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microjoining

EWI Improves In-House High-Magnification Measuring Capabilities

Designers at EWI often need to take precise measurements of extremely small parts. Measurement of small parts using calipers has two problems: Errors associated with measurements using traditional calipers become significant on a small scale The pliable nature of small parts makes them susceptible to distortion when measured with calipers, which yields inaccurate results A […]

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Free Technical Webinar: Ultrasonic Metal Welding Foils to Tabs for Lithium Ion Battery Cells on March 22nd

EWI is offering another free technical webinar on Tuesday, March 22 at 2pm EST. Mitch Matheny will present “Ultrasonic Metal Welding Foils to Tabs for Lithium Ion Battery Cells.” Click here now to sign up. Registration is open to the public. The one-hour webinar will review recent advances in tool design for ultrasonic metal welding of multi-layer foil […]

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Paper: Gas Tungsten Arc Welding In-process Monitoring Techniques for Electronic and Medical Device Applications

Gas tungsten arc welding is an approach for microjoining with great potential for weld quality assessment solutions. EWI has developed a technique for real-time monitoring of micro-GTAW welds using commercially available equipment.

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Optimized Tooling for Foil-to-Tab Microwelding: New Article

Weld joints in electronics and biomedical devices are getting smaller and more complex, while reliability remains a high priority. This is certainly true when it comes to manufacturing battery cells…

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Dissimilar Materials Workshop in Columbus on January 26th

Do you face the challenges of dissimilar materials joining in your work? If so, you should plan to attend the AWS Workshop of Dissimilar Materials in Columbus, Ohio, on January 26, 2015. The workshop will cover developments across a range of industry applications, and will include topics such as process technology, materials, design, and modeling. The program will feature […]

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Ultrasonic soldering for medical and other electronic devices

Ultrasonic 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 […]

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Making micro-scale wire welds

When 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 […]

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