how are steel chains made
MY question is (WHAT IS DOWNHILL WELDING) The correct term is Down Hand Welding. Most welds in the vertical position are made from bottom to top. Down Hand means welding from the top to bottom. These welds are usually made on thin metal as the heat input is lower, thereby reducing penetration/burn thru.
When two pieces of metal are joined by welding they become one as if they were made that way. Welding replaced riveting and reduced the amount of metal used while producing a stronger joint.
A weld stud made by Nelson Stud Welding, Inc.
Every welder ought to have many clamps! C-clamps, vice grips, wide mouth vice grips (snap clamps) and bar clamps; a nice dead blow (metal mallet covered in rubber,) wire brush to clean welding area before and after weld, good grinder to grind down a finished weld. Also setup blocks, but that's only in R&D and precision welding shops.
Usually some sort of metal, but the specific metal can vary. Many chains are made of steel, which is a mixture of iron and some other element, usually carbon.
A very large organic compound made up of chains of smaller molecules is a polymer.
polymers
condensation
Copper and brass
copper
chains of 20 basic amino acids
molecules
no a food web is made up of many food chains
MY question is (WHAT IS DOWNHILL WELDING) The correct term is Down Hand Welding. Most welds in the vertical position are made from bottom to top. Down Hand means welding from the top to bottom. These welds are usually made on thin metal as the heat input is lower, thereby reducing penetration/burn thru.
METAL !
When two pieces of metal are joined by welding they become one as if they were made that way. Welding replaced riveting and reduced the amount of metal used while producing a stronger joint.
4G is a welding position. The '4' means the weld is to be made in the overhead position. The 'G' means the weld is a groove weld.