Laser beam machine for tubular body to be rolled

Abstract

Abstract PURPOSE:To prevent the fluctuation of the thickness and shape of a shell by driving the beam transmission pipe inserted into the through hole of a high temp. shell by rotating it with moving in the axial direction and eliminating the reduction in the lubrication performance by connecting the feeding device of a cooling liquid and gas to the beam transmission pipe as well. CONSTITUTION:A laser generating device 1 and driving device 4 are controlled with fitting the free end 3a of a beam transmission pipe 3 into the through hole 2a of the shell 2 heated at high temp. A cooling liquid and an inert gas are forcibly fed to the free end 3a of the beam transmission pipe 3 and a beam injection port 5 from a cooling liquid feeding device 7 and gas cooling device 8. A concave mirror 6 is diagonally provided near the beam injection port 5 of the beam transmission pipe 3 inside. The beam transmission pipe 3 is rotated with moving it in the axial direction by the driving device 4, a laser beam is radiated on the inner peripheral wall face of the rough hole 2a of the shell 2 and a spiral rough face is formed. A lubricant is confined on the rough face by spraying the lubricant on the formed rough face.

Inventors

• 👤 Makoto Miyashita
• 👤 誠 宮下
• 👤 Sadao Sugiyama
• 👤 杉山　貞夫
• 👤 Kazutoshi Takaishi
• 👤 和年 高石

Bibliographic Details