A SIMPLE BUT REALISTIC MODEL FOR LASER CLADDING

被引：254

作者：

PICASSO, M ^{[1
]}

MARSDEN, CF ^{[1
]}

WAGNIERE, JD ^{[1
]}

FRENK, A ^{[1
]}

RAPPAZ, M ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE, PHYS MET LAB, CH-1015 LAUSANNE, SWITZERLAND

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1994年 / 25卷 / 02期

关键词：

D O I：

10.1007/BF02665211

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model which takes into account the main phenomena occurring during the laser-cladding process is proposed. For a given laser power, beam radius, powder jet geometry, and clad height, this model evaluates two other processing parameters, namely, the laser-beam velocity and the powder feed rate. It considers the interactions between the powder particles, the laser beam, and the molten pool. The laser power reaching the surface of the workpiece is estimated and, assuming this power is used to remelt the substrate with the clad having been predeposited, the melt-pool shape is computed using a three-dimensional (3-D) analytical model, which produces immediate results, even on personal computers. The predictions obtained with this numerical model are in good agreement with experimental results. Processing engineers may therefore use this model to choose the correct processing parameters and to establish cladding maps.

引用

页码：281 / 291

页数：11

共 21 条

[1]

BELFROE DE, 1992, IND LASER REV, V7, P11

[2]

Carslaw HS, 1968, CONDUCTION HEAT SOLI

[3] A 2-DIMENSIONAL TRANSIENT MODEL FOR CONVECTION IN LASER MELTED POOL [J].

CHAN, C ;

MAZUMDER, J ;

CHEN, MM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1984, 15 (12) :2175-2184

[4] HEAT TREATING AND MELTING MATERIAL WITH A SCANNING LASER OR ELECTRON-BEAM [J].

CLINE, HE ;

ANTHONY, TR .

JOURNAL OF APPLIED PHYSICS, 1977, 48 (09) :3895-3900

[5]

HAODLEY AFA, 1991, 1 P INT C SURF ENG P

[6]

HAODLEY AFA, 1992, METALL T B, V23, P631

[7] HEAT-FLOW SIMULATION OF LASER REMELTING WITH EXPERIMENTAL VALIDATION [J].

HOADLEY, AFA ;

RAPPAZ, M ;

ZIMMERMANN, M .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1991, 22 (01) :101-109

[8]

KANOUFF M, 1991, 5TH P ENG F C MOD CA, P733

[9] ONE-DIMENSIONAL DIFFUSION-MODEL FOR EXTENDED SOLID-SOLUTION IN LASER CLADDING [J].

KAR, A ;

MAZUMDER, J .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (07) :2645-2655

[10]

KAWASAKI M, 1992, FEB P INT C EXP DETR

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