[Landge*, 4(5): May, 2015] ISSN: 2277-9655 (I2OR), Publication Impact Factor: 3.785 (ISRA), Impact Factor: 2.114 http: // www.ijesrt.com© International Journal of Engineering Sciences & Research Technology [1] IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY A REVIEW PAPER ON COMPARATIVE INVESTIGATION OF V AND U GROOVE BUTT WELD JOINT FOR STRENGTH ANALYSIS USING TIG WELDING Mr. Nilesh Landge * , Dr. Y. R. Kharde * Department of Mechanical Engineering, Pravara Rural Engineering College, Loni, Tal. Rahata, Dist. Ahmednagar, Maharashtra, 413736, India ABSTRACT Now a days in shipping, aerospace and in process industry aluminum and its alloys are commomly used because of their valuable properties such as light weight, brtter corrosion resistance and weldability. The current study aim to compare mechanical properties of AA6063 and AA2024 for different groove angle and bevel heights keeping root opening, voltage and current constant. The specimens are prepared by using V and U groove butt weld joints. In this work gas tungsten arc welding process has been selected because TIG welding is the process of joining different materials with higth quality in the presence of inert gas. Alternating current power source has been selected because of better cleaning action and due to alternating current the high heat concentration on the material can be avoided. Mechanical tests such as tensile test, impact test, hardness test have been conducted to find out the mechanical properties such as tensile strength, impact strength, toughness of HAZ. KEYWORDS: Groove Angle, TIG Welding, V- Groove Butt Weld Joint, Root Opening, Bevel Height INTRODUCTION Welding is a process of permanent joining of two materials merging with each other by the suitable combination of temperature, pressure and metallurgical conditions. Accordng to the different combination of temperature and pressure a large range of welding processes are avalible. Gas tungsten arc welding is one of the most important arc welding process in industry that uses a non-consumable tungsten electrode and an inert gas for arc shielding. It is commonly used for welding hard to weld metals, like aluminum, stainless steel, magnesium and titanium. Gas tungsten arc weld quality is strongly characterized by the welding speed. This is because the welding speed plays an important role in determining the mechanical properties of the butt weld joint. In current senario, statistical experimental design, linear regression modeling, and neural networks have been used to study the effect of welding process parameters on the butt weld joint strength. It has been shown that the welding process parameters are strongly correlated to the butt weld joint strength. Therefore, it is very important to select the welding process parameters for obtaining optimal butt weld joint strength. LETERATURE REVIEW Different researchers have discussed on effect of various parameters on strength of aluminum alloy in different ways. They are as follows. R.R.Balasubramanian et.al. studied and compared the mechanical properties of non-heat treatable Aluminium alloy AA5083 and heat treatable Aluminium alloy AA7020 using Tungsten Inert Gas welding. 5556A filler were used to weld AA7020 alloy and 5183A filler for AA5083 alloy. Effect of pulsing mode over conventional mode of GTA process were also investigated for AA5083 alloy. In this work, gas tungsten arc welding process has been selected because it is low heat input process. Low heat input process has selected because AA7020 and AA5083 were low melting point material. The alternating current (AC) power source has been selected because of better cleaning action and high heat concentration on the materials can be avoided. Mechanical testing like tensile test, impact test, bend and hardness test have been critically analysed and the properties were summarized and correlating with microstructure and SEM fractographs.