A kind of inertial friction welding method of aeroengine turbine disk and shaft
An aero-engine, friction welding technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., to achieve the effect of high welding efficiency, small processing volume, and high material utilization rate
Inactive Publication Date: 2016-07-20
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
[0012] Aiming at the problems existing in the prior art, the present invention provides an inertial friction welding method for the turbine disk and shaft of the aero-engine, which solves the shortcomings of the existing processing technology, can ensure the various performance requirements of the components, and meet the production requirements of the aero-engine. Manufacturing requirements
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[0026] The turbine disk and shaft components are separate parts before welding, including turbine disk part 1 and shaft part 2, and the material models of turbine disk part 1 and shaft part 2 are both GH4169, and the welding equipment is inertial friction welding machine.
[0027] Described a kind of inertial friction welding method of aero-engine turbine disc and shaft, comprises the following steps:
[0028] Step 1: Before welding the turbine disc part 1 and the shaft part 2, it is necessary to polish the surface to be welded at the weld to remove the oxide layer on the surface, and then use acetone to remove the oil on the surface to be welded;
[0029] Step 2: Clamp and fix the turbine disk part 1 to the tailstock side of the welding machine, first clamp the main clamping surface 5 of the turbine disk part to ensure that the turbine disk part 1 does not rotate during the welding process, and then clamp the turbine The auxiliary clamping surface 6 of the disk part controls ...
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The invention provides an inertia friction welding method for an aeroengine turbine disk and a shaft, and belongs to the technical field of aeroengine part manufacturing. A conventional mode is adopted for processing and producing turbine disk and shaft components, and various defects, including great component processing quantity, low material utilization rate, influence on the engine thrust-weight ratio performance and service life, welding seam quality instability, wide welding heat influence region, non-compliance of welding seam intensity indexes and the like, exist. The inertia friction welding method has the advantages that the defects in the prior art are overcome, each performance requirement of the components can be ensured, the component processing quantity is small, the material utilization rate is high, the engine thrust-weight ratio performance and service life cannot be influenced, the welding seam quality is stable, and the intensity index of the welding seam is suitable for the component body, and the aeroengine producing and manufacturing requirements are completely met.
Description
technical field [0001] The invention belongs to the technical field of aero-engine component manufacturing, in particular to an inertia friction welding method for an aero-engine turbine disc and shaft. Background technique [0002] At this stage, in the manufacturing process of aero-engines, there are only the following processing methods for the turbine disk and shaft components: [0003] ①Using integral forging and integral processing methods [0004] Due to the complex structure of the component, the diameter of the middle disc is large, and the diameter of the two ends of the disc is small. Since the material type of the turbine disc and the shaft component are both GH4169, it is difficult to guarantee the deformation rate of this type of material in the direct aging state for the performance of the overall forging. Requirements, and the processing volume of components is large, and the utilization rate of materials is low; [0005] ②Mechanical connection methods such...
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IPC IPC(8): B23K20/12
CPCB23K20/129B23K20/24
Inventor 刘佳涛祝文卉帅焱林曲伸李晓光
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION