mode selects different tonnages;
(6) heat treatment: the blank after thick upsetting and Precision forging is placed on carries out solution treatment in vacuum drying oven, solid solubility temperature is 1100 ℃～1150 ± 25 ℃, and the time is 2～3h;
(7) cooling: as will to adopt air to carry out cooling as the blank workpiece after solution treatment as described in step (6);
(8) sandblast: cooled workpiece is removed surface scale;
(9) machining: base footpath before the rolling of first employing contracting bar mode machining screw, adopting turning processing bolt overall length and cutting thread chamfer;
(10) plug mill: mill bolt shank size;
(11) Ageing Treatment: aging temp is 850 ± 25 ℃, and temperature retention time is 24～30h, air cooling;
(12) rolling screw thread: adopt heating generator that rolling screw-threads is partly heated to 600 ± 50 ℃ and carry out the rolling screw thread;
(13) roll the R circular arc: rolling bolt head and bar section junction circular arc R;
(14) flaw detection: adopt fluorescence to carry out defect detecting test;
(15) surface treatment: silver-plated 3～5 μ m; Plating is by dehydrogenation, 300 ± 25 ℃ of temperature, and the time is controlled at 24～30h.
2. a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology according to claim 1 is characterized in that: in described step (2), cylindrical string mill size is than the large 0.2～0.3mm of the final bar of bolt section's size.
3. a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology according to claim 1, is characterized in that: upsetting molding jig employing carbide alloy YG15 material making in described step (4).
4. a kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technology according to claim 1, is characterized in that: drift employing Th66 material making in described step (5).
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| CN201310041247.3A CN103111808B (en) | 2013-02-01 | 2013-02-01 | A kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technologys |
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| CN201310041247.3A CN103111808B (en) | 2013-02-01 | 2013-02-01 | A kind of nickel base superalloy GH4169 hexagon socket head cap screw processing technologys |
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| CN103111808A true CN103111808A (en) | 2013-05-22 |
| CN103111808B CN103111808B (en) | 2017-09-15 |
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| CN104014998A (en) * | 2014-06-11 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Method for machining titanium alloy torsion test bar |
| CN105734241A (en) * | 2016-03-18 | 2016-07-06 | 贵州航天精工制造有限公司 | Heat treatment method for improving high-temperature endurance property of GH2132 bolt |
| CN105798539A (en) * | 2014-12-29 | 2016-07-27 | 核工业西南物理研究院 | High temperature alloy bolt production method |
| CN107322237A (en) * | 2017-06-22 | 2017-11-07 | 贵州精立航太科技有限公司 | A kind of processing technology of high-temperature alloy bolt |
| CN107363481A (en) * | 2017-07-21 | 2017-11-21 | 南通安赛乐紧固件有限公司 | A kind of cold-heading molding technique of rack bolt |
| CN107570976A (en) * | 2017-10-24 | 2018-01-12 | 苏州华丰不锈钢紧固件有限公司 | A kind of aftertreatment technology of stainless steel bolt |
| CN108145052A (en) * | 2017-12-28 | 2018-06-12 | 江苏润明不锈钢制品有限公司 | Non-welding type pre-embedded bolt processing technology |
| CN108436022A (en) * | 2018-04-12 | 2018-08-24 | 贵州精立航太科技有限公司 | A kind of high temperature alloy hexagon socket head cap screw punching press optimization method |
| CN108504833A (en) * | 2018-03-28 | 2018-09-07 | 贵州航天精工制造有限公司 | A kind of GH4169 superhigh intensitys antifatigue bolt processing method |
| CN110052788A (en) * | 2019-04-30 | 2019-07-26 | 海盐猛凌汽车配件有限公司 | A kind of contact bolt processing technic featuring |
| CN110524200A (en) * | 2019-09-04 | 2019-12-03 | 王丽 | Titanium alloy bolt production technology |
| CN110977018A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Broach for machining inner hexagonal connecting bolt and broaching method |
