焊丝电弧增材制造中夹紧位置对残余应力的影响

IF 0.7 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Materials Research Pub Date : 2023-08-09 DOI:10.1515/ijmr-2022-0249

K. Ujjwal, M. Anand, Harish Bishwakarma, Alokekumar Das

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引用次数: 1

摘要

电弧增材制造(WAAM)打印的零件由于反复的热循环而产生的变形影响了制造质量。这些热循环产生的残余应力可以用有限元法来预测。本文采用数值模型对WAAM构件的温度分布和残余应力进行了预测。此外，还研究了夹紧位置对基体的影响。为此，将两种不同的夹紧位置与未夹紧状态进行了比较。未夹紧的情况下，残余应力最小，应变最大。与拐角夹紧的情况相比，基材夹紧在中心产生77 %的拉伸应力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of clamping position on the residual stress in wire arc additive manufacturing

Abstract The distortion of components printed by wire arc additive manufacturing (WAAM) due to repeated thermal cycles affects the build quality. The residual stress generated due to these thermal cycles can be predicted with the help of the finite element method. The temperature distribution and residual stresses in the WAAM component are predicted using a numerical model presented in this paper. Also, the effect of clamping position on the substrate is investigated. For this, two different clamping positions are compared with the unclamped state. The residual stress is minimum for the unclamped case and has maximum strain. The case where the substrate is clamped at the centre generates 77 % more tensile stress when compared with the corner clamped case.

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来源期刊

International Journal of Materials Research 工程技术-冶金工程

CiteScore

1.30

自引率

12.50%

发文量

119

审稿时长

6.4 months

期刊介绍： The International Journal of Materials Research (IJMR) publishes original high quality experimental and theoretical papers and reviews on basic and applied research in the field of materials science and engineering, with focus on synthesis, processing, constitution, and properties of all classes of materials. Particular emphasis is placed on microstructural design, phase relations, computational thermodynamics, and kinetics at the nano to macro scale. Contributions may also focus on progress in advanced characterization techniques. All articles are subject to thorough, independent peer review.