TOOL FOR STRAIGHTENING PIPE END

摘要

PROBLEM TO BE SOLVED: To provide a tool for straightening a pipe end, with which the pipe is chamfered. SOLUTION: This tool for straightening the pipe end includes a semispherical head 20 for chamfering the pipe by crushing the inner peripheral corner part of a pipe to be worked by sliding a semispherical slidable contacting surface part 21 which is set larger than the half of the size of the inside diameter of the pipe to be worked in the size R0of the radius of curvature while pressing it to the end part of the pipe to be worked. COPYRIGHT: (C)2011,JPO&INPIT