Compacted graphite iron (CGI) along with lamellar graphite iron and spheroidal graphite iron define the three main classes of cast iron according to morphology.
CGI displays very useful properties for a range of engineering applications with the tensile strength and elastic modulus being considerably higher than grey cast irons (75% and 35% respectively). Continue reading
Monthly Archives: May 2017
Hot Tearing of Aluminum Alloys
Hot tearing occurs primarily in the casting mold and can be attributed to thermally induced tensile stresses which occur as the molten metal cools and begins to contract. There are a number of studies available which investigate the behavior and effects of hot tearing but the prevention of this phenomenon is not so simple. Continue reading
Boron Grain Refinement: Part One
Grain refinement is an established technique which basically reduces the grain size of the material with the direct intention to improve its finished properties or characteristics.
The addition of boron specifically in aluminum castings, which are well known for their poor mechanical properties, can improve these characteristics to expand the potential use of the castings to a multitude of other applications. Continue reading
Expert Furnace System Optimization Process (EFSOP)
In typical EAF systems around 45% of input energy is lost through slag or off gas, the latter representing 70% of the complete loss of input energy. The expert furnace system optimization process attempts to tackle this issue by allowing a real time assessment of the energy lost through off gas and to allow plants to react quickly and therefore keep this loss to a minimum.
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SMF Sheet Metal Forming
Sheet metal forming is one of the most significant manufacturing processes in industry today and is of particular importance in the automotive industry to drive advances in material technology and weight saving. There are numerous forms of SMF including bending, stretch forming, and deep drawing. Continue reading