IMECH-IR  > 先进制造工艺力学实验室
基于量纲分析的激光直接成形残余应力控制
Alternative TitleCONTROL OF RESIDUAL STRESS FOR LASER AIDED DIRECT METAL DEPOSITION BASED ON DIMENSIONAL ANALYSIS
章凌; 宋宏伟; 虞钢
Source Publication力学与实践
2009
Volume31Issue:4Pages:37-40
ISSN1000-0879
Abstract激光直接成形中,几何参数、材料属性和工艺参数等众多参量均会对残余应力造成影响,需要进行系统分析.采用量纲分析的方法,分别提取表征几何、传热和变形的3类关键无量纲参数,并结合三维瞬态有限元分析模型来研究这些无量纲参数对热致残余应力的影响规律.研究表明,选用热膨胀系数、屈服应力较小的材料,残余应力会较小;工艺控制中,可通过降低热散失,增大激光功率和提升预热温度来减小残余应力,其中预热的效果最好.
Keyword激光直接成形 残余应力 量纲分析 工艺优化
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金(10502049) ; 中国科学院知识创新工程领域前沿项目资助
CSCD IDCSCD:3669659
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/33399
Collection先进制造工艺力学实验室
Corresponding Author章凌
Recommended Citation
GB/T 7714
章凌,宋宏伟,虞钢. 基于量纲分析的激光直接成形残余应力控制[J]. 力学与实践,2009,31,4,:37-40.
APA 章凌,宋宏伟,&虞钢.(2009).基于量纲分析的激光直接成形残余应力控制.力学与实践,31(4),37-40.
MLA 章凌,et al."基于量纲分析的激光直接成形残余应力控制".力学与实践 31.4(2009):37-40.
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