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Welding gun offset determining method for arc-welding remanufacturing of plate-like titanium alloy wear-out part

A technology to determine the method and offset, applied in the direction of manufacturing tools, arc welding equipment, electrode characteristics, etc., can solve the problems of difficult process parameters, narrow application range, cumbersome calculations, etc., to achieve strong controllability, strong applicability, and reduce The effect of heat input

Inactive Publication Date: 2017-09-22
ACADEMY OF ARMORED FORCES ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the wear and repair problem of plate titanium alloy parts, the present invention provides a method for determining the torch offset for arc welding remanufacture of plate titanium alloy wear parts. Taking the accumulation amount per unit length and unit time as parameters, quickly determine the welding overlap amount (welding torch offset) under the sequential accumulation and filling accumulation at different accumulation rates, which solves the time-consuming and time-consuming problem of determining the welding torch offset. Problems such as cumbersome calculation, narrow scope of application, and difficult control of process parameters have improved the geometrical dimension accuracy and tissue uniformity of MIG arc welding additive remanufacturing of plate titanium alloy parts, shortened the remanufacturing cycle, and saved repair materials

Method used

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  • Welding gun offset determining method for arc-welding remanufacturing of plate-like titanium alloy wear-out part
  • Welding gun offset determining method for arc-welding remanufacturing of plate-like titanium alloy wear-out part

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Effect test

Embodiment 1

[0033] Use the inventive method for determining the offset of the welding torch for the arc welding remanufacture of plate titanium alloy wear parts to repair the wear of plate titanium alloy parts (wear area: 20mm×30mm, maximum depth 1.3mm), and the diameter of the welding wire is 0.8mm, and the sequential stacking method is used for remanufacturing and forming repair, P 堆积 Use 4mm 2 At this time, the selected process parameters are wire feeding speed 6.5m / min, welding speed 13.6mm / s, welding torch offset of the second pass (relative to the first weld seam) L 偏 The value calculation method is: (0.95~1.05)(2.1+0.007P 堆积 2 )mm, the value range is 2.1mm~2.32mm, choose 2.1mm, and weld the worn area in turn.

[0034] Compared with the traditional welding repair, the welding torch offset can be directly determined by the accumulation rate, no preliminary test is required, the heat input is low, the welding repair has good formability, smooth surface, less fish scales, dense stru...

Embodiment 2

[0036] Use the inventive method for determining the offset of the welding torch for arc welding remanufacturing of plate titanium alloy wear parts to repair the wear of plate titanium alloy parts (wear area: 30mm×40mm, maximum depth 1.1mm), and the diameter of the welding wire 1.2mm, using sequential stacking method for remanufacturing and forming repair, P 堆积 Use 30mm 2 At this time, the selected process parameters are wire feeding speed 10.0m / min, welding speed 6.28mm / s, welding torch offset of the second pass (relative to the first weld seam) L 偏 The value calculation method is: (0.95~1.05)(2.1+0.007P 堆积 2 )mm, the value range is 7.98mm~8.82mm, choose 8.82mm, and perform welding repair on the worn area in turn.

[0037] Compared with the traditional welding repair, the method of determining the offset of the welding torch is fast, simple and convenient, with low heat input, no flow phenomenon, small thermal influence, and good flatness after repair of the worn surface. W...

Embodiment 3

[0039] Use the inventive method for determining the offset of the welding torch for arc welding remanufacturing of plate titanium alloy wear parts to repair the wear of plate titanium alloy parts (wear area: 50mm×60mm, maximum depth 1.2mm), and the diameter of the welding wire 1.0mm, using sequential stacking method for remanufacturing and forming repair, P 堆积 Choose 16mm 2 At this time, the selected process parameters are wire feeding speed 10.0m / min, welding speed 8.18mm / s, welding torch offset of the second pass (relative to the first weld seam) L 偏 The value calculation method is: (0.95~1.05)(2.1+0.007P 堆积 2 )mm, the value range is 3.70mm~4.09mm, choose 3.85mm, and weld the worn area in turn.

[0040] Compared with traditional welding repair, there is no need for trial welding, and no need to measure weld reinforcement and weld width. Within the determined welding parameter range, the welding torch offset can be quickly determined according to the accumulation rate, whi...

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Abstract

The invention relates to the technical field of stack welding repairing technologies, in particular to a welding gun offset determining method for arc-welding remanufacturing of a plate-like titanium alloy wear-out part. The welding gun offset determining method for arc-welding remanufacturing of the plate-like titanium alloy wear-out part comprises the steps that when a stacking rate P<stacking> is greater than or equal to 4 mm<2> and smaller than or equal to 30 mm<2> and a sequential-stacking method is adopted, the welding gun offset in the welding process of a later weld joint is (0.95-1.05) (2.1 + 0.007P<stacking><2>) mm, and the welding gun offset is a welding gun offset corresponding to a former weld joint; and when the stacking rate P <stacking> is greater than or equal to 4 mm<2> and smaller than or equal to 30 mm<2> and a filling-stacking method is adopted, the welding gun offset in the welding process of the later welding joint is (1.90-2.10) (2.1 + 0.007P<stacking><2>) mm, and the welding gun offset is the welding gun offset corresponding to the former weld joint.

Description

technical field [0001] The invention relates to the technical field of surfacing welding repair technology, in particular to a method for determining a welding torch offset used for arc welding remanufacturing of plate titanium alloy wearing parts. Background technique [0002] Titanium alloy materials have the advantages of low density, strong corrosion resistance, and high mechanical strength. Cutting-edge technology and key technology fields such as detection and national defense have been more and more widely used. [0003] Following this, the problem of failure and scrapping of titanium alloy parts has become increasingly prominent, and a large number of plate parts have become invalid and scrapped due to large-scale wear on the surface. Common surface wear repair methods include laser repair, electron beam repair, and argon tungsten arc welding repair. However, laser repair has problems such as expensive equipment, easy powder sticking to the repaired surface, and po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/28B23K9/04B23K9/173G06F17/50
CPCB23K9/04B23K9/173B23K9/28G06F30/17
Inventor 曹勇朱胜王晓明周朝极杜文博韩冰源
Owner ACADEMY OF ARMORED FORCES ENG PLA
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