It is based on the discrete model of finite analysis to get curvature,normal vector,(main) direction and geodesic curve,then to analyze and design the structure.

Research on Surface NC Machining Accuracy;

Algorithm for generation of free gou tool path on sculptural surface;

Development of Study on Numerically Controlled Machining Technology of free Surfaces;

Powder mixed EDM of a special material curved surface;

Curved surface structure of internal contraction tunnel/isolator of two-dimensional hypersonic inlet;

The Properties and Application of the Bicubic Bezier Curved Surface;

The establishing of the space curved face to adapt CNC working;

The polishing and grinding for curved face device is given based on these turning joints,of numerical control milling machine with three linear coordinates.

Planning tool-path in the multi-coordinates machining curved face is elements and key of NC codes programming.

All quadrilateral finite element mesh generation of 3D surfaces in CAD and method of locally adding mesh density;

This paper presents a new method in which the disc cutter always has the same curvature and the curvature differential with that of the surfaces being machined.

Matching surfaces with the objective function constructed according to the criterion, surfaces can be well matched, and the influence of the local high distortions was markedly reduced.