| 摘要 |
PURPOSE:To realize smooth cutting for the interior of the pipe without using running oil by providing compressed air ejection pipes adjacently to the plural number of cutters on tool shaft edge parts and ejecting scraps to the rear by means of compressed air. CONSTITUTION:The plural number of cutters 2, provided on edge parts of a tool shaft 1 through cutter fitting tables 3, are sent in the direction of an arrow b with rotation of the tool shaft 1 to cut the interior of a pipe P. Compressed air ejection pipes 4 are arranged adjacently to the cutters 2 and eject scraps to the rear. Since the cutters 2 advance leaving the scraps behind and the scraps are ejected to the rear by means of compressed air after cutting, smooth cutting can be performed without using running oil. |
