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Holographic ultrasonic field self-forming additive manufacturing method and device

An additive manufacturing and self-forming technology, applied in the field of holographic ultrasonic field self-forming additive manufacturing, can solve the problems of easy bonding and printing of cured photosensitive resin, failure, slow replenishment of liquid photosensitive resin, etc.

Active Publication Date: 2018-09-18
JILIN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The invention provides a self-forming additive manufacturing method and device for a holographic ultrasonic field to solve the problem of curing defects or waiting time caused by the current cured photosensitive resin being easily bonded to the glass window at the bottom of the liquid storage tank, causing printing failure, and slow liquid photosensitive resin replenishment. Long process and other problems, while ensuring the curing speed and effect, to achieve high-speed, efficient and high-quality additive manufacturing

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Embodiment Construction

[0066] The invention is a self-forming additive manufacturing method for a holographic ultrasonic field, which uses common liquid resins as raw materials and combines photoinitiators to realize the polymerization and curing of common liquid resins. The ultrasound generated by the ultrasonic transducer can create a precise spatial ultrasonic field in space through the holographic acoustic lens. Each plane in the precise spatial ultrasonic field has a large number of acoustic potential wells, and the same plane acoustic potential wells constitute a target two-dimensional figure, the acoustic potential wells Capture the photoinitiator sprayed around, gather the surrounding ordinary liquid resin at the same time, realize the polymerization and curing of the surrounding ordinary liquid resin triggered by the photoinitiator through ultraviolet light irradiation, and complete the curing of a single plane; change the ultrasonic transducer holographic acoustic lens to the liquid surface ...

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Abstract

The invention relates to a manufacturing method and device for a holographic ultrasonic field face self-formed additive, and belongs to the field of additive manufacturing. Ordinary liquid resin serves as a formed part body material, a photoinitiator is solid powder capable of triggering ordinary liquid photosensitive resin to be subjected to monomer polymerization and curing, a geometrical configuration of a needed formed part is designed according to a computer, and a printing file and a holographic image file are generated through the design model data and transmitted to the manufacturing device for the holographic ultrasonic field face self-formed additive. A holographic sound lens forms a given distribution precise ultrasonic field on the surface of the ordinary liquid resin under the action of an ultrasonic transducer, the photoinitiator dispersed near the ultrasonic field is gathered and automatically forms a given shape, an ultrasonic lamp sweeps and irradiates the surface of the ordinary liquid resin, rapid curing of the ordinary liquid resin around the photoinitiator is achieved, stacked additive manufacturing is conducted according to the printing file, manufacturing of the holographic ultrasonic field face self-formed additive of the needed part is achieved, and the quality of the formed part is improved.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a method and device for self-forming additive manufacturing of a holographic ultrasonic field. Background technique [0002] Additive manufacturing technology uses the method of gradually accumulating materials for physical manufacturing. Compared with traditional processing technologies such as subtractive manufacturing and equal material manufacturing, it greatly reduces the processing steps and processing tools, and shortens the processing time and manufacturing cycle of products. , to achieve rapid and precise manufacturing of complex parts while realizing green manufacturing, which plays a positive role in promoting product innovation and shortening the research and development cycle. [0003] Stereolithography Additive Manufacturing (SLA) is a laser with a specific wavelength and curing intensity, using liquid photosensitive resin as a raw material. The process flow i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/135B29C64/386B33Y50/00
CPCB33Y50/00
Inventor 吴文征刘巍李桂伟蒋吉利杜海东赵继任露泉
Owner JILIN UNIV
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