LASER CLADDING CROSS-SECTION MODELING OBTAINED BY METALLIC POWDER SPRAYING INTO A NDYAG LASER-BEAM

被引：9

作者：

LEMOINE, F

GREVEY, DF

VASTRABOBIN, I

VANNES, AB

机构：

[1] IUT,LTM,F-71200 LE CREUSOT,FRANCE

[2] FRAMATOME FRANCE,CTR TECHN,F-71200 LE CREUSOT,FRANCE

来源：

JOURNAL DE PHYSIQUE III | 1993年 / 3卷 / 10期

关键词：

D O I：

10.1051/jp3:1993257

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents a cross-section modeling of laser claddings by powder spraying in a cw Nd-YAG laser. We admit a homogeneous temperature repartition inside each powder particle during interaction time, a material's intern energy variation equals its absorbed energy and an optical extinction through a powder cloud following a Beer-Lambert law. Apart the good correlation obtained between model and experiments, this one shows experimentals data which change widely the cross-section (power, power feed, scanning speed). And we define and obtain experimentally an absorption coefficient which is nearly the value of a liquid metal absorption coefficient.

引用

页码：2043 / 2052

页数：10

共 15 条

[1] THE PHASE-DOPPLER-DIFFERENCE-METHOD, A NEW-LASER-DOPPLER TECHNIQUE FOR SIMULTANEOUS SIZE AND VELOCITY-MEASUREMENTS .2. OPTICAL-PARTICLE CHARACTERISTICS AS A BASE FOR THE NEW DIAGNOSTIC-TECHNIQUE [J].