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.
Common causes of ridges on nails. Nails are comprised of Keratin (protein) a tough substance that protects the end of each finger and toe. Malabsorption in the small intestines (Crohns Disease, Coeliac Disease, Giardia, Ulcerative colitis), this is the area of the digestive tract which absorbs nutrition from the food we eat.