In order to eliminate local protuberance of cold rolled coil caused by defect profile of cold rolled strip,inherited from defect profile of hot rolled strip,a new cosine contour of hot rolling work roller was presented based on the analysis of defect profile of hot rolled strip caused by feline ear type of roller wear to control edge thickness and local high point of hot rolled strip.

The application of Element Free Galerkin Method on the local crowning of cold roll forming;

Studying the local relief characters of magnetic basement by the interpolation-cut method;