Most mound ceremonial centers are built near rivers and lakes. Mound builders lived in small communities of families led by elders. They made pilgrimages to the closest ceremonial centers to make offerings to their gods and to bury their loved ones. The ceremonial centers were built on timbers, often with a temple for sacrifices on top and crypts to bury the dead underneath.
There are many different factors that may determine welding sequence. Of course, a 1G weld is defined as a Flat (1) Groove (G) weld and the 1G is usually used when describing the position of welding any flat material such as bar, sheet, or plate. The thickness of the material may affect sequence.
Tungsten Inert Gas Welding: MIG welding is more common than TIG welding due to the process being a lot quicker. MIG welding is an easy process to learn than TIG welding. Both welding processes superheat the parent metals into a liquid state, then using a filler material to fuse the parent metals together.