Title:
ROTOR SHAFT FOR COMPRESSOR WITH LASER QUENCHED SURFACE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPS61218822
Kind Code:
A
Abstract:
PURPOSE:To quench the surface of a crank spirally or concentrically by turning a roller shaft eccentrically making the center line of a crank as the turning center and moving it up and down while keeping the distance between a laser beam and the surface of the crank constant. CONSTITUTION:A jig 13 holding a roller shaft 1 is fitted on a rotary block 12 which has been fixed on a movable block 11 equipped with a mechanism capable of moving vertically at a given velocity on a level block 10 so that the center line of the jig is shifted from the center line of the rotary block 12 by the eccentric distance l between the center line of the shaft 1 and that of the crank 2. Consequently, the prescribed distance t between the surface of the crank 2 and a laser beam 14 during turning of the rotary block is kept constant. The laser beam 14 is set to be in line with the position of the upper end surface of the crank 2, and the rotary block 12 is turned at a given velocity, and at the same time the movable block 11 rises at a given velocity. Accordingly, since the crank 2 rises and turns at a given velocity while receiving the irradiation of laser beam 14, the surface of the crank 2 receives a spiral irradiation of a given pitch.
Inventors:
SAWATAKE OKIYORI
Application Number:
JP5753385A
Publication Date:
September 29, 1986
Filing Date:
March 23, 1985
Export Citation:
Assignee:
RIKEN KK
International Classes:
F04C18/356; C21D9/28; F04C29/00; F16C3/18; (IPC1-7): C21D9/28; F04C18/356; F04C29/00; F16C3/18
Domestic Patent References:
| JPS5477316A | 1979-06-20 | |||
| JPS57171625A | 1982-10-22 | |||
| JPS58224117A | 1983-12-26 |