A study of burr mechanism in micro grooving

Burr formation in micro cutting is a serious problem in precision engineering nowadays. It affects a lot on product's quality, besides deburring techniques on micro patterns are almost impossible or too complicated and high-cost. Predicting and minimizing burr size in correlation with cutting conditions is more appropriate. Previous researches about micro burr problems are still not enough to deal with the requirements of the manufacturing industry. For the purpose of exploring the burr phenomenon in micro metal cutting, two cases of burr formation in turning micro patterns are introduced in the paper. The burr happens along the cutting direction - side burr - with prism pattern and rectangular pattern. And the analytical solution for predicting the burr size of prism pattern is also proposed.