Welding Metal Melting. Welding is ideal for metals with similar or the same melting points. Melt your metal with the flame.
In the simplest terms welding can be defined as a technique to join metal parts by heating and melting touching parts at a certain point and cooling it down to become a rock-solid bond. However in welding a mechanical connection is formed whereas in the process of soldering usually an electrical connection is formed between metals. Soldering is a method that is used in electronics and circuit boards and is similar to welding.
The oxide coatings melt at temperatures considerably higher than the melting point of the base metal and create problems.
For the novice DIY welder MIG Metal Inert Gas welding is the best starting point. Heat at a high temperature causes a weld pool of molten material which cools to form. The oxidized coating may enter molten weld metal and create discontinuities which greatly reduce the strength and ductility of the weld. 67 rows Metal Melting Temperatures.