Welding industries developed well in the 19th century and in 1907 two welders came to us and patented a metal arc welding method. In 1923 institute of welding engineers was formed in New York City and in 1924 welded steel buildings were constructed (more)
Welding industries developed well in the 19th century and in 1907 two welders came to us and patented a metal arc welding method. In 1923 institute of welding engineers was formed in New York City and in 1924 welded steel buildings were constructed in us. (less)
Slide 1: Welding equipments can avoid welding risk:
Welding is a process that is used to liquefy metals and join them with stuffing material. A great combination of high heat and pressure are generally used in this whole process. It is potentially a dangerous manufacturing procedure. Welding can be executed in various forms because it is one of the important parts of industrial application. There are some different energy sources such as gas flame, friction, electric arc, ultrasound, laser & electric beam being used in welding process. Power supply, shielding gas, electrodes, rods, weld & arcs are some of the basic requirements to complete this particular application. As it is a dangerous process there is high risk involved in it; hence security equipments like defensive mask and helmet are essential. These security gears are the most essential requirements for welders as they are the one who closely engaged in welding activity.
Welding is a complex matter so a complete examination is must then only one can get rid of risky environment. All the persons who are involving themselves in this activity are keep on contacting with an open electric flame, therefore the possibility of getting injured is much higher. This process involves major probability of getting burnt. In order to prevent such a severe injury, a protective gear like durable leather gloves and thick long sleeves fully covered gown is utilized. Electric flame can cause facial injuries and various others eye damages but welders can prevent themselves by using defensive masks, goggles and helmets. All these protective equipments are specially designed by dark or defensive lenses & faceplates. Helmet or goggles can decrease the harmful effects of ultra-violet rays which directly come from sparks & flames. There are many
Slide 2: chances for welders to face toxic gases and these toxic particles or smoke can create breathing problems. There are some easy-to-access operations generally used such as arc welding, TIG & MIG welding and gas welding. In order to make a fusing arc between an electrode and a base material arc process uses a power supply to liquefy the metals at the fusing point. When it comes to shield the welding region, a type of inert or semi-inert gas that is usually known as a stuffing material has to be used. Direct or Alternating current can be used in this application. In case of MIG & TIG application, constant & delicate wire electrodes are passed all the way through a welding gun. Continuous electrical energy and DC power are generally used in this type of joining activity. In the beginning, they were used for fusing aluminums kinds of metals. In case of MIG application, a cable electrode is consumed to create a bond. During the entire process, in order to avert the nitrogen and oxygen in the air from polluting the weld, a defensive gas is required. Source: http://www.everlastgenerators.com/
