Mechanical Engineering, Industrial and Manufacturing Engineering
37
Scopus Publications
Scopus Publications
Forming accuracy improvement in wire arc additive manufacturing (WAAM): a review Yiwen Li, Zhihai Dong, Junyan Miao, Huifang Liu, Aleksandr Babkin, et al. Rapid Prototyping Journal, 2023 Purpose This paper aims to anticipate the possible development direction of WAAM. For large-scale and complex components, the material loss and cycle time of wire arc additive manufacturing (WAAM) are lower than those of conventional manufacturing. However, the high-precision WAAM currently requires longer cycle times for correcting dimensional errors. Therefore, new technologies need to be developed to achieve high-precision and high-efficiency WAAM. Design/methodology/approach This paper analyses the innovations in high-precision WAAM in the past five years from a mechanistic point of view. Findings Controlling heat to improve precision is an effective method. Methods of heat control include reducing the amount of heat entering the deposited interlayer or transferring the accumulated heat out of the interlayer in time. Based on this, an effective and highly precise WAAM is achievable in combination with multi-scale sensors and a complete expert system. Originality/value Therefore, a development direction for intelligent WAAM is proposed. Using the optimised process parameters based on machine learning, adjusting the parameters according to the sensors’ in-process feedback, achieving heat control and high precision manufacturing.
Influence of deposit track on the forming and performance of wire arc additive manufactured 2319 aluminum alloy components Honglei Zhao, Yiwen Li, Yajie Sun, Zhihai Dong, Huifang Liu, et al. Welding International, 2022 The wire arc additive manufacturing (WAAM) method has a high material utilization rate and is superior to the casting method. However, the higher the dimensional accuracy required for additive manufacturing components and the more complex the components are, the more difficult it is to guarantee their quality. The subsequent processing requires a large amount of labour cost. In this study, a track optimization method is proposed to achieve the quality control of 2319 aluminium alloy additive manufacturing components, which can improve the forming accuracy and optimize the component performance. The experimental results show that multi-track stacking can effectively reduce the heat accumulation in the deposition process. The component forming accuracy is improved by about 70%, the tensile strength by about 6% and the yield strength by about 15%. The influence of deposition track on the forming accuracy and quality of WAAM components has rarely been studied.
Research progress of arc additive manufacture technology Dan Liu, Boyoung Lee, Aleksandr Babkin, Yunlong Chang Materials, 2021 Additive manufacturing technology is a special processing technology that has developed rapidly in the past 30 years. The materials used are divided into powder and wire. Additive manufacturing technology using wire as the material has the advantages of high deposition rate, uniform composition, and high density. It has received increasingly more attention, especially for the high efficiency and rapid prototyping of large-size and complex-shaped components. Wire arc additive manufacturing has its unique advantages. The concept, connotation, and development history of arc additive manufacturing technology in foreign countries are reviewed, and the current research status of arc-based metal additive manufacturing technology is reviewed from the principles, development history, process, and practical application of arc additive manufacturing technology. It focuses on the forming system, forming material, residual stress and pores, and other defect controls of the technology, as well as the current methods of mechanical properties and process quality improvement, and the development prospects of arc additive manufacturing technology are prospected. The results show that the related research work of wire arc additive manufacturing technology is still mainly focused on the experimental research stage and has yet not gone deep into the exploration of the forming mechanism. The research work in this field should be more in-depth and systematic from the physical process of forming the molten pool system from the perspectives of stability, the organization evolution law, and performance optimization. We strive to carry out wire arc additive forming technology and theoretical research to promote the application of this technology in modern manufacturing.
DEVELOPMENT OF AN ALGORITHM FOR CALCULATING THE PARAMETERS OF CO//2 WELDING IN A MICROCOMPUTER. Welding Production English Translation of Svarochnoe Proizvodstvo, 1985
