Zkoumání metody pro zlepšení odnímatelnosti podpůrných struktur při LBPF korozivzdorné oceli 316L

Abstract

This thesis examines a method for improving the removability of support structures in 316L stainless steel produced using L-PBF technology, specifically by verifying the effect of fixing support structures into an epoxy resin block on the stability of the mechanical removal process. As part of the experimental section, comparative measurements were performed on a MAS MCV 1270 CNC machining center between the two samples, with the components of the cutting forces measured using a Kistler piezoelectric dynamometer. Analysis of the measured data confirmed that the application of resin leads to a significant reduction in dynamic shocks, which in unfixed samples resulted in the support structures being torn out of the workpiece. Microscopic examination of the condition of the cutting tools demonstrated that the proposed fixation method effectively prevents chipping of the tool’s cutting edge. The results of this work demonstrate that stiffening the support structures increases the stability of the cutting process, protects the tool, and enables increased productivity in the mechanical removal of supports in the field of additive manufacturing.