Investigation of the Correlation Between Plasma Electron Temperature and Quality of Laser Additive Manufacturing Process

摘要: In this paper, a spectral diagnosis method was reported to explore the temperature characteristic of plasma and detect forming quality in laser additive manufacturing. The data were collected by spectrum acquisition system under different processing parameters. temperatures conditions calculated using Boltzmann plot six neutral iron lines between 375 nm 390 nm, influence relationships power, powder feeding rate, traverse speed, cladding layer found. Meanwhile, time domain diagrams (the relationship time) corresponding process established, which respectively double-line method, analyze correlation fluctuation defects. It found that results from could reflect generated defects more clearly.