What are the methods of removing a specimen of weld from a suitable position in the joint such as a stop and start position using a non-thermal process?

Answer 1

One method of removing a specimen of weld , using a non-thermal process would be to use a non-themal process. A saw. The reason this is rarely used is the difficulty in cutting some metals or shapes. The sample usually taken is called a "coupon" . When taken from a pipe weld it is cut out with a torch and ground clean for inspection. to cut the same piece out of a pipe , with a saw would require too much cutting and due to the nature of the shape could be dangerous.

Answer 2

One method of removing a specimen of weld from a stop and start position in a joint using a non-thermal process is by employing mechanical methods such as grinding or machining. Another method involves utilizing abrasive cutting techniques like water jet cutting or laser cutting to extract the weld specimen without introducing heat. These non-thermal approaches help in preserving the integrity of the specimen for further analysis without altering its metallurgical properties.