送丝速度和焊枪速度对丝弧加成不锈钢力学性能的影响

IF 2.4 3区 工程技术 Q3 ENGINEERING, MANUFACTURING
Laurent Terrenoir, J. Lartigau, A. Arjunan, Laura Laguna Salvadó, Christophe Merlo
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引用次数: 0

摘要

线弧增材制造(WAAM)实现了大型高价值金属部件的3D打印。然而,将WAAM集成到生产线中需要对工艺参数对所产生的材料特性的影响有一个关键的了解。因此,本研究调查了WAAM送丝速度(WFS)和焊炬速度(TS)对316LSi厚零件(2.5 cm-0.98 in)机械特性的影响。实验程序由训练矩阵提供信息,该矩阵允许对WFS和TS的极限抗拉强度(σult)、屈服强度(σy)、弹性模量(E)、失效应变(εf)、硬度(HV0.5)和印刷样品的尺寸精度(Da)进行参数分析。研究发现,尽管WFS和TS存在变化,但WAAM加工的316LSi零件具有各向同性材料特性。所开发的替代模型提供了五个重要的多项式模型,能够准确预测WAAM工艺参数对σult、σy、εf、E和Da的影响。研究发现,与WFS相比,TS是σult和εy最重要的WAAM工艺参数。相反,σy、E和Da主要由WFS驱动,而不是由TS驱动。总之,本文首次提出了一个准确的替代模型来预测由送丝速度和焊炬速度影响的WAAM 316LSi厚零件的机械特性。研究表明,WAAM处理钢的机械性能主要受潜在工艺参数的影响,这些参数为可调性能提供了巨大的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of wire feed speed and torch speed on the mechanical properties of wire arc additively manufactured stainless steel
Wire Arc Additive Manufacturing (WAAM) enables 3D printing of large high-value metal components. However, integrating WAAM into production lines requires a critical understanding of the influence of process parameters on the resulting material characteristics. As such, this research investigates the relationship between WAAM wire feed speed (WFS) and torch speed (TS) on the resulting mechanical characteristics of 316LSi thick parts (2.5 cm - 0.98 in). The experimental procedure is informed by a training matrix that allows parametric analysis of WFS and TS on the ultimate tensile strength (σult), yield strength (σy), elastic modulus (E), failure strain (εf), hardness (HV0.5) and dimensional accuracy (Da) of the printed samples. The research found that WAAM-processed 316LSi parts feature isotropic material properties despite variations in WFS and TS. The developed surrogate model offers five significant polynomial models capable of accurately predicting the influence of WAAM process parameters on σult, σy, εf, E and Da. The research found TS to be the most significant WAAM process parameter in comparison to WFS for σult and εy. On the contrary σy, E and Da were found to be primarily driven by WFS as opposed to TS. Overall, the paper for the first time presents an accurate surrogate model to predict the mechanical characteristics of WAAM 316LSi thick parts informed by wire feed speed and torch speed. The study demonstrates that the mechanical properties of WAAM-processed steel are primarily influenced by the underlying process parameters offering significant potential for tunable performance.
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来源期刊
CiteScore
6.80
自引率
20.00%
发文量
126
审稿时长
12 months
期刊介绍: Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
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