摘要
以A304不锈钢作为基体,Fe313铁基粉末作为熔覆材料,以熔覆层熔道顶点偏移量作为评价目标,研究了激光功率、扫描速度、准直气压、基体倾斜角度以及它们的交互作用对熔道顶点偏移量的影响.研究结果表明:基体倾斜角度对熔道顶点偏移量的影响最大,其次是激光功率.熔道顶点偏移量随着基体倾斜角度的增大先增大后减小,随着激光功率的增加而逐渐增大.通过响应面法建立了激光功率、扫描速度、准直气压、基体倾斜角度与熔道顶点偏移量之间的数学模型.准直气压和基体倾斜角度对熔道顶点偏移量的交互影响显著、激光功率和基体倾斜角度对熔道顶点偏移量的交互影响显著.
Abstract
With A304 stainless steel as the substrate and Fe313 as the cladding powder,the effects of laser power,scanning speed,collimating pressure,inclining angle of substrate and their interactions on the vertex offset of the cladding layer were studied.The results show that the inclining angle of substrate has the greatest influence on the vertex offset,followed by the laser power.With the increase of the inclining angle of substrate,the vertex offset of the cladding layer increases and then decreases.With the increase of laser power,it gradually increases.The mathematical model between the process parameters(laser power,scanning speed,collimating pressure,inclining angle of substrate)and the vertex offset of the cladding layer is established by the response surface methodology(RSM).The collimating pressure and inclining angle of substrate have significant interaction effects on the vertex offset,and the laser power and inclining angle of substrate have significant interaction effects on the vertex offset.
基金项目
江苏省科技成果转化项目(BA2020004)
国家高技术船舶科研项目(MC-202031-Z07)
维普
万方数据