Welding Keyhole. The heat-affected zone is always limited hence material distortion is accordingly low. Keyhole welding is generally done with the Plasma torch in the 1 G using automatic movement for the torch Linear welding or the job circumferential welding as may be required.
Compared with conventional TIG welding keyhole TIG has superiority in energy density welding efficiency and penetration ability. It is used for butt joints or open groove weld joints. It can be distinguished between conduction mode and keyhole mode welding between pulsed wave and cw laser welding and between CO 2-lasers with a wavelength of 10 μm and various laser types of about 1 μm wavelength.
When it strikes the weld pool it generates the splashes of molten metal.
It is used for butt joints or open groove weld joints. Tig welding Walking The Cup pipe. K-TIG is a single-pass full-penetration keyhole welding technology that performs multi-hour conventional TIG welds in just 3 minutes whilst providing the sort after cleanliness of TIGGTAW. A deeper understanding of laser welding allows improving weld quality process control and process efficiency.