Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld.he use of any shielding gas containing an oxygen compound, such as carbon dioxide, quickly contaminates the tungsten electrode, making it unsuitable for the TIG process. In 1953, a new process based on GTAW was developed, called plasma arc welding.
Another cause of ridges on fingernails is lack of moisture. If your nails are ridged or cracked, massaging the nails or cuticles with a moisturizing cream or oil can be very beneficial, as can increasing the amount of water you drink.
Home Remedies for Vertical Ridges in Fingernails. 1  Keep your fingernails moisturized : Use beauty oils or nail moisturizers to prevent dryness in the fingernails. 2  Intake of food rich in omega-3 fatty acid is also helpful in dealing with ridges in fingernails. 3  Find out if you have deficiency of Vitamins or you suffer malnutrition.