A Study on single V-Butt Weld Joint with Constructional Modifications in Weld Edge
Shabir Ahmad Lone
Department of Mechanical Engineering, National Institute of Technology, Srinagar , IN
Summera Banday
Department of Mechanical Engineering, National Institute of Technology, Srinagar , IN
Keywords: Welding, V-Butt, weld joint, tensile strength.
Abstract
The objective of this paper is to introduce the novel idea of reinforcement of a single V-Butt welded joint by drilling holes at beveled faces of varying diameter and varying number. The number of holes have been varied from one to four and diameter have been varied from 3mm to 4.5mm at a pitch of 7.5mm, 6mm deep on the 12mm thick mild steel plates and then welding by gas metal arc welding at a suitable speed so that these holes are filled with weld metal. Tensile tests of weld specimens were performed on computer interfaced servo-hydraulics universal test machine. Enhancement in strength has been observed in all the cases. It has been found that the strength of weld joint can get enhanced up to 25% more by drilling a series of holes of varying diameter. It has been experimentally verified that the plates 12mm thick with drilled holes of diameter greater than 3.5mm did not reveal sufficient increase in tensile strength.
How to Cite
References
NA