Mr. Qunji Zhou Profile

Qunji Zhou

at Changchun Univ of Science and Technology

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Publications (2)

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Proceedings Article | 28 February 2021 Paper

Simulation study on a new machining method of V-groove with double tools planing and ruling

Qunji Zhou, Guangfeng Shi, Siwei Meng, Yanchun Ding

Proceedings Volume 11781, 117810U (2021) https://doi.org/10.1117/12.2590077

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Based on the V-groove planing-ruling process, the Deform-3D finite element software was used to simulate the stress distribution and material flow characteristics during the planing, the residual stress of the grooved surface was analyzed using the point tracking function, and the change law of the amount of rebound was assessed. Subsequently, based on the basis of planning, the residual stress and rebound deformation change trend after completion of secondary ruling finishing was analyzed, and it was concluded that the secondary ruling finishing could effectively eliminate the rebound tendency of the V-groove, despite the notch quality being poor. It provides a new machining method for improving the quality of v-groove in industrial field.

Proceedings Article | 28 February 2021 Paper

Research of development status of laser-assisted machining in situ

Siwei Meng, Guangfeng Shi, Qunji Zhou

Proceedings Volume 11781, 117811R (2021) https://doi.org/10.1117/12.2590075

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Laser-assisted machining in-situ technology is an emerging hot spot in the processing field. The technology not only has an excellent performance in processing Cu, Al, and other tough metals but also is an effective method for surface treatment and microfabrication of difficult-to-process materials such as engineering ceramics, high-temperature alloys, and composite materials. And technology has an excellent performance in improving machining accuracy, surface quality, tool life, machining efficiency, and so on. Firstly, the principle of the technology is explained, followed by the introduction of the research progress of scholars at home and abroad in recent years from the perspective of laser in-situ auxiliary multiple different processing methods, finally, the existing problems and future development direction of the technology is summarized and prospects.

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