CAD geometric variation approach for lettering on a 3D free surface by 3-UPU parallel machine tool

Research on tool path generating technique for free surface with STEP-NC;

An algorithm based on bicubic B-spline surface interpolation for free surface design;

Non-linear error in the NC machining of free surface and setting of the tool s step;

Method of efficient continuous plastic forming for freeform surface part;

Research on the interference areas determination algorithm of freeform surface in NC machining;

A new method for reconstruction of freeform surface;

Offset tool path planning for three-axis free form surface machining;

Design of free form surface optical system in CODE V;

This paper present principles of developing complicated parametric surfaces, derived the algorithms for approximate development of surfaces and section curves, and implemented the approximate development for free form surfaces using cross section, and codes C++ application software.

Subdivision planning of complex free-form surface;

Polishing die free-form surface by series and parallel polishing machine;

Study on Free-form Surface Positioning Method Based on Precision Inspection;

Research on optimization of cutting direction in NC machining of free-form surfaces;

A novel method is proposed to solve the collision and interference of the free-form surfaces.

A new algorithm for tool-path planning in the three-axis NC machining of free-form surfaces is presented.