摘要
Application of statistical methods to optimize the process parameters was achieved by employing full factorial design of experiments,which was accomplished by cladding using stepwise ramped laser power.The correlations between clad geometry and dilution(clad characteristics)and the main process parameters laser power(P_(l)),cladding speed(v_(c)),the powder feed rate(m)were obtained through application of variance analysis technique(ANOVA).The obtained correlations between the main processing parameters and the clad characteristics are discussed and a statistical model was developed.The desirability investigations using the developed statistical model were performed by considering the clad geometry,aspect ratio,dilution and hardness.Optimal parameters for cladding Stellite 6 on AISI 420 steel substrate and for cladding Nucalloy 488V on S355 J2 steel substrate were obtained.The optimal processing parameters can be applied to clad other materials with similar chemical compositions.
作者
亚伟
Pathiraj B.
于兴华
Ya Wei;Pathiraj B.;Yu Xinghua(University of Twente,Faculty of Engineering Technology,Department of Mechanics of Solids,Surfaces&Systems(MS3),Enschede,P.O.Box 217,7500 AE,The Netherlands;Materials innovation institute(M2i),Delft,P.O.Box 5008,2600 GA,The Netherlands;Beijing Institute of Technology Chongqing Innovation Centre,Chongqing 401120,China;School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China)
基金
carried out under project number M72.7.09328 within the framework of the Research Program of the Materials innovation institute M2i(www.m2i.nl)。
