I just heard that EWI was listed on COLUMBUS BUSINESS FIRST’s prestigious “Central Ohio Innovators” list in 2012. While this may not be a surprise to EWI associates and partners, its great recognition for the leading-edge work – including nine patents between 2006 and 2010 – developed by our small corps of engineers. COLUMBUS BUSINESS […]
Read MoreGas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) are both regularly used for welding aluminum. GTAW is a slow process when compared to GMAW and GMAW is typically used when extremely high weld quality (with respect to porosity) is not required. GMAW works well for welding aluminum in structural, automotive, or thick […]
Read MoreLightweighting is an important focus for design folks in the automotive and aerospace worlds. Reducing the weight of a vehicle helps to improve fuel economy and reducing the weight of an airplane additionally enables more cargo to be carried. Magnesium-Aluminum-Zinc (Mg-Al-Zn) alloys have the highest strength to weight ratios of structural metals. AZ31B (Mg-3Al-1Zn) is […]
Read MoreThis week the “Meet the Team” series introduces George Ritter of the EWI Materials group. George specializes in the areas of adhesives and plastics. George has spent over 30 years in industrial research environments, with much of that time spent on structural adhesives bonding applications. Please feel free to contact George if you have any […]
Read MoreIn this week’s edition of TIME Magazine, EWI has been recognized as a player in the recent economic success of our city and region. As the Curious Capitalist notes in the column “The Columbus Comeback,” EWI is part of the economic engine making the city’s economy hum again. In the article, TIME referred to EWI […]
Read MoreSEPTEMBER 28, 2012 (COLUMBUS, OHIO) – Jim Tighe, Chief Financial Officer and Vice President of Administrative Services at EWI, has been designated CFO of the Year for Small Organizations by Columbus Business First Newspaper. Tighe’s award follows his nomination by EWI associates and selection by an independent panel of financial experts – and it comes […]
Read MoreWhen using a consumable-electrode process such as gas metal arc welding (GMAW) or submerged arc welding (SAW), the three primary process variables are arc current, wire feed speed (the rate at which the consumable electrode is fed from the welding torch), and arc voltage. Current and wire-feed-speed cannot be varied independently. To maintain the same […]
Read MoreSubmerged arc welding (SAW) is a high deposition rate process when compared to gas metal arc welding (GMAW) or gas tungsten arc welding (GTAW). Certain applications such as large flat panels, girth welds in pipe, or spiral pipe mills can benefit from techniques used to increase the deposition rate, and consequently, the productivity of the […]
Read MorePlasma arc welding (PAW) is very similar to gas tungsten arc welding (GTAW). If you look at the schematic shown in Figure 1 you can see that the arc in PAW is created between a non-consumable tungsten electrode and is constricted by passing through an orifice. This provides a more columnar arc with a higher […]
Read MoreBelow are highlights from Mark Norfolk’s presentation on Ultrasonic Additive Manufacturing (UAM) a few days ago at the ASM Symposium at GE’s Global Research Center in NY. Mark is a senior project manager at EWI and the CEO of Fabrisonic, an EWI spinout. Ultrasonic additive manufacturing (UAM) is a novel new process that produces true metallurgical bonds with full […]
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