TWI Digital Library

Corner "Friction Stir Welding" technology is beneficial for T-joints in a variety of products, including aluminum aircraft. Although a stationary shoulder device and Corner Stationary Shoulder FSW (CSS-FSW) are promising technology to realize T-join…

Dissimilar butt joints were fabricated between two aluminium alloys, 2017A-T451 (Al, 4.14%Cu, 0.72%Mg) and AlSi9Mg (Al, 8.6%Si, 0.31%Mg), by friction stir welding (FSW) using a dual-speed tool and their microstructure and mechanical properties were …

The linear friction welding of carbon steel using low frequency and low amplitude so as to weld below the A1 transformation temperature and so avoid martensitic transformation was investigated. The end faces of JIS-S45C carbon steel (0.48%C, 0.77%Mn…

Friction stir welding experiments were undertaken on rolled plates (thickness 25.4 mm) of AA 6061-T6 aluminium alloys to investigate the role of backing plate material on thermal gradient changes in the through-thickness direction. Welding was perfo…

A friction bit joining (FBJ) process was developed to facilitate spot joining of dissimilar metals and the microstructure and mechanical properties of the welded joints were investigated. The material system considered comprised sheet specimens (thi…

Synchrotron x-ray diffraction measurements were used to obtain residual stress state data for welded joints made by friction stir welding (FSW) in AA-5083-H321 aluminium alloys as a function of process parameters (rotational speed and feed rate). Bu…

With regard to the development of spin-formed domes for aerospace cryogenic fuel storage tanks, an investigation is presented into a friction stir welding (FSW) process for AA 2219 and AA 2195 aluminium alloys and the influence of FSW tool and proce…

An investigation was undertaken into the wear mechanism and dominant material factors in relation to friction stir welding (FSW) tools made from precipitation strengthened, cobalt based alloys during FSW of Ti, 6%Al, 4%V alloys. Various gamma-gamma'…

Magnesium alloy AZ31H-H24 sheet of 3.175 mm in thickness was friction stir welded (FSW) using an H-13 tool having a shoulder of 20 mm diameter and a slightly tapered pin (4.5-5.5 mm diameter). Welds were made at 1000-2000 rpm and 20-300 mm/minute. T…

A coupled numerical and experimental investigation was undertaken to examine residual stress fields and thermal distortion in lap joints made from AA 5754-H22 alloy sheets (thickness 1 mm) by friction stir welding in order to examine the influence o…

Friction stir welding trials, comprising double-sided butt welding of plates of thickness 10-11 mm, were conducted to investigate the weldability of copper and its alloys and to determine the correct process parameters (welding and rotation speeds) …

The effects of friction stir welding (FSW) on the corrosion resistance of aluminium alloys 2014A and 7075, both welded in the peak aged T651 condition, were studied. The effects of postweld heat treatment (retrogression and reageing treatment) were …

A techno-economic assessment study was undertaken with respect to the feasibility of the friction stir welding (FSW) technique for microalloyed DH36 grade shipbuilding steel (0.11%C, 1.48%Mn, 0.02%Nb, 0.02%Al) plates (thickness 6 mm). Single sided f…

The optimal conditions for the friction stir welding of high-N-containing austenitic stainless steel were evaluated. The influence of heat input (welding speed (50-400 mm/min)) on the surface appearance, macrostructure, microstructure, hardness, yie…

A comparative investigation was undertaken of MIG and friction stir welding of AW 6082-T6 alloys (Al, 0.63%Mg, 0.84%Si, 0.71%Mn) for marine applications such as structural panels in pontoons, and the welded joint microstructure and mechanical proper…

FSSW has been performed in two different automotive 1.5 mm-thick aluminium alloys– AA5754-H22 and AA6082-T6 in similar and dissimilar combination using different joining parameters (e.g. plunge rate, rotational speed and dwell time). Plunge depth ha…

WC, 12%Co cemented carbide layers were deposited onto M2 tool steel (0.8-0.88%C, 3.8-4.5%Cr, 4.7-5.2%Mo, 5.9-6.7%W, 1.7-2.1%V) substrates by HVOF spraying and the effect of subsequent friction stir processing (FSP) on bonding strength and cermet coa…

A new aluminium-bodied, mid-engined AUDI sports car is the first serial application for friction stir welded tailored blanks worldwide. 6th International Symposium, 10-13 Oct 2006, Session 9B: Modelling II, Paper 03

Friction stir spot welding experiments were conducted in a cross-tension configuration on automotive grade A 6002-T4 sheets (thickness 1 mm) and the effect of pin and shoulder geometry on welded joint static strength was investigated. The welding pa…

Dissimilar joints between AA 6060-T5 aluminium alloy plates (thickness 6 mm) and Ti-6Al-4V titanium alloy sheets (thickness 2.5 mm) were fabricated by friction stir lap welding (FSLW) and the influence of interface microstructures on the value of ma…