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3D printing additive manufacturing method of Ti6Al4V injection molding feedstock

A 3D printing and additive manufacturing technology, applied in the manufacture of titanium alloy parts, Ti6Al4V injection molding feed 3D printing additive manufacturing field, can solve the problems affecting the use of parts, uneven filling, flow lines and other problems, to improve Application, strong comprehensive mechanical properties, good surface quality effect

Inactive Publication Date: 2017-07-28
东莞市依诺电子科技有限公司
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Problems solved by technology

[0004] However, titanium alloy parts prepared by the existing Ti6Al4V metal powder injection molding technology often have defects such as flow lines and uneven filling during the injection molding stage, and serious deformation defects will appear during the sintering process. The process is difficult to solve, thus seriously affecting the use of parts

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  • 3D printing additive manufacturing method of Ti6Al4V injection molding feedstock

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and examples, and the contents of the examples are not intended to limit the protection scope of the present invention.

[0027] The invention relates to a Ti6Al4V injection molding feeding material 3D printing additive manufacturing method. In the present invention, the 3D printing additive manufacturing method comprises the following steps:

[0028] First, the metal powder and binder are selected.

[0029] To 3D print, suitable raw materials must be selected to prepare the feed. In the present invention, the selected metal powder is Ti6Al4V titanium alloy powder with a particle size of 16-26 microns. The selected adhesive is a plastic-based adhesive. Preferably, the plastic-based binder is a mixture of POM, PE, EVA, SA and PW. Among them, the mass percentage of each component is: POM 75%-89%; PE 4%-10%; PW 3%-10%P; SA 2%-8%; EVA 1%-10%. The choice of this metal pow...

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Abstract

The invention relates to a 3D printing additive manufacturing method of Ti6Al4V injection molding feed, which comprises the following steps: 1), selecting metal powder and binder; 2), using the selected metal powder and binder to prepare feed 3) using the feeding materials in the 3D printer to directly print titanium alloy parts; 4) degreasing and sintering the printed titanium alloy parts. The invention directly adopts injection molding feeding materials to 3D print titanium alloy parts, which solves the problems of flow lines and insufficient filling in the injection molding stage of injection molding technology, so that the parts after sintering and post-processing have good surface quality and low size. High precision and strong comprehensive mechanical properties further improve the application of 3D printing technology in the field of aviation manufacturing.

Description

technical field [0001] The invention belongs to the technical field of aviation manufacturing, and relates to a method for manufacturing titanium alloy parts, in particular to a Ti6Al4V injection molding feeding material 3D printing additive manufacturing method. Background technique [0002] In the aviation field, such as various parts of aircraft, parts made of titanium alloys are usually required, especially Ti6Al4V titanium alloy parts. [0003] The existing manufacturing method of Ti6Al4V titanium alloy parts usually adopts Ti6Al4V metal powder injection molding technology. The existing process steps of Ti6Al4V metal powder injection molding mainly include: selection of metal powder and binder, preparation of feed material, injection molding, degreasing and sintering, and post-treatment. [0004] However, titanium alloy parts prepared by the existing Ti6Al4V metal powder injection molding technology often have defects such as flow lines and uneven filling during the in...

Claims

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Application Information

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IPC IPC(8): B22F3/115B33Y10/00
CPCB22F3/115B33Y10/00
Inventor 邓瑞祥
Owner 东莞市依诺电子科技有限公司
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