In my last blog Where are all the skilled welders I received many good answers, ideas, and comments through my social media page Linkedin. The question that kept reoccurring was ‘what is the definition of a skilled welder?’. Although everyone has their own opinion, most would agree that being a skilled welder involves experience in multi-arc […]
Read MoreFor many years, engineers have been fascinated with, and have come to rely on, the ability to create parts directly from CAD models for the purpose of visualizing design concepts or verify functionality. Stereolithography has served this need quite well for developing appearance models and prototypes. However, since these parts are generally fabricated from resins, […]
Read MoreEWI has developed, tested, and now markets compounds that increase the penetration of gas-tungsten-arc-welds (GTAW). These penetration enhancing compounds are marketed under the trade-name EWI DeepTIG. Three different compounds are available: CS-325 for carbon steels, SS-7 for stainless steels, and NI-139 for nickel alloys. A comparison of GTA welds made on A36 steel, with and […]
Read MoreWind towers are composed of multiple sections which are fabricated in production facilities, then bolted together on-site. Each section is comprised of several sub-sections joined together. The sub-sections are made by rolling steel plate, then welding the longitudinal seam. The sub-sections are then joined together via a circumferential seam weld. Submerged arc welding (SAW) is […]
Read MoreA few weeks ago, I wrote about a greener way to Solder. Today I want to talk about a natural extension of this technology, Ultrasonic Brazing. Brazing is a joining method commonly used in various industries resulting in higher joint strengths than soldering. It has the ability to join dissimilar materials, join complex assemblies, and […]
Read MoreIn this energy era where the buzzwords are clean and green, people and companies alike are trying to do their part by using non-toxic and non-polluting materials, manufacturing processes, etc. As everyone knows, most soldering is accomplished using flux, which reduces the oxide layers on the surfaces to be joined thereby facilitating the joining process. […]
Read MoreEWI SonicSolder™ is an exciting innovation for wetting materials previously considered to be non-solderable. The binary Sn-Al lead-free solder alloy allows for successful joining of aluminum, copper, titanium, glass, ceramics, and other difficult-to-bond materials. It can be used for both micro-joining and large scale applications, is bio-compatible, and can be readily formed into usable shapes, […]
Read MoreThe European Union’s (EU) directives on Waste Electrical and Electronic Equipment (WEEE) and Restriction on Hazardous Substances (RoHS) that became effective in 2005 and 2006, respectively, restricted the use of hazardous materials like lead-based solders in consumer electronics applications. The automotive industry, for its part, is dealing with the EU’s 2002 End-of-Life Vehicle (ELV) directive […]
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