Computational minimization of over-deposition at corners of trajectories in Laser Metal Deposition. (August 2021)

• Record Type: Journal Article
• Authors: Montoya-Zapata, Diego; Creus, Carles; Moreno, Aitor; Ortiz, Igor; Alvarez, Piera; Ruiz-Salguero, Oscar; Posada, Jorge
• Is Part Of: Manufacturing letters. Volume 29(2021)
• Page Start: 29
• Page End: 33
• Publication Date: 2021-08
• Subjects: Additive manufacturing -- Laser cladding -- Optimization; Manufacturing industries -- Periodicals; Production engineering -- Periodicals; Manufacturing industries; Periodicals; 670
• DOI: 10.1016/j.mfglet.2021.05.001
• Languages: English
• ISSNs: 2213-8463

Abstract

Abstract: Avoidance of over-deposition at trajectory corners is relevant in Laser Metal Deposition (LMD) for Additive Manufacturing. Currently available LMD hardware only allows constant material feed (g/s). Therefore, gliding speed of the material dispenser is the remaining tuning variable for controlling metal over-deposition at corners. Existing literature reports trial–error physical experiments, addressing only particular corner angles. In response, this manuscript reports the implementation of a voxel-based simulator of the bead geometry, taking into consideration bead profile, dispenser velocity, material feed, and bead curve geometry. We use it to evaluate two constant-feed tailored-velocity strategies for minimizing material over-deposition at corners.