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Media

 

Lean analysis 1 duty cycle measurement

Measurement of welding duty cycle in furniture manufacturing to justify robotics

Lean analysis 2a

Measurement of welding duty cycle in furniture manufacturing to justify robotics

Lean analysis 2b duty cycle measurement

Measurement of welding duty cycle in furniture manufacturing to justify robotics

Lean analysis 3 duty cycle measurement

Measurement of welding duty cycle in furniture manufacturing to justify robotics

Phased array inspection on Tee weld through the web

Phased array ultrasonic Testing ( PAUT inspection) of a Tee weld from the web. Web and flanges are 4 inches and 2 inches thick.

Phased array pipe inspection pipe wizard from Olympus

Phased array PAUT inspection set up for a pipe using an automated scanner. Please note the speed of data acquisition!

Phased array inspection on Tee weld through the flange

Phased array PAUT inspection of a Tee weld from the flange, providing faster inspection compared to conventional UT. Further saving comes from reduced grinding and base metal preparation compared to conventional UT

Carbon arc gouging operation

Carbon arc back gouging operation while completing a butt weld. The back gouging ensures removal of metal from the second side so that a full penetration joint can be completed subsequent to the gouging operation

SAW welding of box girders

Automatic Submerged arc welding of a bridge module using laser pointer and preheating torches ahead of the welding arc. Preheating from one side is adjusted to provide sufficient heat to penetrate the metal thickness and remove moisture at the point of welding. Preheating ensures minimizing the risk of hydrogen cracking. Further precautions are also needed on control of welding consumables to avoid humidity pick up and control of restraint during welding

Phased array boiler pipe butt weld inspection with Cobra scanner

PAUT inspection of boiler tubes in lieu of radiographic inspection using a scanner. Note the rapidity of the inspection operation ensuring uninterrupted work flow, as other workers can still continue working in the boiler cavity while inspection progresses. The results of the inspection are known immediately so that the welding operation is least interrupted while saving precious time during a shut down.

Preheating to avoid hydrogen cracking on thick plate

Flame preheating operation for thick tee welds. Preheat reduces the risk of hydrogen cracking, sometime also called cold cracking. The cracking can occur after the pieces have become cold to touch, and hence the term cold cracking. Hydrogen cracking may occur several days after the welding is completed making in-process control of the welding operation essential to avoid it. It is a common practice to perform a magnetic particle inspection of the welded joint after 48 hours to confirm absence of hydrogen cracking in the weldment.

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