What are the disadvantages of tungsten argon arc welding
Despite the numerous advantages of tungsten argon arc welding, almost all metals can be welded! However, there are two aspects of all things, and he also has shortcomings. Specifically, because of the poor wind resistance, the welding pool with argon gas is used to protect the weld pool during the welding process. If there is a velocity of air exceeding 5mil/h during the welding process, Argon shielded gas will be blown away, which immediately infects the weld area, resulting in porosity of the weld. Tungsten argon arc welding does not usually work outdoors, but erect barriers or use non-combustible materials to make a tent that can effectively address the effects of air flow, and installing a gas lens on the welder has better wind resistance. Thus, there is little need to install shields on the welder to help guide the airflow. The welding efficiency is low. The welding quality of argon arc welding is good, but the welding speed is not satisfactory. Ordinary tungsten argon arc welding or manual wire filling, the speed of this welding process is relatively slow. Automatic tungsten argon arc welding machine was invented to improve welding speed. Welding thickness of small Tungsten argon arc welding is usually more reasonable after welding less than 3mm, more than 12mm generally use other methods for welding. A welder with high operating skills who uses tungsten argon arc welding (TIG) usually takes a long period of practice to achieve a higher level. Compared to the two welding flux is difficult, especially welding ultra-thin plate, there is no three sub is really difficult to be competent. The same current is several times stronger than the electrode arc welding, and the damage to the eye is greater. Argon arc in the welding process will produce ozone, and great harm to the human body. When welding equipment with high frequency arc ignition device, it is possible to shock the human body, especially the argon arc welding machine with high altitude welding operation is strictly prohibited.
