According to Korean news agencies, Samsung Heavy Industries (SHI) has developed the world’s first laser high-speed welding robot for the maritime sector, aiming to increase the productivity of constructing LNG carriers.
s reported, the robot specializes in welding membrane panels used in cargo holds of LNG carriers, which are made of thin stainless steel layers that come into direct contact with ultra-low-temperature liquid natural gas. The innovative robot welds a 2-meter-long membrane panel in under one minute as opposed to conventional plasma arc welding (PAW) techniques, which require around five minutes.
The technology uses a Wobble method, rotating the laser beam at precise intervals and speeds, and features defocusing capabilities and a laser displacement sensor to automatically locate curved welding positions.
The laser high-speed welding robot will become a core technology maintaining overwhelming competitiveness in the key process of building cargo holds in LNG carriers
… commented Choi Du-Jin, head of Samsung Heavy Industries’ Production Technology Research Center
Following the completion of the application testing, SHI intends to start full-scale manufacturing of this technology. The company also plans to expand its application to the cargo holds of ultra-low-temperature liquid hydrogen carriers in the future.