Development Of Fusion Welding Techniques For Two Inch Thick Titanium Plates Grade Rs70 Commercially Pure

Testing was completed on the first 2 experimental weldments of 2-in.-thick, commercially pure Ti plate. The 3rd, 4th, and 5th sets of the 2-x 4x 24-in. plates, which were machined to a number of variations of a modified double-V joint design, were welded, radiographed, sectioned, and tested. An optimum modified double-V joint design was decided upon for the machining and welding of the 2-x 15-x 30-in. plates into a 2-x 30-x 30-in. weldment. The best welding techniques developed during the welding of the first 5 experimental weldments were used. The X-ray radiograph of the weldment showed it to be free from porosity, cracks, and other defects capable of detection by this means of non-destructive inspection. (Author).