Towards sketch-based modelling for laser cladding

Abstract

Many designers use Computer-Aided Design (CAD) systems to visualize their ideas. However, many still prefer to use sketching. Moreover, there are designers that argue that having a three-dimensional (3D) physical model would be more beneficial when it comes to visualization. A new rapid prototyping technique which has recently evolved is known as laser cladding. This process can produce 3D physical models made from metal. W ith such a competitive market there is a need to reduce lead times. The facility of having a 3D metal component manufactured directly from a 3D virtual model which is automatically obtained from an initial paper- based sketch can potentially reduce the time-to-market of a product. This paper presents a framework aimed at this direction. A preliminary proof-of-concept tool, based on this framework has been implemented and evaluated, with promising results achieved.