What is As-Welded in Welding?

As-welded is the term given to weld metal and weldments when they are in their finished state after welding, but before any heat treatment or other thermal, mechanical, or chemical processes have been applied. This means that the as-welded state is the final condition of the weld metal and weldments before any fabrication steps are carried out.

The as-welded state of the weld metal can be affected by a number of factors, such as:

  • the type of welding process used,
  • the composition of the base metals being joined,
  • the filler material used,
  • and the welding parameters employed.

These factors can all influence the microstructure and properties of the resulting weld metal. For example, using a higher welding current will usually result in a more coarse-grained microstructure, while using a lower welding current will tend to produce a fine-grained microstructure.

The as-welded state of the weldments is also influenced by the welding process and parameters used. In general, the as-welded state of the weldments will be similar to the as-welded state of the weld metal. However, there are some differences that can occur. For example, if the welding process used results in incomplete fusion or penetration, then the as-welded state of the weldment will be different from that of the weld metal.

What are the 3 types of welding?

The three types of welding are:

  1. arc welding,
  2. resistance welding, and
  3. solid state welding.

Each of these welding processes produces weldments in a different as-welded state. For example, arc welding usually produces weldments with a high degree of fusion and penetration, while resistance welding often results in weldments with incomplete fusion and penetration. Solid-state welding can produce either type of weldment, depending on the process parameters used.

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