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Laser-cladding etching preparation method for 3D-printing formed part

A technology of laser cladding and 3D printing, which is applied in the direction of additive manufacturing, improvement of process efficiency, energy efficiency, etc., to achieve high degree of automation, large adjustable range of roughness and hole distribution density, improved wear resistance and lubrication performance effect

Active Publication Date: 2016-09-14
四川三阳激光增材制造技术有限公司
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Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a preparation method for laser cladding and etching of 3D printing formed parts, which has the advantages of reducing processing time, improving operation efficiency, and wear resistance of formed parts. It has the advantages of improved overall performance and lubricating performance, overcomes the problem of poor lateral forming accuracy of additive manufacturing formed parts, and greatly improves the hardness of the edge of the hole, making it reliable in performance, stable in operation, noise-free, and pollution-free in practical applications. Effect

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Embodiment Construction

[0022] Attached below Figure 1-2 A preparation method for laser cladding and etching of 3D printed shaped parts according to the present invention will be described in detail.

[0023] A preparation method for laser cladding etching of 3D printed parts, the preparation method comprising the following steps,

[0024] 1) Powder feeding: Use acetone to clean and absolute ethanol to clean the surface of the metal or alloy substrate, and dry it with cold air; use a sandblasting machine or a polishing machine to uniformly roughen the surface of the cleaned metal or alloy substrate, so that Its surface roughness Ra<5-10μm; according to the functional design requirements of formed parts, calculate the distribution ratio of each component in the composite powder at different positions, and use a ball mill to fully and uniformly mix the composite powder, and place the mixed powder in a 100- Dry in a drying oven at 200°C for 1-1.5 hours; place the dried powder in the powder cylinder of...

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Abstract

The invention relates to a laser-cladding etching preparation method for a 3D-printing formed part. The laser-cladding etching preparation method comprises the steps that 1 powder is fed; 2, layered slicing treatment is performed; 3, layered laser cladding is performed; 4, layered multi-scale porous structure laser etching treatment is performed; 5, after all the above steps are completed, a worktable controls a laser device of a 3D printer, an inert gas shielding device and a powder feeder to be in a closed state, and abrasion resistance and / or lubricity detection are conducted on the finally formed part. The laser-cladding etching preparation method adopts the laser cladding for additive material manufacturing, is assisted by high-precision laser etching to manufacture special multi-scale porous surface structure parts, has the advantages that the machining time can be shortened, the operation efficiency can be improved, the abrasion resistance and lubricity of the formed parts can be wholly improved, the problem of poor lateral forming precision of the formed parts due to additive material manufacturing is solved, pore edge hardness is greatly improved, and the laser-cladding etching preparation method can be reliable in performance, stable in operation, free of noise and pollution in the actual application process and the like.

Description

technical field [0001] The invention relates to the technical field of forming and manufacturing of 3D printing metal parts, in particular to a preparation method for laser cladding and etching of 3D printing formed parts. Background technique [0002] 3D printing technology has become one of the most concerned emerging technologies in the world. This emerging technology, together with other digital production models, has accelerated the development of manufacturing. The new technology of additive manufacturing technology is developing at an unprecedented speed. Among them, laser cladding has attracted special attention because of its advantages over other laser additive manufacturing technologies. Laser selective sintering / laser selective melting (SLS / SLM) and laser near-net shaping (LENS, laser cladding LCD) both use metal powder as the material to form metal parts. However, there is a big difference between the two. The former uses a powder bed and cannot form larger par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F3/24B33Y10/00
CPCB22F3/24B33Y10/00B22F2003/247B22F10/00B22F10/38B22F12/45B22F10/25B22F10/36B22F10/366B22F10/50B22F10/32Y02P10/25
Inventor 顾德阳
Owner 四川三阳激光增材制造技术有限公司
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