A closed-loop controller was proposed to adjust the laser power maintain melt pool stability based on linear quadratic regulator (LQR) control theory. The width acquisition system built complementary metal oxide semiconductor (CMOS), and captured image processed using an processing algorithm obtain width. used as input variable output variable. state space spatial model identified subspace meth...

Abstract Wire-based hybrid arc-laser additive manufacturing is suitable for producing large metallic parts (metres in scale) with high deposition rates and near-net-shape. In this process, the surface quality dimensional accuracy of deposited are determined by melt pool geometry. However, how to control process complex due multiple parameters that can be used. study, geometry investigating diff...