The project "Research, Development and Application of Laser Optical In-feed Powder Additive Manufacturing Technology", which was jointly completed by Suzhou University, Huazhong  Science and Technology University, Wuhan Wugang HTEC Laser Large Equipment Co. Ltd, Suzhou Tianhong Laser Co., Ltd and Nanjing Zhongke Yujia Laser Technology Co.Ltd , won the "2022 China Industry-University-Research Cooperation Innovation and Promotion Award".

01

Project introduction

This project is the result of the research and industrialization project which is carried out under the funding of the national key R&D program.

This project developed a special structure of light, powder and air paths——As to details, the design is equipped with spatial light package powder structure, light-powder gas multi-phase flow without interference, long-range, precise alignment coupling technology, focal spot modulation and variable light spot technology; material powder utilization rate increased from 30%-50% to 60%-90%;Surface roughness reduced from rough grade manufacturing to Ra3.41μm grade；The 500W-20000W series of high precision and high efficiency multi-functional laser cladding and forming systems have been successfully developed, with fused deposition dimensional accuracy/shape accuracy ≤ ±0.1mm/±0.01mm, breaking through the traditional cladding and forming only in the horizontal or small inclination angle (generally not exceeding ±45°) base surface cladding and forming space limit.；Developed spatial slicing and layering, variable directional melt trajectory planning technology, nozzle anti-powder spattering pollution technology; realized nozzle space arbitrary oblique, vertical, elevation base surface and continuous 360° space variable directional 3D forming melt；Developed non-parallel slicing layering, normal stacking with shape and path planning and control system, realizing non-misaligned stacking between layers and eliminating the traditional step effect; developed process technologies and software algorithms for forming large overhanging bent and twisted parts, variable width/height structures, closed structures, fully closed thin-walled cavities, cross nested structures, etc., solving the world-wide problem of unsupported free forming of multiple complex shaped structures by laser cladding; It has achieved a major breakthrough in laser cladding additive manufacturing technology and created a new technology of precise, universal laser cladding and unsupported free 3D forming of complex heterogeneous parts, which has a broad prospect of promotion and application in industry, academia and research.

02

China Association for the Promotion of Industry-University-Research Cooperation

Industry-University Research Cooperation Innovation and Promotion Award

The "China Association of Industry-University-Research Cooperation Innovation and Promotion Award" is an honorary award approved by the National Office of Science and Technology Rewards for the collaborative innovation of industry-university research in China, which aims to recognize advanced units and individuals who have made outstanding contributions to the cooperation and innovation of industry-university research, fully mobilize the initiative of "industry-university-research, government-funding-intermediation, business-media-use" parties in establishing an enterprise-oriented, market-oriented, industry-university-research integrated technological innovation system, thus encouraging the transformation of scientific and technological innovation results into real productivity, and promoting the integration of industry-university research and use.

China Industry-University-Research Cooperation Promotion Association was established in November 2007 and was a national social organization approved by the State Council and founded by the National Development and Reform Commission, Ministry of Education, Ministry of Science and Technology, Ministry of Industry and Information Technology, State-owned Assets Supervision and Administration Commission of the State Council, Chinese Association for Science and Technology, Chinese Academy of Sciences, Chinese Academy of Engineering, All-China Federation of Trade Unions, National Development Bank and other relevant departments and a number of universities, research institutes, central enterprises, state-owned enterprises, private enterprises and other government, industry, academia and research sectors. It is a high-level collaborative innovation service platform of cross-sector, cross-region, cross-industry and cross-discipline, with interaction and cooperation among industry, academia, research, government, finance, business, media and other sectors, and is supervised by the State-owned Assets Supervision and Administration Commission of the State Council and a group member of the Chinese Association for Science and Technology. The mission of the Association is to promote the construction of the national innovation system, accelerate the development of regional economic innovation and enhance the independent innovation capability of enterprises, integrate innovation resources, build a government, industry, academia, research and finance collaborative innovation sharing service platform, explore new models, mechanisms, methods and approaches for cooperation between industry, academia and research, strengthen the deep integration of industry, academia and research, and contribute to the construction of an innovative country and a world science and technology power.