Robust Design Based Optimisation of Waterjet Cutting

Surface Texture in Abrasive Waterjet Cutting

When cutting thick material with an abrasive wateriet, the surface area can be characterized by two texture types. At the top of the cut, the surface texture is smooth. At the bottom, the slurry jet exiting the workpiece forms large striations in the surface. An investigation was conducted to experimentafly determine the influence of the abrasive waterjet cutting parameters on surface texture. ...

Autonomous robust design optimisation with potential clouds

The task of autonomous and robust design cannot be regarded as a single task, but consists of two tasks that have to be accomplished concurrently. First, the design should be found autonomously; this indicates the existence of a method which is able to find the optimal design choice automatically. Second, the design should be robust; in other words, the design should be safeguarded against unce...

Examination of average surface roughness in waterjet cutting

Waterjet cutting is a non-conventional cutting technology. Important criteria of the cut surface are geometric accuracy and surface roughness. The aim of this paper is to provide predictive models to estimate average surface roughness (Ra), taking into account significant effects. Full factorial design of experiments were used in the waterjet cutting tests. The input parameters were plate thick...

Model-based Quality Optimisation for Laser Cutting under Transient Conditions

Quality improvements in laser cutting of mild steel have been achieved by a newly developed model-based optimisation strategy. The specific aims of such efforts are to assure quality of cut right up to pre-cut sections and boundaries, which are inherent in intricate part programs. Such boundaries frustrate heat transfer and result in bulk heating of the workpiece. This in turn leads to a degrad...

Interoperability-based Optimisation of Architectural Design