Dr. Chunsheng Wang Profile

Dr. Chunsheng Wang

at CRRC Changchun Railway Vehicles Co., Ltd.

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Author

Publications (5)

Proceedings Article | 24 November 2021 Paper

Effect of laser-arc hybrid welding process on carbon steel welds back formation

Kai Li, Chunsheng Wang, Guangzhong He, Hongxiao Wang, Meng Tian, Zhenglong Lei

Proceedings Volume 12060, 120600C (2021) https://doi.org/10.1117/12.2604461

KEYWORDS: Laser welding, Laser processing, Metals, Carbon

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Proceedings Article | 24 November 2021 Paper

Investigation of laser welding development and application on high standard stainless steel railway vehicle

Hongxiao Wang, Chunsheng Wang, Guangzhong He, Wenwen Gao, Kai Li, Chunyuan Shi

Proceedings Volume 12060, 120601W (2021) https://doi.org/10.1117/12.2616599

KEYWORDS: Laser welding, Standards development, Laser development, Manufacturing, Laser applications, Laser processing, Fiber lasers, Resistance, Mirrors, Laser systems engineering

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Proceedings Article | 18 December 2019 Paper

The investigation of the ramping length of the stainless steel railway vehicle laser welding seam

Hongxiao Wang, Chunsheng Wang, Radovan Kovacevic, Guangzhong He, Kai Li

Proceedings Volume 11333, 113330B (2019) https://doi.org/10.1117/12.2541470

KEYWORDS: Laser welding, Laser applications, Laser processing, Sensors, Argon, X-ray detectors, X-rays, Lithium, Roads, Manufacturing

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Proceedings Article | 18 December 2019 Paper

Hybrid laser-arc welding process of full penetration T joint in high speed railway vehicle bogie

Kai Li, Guangzhong He, Hongxiao Wang, Chunsheng Wang

Proceedings Volume 11333, 113330V (2019) https://doi.org/10.1117/12.2544117

KEYWORDS: Laser welding, Laser processing, Fiber lasers

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Proceedings Article | 19 October 2016 Paper

Application of lap laser welding technology on stainless steel railway vehicles

Hongxiao Wang, Chunsheng Wang, Guangzhong He, Wei Li, Liguo Liu

Proceedings Volume 10153, 101530I (2016) https://doi.org/10.1117/12.2245644

KEYWORDS: Laser welding, Laser applications

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Stainless steel railway vehicles with so many advantages, such as lightweight, antirust, low cost of maintenance and simple manufacturing process, so the production of high level stainless steel railway vehicles has become the development strategy of European, American and other developed nations. The current stainless steel railway vehicles body and structure are usually assembled by resistance spot welding process. The weak points of this process are the poor surface quality and bad airtight due to the pressure of electrodes. In this study, the partial penetration lap laser welding process was investigated to resolve the problems, by controlling the laser to stop at the second plate in the appropriate penetration. The lap laser welding joint of stainless steel railway vehicle car body with partial penetration has higher strength and surface quality than those of resistance spot welding joint. The biggest problem of lap laser welding technology is to find the balance of the strength and surface quality with different penetrations. The mechanism of overlap laser welding of stainless steel, mechanical tests, microstructure analysis, the optimization of welding parameters, analysis of fatigue performance, the design of laser welding stainless steel railway vehicles structure and the development of non-destructive testing technology were systematically studied before lap laser welding process to be applied in manufacture of railway vehicles. The results of the experiments and study show that high-quality surface state and higher fatigue strength can be achieved by the partial penetration overlap laser welding of the side panel structure, and the structure strength of the car body can be higher than the requirements of En12663, the standard of structural requirements of railway vehicles bodies. Our company has produced the stainless steel subway and high way railway vehicles by using overlap laser welding technology. The application of lap laser welding will be a big change of railway vehicles manufacturing technology.

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