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A laser additive device and method for additive manufacturing thereof

A laser additive and laser device technology, which is applied in the directions of additive manufacturing, additive processing, and process efficiency improvement, can solve the problems of inability to discharge gas, segregation of molten pool elements, and uneven structure, and achieves suppression of metallurgical defects, energy and energy. And the effect of uniform distribution of temperature field and uniform stirring

Inactive Publication Date: 2020-02-21
JIANGSU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a laser additive manufacturing device and its additive manufacturing method, which can solve defects such as prone to element segregation inside the molten pool, unable to discharge gas, uneven structure, and concentrated thermal stress.

Method used

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  • A laser additive device and method for additive manufacturing thereof
  • A laser additive device and method for additive manufacturing thereof
  • A laser additive device and method for additive manufacturing thereof

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0041] Such as figure 1 and figure 2 As shown, the laser additive device of the present invention includes a rotating beam laser device, a high-frequency short-pulse laser device, an auxiliary current device, an information collection system, a high-frequency induction heating system, and a control computer 15 .

[0042] The rotating beam laser device comprises a continuous laser generator 1, a first high-precision mechanical arm 2, a wire feeder 6 and a continuous laser head 9; the continuous laser generator 1 is connected to the continuous laser head 9 to provide Continuous laser light source; the optical rotation module is built in the laser head 9 of the continuous laser, and the laser beam generates a rotating beam during the emission process; the laser head 9 of the...

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Abstract

The invention provides a device for adding materials by laser, which includes a rotating beam laser system, a high-frequency short pulse laser system and an auxiliary current system; Melted and deposited on the surface of the substrate; the high-frequency short-pulse laser system outputs a high-frequency short-pulse laser, and the high-frequency short-pulse laser is used to input pulsed laser beams into the molten pool; the auxiliary current system is used to make the filament It forms a current loop with the molten pool, which is used to directly generate strong electromagnetic force inside the molten pool. The rotating beam laser system includes a continuous laser generator, a first high-precision mechanical arm and a continuous laser laser head; the high-frequency short-pulse laser system includes a high-frequency short-pulse laser generator, a high-frequency short-pulse laser head and a second High-precision mechanical arm. The invention can solve defects such as element segregation easily occurring inside the molten pool, gas cannot be discharged, uneven structure, thermal stress concentration and the like.

Description

technical field [0001] The invention relates to the technical field of laser additive manufacturing, in particular to a laser additive manufacturing device and a method for additive manufacturing thereof. Background technique [0002] Additive manufacturing technology, also known as 3D printing technology, has attracted the attention of many scholars in recent years and is called "the third industrial revolution". Among many additive manufacturing methods, laser additive manufacturing (LAM) is a relatively advanced manufacturing method for preparing net-shape metal components with excellent performance. It has been widely used in automobiles, aerospace, military equipment and medical treatment. . At present, many scholars at home and abroad have made great progress in the research field of laser additive manufacturing technology. Using this technology, alloy components of nickel-based alloys, titanium alloys, stainless steel and other materials with good performance have be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F12/43B22F12/45B22F10/25B22F12/90B22F10/36B22F10/38B22F12/17B22F12/33B22F10/20Y02P10/25
Inventor 任旭东童照鹏周王凡陈兰焦加飞
Owner JIANGSU UNIV
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