PEENING DEVICE FOR TUBE FINISHING

摘要

A device having particular utility for peening and finishing the inside of a tube which comprises a rotatable shaft having at least one peening flap affixed to and extending radially from a portion of the shaft. Each such flap has peening particles mounted on the radially outer portion thereof. At least one support means is provided so as to hold the portion of the shaft having peening flaps affixed thereto in close proximity to and at a fixed distance from the wall of the tube to be peened. The device is operated, and the consequent peening action obtained by rotating or driving the shaft with a motor. As the shaft rotates, a whipping action is imparted to the flaps whereby the peening particles impinge upon the inner wall of the tube and effect the peening thereof.