Welding is the best option of joining any same or different type of metals. In every industry or welding industry welders perform their job in welding the metals and give the finishing touch to the welded materials. The welding process takes place even at household environment.

By following various welding types and techniques welders perform their role to weld out any sort of metal. The job of welding is not so easy if it is not followed by various safety measures. It involves lot of risk and any mismatch in any of equipments or source will cause serious injuries or harm to them self and to others or sometimes it leads to the death.

A person who is involved in job of welding should be well trained and expert in welding techniques. If he is expert in one welding technique or process then he should stick on that and if interested can learn the other techniques under the supervision of expertise who is already expert in that following methodology of weld.

The work of welding can be carried at any place and there is no possibility of predicting any work place as the best and protective one. Therefore it becomes necessary for the welder to do his job by protecting himself wearing required jacket, gloves, caps, goggles, clothes, shoes, and handling of the welding equipments depending on the need of the particular weld process.

The flash butt welding technique is widely used in the construction industries to weld boilers. One of the main advantages of flash butt welding is that it provides high welding quality due to solid fusion and also the process is fully automated without any manual effort.

In addition to this, no consumables or shield gas are used in flash butt welding thereby reducing the chances of materials getting contaminated.

The flash butt welding is used to join work piece of metals, railway tracks, rail chains and pipes, by welding the ends of the material using electric heating and electric arc. The welding process is conducted in three sections. The initial process called as pre heating is carried out under low welding pressure and in the flashing process which is the second phase the metal surfaces are burnt off. Finally in the upsetting of material phase, the irregular surfaces are finned removing the oxidized material.

The technique of joining the work piece of metal, railway tracks, rail, chains, pipe, are placed end- to -end with the help of electric heating and an electric arc is made which melts and welds the ends of the materials . Flash butt welding technique is also used in fabrication shops and also in construction industries to weld the boilers.

The welding process is sub categorized into pre heat, flash, and upsetting the materials. Pre heating of material is carried on under low welding pressure and when the heating of joints gets over flashing process starts where the joint surface metals are burnt off for making them into the equal surface. Once the flash welding process gets over upsetting of welding process starts where the irregular surfaces are finned removing the molted and oxidized materials. The result of welding is extremely strong and smooth joints.

Advantages of using flash butt welding

- It provides high welding quality because of solid fusion.
- The defect level is low because there is lack of molten in welding process.
- Since the technique of welding is automated manual skills are not required.
- There no usage of consumables or shielding gas. Thus the chance of material getting contaminated is reduced.

Welding is referred to joining of two pieces of metal. This can be done by melting iron pieces and add filler material let it cool which make it harder. Welding can be done in air, water and outer space.

Types: Arc, metal inert gas, tungsten inert gas welding.

Arc Welding: It is like welding process using electric arc between two pieces and electrode. The electrode either is a rod or wire. There are five common types of arc welding method. They are shielded metal which is using for metals, gas metal, flux core, gas tungsten and submerged arc welding which is using for steel plate.

Metal Inert Gas: Metal inert gas also called as gas metal arc welding. This process is easiest among all. It is automatic or partially automatic process, where the wires are connected to direct current act as electrode to join the work pieces of metal. It has the ability to combine the non-ferrous metal. Two types of MIG are conventional and pulsed MIG. Conventional MIG uses direct current power and pulsed MIG uses alternative current power.

Tungsten Inert Gas: It is also called as gas tungsten arc welding. Here the types of gas used for welding are argon and helium. The advantages of these two gases are speed and easily perforate. Using TIG welding you make joints like corner, lap, butt and t-joint. Corner joins the two corner pieces of metals. Lap joins the top and bottom piece. T-joint is used to join the parallel piece of metal to perpendicular metal.

In the recent years, welding has gone through drastic changes in electric arc, laser beam, gas flame or electron beam welding. Latest developments are going on in robot welding. Welding is one of the important tools in construction, manufacturing or garage shop. The person who does this job has to take lots of safety steps and follow them wisely and if he fails to do so it can be very hazardous for him and others too.

Today different methods and techniques are carried on in welding process. Most of the equipment that we use in our day to day life or which we come in contact often is mostly welded in some way or either. Welding is a technique to join two or more pieces to make them look into one single piece. Welding process has to be carefully carried on because chances of mishaps are frequent due to carelessness or lack of knowledge in equipment handling or usage or misuse of available equipments. While welding, protect your eyes with the help of goggles and helmets. To protect other parts of your body, wear flame proof coats and gloves.

The process of Welding-titanium and its alloys must be carried with lots of safety measures because these materials are very reactive to contamination from atmosphere gases. The process of welding this material is quite different from other ferrous materials.
Steps to follow:

- Assemble the materials, and clean the material which is needed to be joined. To clean its grit and surfaces of grime you can do it with the help of rag, water and soap. And before buffing for smooth and dry, clean all blemishes and scuffs. By using alcohol swab you can prevent the outside chemicals causing harm to the surfaces.

- Before using argon gas it should be checked whether it is pure or not because small amount of impurity can cause damage to the titanium materials. To check the purity of the argon gas start flowing it before it is set in high frequency. If there are no signs of discoloration after few movements of its flow then it is pure argon gas.

- Now start the welding process with the argon gas flowing in high frequency. If there are any signs of swirled pattern emerging then your argon flow is too high. Reduce the flow level.

- During the entire welding process ensure that there is flow of shielding gas. Do not compromise on color and the integrity of the material.

- Handle the material carefully Use only cotton gloves to handle. Gloves already been used can cause damage to the material.