Method for manufacturing particle reinforced metal-based composite part through double-wire plasma arc surfacing

A plasma arc and composite material technology, applied in plasma welding equipment, welding/cutting media/materials, manufacturing tools, etc., can solve the problems of low utilization rate of ceramic powder and difficulty of ceramic powder entering the molten pool, so as to improve production efficiency , the effect of good application prospects

Active Publication Date: 2017-09-01
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manufacturing process has the following problems: (1) The existing plasma arc deposition method generally uses the protective gas powder feeding method to send the powder to the molten pool area, and the utilization rate of the ceramic powder is low; (2) due to the

Method used

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  • Method for manufacturing particle reinforced metal-based composite part through double-wire plasma arc surfacing
  • Method for manufacturing particle reinforced metal-based composite part through double-wire plasma arc surfacing
  • Method for manufacturing particle reinforced metal-based composite part through double-wire plasma arc surfacing

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Effect test

Embodiment 1

[0035] Embodiment 1: In this embodiment, silicon carbide particle-reinforced aluminum matrix composite parts are manufactured by using twin-wire plasma surfacing additive, and the specific steps are as follows:

[0036] A. Preparation of flux-cored welding wire: the flux-cored welding wire 7 is prepared by rolling and drawing method, and the flux-cored welding wire 7 includes a flux core 7-1 and a shell 7-2. According to the components of the target composite material, the material of the drug core 7-1 and the material of the metal matrix of the shell 7-2 are selected. The component of the target composite material in this embodiment is a silicon carbide particle reinforced aluminum matrix composite material, and the drug core 7-1 is The mixture of silicon carbide ceramic powder and aluminum powder, the silicon carbide ceramic powder and aluminum powder are fully mixed by ball milling method, the ratio of silicon carbide ceramic powder and aluminum powder content is 1:2, the po...

Embodiment 2

[0047] Embodiment 2: In this embodiment, twin-wire plasma surfacing is used to add material to manufacture titanium carbide particle reinforced Inconel 625 alloy matrix composite material parts, and the specific steps are as follows:

[0048] A. Preparation of flux-cored welding wire: Prepare flux-cored welding wire 7 by rolling and drawing method. Flux-cored welding wire 7 includes flux core 7-1 and shell 7-2. Select the material and shell of flux core 7-1 according to the components of the target composite material 7-2 The material of metal matrix, the component of target composite material of this embodiment is titanium carbide particle reinforced Inconel 625 alloy matrix composite material, drug core 7-1 is titanium carbide ceramic powder and Inconel 625 alloy powder, adopts ball milling method to carbonize Titanium ceramic powder and Inconel 625 alloy powder are fully mixed, the content ratio of titanium carbide ceramic powder and Inconel 625 alloy powder is 1:3, the powde...

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Abstract

The invention discloses a method for manufacturing a particle reinforced metal-based composite part through double-wire plasma arc surfacing. Double wires are a flux-cored wire and a metal cored wire. The method comprises the steps that during surfacing: untransferable arcs are opened, a surfacing starting position is corrected, feeding position and feeding angle of the metal cored wire and the flux-cored wire are adjusted through a metal cored wire feeding mechanism and a flux-cored wire heating and feeding mechanism, transferred arcs are opened for surfacing, the metal cored wire feeding mechanism feeds the metal cored wire from the position in front of a welding gun to an arc column zone of a plasma arc, the metal cored wire is molten to form a molten pool, the flux-cored wire heating and feeding mechanism starts to feed the flux-cored wire after heating the flux-cored wire to 180 DEG C to 220 DEG C, feeding time of the flux-cored wire is delayed by 1 s to 2 s, after the metal cored wire forms the molten pool, the flux-cored wire is inserted into the molten pool from the position outside the arc column of the plasma arc, insertion depth is 2 mm to 3 mm, a robot controls the welding gun to perform surfacing layer by layer according to a set track under control of a control code, and the particle reinforced metal-based composite part is obtained through surfacing after the welding gun completes surfacing along the track.

Description

technical field [0001] The invention relates to the technical field of particle-reinforced metal-matrix composite materials and additive manufacturing, in particular to a method for manufacturing particle-reinforced metal-matrix composite material parts by twin-wire plasma arc surfacing welding. Background technique [0002] In recent years, with the vigorous development of additive manufacturing technology, the technology and application research of using additive technology to manufacture particle-reinforced metal matrix composite parts continues to increase. Additive manufacturing technology integrates the preparation of particle-reinforced metal matrix composites and shape manufacturing, and has the advantages of short process, high efficiency and low cost. [0003] Particle-reinforced metal matrix composites have both the plasticity and toughness of metals and the high strength and high stiffness of ceramics, thus showing physical and mechanical properties different fro...

Claims

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Application Information

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IPC IPC(8): B23K10/02B23K35/40
CPCB23K10/027B23K35/406
Inventor 柏兴旺龚郡潘风清
Owner NANHUA UNIV
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