The results show that the developed method is computationally efficient, robust, and accurate in generating adaptive planar toolpath. The developed system was extensively tested and compared with various reported toolpath planning strategies for machining complex freeform surface parts. A new image-processing technique has been proposed to identify gouge by detecting the shadow surface voxels and their intersection with the cutting tool. The proposed approach consists of two main steps, an algorithm to generate gouge-free cutter location points from the voxel-based CAD model and an algorithm to find out the sidestep and forward step from the cutter location points to create the final CNC tool path. The algorithm is designed to work on a graphics processing unit (GPU) that allows parallel processing for faster toolpath generation. This paper presents a new method to generate an adaptive iso-planar toolpath for a three-axis CNC machining of freeform surfaces that are projectable onto a plane without overlap using the voxel-based part model. The voxel-based computer-aided design (CAD) model provides the ability to represent the multi-patch surfaces in a discretized manner, which can be processed using an advanced parallel computing framework for accurate tool path planning. Traditional toolpath generation methods involve complex computations and are unable to consider multiple surface patches together.
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Frequent changes in the design of products necessitate creating CNC part programs that need fast and accurate toolpath generation methods. Today, freeform surfaces are widely used on products in automobile, aerospace, and die/molds industries, which are generally manufactured using multi-axis computer numerical control (CNC) machines. Journal of Verification, Validation and Uncertainty Quantification.Journal of Thermal Science and Engineering Applications.Journal of Offshore Mechanics and Arctic Engineering.Journal of Nuclear Engineering and Radiation Science.Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems.Journal of Nanotechnology in Engineering and Medicine.Journal of Micro and Nano-Manufacturing.Journal of Manufacturing Science and Engineering.Journal of Engineering Materials and Technology.
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ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering.Mechanical Engineering Magazine Select Articles.