By using this character, the checking calculation of interference in grinding pinion-type cutters can be simplified.

An optimized algorithm for cutter spacing path and a new gouge-detection algorithm for CNC machining were developed in which all the scallop height values between adjacent tool-paths are equal to the maximum allowance,so the maximal cutting width can be obtained and the gouge can be avoided.

Enveloped surface method in interference detection between opening and closing mechanism of lids of high speed train;

In the meantime, the virtual assemble of redactor has been given by relating the three-dimensional omponent packing and interference detection system.

Some important methods are researched and demonstrated, including numerical calculation, autogeneration and compling of G-code, simulating verify, interpolation and interfere calibration of cutter path.

Based on the analysis of workspace of PMT, a new mathematical model of workspace is built and the parameterized calculation is realized, which increases the efficiency of interfere calibration.

The product design module is developed,which can realize grab virtual assembly,kinematics analysis,interference check,finite element analysis and creating engineering drawings.

Research on method of interference examination in NC programming for screw machined by disc milling tool;