The EWI Materials and Lab Services teams are very excited to announce the acquisition of a Glow Discharge Spectrometer (GDS), bolstering our current chemical analysis capabilities. The GDS unit will allow EWI to perform bulk chemical analysis in-house, very quickly, and extremely accurately. Our GDS is currently calibrated for low alloy steels, stainless steels, nickel […]
Read MoreIn the previous posting, I talked about the importance of having a corrosion resistant surface for reliable bonding in any application involving adhesion — adhesive bonding, coatings, paints, or plastic components. In fact all adherent layers depend largely on the condition and stability of the interfacial surface. Much of my time is spent investigating surfaces […]
Read MoreEWI launched the summer 2010 issue of its Insights newsletter. In this issue, you can read about: Kimberly Gibson’s (Director of EWI Energy Center) Visit to China Friction Stir Welding of Steel – Mechanisms of Tool Deformation and Wear EWI’s New Rail Manufacturing Technology Center EWI & AWS Leadership Conference on Future of Materials Joining […]
Read MoreFriction stir welding has ventured into the age of what I would call, the adolescent years. You know, that age where you see things change from “Dad, would you like the remote” to “Dad, give me the remote”. Those of you with teenagers know what I mean. Friction stir has good traction for most of […]
Read MoreHybrid arc welding pairs two arc welding processes such as GTAW (Gas-Tungsten Arc Welding) and PAW (Plasma Arc Welding), or GMAW-P and PAW. Predominant advantages are high penetration up to 3/8-in (9 mm) with keyhole PAW and simultaneous filling of a small vee groove to weld ½-in or more in a SECB configuration for stainless […]
Read MoreUltrasonic Metal Welding is a unique process that has typically been limited to applications involving softer, high conductivity alloys. Skipping over the physics and metallurgy of the process; let’s just say that high-frequency vibrations are transferred to the work pieces via a set of ultrasonic tools to create a solid-state bond. For welding softer materials, […]
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 MoreSoon, EWI will be adding a glow discharge spectroscopy system from Leco® to our lab. The system will give us the ability to perform accurate elemental analysis of common steels, stainless steels, titanium, copper and aluminum alloys. Importantly, having the equipment in-house will reduce our customers’ leadtimes on chemical testing from several days to a few […]
Read MoreIn-service Welding Procedure Development for Super Duplex Stainless Steel in Low Temperature Applications Welding onto anything that contains product at pressure and/or under flow is considered an in-service weld. In-service welding is a common industry practice in both the transmission and refining industry with the vast majority of these welds being deposited onto carbon steel […]
Read MoreMaterials that cannot be welded must be joined with mechanical fasteners, solder, braze, or adhesives. For extended service above 450oF, a solder or braze is required. At lower operating temperatures, adhesive bonding is used. Adhesives can bond many diverse material combinations and offer the best approach for joining dissimilar materials in corrosive environments. Fasteners, brazes, […]
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