Abstract
Additive and subtractive rapid prototyping techniques: a comparative analysis of FDM & CNC processes
Highlights
Rapid prototyping is the generic term used to designate a set of technologies integrated by Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) systems, used to manufacture conceptual virtual or physical prototypes [1]
The approach in this research aims to assist professionals in the tactical manufacturing management area in verifying the potentials and limitations of Fused Deposition Modeling (FDM) ARP and CNCmilling SRP techniques, enabling to facilitate the identification of which technique should be applied according to the characteristics of a specific physical prototype manufacturing
The manufacturing cost by additive rapid prototyping technique is higher compared with the subtractive rapid prototyping technique due to the higher general operating and the raw-material costs;
Summary
Rapid prototyping is the generic term used to designate a set of technologies integrated by Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) systems, used to manufacture conceptual virtual or physical prototypes [1]. The manufacturing of conceptual physical prototypes is realized through additive or subtractive processes or even using virtual techniques. Rapid Prototyping (RP) techniques can be grouped under three distinct classifications: Additive (ARP); subtractive (SRP); and virtual. On the ARP and SRP approaches, the materials are cut or stacked layer-by-layer, where a three-dimensional CAD digital model can be transformed into a physical part or set. The prototype is needed to solve design problems and to assess the project’s technical feasibility before the product is ready to be manufactured and commercialized [3]. One of the main objectives of design methods for prototyping is to acquire enough information to advance product development with minimal time and cost.
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