GREEN LASER WELDING EWI is using its Miyachi Unitek™ LW2AG, 532nm wavelength, pulsed green laser. The 532nm wavelength produces visible green light. The state-of-the-art laser increases EWI’s capability for non-contact joining of small conductive parts such as gold and copper. EWI will use this laser for a variety of joining applications for its manufacturing customers […]
Read MoreMore and more, robotic welding is becoming a viable option for use in heavy fabrication. The sophistication and capacity of modern robot systems is suitable for large structures which require multi-pass welds. Processes used for heavy fabrication such as preheating, gas metal arc welding (GMAW), flux cored arc welding (FCAW), tandem gas metal arc welding […]
Read MoreUltrasonic soldering a variant of traditional iron soldering, where instead of requiring a flux to chemically reduce the metals’ surface oxides, the ultrasonic vibration from the soldering iron produces cavitation bubbles in the liquid solder. When the cavitation bubbles collapse, the mechanical motion of the collapse abrasively removes the surface oxides from the metal to […]
Read MoreWhen most people hear the word “welding” they think of the guy in the local garage with an arc welder and a mask, or the army of spot welding robots used to build a car body. You might be surprised to learn that there are many more welds in the sensors and motors in a […]
Read MorePROBLEM / OBJECTIVE Construction of Navy ships requires an extensive amount of out-of-position (horizontal, vertical, overhead) welding of high‑strength steel joints for units, blocks, and other major structures. The majority of these erection joints are currently accomplished with gas metal arc welding (GMAW) and flux cored arc welding (FCAW) processes. Travel speeds and deposition rates […]
Read MoreDesign engineers are increasingly faced with the need to join dissimilar materials as they are seeking creative new structures or parts with tailor-engineered properties. Sometimes a part needs high-temperature resistance in one area, good corrosion resistance in another. Structures may need toughness or wear resistance in one area combined with high strength in another location. […]
Read MoreStrip cladding is a high-productivity option for surfacing applications which uses a wide, flat strip in place of a wire electrode. Much like submerged arc welding (SAW), the process takes place beneath a granular flux which melts and forms a slag to protect the molten puddle. There are two variations of strip cladding; submerged arc strip cladding […]
Read MoreThis installment of “Meet the Team” features Randy Dull. Contrary to his name, he is a quite personable fellow that is very knowledgeable with all things arc welding. Please don’t hesitate to contact Randy if you have any questions or interests related to EWI or Arc Welding. You can reach him at 614.688.5095 or [email protected]. […]
Read MoreFor decades, the primary joining process used in assembly of electronic components has been soldering. Low-cost equipment and easy training for assembly personnel are two advantages. Repairability and ease of visual quality inspection of soldered joints are others. However, more rigorous usage of components, ranging from medical electronics to military weapons systems, can challenge the […]
Read MoreFrom Welding Design and Fabrication – The Freedonia Group, an industrial market forecast group, is predicting annual increases of 6.4% in U.S. demand for welding equipment and consumable products over the next three years, bringing the total market value to $7.1 billion by 2015. The Freedonia Group stated the increases in demand will be driven by continued […]
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