Optimization of the cross section geometry of laser‐densified dental porcelain bodies for rapid prototyping processes

摘要: Purpose – To investigate the effect of laser densification parameters on cross section geometry laser‐densified single line, and thus provide guidance for selecting processing condition to obtain dense shapes with minimum defects.Design/methodology/approach A range dental porcelain powder lines small areas (in order 1 × 1 mm2) were extruded from micro‐extruders densified systematically changed peak power intensity, beam diameter, ratio diameter width line.Findings The line have substantial influence geometry. effects these can be explained in terms minimization surface energy both solid liquid states, volume shrinkage associated densification, temperature gradients present p...