Laser-based inside-laser coaxial wire-feeding additive manufacturing system and forming method

A coaxial wire feeding and additive manufacturing technology, applied in the field of additive manufacturing, can solve problems such as uneven energy distribution, uneven laser energy distribution, and unfavorable molding.
CN109530918AInactive Publication Date: 2019-03-29NAT INST CORP OF ADDITIVE MFG XIAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT INST CORP OF ADDITIVE MFG XIAN
Publication Date
2019-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a laser-based inside-laser coaxial wire-feeding additive manufacturing system and a forming method. The laser-based inside-laser coaxial wire-feeding additive manufacturing system is formed by a laser, a wire feeder mechanism, a movement actuating mechanism, a molten pool shape monitoring feedback module and a system control module. After a part model is cut into slices, aninitial path is planned, input parameters and technological parameters in a technology database are compared, the molten pool temperature corresponding to technological parameters and input technology parameters under different feature structures is optimized, printing parameters and a robot code under an optimal path are generated, a high-speed infrared camera acquires molten pool shape parameters during the printing process and transmits to the system control module, the system control module compares the acquired molten pool shape data and the technology data of the technology database module, meanwhile, the molten pool temperature change is monitored, and the molten pool temperature is corrected through feedback-adjusting laser power and is monitored and feedback-adjusted in real time, so that the molten pool shape is uniform and consistent and the printing process is stably controlled during the printing process.
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Description

technical field

[0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to an additive manufacturing system and a molding method based on laser light internal coaxial wire feeding. Background technique

[0002] Laser additive manufacturing is an advanced manufacturing and processing technology. It uses laser as the heat source, powder or wire as the deposition raw material, generates a molding path according to the three-dimensional model, and prints layer by layer, and finally prints three-dimensional three-dimensional parts. In the prior art, laser light internal powder feeding additive manufacturing is a method of feeding metal powder into a circular laser beam to form metal parts. The forming process is stable, and it has been widely used in aerospace and other fields. However, the powder feeding technology requires high powder quality and high powder cost, which limits its application range. Although side-axis laser wir...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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