Bradley Stryker

An introduction to friction stir welding By Jeff Defalco, Contributing Writer September 15, 2009 A relatively new joining process, friction stir welding (FSW) produces no fumes; uses no filler material; and can join aluminum alloys, copper, magnesium, zinc, steels, and titanium. FSW sometimes produces a weld that is stronger than the base material. Friction stir welding (FSW) is a relatively new joining process that has been used for high production since 1996. Because melting does...Read Full Story

PhD studentship: Origine and nature of metastable intermetallic compounds produced by thermomechanical joining processes of metals Job description: Friction stir welding (FSW) is currently a growing process of solid-state joining. Under development since a decade, its main advantage lies in the absence of intrinsic defects unavoidable in usual liquid-state joining processes. However, the [...]Read Full Story

Taisei Plas Co., Ltd (Tokyo, JP) inventors Masanori Naritomi and Naoki Andoh    developed a patent pending method to manufacture lightweight and strong composites of a magnesium alloy and carbon fiber reinforced plastics (CFRP), by strongly bonding the magnesium alloy and the CFRP using an epoxy adhesive. The magnesium alloy has specific ultra-fine irregularities is compatible with an epoxy resin adhesive and exhibits thus strong adhesion.  The manufacturing processes are detailed in U.S...Read Full Story

A novel two-phase alloy of composition Fe- 20Ni-35Mn-15Al (all compositions in atomic percent) was produced by arc melting. Disk samples of 3 mm diameter were electro-polished in a mixture of 20% nitric acid, 10% butoxyethanol, and 70% methanol by volume at 253K (–20°C, –4°F). The resulting thin foils were examined in a Technai F20 field emission gun TEM operated at 200 kV. Selected area diffraction showed that the phases present were B2 (ordered body centered cubic) and face-centered cubic...Read Full Story

T he aerospace industry, which is largely responsible for development of advanced alloys that benefit a range of other industries. More than any other group, aircraft manufacturers rely on the steady improvement of materials and fabrication methods for increased efficiency, higher speeds, and greater reliability and durability. Because of the efforts put forth by a multitude of engineers and scientists, aerospace has become one of the few success stories in American manufacturing. It is a...Read Full Story