Welding machines are better defined as tools or equipment which use heat and pressure to create a joint between two pieces of metals or materials. Welding equipment find great use in various production units that produce engineering materials and in automobiles and aerospace industries. They are also used widely in manufacturing companies of train carriages and coaches. Welders have a widespread use in most of the industries.
Looking at welders as equipment of the industries is a narrow perspective. They are also successfully used in small shops of repair and small scale manufacturing workshops. Welding machines are of different kinds and depending upon the source of energy used to create welds; these welding machines are classified as Arc Welders; Fusion Welders; Plasma Cutting Machine; Resistance Welders; Solid State Welders and other similar devices.
Out of all these welding equipment, MIG welding machines are most versatile and are available in various sizes and find different uses. They are available in small and light portable sizes. Unmatched MIG welders are most suited for high performance task and unmatched services. Their USP is that they can utilize all cold running temperatures and prevent distortion of metals. MIG welders work very well on thin metals as well. These small welding MIG machines are thus ideally suited for small shops of automotive repair and also small tasks at home.
There are apart from the patent welding machines mentioned above; some new welding machines which have excellent features and unmatched performance capabilities. Portable welders are another class of welding machines, and as the name suggests, these welders can be used most anywhere power is available. Portable welders can be used by drawing power from the engine of cars and trucks and are very easy to operate as well. They find good use for mechanics on the move and can perform welding actions even on roads. Most portable welders have insulated plastic body and use a single phase power supply. The sleek and sturdy designs of these machines make them an all purpose machines.
Another important welding machine that can be put in the class of small scale welding useful for shops and homes is the plasma cutter. It is essentially used to cut steel and other metals that conduct electricity. The plasma cutter however is used in heavy industries, with developed technology plasma cutters have become handy and cheap to be owned by small shops and hobbyists alike. Hand plasma cutter is very useful in such mechanic shops and even homes of would be welders as they are very simple to operate.
Thus it can be said that welding is essentially an industrial process, welding as a process and also as a profession is increasingly being taken up on a smaller scale as well. Most people find a small welding shop a profitable profession and thus invest little money in welding machines of smaller size and stature. These welders however are as competitive as there bigger counterparts, because it is a well accepted fact that technology is shrinking the world and its equipment.