North University of China

Xi Zhao

Zhimin Zhang

Jianmin Yu

Shuailing Kan

Qiang Wang

Mo Meng

Jian Xu

Pengcheng Gao

Shuchang Li

Yong Xue

Shaobo Cheng

The present disclosure provides a rotary extrusion forming method for a cabin section workpiece, comprising the following steps of: first preparing a hollow truncated cone-shaped blank; heating the prepared blank to a molding temperature and holding, and preheating a female die and a male die to above the molding temperature and holding; assembling an upper die assembly on a press; applying lubricant on the female die and the male die, and placing and fixing the blank into a die cavity of the female die; starting up a rotation driving device to drive the female die to rotate on a lower die base, so that the female die drives the blank to rotate; starting up the press to make the male die move down to a machining position of the blank in the female die cavity through the upper die assembly, and machining inner side walls of the blank.

Rotary extrusion forming method for cabin section workpiece

The present disclosure provides an extrusion forming die for a cabin component. The extrusion forming die for a cabin component comprises an upper die assembly, a lower die assembly and a combined concave die. The upper die assembly comprises an extrusion punch (), and the combined concave die comprises an M-shaped outer concave die () having a hollow cavity matched with the extrusion punch (), and a W-shaped inner concave die () having a rotary cavity. The W-shaped inner concave die () is arranged in the rotary cavity of the M-shaped outer concave die () in a matched manner, and the rotary cavity and the hollow cavity are matched to form a rotary extrusion die cavity () with a W-shaped longitudinal section.

Extrusion forming die for cabin component

Provided is a method of forming a cup-shaped aluminum-magnesium-alloy article by rotary extrusion, including the following steps. (1) Blanking. (2) Performing rotary extrusion: placing a cylindrical billet into a concave die cavity, wherein a peripheral wall of the cavity of the concave die is provided with at least two symmetrical axial grooves; inserting a convex die into the concave die cavity, wherein an end of a working region of the convex die is provided with a groove of a trapezoidal cross section; subjecting the convex die to forward extrusion and heating, and simultaneously rotating and heating the concave die, wherein an integral torque is formed during the extrusion process of the convex die by using the cylindrical billet inside the groove having a trapezoidal cross section, and wherein a synchronized rotation with the concave die is achieved by using a metallic billet that flows into the axial groove. (3) Demolding.

Method of forming a cup shaped aluminum magnesium alloy article by rotary extrusion

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Shanxi, China

Xi Zhao