| CN111922266A (en) * | 2020-07-29 | 2020-11-13 | 陕西建科方圆汽车零部件有限公司 | Hot forging bolt processing method |
| CN112642987A (en) * | 2020-12-21 | 2021-04-13 | 贵州航天精工制造有限公司 | GH4169 alloy bolt forming method and alloy bolt |
| CN113953773A (en) * | 2021-11-16 | 2022-01-21 | 贵州航天精工制造有限公司 | Method for processing and controlling bolt with polished rod diameter tolerance zone of 9 mu m |
| CN114453841A (en) * | 2022-02-14 | 2022-05-10 | 中国科学院金属研究所 | Preparation method and application of heat-resistant titanium alloy bolt for aerospace |
| CN115401426A (en) * | 2022-10-08 | 2022-11-29 | 东方蓝天钛金科技有限公司 | Machining process of gear groove countersunk head bolt made of nickel-based superalloy material |
| CN115505710A (en) * | 2022-09-24 | 2022-12-23 | 中国航空工业标准件制造有限责任公司 | A heat treatment method for stress-persistent GH4169 bolts |
| CN115852111A (en) * | 2022-12-23 | 2023-03-28 | 西北工业大学 | Strengthening method of PH13-8Mo material |
| CN116833690A (en) * | 2023-09-01 | 2023-10-03 | 北京航为高科连接技术有限公司 | Machining method of aviation heat-resistant bolt and bolt |
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| CN104014998A (en) * | 2014-06-11 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Method for machining titanium alloy torsion test bar |
| CN105798539A (en) * | 2014-12-29 | 2016-07-27 | 核工业西南物理研究院 | High temperature alloy bolt production method |
| CN105734241A (en) * | 2016-03-18 | 2016-07-06 | 贵州航天精工制造有限公司 | Heat treatment method for improving high-temperature endurance property of GH2132 bolt |
| CN107322237A (en) * | 2017-06-22 | 2017-11-07 | 贵州精立航太科技有限公司 | A kind of processing technology of high-temperature alloy bolt |
| CN107363481A (en) * | 2017-07-21 | 2017-11-21 | 南通安赛乐紧固件有限公司 | A kind of cold-heading molding technique of rack bolt |
| CN107570976A (en) * | 2017-10-24 | 2018-01-12 | 苏州华丰不锈钢紧固件有限公司 | A kind of aftertreatment technology of stainless steel bolt |
| CN108145052A (en) * | 2017-12-28 | 2018-06-12 | 江苏润明不锈钢制品有限公司 | Non-welding type pre-embedded bolt processing technology |
| CN108504833A (en) * | 2018-03-28 | 2018-09-07 | 贵州航天精工制造有限公司 | A kind of GH4169 superhigh intensitys antifatigue bolt processing method |
| CN108436022A (en) * | 2018-04-12 | 2018-08-24 | 贵州精立航太科技有限公司 | A kind of high temperature alloy hexagon socket head cap screw punching press optimization method |
| CN110052788A (en) * | 2019-04-30 | 2019-07-26 | 海盐猛凌汽车配件有限公司 | A kind of contact bolt processing technic featuring |
| CN110524200A (en) * | 2019-09-04 | 2019-12-03 | 王丽 | Titanium alloy bolt production technology |
| CN110977018A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Broach for machining inner hexagonal connecting bolt and broaching method |
| CN111922266A (en) * | 2020-07-29 | 2020-11-13 | 陕西建科方圆汽车零部件有限公司 | Hot forging bolt processing method |
| CN112642987A (en) * | 2020-12-21 | 2021-04-13 | 贵州航天精工制造有限公司 | GH4169 alloy bolt forming method and alloy bolt |
| CN113953773A (en) * | 2021-11-16 | 2022-01-21 | 贵州航天精工制造有限公司 | Method for processing and controlling bolt with polished rod diameter tolerance zone of 9 mu m |
| CN113953773B (en) * | 2021-11-16 | 2024-03-01 | 贵州航天精工制造有限公司 | Bolt machining control method with diameter tolerance zone of polished rod of 9 mu m |
| CN114453841A (en) * | 2022-02-14 | 2022-05-10 | 中国科学院金属研究所 | Preparation method and application of heat-resistant titanium alloy bolt for aerospace |
| CN115505710A (en) * | 2022-09-24 | 2022-12-23 | 中国航空工业标准件制造有限责任公司 | A heat treatment method for stress-persistent GH4169 bolts |
| CN115505710B (en) * | 2022-09-24 | 2025-05-02 | 中国航空工业标准件制造有限责任公司 | A heat treatment method for stress-lasting GH4169 bolts |
| CN115401426A (en) * | 2022-10-08 | 2022-11-29 | 东方蓝天钛金科技有限公司 | Machining process of gear groove countersunk head bolt made of nickel-based superalloy material |
| CN115852111A (en) * | 2022-12-23 | 2023-03-28 | 西北工业大学 | Strengthening method of PH13-8Mo material |
| CN116833690A (en) * | 2023-09-01 | 2023-10-03 | 北京航为高科连接技术有限公司 | Machining method of aviation heat-resistant bolt and bolt |
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