Vibrations characteristics analysis of metal composite 17-4PH material extrusion additively manufactured parts under amplitude dependence property

Abstract

The ultra-fuse 17-4 PH stainless-steel filament has emerged as a promising new material in the 3D printing field during this past decade. Since the introduction recently of the 17-4 PH stainless-steel filament in the material extrusion process, extensive research has been carried out on the mechanical performance (tensile strength, plasticity, and surface roughness) of the metal composite 17-4 PH stainless-steel material extrusion additively manufactured parts, however few of them mainly focused on the dynamic performance of the 17-4 PH stainless-steel material extrusion additively manufactured parts thus leaving a slight void, therefore to fill this gap a dynamic linear model of a metal composite filament ultra-fuse 17-4 PH stainless-steel material extrusion additively manufactured parts has been established in this study considering the amplitude dependence. Material extrusion additively manufactured plates have been built in x and z-direction, and based on the Jones-Nelson model an investigation of the natural frequency and response and damping ratio of ultra-fuse metal composite 17-4PH metal composite material extrusion specimens has been completed. Equations of the proposed dynamic model have been solved by the combination of the orthogonal polynomial method and energy method. The Newton-Raphson iteration has been employed to predict the natural frequencies and responses of the ultra-fuse 17-4 PH stainless-steel material extrusion manufactured parts. The results indicate that the predicted damping characteristics of the ultra-fuse metal composite 17-4 PH metal composite material extrusion parts have a good consistency with the experimental ones, meanwhile, when amplitude vibration increases from [0.25g…2.00g], the response of the ultra-fuse 17-4 PH metal composite material extrusion parts increase as well both for x and z-direction samples.