DNV GL and GSI cooperate on AI-based solution to improve welding efficiency

DNV GL and GSI cooperate on AI-based solution to improve welding efficiency
From left to right: Chen Zhongqian, chairman of GSI; Knut Ørbeck-Nilssen, CEO of DNV GL – Maritime Zhou Mushun, chief engineer of GSI, and Norbert Kray, regional manager for Greater China at DNV GL

DNV GL has signed a cooperation agreement with Guangzhou Shipyard International Company (GSI) for a joint development project (JDP) to improve welding non-destructive testing (NDT) efficiency through the automatic detection and assessment of radiography testing (RT) digital images.

Shipbuilding involves countless welds. X¬rays are used to detect weld imperfections, such as porosity, slag, and cracks. These X¬ray images need to be reviewed by non-destructive testing experts, which is very time-consuming. By replacing the manual assessment of welding seam indications with artificial intelligence algorithms, human efforts will only be necessary for the final acceptance review. Thus, unacceptable welds are reported much more quickly, which can lead to shorter building times.

Under the agreement, GSI and DNV GL AI Research Centre will utilise the latest artificial intelligence (AI) technology to develop a new solution for automatic detection and assessment of welding seam indications in RT digital images.

“This cooperation marks another milestone for GSI’s long and fruitful cooperation with DNV GL over the past 22 years,” said GSI chairman Chen Zhongqian. “As the largest modern integrated shipbuilding enterprise in South China, GSI has rich and detailed welding images. I am glad that with DNV GL’s advanced AI, this data can now be used to contribute to the future development of shipbuilding technology.”

“We are very proud to partner with GSI on this innovative project,” said DNV GL regional manager Norbert Kray. “Our ambition is to be a technology leader and explore new solutions for the benefit of our customers. We look forward to helping more Chinese shipbuilders to build high-quality ships with cutting edge solutions such as this.”

“We will build a web-based application to initially provide the new AI solution to ship yards for automated testing of weld seam quality,” said Dr Pierre C. Sames, director for DNV GL Group Technology & Research. “Our approach towards weld detection can not only be used in shipbuilding, but in other industries where NDT is used as a quality control tool,” he added.