Considerații privind proiectarea produsului în condițiile fabricării aditive

Abstract

In lucrare sunt analizate aspectele de proiectare constructiva ce asigura competitivitatea tehnologiilor aditive: geometrii complexe si personalizate; complexitatea materialului (miltimaterialitatea); reproiectarea funcţionala a pieselor, ansamblurilor si produselor; reducerea numărului de piese într-un asamblu si/sau transformarea ansamblului in piesa; compexitatea macrostructurii interne; complexitatea ierarhică; complexitatea funcţională hibrida; complexitatea funcţională prin asamblarea directa la fabricare etc. Se arata ca proiectarea pentru fabricarea aditiva (Design for Additive Manufacturing - DFMA) ca si proiectarea pentru fabricare (Design for Manufacturing - DFM) si proiectarea pentru asamblabilitate (Design for Assembly - DFA) este un process continuu si dinamic si se dezvolta odata cu evoluţia metodelor de prelucrare respective. Proiectarea pentru fabricarea aditiva are un potenţial foarte mare, deoarece se refera la fabricarea directa din calculator (Direct Manufacturing) si se poate manifesta atat la structura interna a componentelor fabricate , cat si la cea interna.

The paper analyzes the aspects of constructive design that ensure the competitiveness of additive technologies: complex and customized geometries; material complexity (multimateriality); the funcţional redesign of parts, assemblies and products; reducing the number of parts in an assembly and / or transforming the assembly into a part; the complexity of the internai macrostructure; the hierarchical complexity; the hybrid funcţional complexity; the funcţional complexity by direct assembly to manufacturing etc. It is shown that Design for Additive Manufacturing (DFMA) as well as Design for Manufacturing (DFM) and Design for Assembly (DFA) is a continuous and dynamic process and develops with the evolution the respective Processing methods. Design for Additive Manufacturing has a great potenţial, because it refers to Direct Manufacturing and can manifest both the internai structure of the manufactured components and the internai one.