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Powder feeding method and device for multi-material selective laser melting integral forming

A laser selective melting and integral forming technology, applied in the direction of additive processing, can solve problems such as single forming, achieve the effect of convenient operation, expand the scope of application, and break through limitations

Inactive Publication Date: 2016-01-13
SHANGHAI SPACE PRECISION MACHINERY RES INST
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Problems solved by technology

[0005] Aiming at the defect of forming a single material in the existing laser selective melting forming technology, the present invention provides a powder feeding method and device for multi-material laser selective melting integral forming

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  • Powder feeding method and device for multi-material selective laser melting integral forming

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0020] like figure 1 As shown, the embodiment of the present invention provides a multi-material laser selective melting integrated powder feeding device, including a laser 1, a powder storage cylinder 2, powder materials 3 and 8, a first solenoid valve 4, a second solenoid valve 9, Controller 5, scraper 6, liftable forming cylinder 7, scraper 6 is slidably installed on the upper end of liftable forming cylinder 7, laser device 1 is installed on the upper end of liftable forming cylinder 7 through...

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Abstract

The invention discloses a powder feeding method and device for multi-material selective laser melting integral forming. The device comprises a laser device, powder storage barrels, powder materials, electromagnetic valves, controllers, a scraper and a lifting forming cylinder. The scraper is mounted at the upper end of the lifting forming cylinder in a sliding mode. The laser device is mounted at the upper end of the lifting forming cylinder through a support. The powder storage barrels are symmetrically mounted on the two sides of the upper end of the lifting forming cylinder. The electromagnetic valves are mounted in powder discharging pipelines at the lower ends of the powder storage barrels. The powder storage barrels are filled with the powder materials. The electromagnetic valves are connected with the controllers. The device is convenient to operate; according to the requirements for material properties of different heights of formed parts, the selective laser melting equipment controllers send corresponding instructions to control closing of the electromagnetic valves and the initial position of the scraper, so that integral forming of dissimilar materials is achieved, the limitation that a single-material part is formed through selective laser melting is broken, and the application range of the technology is greatly widened.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping of metal components, in particular to a powder feeding method and device for integral forming of multi-material laser selective melting. Background technique [0002] Laser selective melting (SLM) forming technology is a method of direct forming of metal parts, and it is the latest development of rapid prototyping technology. This technology is based on the principle of layer-by-layer accumulation of discrete materials. According to the three-dimensional graphic data of the product, the high-energy laser beam is used to melt the raw material powder point by point, line by line, and layer by layer to directly manufacture parts. Compared with other metal additive manufacturing technologies, laser selective melting Forming technology has higher forming precision and less follow-up processing, and can form parts with higher complexity. It has become a leading technology for its structural an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y30/00
Inventor 姚斐姜勇金诚李中权邓竹君柯林达董文倩
Owner SHANGHAI SPACE PRECISION MACHINERY RES INST
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