CN105904151A - Thin-wall component recombining and restoring method based on pulse welding and laser augmented material restoring - Google Patents
Thin-wall component recombining and restoring method based on pulse welding and laser augmented material restoring Download PDFInfo
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- CN105904151A CN105904151A CN201610346139.0A CN201610346139A CN105904151A CN 105904151 A CN105904151 A CN 105904151A CN 201610346139 A CN201610346139 A CN 201610346139A CN 105904151 A CN105904151 A CN 105904151A
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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
- B23P6/00—Restoring or reconditioning objects
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Abstract
The invention discloses a thin-wall component recombining and restoring method based on pulse welding and laser augmented material restoring. The method is characterized in that firstly, the distribution and trend of cracks and other penetrating damage are determined through a coloring check method; secondly, grinding treatment is conducted through a hard alloy rotary file, and a penetrating groove in a relatively regular shape is formed; thirdly, optimal grinding of a pulse welding groove is conducted; fourthly, cleaning of the penetrating groove and a groove body of the penetrating groove is conducted; fifthly, pulse welding bridging restoring of the penetrating groove is conducted; sixthly, a bridging welding restored body is ground and cleaned; and seventhly, laser augmented material restoring is conducted on a damaged structure. The method has the following advantages that the pulse welding restoring bridging capability is high, a base plate does not need to be additionally designed or manufactured, the restoring technology process of a penetrating damage component can be simplified, and the restoring efficiency is improved. A pulse welding restoring control system outputs data stably and accurately, heat input in the restoring process can be accurately controlled, the deformation of the restored workpiece can be reduced, and the restoring precision is high. Three-dimensional forming restoring of the damaged component can be automatically achieved through laser deposition restoring, the restoring efficiency is improved, and the stability and consistency of the restoring technology are good.
Description
Technical field:
The invention belongs to damage parts reparation and re-manufacturing technology field, a kind of thin-wall part combined-repair method repaired based on pulse welding and laser gain material.
Background technology:
The work under bad environment that the aviation large thin-wall parts such as engine crankcase, leaf dish are on active service, is easily generated crackle after the effect such as part is frayed, impact, high-temperature fuel gas and cool-hot fatigue, corrode and wear and tear equivalent damage.Requirement due to production cost and period, in the urgent need to using advanced recovery technique to realize the high-quality and high-efficiency reparation of damage parts, extend its service life, reduce and more renew part, reduce great economic loss, shortening maintenance cycle, aviation large thin-wall parts recovery technique is increasingly subject to the attention of Aviation Manufacturing Enterprises and maintenance company.
For crackle, corrode and wear and tear equivalent damage, needs to carry out polishing and clean before reparation, as crackle and oxide on surface removed completely by polishing, forms the shape district to be repaired relative to regularization, and cleans up, it is simple to follow-up reparation.After polishing cleaning treatment, parts type of impairment can be divided into surface damage and penetrance to damage two classes.
Owing to laser gain material reparation has heat input energy-controllable and flexibility manufacture characteristic, repair workpiece stress and deformation is little so that it is be particularly suitable for the three-dimensional reparation of the precious metal material parts such as the titanium alloy of large thin-wall structure, high temperature alloy.But parts are damaged for penetrance, as used laser gain material reparation, dedicated substrate need to be manufactured according to the construction features adaptability in part and district to be repaired and be used as accepting the matrix of laser molten pool, guarantee reparation is smoothed out, increase the complexity of renovation technique, increase non-cutting time and the cost of reparation, reduce remediation efficiency, limit the scope of application of laser gain material renovation technique.
Summary of the invention:
It is an object of the invention to provide a kind of non-cutting time reducing reparation and cost, improve remediation efficiency, first use Precision Pulse welding that penetrance injuring part is carried out lapping repair, form the matrix accepting laser molten pool, the thin-wall part combined-repair method repaired based on pulse welding and laser gain material that the three-dimensional then using laser gain material reparation to complete damaged structure is repaired.
The present invention is achieved in that and it is characterized in that:
(1) use dyeing inspection method to determine distribution and the trend of the penetrance damages such as crackle, and use profile minimum envelop method regularization polishing damage field；
(2) use carbide rotary tool to carry out grinding process, form the shape through slot relative to regularization；
(3) the optimization polishing of pulse welding groove, is optimized polishing to through slot groove, and the Angle ambiguity of groove is between 30 ° ~ 60；
(4) through slot and the cleaning of groove thereof；
(5) the pulse welding lapping repair of through slot；
(6) the polishing of bridging REPAIR WELDING body and cleaning；
(7) the laser gain material reparation of damaged structure: formed bridging REPAIR WELDING body bottom through slot, structure to be repaired is blind slot shape, completes the increasing material reparation of whole blind slot, it is achieved the shaping reparation of damaged structure.
