One of the most popular and typical types of welding in usage today is arc welding. If done properly, welding makes the bonding of two pieces of metal with the same strength as a single solid piece. A welding joint is superior to gluing because through the welding procedure, the metals are actually melted together instead of using the bonding properties of glue to hold them together. In commercial applications, heat treatment is also essential to prevent weld failure at a future date. This business offers on site services:
<p>on site stress relieving post weld heat treatment company</p>
The crucial idea in welding is a heat source is needed in order to fuse the metal together. There are a number of approaches of welding and arc welding is among the most popular. The term arc welding originates from the fact that an electrical arc is produced to produce intense heat. This arc is formed between the metal being worked on and an electrode connected to the arc welder. The electrode rod is moved along the joint and is melted by the electrical arc. The rod has two purposes. One is to assist produce the arc and the other is it makes a filler material as it is melted.
At its heart, arc welding is about producing an electrical circuit. An arc welder needs an electrical source of power that produces either AC or DC. The metal piece you are trying to weld is a part of the electrical circuit by attaching a wire from the arc welder to metal. The other hot wire is connected to an electrode that the welder is holding. An electrical arc is created between the metal work piece and the electrode when the electrode is held near the metal. Now there is a total electrical circuit between the arc welder and the metal. This procedure produces some quite remarkable temperatures. The tip of the arc can reach temperatures in excess of 6500º F. Now there is enough heat to fuse the metal pieces together and create a strong bond. To spark the arc, the electrode should be pushed against the metal and after that pulled away.
Besides creating heat, the arc produces a very brilliant light. This light is dangerous to the welder and those around the welding task site. You need to not look straight into the arc without proper eye protection. The visible light is not the only danger. The arc provides of infrared and ultraviolet light that is unnoticeable to the naked eye. This is why welders use auto darkening welding helmets. These helmets will automatically darken when the arc is struck to shield the welders eyes from the intense noticeable and the lens filter is designed to keep out ultraviolet and infrared light at all times whether the lens is darkened or not. Welders likewise install welding blankets or shields to protect other people in the workspace that may not have appropriate eye protection.
Despite these dangers arc welding is a safe and trustworthy method for fusing metal together and with some practice anyone can become skilled enough for standard welding.
Final Words
One of the most typical and popular types of welding in use today is arc welding. There are a number of approaches of welding and arc welding is one of the most popular. The term arc welding comes from the fact that an electrical arc is developed to produce extreme heat. At its heart, arc welding is about creating an electrical circuit. An electrical arc is created between the metal work piece and the electrode when the electrode is held close to the metal.