U-pass milling is a roughing method that combines the characteristics of flank with conventional trochoidal milling. The tool cuts in and out steadily, tool–workpiece wrap angle maintained within small range. This can smooth cutting force reduce peak while avoiding heat accumulation, which significantly improve processing efficiency wear. In this study, path model established for milling, chara...

This paper studies optimization of tool path planning in 5-axis flank milling of ruled surfaces using advanced Particle Swarm Optimization (PSO) methods with machining error as an objective. We enlarge the solution space in the optimization by relaxing the constraint imposed by previous studies that the cutter must make contact with the boundary curves. Advanced Particle Swarm Optimization (APS...

Many mobile robot path planning algorithms, produce changing intermediate goal coordinates for a mobile robot to pursue, and provide motoring speed/torque signals based upon local sensor information and the position of the global target. This is often done with little or no regard for the low level vehicle dynamics, which, in practice, must be taken into account for efficient path planning. The...

A new missile midcourse guidance algorithm is proposed in this paper. It is a combination of sampling based path planning, Dubins’ curves and classical guidance laws. Moreover, a realistic interceptor missile model is used. It allows to anticipate the future changes of flight conditions along the trajectory, especially the loss of maneuverability at high altitude. Simulation results are present...

We present a novel approach to CAD/CAM integration for 3-axis machining. Instead of redefining the workpiece in terms of machining features, we generate tool paths directly by using the accessibility of the surface of the part as the central and the over-arching constraint. This eliminates the problem of feature extraction. We envision this as the core strategy of a new direct and seamless CAD/...

This paper is about new iso-parametric tool path planning for machining trimmed freeform surfaces. The trimmed surface has been re-parameterized by two different parameterization techniques, namely, the partial differential equation method and the newly developed boundary interpolation method. The efficiency of the scheme has been measured in terms of path length and computational time needed f...