Ultrasonic welding is based on high-frequency vibrations (typically between 20 and 40 kHz) that cause surface friction and viscoelastic heating at the weld. The most important process parameters are ...

The state is bringing in a private sector construction contractor to support inspection and repairs for the bridge, which is closed due to safety concerns.

In a landmark achievement, the Welding Research Institute (WRI) in Tiruchirappalli, Tamil Nadu, has made a "significant contribution" to the successful construction of the New Pamban Railway Bridge, ...

the ability to handle all types of welding joints including straight-to-straight, straight-to-bent, and bent-to-bent connections, and fully automated ultrasonic inspection. Pipeline welding has ...