Pressure-assisted single-point incremental forming (PA-SPIF) is one of the emerging techniques for sheet metals that have been subject rigorous research over past two decades. Understanding its mechanisms and capabilities growing as a result. Open gaps are still present in material constitutive modelling accurate numerical predictions finite-element simulations characteristics localised deforma...

The automotive industry has increased significantly the use of advanced high strength steels (AHSS) in many structural components, with the aim to reduce weight and also to increase safety. The high resistance of these steels is accompanied by a decrease in formability, which makes simulation a requirement to adequately foresee the formability of a particular stretch formed component. This work...

Advanced composite materials are attractive in situations where high performance materials are required, such as in aerospace, military, medical applications and sporting goods industries. However, because they are difficult to shape into complex geometries, currently, most composite parts are manufactured by the hand lay-up process, which is time-consuming and labor-intensive. The main motivat...

Applying ultrasonic vibration in sheet metal forming can change its mechanism and improve formability. The uniaxial tensile bulging limit experimental setups were designed to study the relationship induced by excitation, results under different conditions analyzed. It was found that has effects on left right sides of diagram (FLD). Under same frequency, maximum increment major strain is about 9...