Post-treatment technologies for high-speed additive manufacturing：Status, challenge and tendency
Yang Liu, Xinyu Liu, Jinzhong Lu, Kaiyu Luo, Zhaoyang Zhang, Haifei Lu, Hongmei Zhang, Xiangyang Xu, Yufeng Wang, Siyu Zhou
Abstract
In the process of high-speed additive manufacturing, machining defects such as low surface accuracy, high surface roughness, residual stresses and micro-cracks have a serious impact on the performance and life of the product. These machining defects need to be removed by post-treatment in order to promote the use of additive manufactured parts in industrial production. This article provides a systematic review of existing post-treatment technologies for additive manufactured parts, divided into surface post-treatment technologies and overall post-treatment technologies. The processing cost expenditure of the most common post-processing methods is analyzed. The core values and key metrics of post-processing are explored. The prospects for post-processing technology for additive manufactured parts in six key development directions are discussed. The present review systematically discusses the process capabilities and research developments of post-processing technologies for high-speed additive manufacturing, taking into account knowledge from both basic and applied research areas.