There are far more than 5 types or processes of welding. Currently the American Welding Society (AWS) states that there are more than 80 different welding and joining processes. However, some of the common welding processes include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), flux cored arc welding (FCAW), and oxyfuel gas welding (OFW).
Different material welds differently depending on polarity. There are also different types of welding rods, so polarity must be tested.
In Pressure Welding the parts(work pieces) to be joined are heated only up to the plastic state and then fusedtogether by applying the external pressure.the two different types of pressure welding are:forge welding and resistance welding
EFW: Electric Fusion Welding is a more general term which includes Electric resistance welding (ERW) and other types of welding such as Arc welding.
there are one types of weilding is weilding.
Read here under this section, very informative: http://en.wikipedia.org/wiki/Welding#Processes
Different material welds differently depending on polarity. There are also different types of welding rods, so polarity must be tested.
It is a good idea to purchase and utlize a welding fume extractor. There are different types of welding fume extractors and brands available for purchase.
There are many different types, each has it's pros & cons.
In Pressure Welding the parts(work pieces) to be joined are heated only up to the plastic state and then fusedtogether by applying the external pressure.the two different types of pressure welding are:forge welding and resistance welding
Welding, machining, molding, casting, etc
There are a number of different welding techniques you will learn at welding school. Some of the techniques you will learn include Mig, Tig, Stick & Pipe.
EFW: Electric Fusion Welding is a more general term which includes Electric resistance welding (ERW) and other types of welding such as Arc welding.
Gas, arc, mig and tig.
there are one types of weilding is weilding.
Read here under this section, very informative: http://en.wikipedia.org/wiki/Welding#Processes
There is a vast variety of welding electrodes, each differing depending on the task it is meant for and how it affects the welding process. Electrodes are made to deal with a specific kind and range of electrical current and come with different coatings and in different sizes depending on the welder's requirements
Branson Ultrasonic offer welding technologies. For example, they offer Linear Vibration Welding, Orbital Vibration Welding, as well as many other types of welding tehcnologies.