Types Of Welding – Classification of welding processes
Welding is a process of permanently joining two or more parts by the application of heat and (or) pressure. As per American Welding Society 50 different welding processes available today; some are very popular among the industries such as SMAW, GMAW, GTAW, SAW, FCAW etc. whereas some are very specific and limited to few industries such as USW, RSW, DW etc.
Welding processes are broadly classified as fusion welding and solid state welding;
FUSION WELDING: In Fusion welding coalescence is done by melting the base metals by the application of heat. Required heat is generated by an electric arc formed between the electrode and the workpiece. Very often filler metal is also used. Commonly used fusion welding processes are:
- Arc Welding
- SMAW (Shielded Metal Arc Welding or stick Welding)
- GMAW (Gas Metal Arc Welding or MIG welding)
- GTAW (Gas Tungsten Arc Welding or TIG Welding)
- SAW (Submerged Arc Welding)
- FCAW (Flux Cored ARC Welding)
- PAW (Plasma Arc Welding)
- Carbon Arc Welding
- Stud Welding
2. Resistance Welding
- Resistance Spot Welding
- Resistance Seam Welding
- Resistance Projection Welding
- Flash Welding
4. Others
- Electron beam welding
- Laser beam Welding
SOLID STATE WELDING: In solid state welding, joining is done by the application of pressure alone or a combination of pressure and heat. Normally the base metal is not reached to the melting point, if heat is applied to obtain the coalescence and filler metal is not used. Some of the solid state welding processes are:
- Diffusion welding (DFW)
- Friction welding (FRW)
- Ultrasonic welding (USW)
- Cold Welding
- Forge welding
- Explosion welding (EXW)
In the following video, I have simplified the different welding processes and categorized for your easy understanding. Please watch this video and share your views as well as queries. I will be glad to answer your queries.
Great explanations for the non-welder.
Thanks Bob. Its just a start, I will keep on adding more and more useful information and videos on this site. You can watch my youtube videos at http://www.youtube.com/weldingandndt
Great explanations for the non-welder.
can a person with Electrical Diploma take a welding inspectors course ? and will he get a job as a welding inspector?
Yes. For eligibility details you can see AWS/CSWIP website
Great i hope I can get more information this channel
Thanks
Great stuff we need more welding info
Thanks more info
We all encourage you give so many vedios like this
I Have International MIG/ MAG Welding Certificate
anyone can help me, i am master management student, i required to do research methodology subject, since i am in oil n gas industries, therefore i would prefer to choose welding technology as my research methodology
Sir please aap welder trade ke multiple choice questions ke upar video banaye sir