The 3D cementitious material printing method is an extrusion-based additive manufacturing strategy in which materials are extruded through a dynamic nozzle system to form filaments. Despite its ability fabricate structures with high complexity and efficiency, the uneven distribution during extrusion deposition process often encountered when radial toolpath introduced. This limits design freedom...

Abstract. Incremental sheet forming is a relatively new technology with deformation strategy that resembles the layered manufacturing principle of rapid prototyping; thanks to this, it can represent viable way form metal and polymer sheets, guaranteeing high customization cost-effectiveness. On other hand, particularly when considering thermoplastic components obtained by this process suffer fr...

A regional optimization of automatically generated machining toolpath for computer based freeform mechanical models is considered in the framework of multi-axis (three to ve) machining operations. Consider a trichotomy of an arbitrary freeform shaped surface into convex, concave and saddle-like regions. Saddle-like and concave regions can be milled using a ball end tool, in a 3or a 5-axis mode....

A continuous path is one of the most important requirements for solid freeform fabrication (SFF) based on welding. This paper proposes a method for torch path planning applicable to SFF based on welding with an emphasis on minimum human intervention. The suggested approach describes a method based on the subdivision of a two-dimensional (2-D) polygonal section into a set of monotone polygons to...