1999 年 65 巻 6 号 p. 872-877
Burrs make troubles on production lines in terms of deburring cost, quality of products and automation. The results in burr researches were effective on the specific cases but it is difficult to apply to other conditions, because burrs found in production lines were various in shape and size. Therefore generalized and systematic understanding of formation mechanism for various burrs was required. Moreover the, classification based on formation mechanism is considered to be useful to solve the burr problems in future. In this study, burr formation mechanism was analyzed and a classification method of burrs was proposed. Main object is exit burrs formed in milling operations and its formation mechanism was predicted with observation of burrs. To predict and verify the burr formation mechanism, some experiments were conducted. Terms of burrs were defined for easy understanding when it was necessary. Some burrs observed in experiment were classified as examples. As results, important factors in burr formation were clarified and the proposed classification method of burrs was effective in generality.