Study of the effects of die geometry on deformation in the radial forging process

Prediction of neutral plane and effects of the process parameters in radial forging using an upper bound solution

“…(3) the wall thickness of the tube remains constant throughout the sinking zone; (4) the strain rate is homogenous in each element; (5) there are no front-pull and back-push forces; (6) neutral plane is located in the forging zone.…”

“…Ghaei et al [5] also used slab method analysis to study the effects of circular die shapes on deformation in the radial forging process. Using a modular upper bound technique, Subramanian et al [6] modeled the metal flow in die cavity in radial forging for rifling of gun barrels under plane strain condition.…”

Slave rotation analysis of miniature inner grooved copper tube through rotary swaging process

“…The development of radial forging has been well reviewed by Chen et al [9], and the development of rotary swaging has been well reviewed by Lim et al [10]. Generally, the two methods were used for tube production with an internal mandrel [11]. Latterly, they were also accepted for tubular product fabrication without the assistant mandrel while the tube with smooth inner surface was processed [12].…”

A new analytical solution for prediction of forward tension in the drawing process

“…It consists of reducing (Ghaei et al, 2005;Avitzur, 1987) or changing the shape of the cross-section, or a combination of both (Kim et al, 1999), whereby the material is run through a die that defines its final shape. The main variables involved in this process comprise the die angle˛, the cross-section A, the friction coefficient , the area reduction r, and the yield tension x (see Fig.…”