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Additive manufacturing equipment and manufacturing method for titanium alloy structural part

A technology of additive manufacturing and titanium alloy, which is applied in the field of additive manufacturing equipment and preparation of titanium alloy structural parts, can solve the problems of poor mechanical properties, high production cost of structural parts, low efficiency, etc., and achieve good product performance and low cost. Low, efficient effect

Active Publication Date: 2021-03-02
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a kind of additive manufacturing equipment and manufacturing method of titanium alloy structural parts, which can achieve material addition in two states of melting-clad and solid-state plastic deformation-clad or a combined process of the two states by forging Manufacturing, which effectively solves the problems of poor mechanical properties, many impurities, difficulty in forming structural parts with complex shapes, high production costs and low efficiency in parts produced by existing additive manufacturing technologies

Method used

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  • Additive manufacturing equipment and manufacturing method for titanium alloy structural part
  • Additive manufacturing equipment and manufacturing method for titanium alloy structural part
  • Additive manufacturing equipment and manufacturing method for titanium alloy structural part

Examples

Experimental program
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Effect test

Embodiment 1

[0050] figure 1 , figure 2 It is a schematic structural diagram of an additive manufacturing equipment for a titanium alloy structural part according to an embodiment of the present invention; image 3 It is a schematic diagram of the structure of a heating wire feeding device. like figure 1 , 2 As shown, the device includes a numerical control slide rail 1 and an integrated print head 12. The integrated print head 12 includes a metal cladding part 10 and a forging part 11, and the metal cladding part 10 and the forging part 11 are respectively fixed on the numerical control slide rail superior.

[0051] The forging part 11 includes an air hammer 2 and a forging head 3 , and the forging head 3 is installed at the end of the air hammer 2 .

[0052] The metal cladding component 10 includes a heating wire feeding device 4 and a heating wire feeding device bracket 5 , and the heating wire feeding device bracket 5 is fixed on the numerical control slide rail 1 .

[0053] Hea...

Embodiment 2

[0063] On the basis of Embodiment 1, the guide sleeve 8 is made of high temperature resistant ceramic material.

[0064] The additive manufacturing method for titanium alloy structural parts applicable to the additive manufacturing equipment for titanium alloy structural parts of Example 2 includes the following steps:

[0065] 1) According to the shape of the formed parts, the parts are layered, the trajectory is designed, and the control program is formed;

[0066] 2) The additive manufacturing equipment is placed in a vacuum environment, the induction heating coil 9 is turned on, and the titanium alloy wire is heated to a cladding state of 1800° C. to 2000° C., and then the wire feed roller 7 drives the titanium alloy wire to move and cladding. onto the preform;

[0067] 3) Turn on the air hammer 2 and drive the forging head 3 to forge, deform and connect the just-coated titanium alloy material to realize the connection between the titanium alloy material and the preform; ...

Embodiment 3

[0072] On the basis of Embodiment 1, the guide sleeve 8 is made of high temperature resistant ceramic material.

[0073] The additive manufacturing method for titanium alloy structural parts applicable to the additive manufacturing equipment for titanium alloy structural parts of Example 2 includes the following steps:

[0074] 1) According to the shape of the formed parts, the parts are layered, the trajectory is designed, and the control program is formed;

[0075] 2) The additive manufacturing equipment is placed in a vacuum environment, and when the part within the boundary of the two-dimensional pattern after the part is layered is formed, the induction heating coil 9 is turned on, and the titanium alloy wire is heated to 800 ℃ ~ 1000 ℃ plastic state, and then the wire feed roller 7 drives the titanium alloy wire to move, and lays it on the preform;

[0076] 3) At the same time, the air hammer 2 drives the forging head 3 to forge, deform and connect the just-coated titan...

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Abstract

The invention relates to additive manufacturing equipment and a method for a titanium alloy structural part. The additive manufacturing equipment adopts an integrated printing head and comprises a metal laying part and a forging part, and the metal laying part and the forging part are fixed to a numerical control sliding rail; the metal laying part comprises a heating wire feeding device and a heating wire feeding device bracket; the forging part comprises an air hammer and a forging head; and the heating wire feeding device comprises a metal wire, wire feeding rollers, a guide sleeve and an induction heating coil. According to the additive manufacturing equipment and method, the forging technology is introduced into the additive manufacturing process, additive manufactured parts with theforging mechanical property are achieved in the two states of fusion-cladding and solid plastic deformation-laying, and the problems existing in an existing additive manufacturing technique based on the fusion cladding and friction welding technologies are effectively solved; and the mechanical property of the parts produced in an additive manufacturing mode is improved, introduced impurities arereduced, the production capacity of part products with complex structures is improved, meanwhile, the cost can be reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metal additive manufacturing, in particular to an additive manufacturing equipment for titanium alloy structural parts and a preparation method thereof. Background technique [0002] At present, the commonly used metal additive manufacturing methods mainly use heat sources such as lasers and electron beams, and use powder, wire, etc. as raw materials to form metal parts such as titanium alloys by wire feeding, powder feeding or powder spreading, such as selective laser melting. (SLM), Electron Beam Selective Melting (SES), Electron Beam Sintering (EBF), etc., are all additive manufacturing methods based on the metal cladding process. In order to achieve the melting of titanium alloys, in addition to using laser, electron beam and other methods to melt metals, vacuum arc consumable melting, electroslag remelting, electron beam melting, plasma melting, vacuum induction melting and other methods can also be ...

Claims

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Application Information

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IPC IPC(8): B22F10/18B22F12/00B22F10/66B22F10/64B22F12/10B21J5/00B33Y10/00B33Y30/00B33Y40/20
CPCB22F3/003B22F3/24B21J5/002B33Y10/00B33Y30/00B33Y40/20B22F2003/248Y02P10/25
Inventor 赵冰李志强
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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