A Novel Additive Manufacturing Approach: Directed Energy Deposition with Real-Time Continuously Variable Composition

A novel approach focused on continuous real-time variable composition is becoming more popular in additive manufacturing (AM). At present, there is a lack of knowledge on multi-material laser directed energy deposition (MML-DED) additive manufacturing of continuously variable composition. Here we show the novel approach to deposit the layer which combine titanium, nickel and niobium three elements with dynamic continuous variable composition. The experimental results reveal that the mass norm precent of tita-nium element gradually continuous increase along the laser beam traversing direction, precent of nickel element basically no change and precent of niobium element gradually decrease. This study will inspire the scholars and engineers seeking approach and under-standing of how to utilize AM method to innovate the alloy design and intricate geome-tries building engaging in the additive manufacturing and relevant fields to meet future needs in numerous applications.