Research on width control of Metal Fused-coating Additive Manufacturing based on active control

[摘要] Given the stability of the shape of the forming layer is one of the key problems that affect the final quality of the sample morphology, taking a study on the forming process and the control method of morphology make a significant difference to metal fused-coating additive manufacturing (MFCAM) in achieving the efficient and stable forming. To improve the quality and precision of the samples of single-layer single pass, a control method of morphology based on active control was established by this paper. The real-time acquisition of image was realized by CCD and the characteristics of morphology of the forming process were simultaneously extracted. Making analysis of the characteristics of the width during the process, the relationship between the relative difference of different frames and moving speed was given. A large number of experiments are used to verify the response speed and accuracy of the system. The results show that the active system can improve the morphology of the sample and the smoothness of the width of the single channel, and increase the uniformity of width by 55.16%.

[发布机构] State Key Laboratory of Manufacturing System Engineering, Xi'An Jiaotong University, Xi'an; 710049, China^1

[效力级别] 机械制造 [学科分类] 材料科学（综合）

[关键词] Active control;Active systems;Control methods;Fused coatings;Real time acquisition;Response speed;Sample morphology;Single channels