Title :
Laser Heat Treatment Analysis of 40Cr Steel for High Speed Spindle
Author :
He Qiang ; Liu Hongzhao ; Ye Jun ; Niu Qing-Po
Author_Institution :
Dept. of Mech. Eng., Xi´an Univ. of Technol., Xi´an, China
Abstract :
A significant majority of 40Cr steel as high speed spind requires hard,strong,wear-resistant.Spindle are important components for machine tool.lt can reduce disbursal and improve efficiency by enhancing the life of spindle.In this paper,40Cr steel with normalized one has been hardened by laser. Technics: spot diameter 7 mm,laser power 1600 W,scan speed 15 mm/s,then microstructures analysis, rigidity measure and wear test.The result show: 40Cr laser heat treatment samples have high hardness and good antiwear ,comparing to the conventional heat treatment samples, and hardness of the outer layer is lower than the subsurface layer, it is easy to reach the laser-hardened layer after fine grinding. And it will provide data support for partially spindle laser heat treatment process and experiments.
Keywords :
chromium; laser beam machining; machine tool spindles; shear modulus; steel; wear testing; 40Cr steel; crostructures analysis; laser heat treatment analysis; power 1600 W; rigidity measure; wear testing; Building materials; Chemical lasers; Heat treatment; Laser beams; Optical materials; Power lasers; Steel; Surface emitting lasers; Surface treatment; Temperature;
Conference_Titel :
Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4412-0
DOI :
10.1109/SOPO.2009.5230285
