| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting edge exhcnage type chip and a method for working a chip, which can attain the improved productivity of the edge replacement-type chip utilizable in high-accuracy cutting to lower the cost. SOLUTION: The cutting edge exchange type chip 1 is a sintered product for a cutting tool. The cutting edge exchange type chip comprises a main cutting edge 6 defined by a ridge line between an upper surface 2 and a side surface 4 and uses the upper surface 2 as a rake surface. A side-surface upper part 4a as a flank for the main cutting edge 6 is formed of a polished surface, and a side-surface lower part 4b as a supporting surface for positioning is formed of a non-polished surface with a sintered skin remaining unremoved, whereby the polishing area is reduced smaller than that in a whole circumference polished chip. COPYRIGHT: (C)2010,JPO&INPIT |
