Radius of Contact During Friction Surfacing of Stainless Steel 304L: Effect of Spindle Speed and Rod Diameter

IF 2.4 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Journal of Manufacturing Science and Engineering-transactions of The Asme Pub Date : 2023-10-04 DOI:10.1115/1.4063653

Hemant Agiwal, Hwasung Yeom, Kumar Sridharan, Shiva Rudraraju, Frank E. Pfefferkorn

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Abstract

Abstract The ‘radius of contact’ or the ‘real-rotational contact plane’, has been increasingly mentioned terminology in friction surfacing. However, the fundamental understanding of the flow dynamics behind this phenomenon is still very limited. The goal of this study was to understand the influence of spindle speed and consumable rod diameter on the flow dynamics and radius of contact during friction surfacing of 304L stainless steel over a substrate of the same material. Friction surfacing was performed using consumable rods with diameters of 4.76 mm, 9.52 mm, and 12.7 mm while using spindle speeds from 1,500 RPM to 20,000 RPM. The impact of spindle speed on deposition morphology, including the radius of contact, was studied. The radius of contact was calculated empirically and was found to be inversely proportional to the tangential velocity of the rod. The coupling between flow stresses and localized forces is hypothesized to be the key factor behind the variation of the radius of contact with processing conditions.

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304L不锈钢摩擦堆焊接触半径:主轴转速和杆径的影响

“接触半径”或“实旋转接触面”是摩擦表面加工中越来越多地被提及的术语。然而，对这种现象背后的流动动力学的基本理解仍然非常有限。本研究的目的是了解主轴转速和耗材杆直径对304L不锈钢摩擦表面在相同材料基体上的流动动力学和接触半径的影响。采用直径为4.76 mm、9.52 mm和12.7 mm的耗材进行摩擦堆焊，主轴转速为1,500 RPM至20,000 RPM。研究了主轴转速对接触半径等沉积形貌的影响。根据经验计算接触半径，发现接触半径与杆的切向速度成反比。假设流动应力和局部力之间的耦合是接触半径随加工条件变化的关键因素。

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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来源期刊

Journal of Manufacturing Science and Engineering-transactions of The Asme 工程技术-工程：机械

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