Heterogeneous intermetallic compound additive processing equipment and processing method thereof

A technology of dissimilar metals and processing equipment, applied in metal processing equipment, additive processing, welding equipment and other directions, can solve the problems of component segregation of complex special-shaped components, hindered stability of molten pool, affecting the performance of complex special-shaped components, etc. It is conducive to the uniform mixing of elements, slowing down the solidification rate and prolonging the existence time.

Active Publication Date: 2022-08-05
湖南湘投金天科技集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in the melting characteristics and wire feeding speed of the two welding wires, the heat source and the stability of the molten pool during the additive manufacturing process are hindered. The final performance of complex special-shaped components

Method used

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  • Heterogeneous intermetallic compound additive processing equipment and processing method thereof
  • Heterogeneous intermetallic compound additive processing equipment and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] This embodiment provides a heterogeneous intermetallic compound additive processing method.

[0073] In this example, a TiAl intermetallic compound member having a length of 150 mm, a width of 3 mm and a height of 50 mm was fabricated.

[0074] A heterogeneous intermetallic compound additive processing method, comprising the following steps:

[0075]The first welding power source 1 is selected as a laser, and the second welding power source is selected as a TIG arc heat source.

[0076] Step 1: Select a pure titanium plate with a thickness of 10 mm for the substrate, install and fix the substrate on the heating plate 6, and the heating plate 6 works and heats the pure titanium plate to 450° C. and then starts to keep warm.

[0077] Step 2: Load the trajectory of the additive sample into the control system, and determine the starting and ending positions. The control system can control the movement of the multi-directional motion mechanism according to the trajectory of...

Embodiment 2

[0088] This embodiment provides a heterogeneous intermetallic compound additive processing method.

[0089] In this example, a TiAl intermetallic compound member having a length of 150 mm, a width of 3 mm and a height of 50 mm was fabricated. A heterogeneous intermetallic compound additive processing method in this embodiment is basically the same as that in Embodiment 1, except that in Embodiment 2, the first welding power source 1 is selected as a TIG arc heat source, and the second welding power source is a TIG arc heat source. Among them, in the first welding power source 1, the peak current of the pulsed TIG arc is 250A, the base value current is 70A, the duty ratio is 60%, and the pulse frequency is 150Hz. Other steps and parameter settings in Example 2 are the same as those in Example 1. The TiAl intermetallic compound component of this embodiment has a uniform structure and no cracks.

Embodiment 3

[0091] This embodiment provides a heterogeneous intermetallic compound additive processing method.

[0092] The purpose of this example is to carry out surface cladding and deposition on the surface of the substrate (titanium plate).

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Abstract

The invention discloses dissimilar intermetallic compound additive processing equipment and a processing method thereof. The dissimilar intermetallic compound additive machining equipment comprises a heating plate, a first welding power source, a double-hole wire feeding contact tube, a first wire feeder, a second wire feeder and a second welding power source, the heating plate is used for containing a substrate, and the first welding power source is used for heating and melting an additive deposition layer on the substrate; the first wire feeder and the second wire feeder are both connected with the double-hole wire feeding contact tube and communicate with a first wire feeding hole and a second wire feeding hole of the double-hole wire feeding contact tube correspondingly, and the second welding power source can move and is used for heating and melting an additive deposition layer. The double-hole wire feeding contact tube, the first welding power source and the second welding power source are all arranged opposite to the heating plate. By means of the dissimilar intermetallic compound additive machining equipment, the structure property uniformity of a complex special-shaped component can be improved.

Description

technical field [0001] The invention relates to a heterogeneous intermetallic compound additive processing equipment and a processing method thereof. Background technique [0002] Intermetallic compounds such as Ti-Al series are obtained by combining two or more elements in a certain proportion. TiAl intermetallic compounds have the characteristics of anti-oxidation, high temperature resistance and corrosion resistance, suitable for use in the environment of 600 ° C - 1000 ° C, and are expected to become important materials for aero-engines. However, the room temperature plasticity of this intermetallic compound is poor, and the traditional intermetallic compound processing method is easy to cause defects such as cracks in the product components, especially for complex special-shaped components, the processing technology is complicated and the cost is high. [0003] At present, small batches of complex special-shaped components are generally produced by additive manufacturi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/04B23K9/095B23K9/133B23K26/342B23K26/70B33Y10/00B33Y30/00B23K103/10B23K103/14
CPCB23K9/167B23K9/133B23K9/095B23K9/04B23K26/342B23K26/702B33Y10/00B33Y30/00B23K2103/14B23K2103/10Y02P10/25
Inventor 李军兆杨胜向午渊温凯张慧杰欧阳涛肖芬
Owner 湖南湘投金天科技集团有限责任公司
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