Defects in the alloy layer defeat the purpose of cladding and result in costly scrap, re-work or even failure of the component in the field. Monitoring the overlay process is difficult due to geometry and high temperatures.
Micro welding processes call for optical magnification and high resolution cameras due to the fine scale of the weldments. The welding camera should provide an excellent image during both welding and non-welding.
Without being able to directly observe the weld, it’s very hard to identify experimental mistakes or conceptualize the effect of parameters on weld puddle behavior. However, a high-speed welding camera can lift the curtain on droplet detachment, spatter generation, puddle dynamics, and other secrets of the weld.
Process operators are faced with making accurate adjustments to the equipment during welding, and the right camera provides the operator with a clear, real-time view of the weld puddle that helps him to take corrective actions and keep a constant eye on the welding process.
Plasma keyhole welding offers high integrity welds and high productivity, and finds plenty of applications in industries that manufacture products from stainless and titanium; however, the torch is often positioned such that visual monitoring of the weld process by the operator difficult.