This research paper deals with the characterization of friction stir welded dissimilar Aluminium alloys AA 5052 and AA6061. The coupons of above metals were friction - stir welded using cylindrical pin tool using at constant speed of 710 rpm and at two different feed rates of 28 and 20 mm/min. Macrographs showed proper mixing due to effective stirring of cylindrical tool pin while keeping the lower feed rate. Further, extensive micro structural examination showed variation of grain size in each zone and their influence on mechanical properties. Tensile test and hardness measurements were done as a part of mechanical characterization. Correlating mechanical and metallurgical properties it is deduced that the sample welded at lower feed rate performed better in terms of ductility. © 2013 The Authors. Published by Elsevier Ltd.

Raj Kumar V

VIT Business School

Vellore Campus

Arivazhagan N

Department of Manufacturing Engineering

School of Mechanical Engineering

Devendranath Ramkumar K

VenkateshKannan M

Sadeesh P

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Procedia Engineering

This review article summarizes the extensive research works carried out on ferrous alloys and critically examine several aspects of FSW in these materials. Particularly suitable tool materials, tool geometry, effect of tool geometry in metallurgical and mechanical properties of weldment were being discussed. Ever since The Welding Institute (TWI) developed the Friction Stir Welding (FSW) process, extensive studies were being carried out by joining different materials in various laboratory. Initially FSW process was developed for aluminium alloys slowly the technique is adopted for other softer materials such as magnesium, lead and zinc. Later, improvement in tool material lead to use of the eco-friendly welding process (FSW) to other hard materials such as copper, brass, stainless steel, hardened steel and superalloys. Even though several studies shows the capacity of FSW process to join hard materials, the process creates high stress and temperature at the stir zone (approximately 1300°C) which endorses fast tool degradation is the major concern during the process. High tool cost due to fast tool degradation, makes commercial application of FSW on hard metal as challenging. Introduction of polycrystalline cubic boron nitride (PCBN) and tungsten alloys tool materials made FSW possible on stainless steel, hardened steel and superalloys with outstanding results in terms of weld strength and microstructural properties. © 2017 Elsevier Ltd.

Materials Today: Proceedings

Review on friction stir welding of steels

Journal of Testing and Evaluation

Stress Concentration Factors for ASTM E8/E8M-16a Standard Round Specimens for Tension Testing

Friction Stir Welding

Friction Stir Welding Process

Materials & Design

Friction stir welding of dissimilar aluminum alloys AA2219 to AA5083 – Optimization of process parameters using Taguchi technique

The present investigation presents a composite picture of the microstructural developments in a friction stir welded (FSW) AA5052. Optimized, defect free and chemically homogeneous, FS weld was generalized in four regions - base material (BM), nugget, advancing side (AS) and retreating side (RS), using standard nomenclatures. Each region had its signature of microstructural features. AS had clear indications of shear and of grain fragmentation. The nugget region, on the other hand, had nearly equiaxed grains, with strong in-grain misorientation and presence of grain-interior dislocation structure ruling out contributions from static recrystallization. Equiaxed grains of the nugget region had typical onion ring structure - each ring did approximately correspond to one dominant family of orientation. Microstructural developments, as obtained from relative grain refinement, in-grain misorientation development, relative banding, etc., were most significant in nugget followed by AS and then by RS. Heterogeneous plastic deformation and thermal activation through localized heating/friction were the apparent causes. Most of the friction stir welded specimen fractured away from the nugget and showed ductile mode of failure. © 2010 Elsevier Ltd.

Materials and Design

Microstructure and microtextural studies of friction stir welded aluminium alloy 5052

Materials & Design (1980-2015)

Investigations on forming of aluminum 5052 and 6061 sheet alloys at warm temperatures

Studies on Effect of Tool Design and Welding Parameters on the Friction Stir Welding of Dissimilar Aluminium Alloys AA 5052 – AA 6061

Journal	Data powered by TypesetProcedia Engineering
Publisher	Data powered by TypesetElsevier BV
ISSN	1877-7058
Open Access	No