Control of Weld Bead Position in Additive Manufacturing Process with Using Backscattered Electrons Collector Signal

A. V. Shcherbakov, D. A. Gaponova, R. V. Rodyakina


The urgency of solving the problem of determining the deposited layer’s height for control the process of additive forming products from metallic materials in a vacuum is substantiated. A scheme of electron beam additive manufacturing process with wire feed is shown. A method for control the distance between deposited bead and electron gun by the signal taken from collector of backscattered electrons is proposed. The analysis of the signals recorded during the process of deposited metal bead scanning has been carried out and technical feasibility of this method has been substantiated. The technical solutions to introduce a method for continuous monitoring and control of additive forming process are proposed.

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