The invention have the advantages that (1) pulse welding reparation bridging ability is strong, it is not necessary to otherwise designed manufactures substrate, the renovation technique process of penetrance injuring part can be simplified, improve remediation efficiency；(2) pulse welding reparation control system output data stabilization is accurate, it is possible to accurately controls the heat input in repair process, can reduce and repair workpiece deflection, repair precision high；(3) laser deposition reparation can be automatically obtained the three-dimensional reparation of injuring part, improves remediation efficiency and the stability of renovation technique and concordance is good；Additionally heat input is controlled, repairs part deformation little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described:
Fig. 1 is the part schematic diagram with penetrance damages such as crackles；
Fig. 2 is envelope method regularization polishing damage field schematic diagram；
Fig. 3 is the part area to be repaired schematic diagram after removing crackle；
Fig. 4. the parts locally schematic diagram after pulse welding lapping repair；
Fig. 5. laser gain material repair system schematic diagram；
Fig. 6. the dummy schematic diagram after damage parts complex repairation.
Detailed description of the invention:
As shown in Fig. 16, should thin-wall part combined-repair method based on pulse welding and laser gain material reparation include the through slot 4 after crack damage 1, the envelope contour 2 of damage, carbide rotary tool 3, polishing, groove 5, for Precision Pulse welding machine 6, bridging REPAIR WELDING body, welding gun 8, laser instrument 9, light path system 10, coaxial powder feeding head 11, workbench 12, blind slot 13, dummy 14.Its restorative procedure is as follows: 1. be illustrated in figure 1 penetrance injuring parts 1 such as having crackle.Use dyeing inspection method to determine distribution and the trend of the penetrance damages such as crackle before repairing, and use profile minimum envelop method regularization polishing damage field 2, as shown in Figure 2；2.
Use carbide rotary tool to carry out grinding process, form the shape through slot relative to regularization, limit polishing edge coloring inspection, until the penetrance damages such as crackle are removed in polishing completely, form the shape through slot 4 relative to regularization；3, the optimization polishing of pulse welding groove, is optimized polishing to through slot 4 groove 5, and groove 5 angular range controls between 30 ° ~ 60 °；4, through slot and the cleaning of groove thereof, clean up district to be repaired, removes surface and oil contaminant；5, using Precision Pulse welding machine 6, manual operation welding gun 8 carries out welding of putting up a bridge to through slot 4, forms the bridging REPAIR WELDING body 7 accepting laser repairing molten bath, and THICKNESS CONTROL is at more than 1mm；6, use carbide rotary tool 3 that bridging REPAIR WELDING body 7 is polished, remove surface oxide layer, make bridging REPAIR WELDING body 7 surfacing；And use acetone to be cleaned up by bridging REPAIR WELDING body 7, remove surface and oil contaminant；7, according to the threedimensional model of structure to be repaired, in conjunction with dissimilar material properties, plan that suitable scanning pattern coupling reasonably repair parameter, on the basis of bridging REPAIR WELDING body 7, use laser gain material repaired item that structure to be repaired is formed reparation.Laser repairing equipment is mainly by laser instrument 9, light path system 10, and coaxial powder feeding head 11, workbench 12 etc. constitute, now formed bridging REPAIR WELDING body 7 bottom through slot 4, and version to be repaired is blind slot 13.Injuring part 1 is fixed on table 12, coaxial powder feeding head 11 moves according to path planning and sends into powder to blind slot 13, the laser that laser instrument 9 sends melts metal dust through light path system 10 focal heat, in the molten bath forming movement on welding matrix 7 of putting up a bridge, the mobile formation line of molten bath this point, line concentration becomes face, tired face adult, until completing the increasing material reparation of whole blind slot 13, form dummy 14.
Claims (8)
1. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material, is characterized in that:
(1) use dyeing inspection method to determine distribution and the trend of the penetrance damages such as crackle, and use profile minimum envelop method regularization polishing damage field；
(2) use carbide rotary tool to carry out grinding process, form the shape through slot relative to regularization；
(3) the optimization polishing of pulse welding groove: through slot groove is optimized polishing, and the Angle ambiguity of groove is between 30 ° ~ 60 °；
(4) through slot and the cleaning of groove thereof；
(5) the pulse welding lapping repair of through slot；
(6) the polishing of bridging REPAIR WELDING body and cleaning；
(7) the laser gain material reparation of damaged structure: formed bridging REPAIR WELDING body bottom through slot, structure to be repaired is blind slot shape, completes the laser gain material reparation of whole blind slot, it is achieved the three-dimensional reparation of damaged structure.
2. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: used dyeing inspection method to determine distribution and the trend of the penetrance damages such as crackle before repairing, and use profile minimum envelop method regularization polishing damage field.
3. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, is characterized in that:
Using carbide rotary tool to carry out grinding process, form the shape through slot relative to regularization, limit polishing edge coloring inspection, until the penetrance damages such as crackle are removed in polishing completely.
4. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: the optimization polishing of pulse welding groove: through slot groove is optimized polishing, and the Angle ambiguity of groove is between 30 ° ~ 60 °.
5. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: use Precision Pulse welding machine, manual operation welding gun carries out welding of putting up a bridge to through slot, forming the bridging REPAIR WELDING body accepting laser repairing molten bath, THICKNESS CONTROL is at more than 1mm.
6. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: use carbide rotary tool that bridging REPAIR WELDING body is polished, remove surface oxide layer, make bridging REPAIR WELDING surface smooth；And use acetone to be cleaned up by bridging REPAIR WELDING body, remove surface and oil contaminant.
7. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: on the basis of bridging REPAIR WELDING body, threedimensional model according to structure to be repaired, in conjunction with dissimilar material properties, plan that suitable scanning pattern coupling reasonably repair parameter, use laser gain material repaired item that structure to be repaired is carried out three-dimensional reparation.
8. the thin-wall part combined-repair method repaired based on pulse welding and laser gain material described in a Ju claim 1, it is characterized in that: use Precision Pulse welding machine to realize the bridging welding of through slot, and use laser repairing equipment to realize the three-dimensional reparation of structure to be repaired.
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| CN201610346139.0A CN105904151B (en) | 2016-05-24 | 2016-05-24 | Thin-wall part combined-repair method based on pulse welding and laser gain material reparation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107097036A (en) * | 2017-05-24 | 2017-08-29 | 西北工业大学 | Metal parts restorative procedure based on increase and decrease material manufacture |
| CN108213713A (en) * | 2016-12-14 | 2018-06-29 | 北京有色金属研究总院 | A kind of thin-wall part combined-repair method for increasing material based on pulse laser and continuous laser |
| CN109338357A (en) * | 2018-11-23 | 2019-02-15 | 西安航天发动机有限公司 | A kind of Laser Melting Deposition restorative procedure of metal casting rejected region |
| CN109967878A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院宁波材料技术与工程研究所 | Laser crack forming mechanism system and laser method for repairing crack |
| CN112517909A (en) * | 2019-09-17 | 2021-03-19 | 中国航发商用航空发动机有限责任公司 | Manufacturing method of profiling thickened plate for laser forming repair of thin-wall structure |
| CN114434086A (en) * | 2021-12-26 | 2022-05-06 | 国营四达机械制造公司 | Method for repairing surface cracks of titanium alloy thin-walled workpiece |
| CN116652704A (en) * | 2023-07-28 | 2023-08-29 | 中国人民解放军空军工程大学 | Composite repair method for self-adapting to appearance of aircraft structure |
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| RU2384396C1 (en) * | 2008-07-25 | 2010-03-20 | Государственное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Method of inhibiting growth of cracks in thin sheet material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107097036B (en) * | 2017-05-24 | 2019-09-24 | 西北工业大学 | Metal parts restorative procedure based on increase and decrease material manufacture |
| CN109967878A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院宁波材料技术与工程研究所 | Laser crack forming mechanism system and laser method for repairing crack |
| CN109338357A (en) * | 2018-11-23 | 2019-02-15 | 西安航天发动机有限公司 | A kind of Laser Melting Deposition restorative procedure of metal casting rejected region |
| CN109338357B (en) * | 2018-11-23 | 2021-03-05 | 西安航天发动机有限公司 | Laser melting deposition repair method for metal casting defect part |
| CN112517909A (en) * | 2019-09-17 | 2021-03-19 | 中国航发商用航空发动机有限责任公司 | Manufacturing method of profiling thickened plate for laser forming repair of thin-wall structure |
| CN112517909B (en) * | 2019-09-17 | 2022-10-04 | 中国航发商用航空发动机有限责任公司 | Manufacturing method of profiling thickened plate for laser forming repair of thin-wall structure |
| CN114434086A (en) * | 2021-12-26 | 2022-05-06 | 国营四达机械制造公司 | Method for repairing surface cracks of titanium alloy thin-walled workpiece |
| CN116652704A (en) * | 2023-07-28 | 2023-08-29 | 中国人民解放军空军工程大学 | Composite repair method for self-adapting to appearance of aircraft structure |
| CN116652704B (en) * | 2023-07-28 | 2023-10-31 | 中国人民解放军空军工程大学 | Composite repair method for self-adapting to appearance of aircraft structure |
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