Feasibility Study of 316L Stainless Steel for the Ultrasonic Consolidation Process |
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| Institution: | 1. Université de Toulouse, INPT, UPS, Laboratoire de Génie Chimique, 118 Route de Narbonne, F-31062 Toulouse, France;2. CNRS, UMR 5503, F-31062 Toulouse, France;1. Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;2. School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;3. Institute of Industrial and Equipment Technology, Hefei University of Technology, Hefei 230601, China;4. Key Laboratory of Liaoning Advanced Welding and Joining Technology, Dalian University of Technology, Dalian 116024, China;5. Shanghai Shipyard CO., Ltd., Shanghai 200000, China;6. School of Architecture and Civil Engineering, Northeast Petroleum University,99 Fazhan Street, Daqing, China;1. Department of Mechanical & Industrial Engineering, University of Iowa, Iowa City, IA 52242, USA;2. Manufacturing Systems Research Lab, General Motors R&D Center, Warren, MI 48090, USA |
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| Abstract: | The viability of using 316L stainless steel in the ultrasonic consolidation process was examined in this work. Ultrasonic consolidation is an additive, free-form manufacturing process that employs ultrasonic welding and machining to form a part. The process ultrasonically joins layers of metal together by welding them one at a time. Once four layers of metal foil are welded together, welding is suspended and the system machines the part outline, and repeats this cycle until a component is completed. Experiments were conducted to determine the feasibility and processing parameters for ultrasonically welding stainless steel. Mechanical testing and optical microscopy were conducted. 316L stainless steel was successfully welded. Increasing welding amplitude and decreasing welding speed were the most effective way to increase weld peel strength. Unlike work in aluminum alloys, these experiments found no relationship between horn force and peel strength. Rough processing windows for ultrasonically welding 316L were identified. |
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