I have a question regarding ASME B16.34.
In ASME B16.34,
there is para. 6.1.5 Contours at Body Ends (a)Buttwelding Ends.
It says the welding preparation shall not reduce the body wall thickness to less than the values required by para.6.1.1 or 6.1.4 within a region closer to the outside surface of the body neck than tm measured along the run direction.
My question is where the region closer to the outside surface of the body neck means. And what does it mean by saying tm measured along the run direction ?
Your explanation would be greatly appreciated together with any sketch if possible.
In ASME B16.34,
there is para. 6.1.5 Contours at Body Ends (a)Buttwelding Ends.
It says the welding preparation shall not reduce the body wall thickness to less than the values required by para.6.1.1 or 6.1.4 within a region closer to the outside surface of the body neck than tm measured along the run direction.
My question is where the region closer to the outside surface of the body neck means. And what does it mean by saying tm measured along the run direction ?
Your explanation would be greatly appreciated together with any sketch if possible.