Addressing Challenges in Transmission, Distribution, and End-use Systems With growing interest from industry and a plausible zero-carbon source of hydrogen emerging, the need for a better understanding of the effects of high H2 environments has become increasingly important. The impact of hydrogen blending on susceptible components over time is currently not well-established; The development of […]
Read MoreWhat impact does the presence of H2 have on a pipe weld, and what kind of damage can result from it? These are important questions that must be answered as development of a broad hydrogen infrastructure is progressing. The EWI structural integrity group has created a new modeling approach to examine the hydrogen diffusion into […]
Read MoreUltrasonic Industry Association Symposium 50 A Multi-access event (live and virtual) April 25-27, 2022 University of Warwick, Coventry, England Amin Moghaddas, EWI Project Engineer, will present Development of Sonotrode with Replaceable Tip for Use in Ultrasonic Metal Welding at UIA50 on April 25th. The live presentation will take place at 2:00 pm BST. For online […]
Read MoreWhen it comes to joining dissimilar materials in lithium-ion batteries, ultrasonic metal welding is fast and efficient. However, due to tool wear, the sonotrodes used in battery joining have to be completely replaced frequently. EWI has developed a new design approach that uses finite element analysis (FEA) to evaluate ultrasonic welding tools with replaceable knurl […]
Read MoreWhile spot weld performance has become easy to simulate in recent years, failure models for arc-welded sheet steel have never proved very reliable. Recently, EWI developed and tested a new approach to modeling failure of arc welds used in sheet-steel construction. The work is described in a paper by EWI associates Bill Mohr and Amin […]
Read MoreA standard electric vehicle (EV) automotive battery can be decomposed into cell level, module level, and pack level. A cell mainly includes the anodes and cathodes, a module includes multiple cells, and a pack includes multiple modules. The three most common metal-to-metal joints in a lithium-ion battery pack are foil-to-tab, tab-to-tab, and tab-to-bus. All three […]
Read MoreRecently, EWI conducted a study in which ultrasonic vibrations were applied to the wire drawing process to improve both final wire quality and process performance. This investigation demonstrated positive results in several areas including wire roughness, dimensional accuracy, microstructure, draw force, and strength. It also reduced the number of die passes required to complete the […]
Read MoreUltrasonic Industry Association Symposium 49 Virtual Meeting April 26-28, 2021 EWI Project Engineer Amin Moghaddas will present “Improving Performance and Productivity of Ultrasonic-assisted Manufacturing Processes Using Response Surface Methodology” at UIA 49 on April 26th.
Read MoreHow can you harness the power of high-power ultrasonic technology to optimize your manufacturing processes? EWI Project Engineer Amin Moghaddas recently developed a technique using special resolution V design and RSM to characterize and optimize ultrasonic-assisted drilling for aluminum 6061. This work is discussed in his paper, Modeling and Optimization of Ultrasonic-Assisted Manufacturing Process. You […]
Read MoreAccording to a report recently published by Fortune Business Insights,1 market demand for vehicle electrification was estimated at 8.6 million units in 2018. This market is projected to exhibit a compound annual growth rate of 21.1% in the forecast period, 2019-2026 and reach 40.6 million units by 2026. A big part of this market is […]
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