This paper deals with the method to prevent cutting burr at face milling of stainless steels. Without laser heat treatment for workpiece, SUS304 caused largest burr height in three type stainless steels. SUS430 was easier to be hardened using laser heat treatment compared with SUS304 and SUS403. As for SUS304, it was possible to reduce burr height. However, it was impossible to prevention burr generation perfectly. As for SUS430 and SUS403, choosing optimum cutting conditions, it was possible to prevention burr generation perfectly. Therefore, laser heat treatment for workpiece is efficient to prevent cutting burr at face milling of stainless steels.
