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

fYear

2009

fDate

14-16 Aug. 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-4412-0

Type

conf

DOI

10.1109/SOPO.2009.5230285

Filename

5230285