Numerical And Experimental Study Of Producing Flanges On Hollow Parts By Extrusion With A Movable Sleeve

Abstract

The paper presents the numerical and experimental results of a new method for producing flanges on hollow parts. With this new method, the flange is extruded by a movable sleeve. This innovative technique is modelled numerically by the finite element method. The effect of workpiece and finished product geometries on the forming process is investigated and failure modes are identfied. The numerical reults are then verified in experiments. The tests are conducted using a three-slide forging press equipped with a special device. The numerical and experimental results show a good agreement, which proves that the developed method is correct.

Numerical and Experimental Study of Producing Flanges on Hollow Parts by Extrusion with a Movable Sleeve / Badania Teoretyczno-Doświadczalne Procesu Wyciskania Z Zastosowaniem Ruchomej Tulei Kołnierza We Wsadach Drążonych

“…The process for extruding flanges on hollow parts using a movable sleeve [13] is run with the tools shown in Fig. 1.…”

Effect of Tool Kinematics on Tube Flanging by Extrusion with a Moving Sleeve

“…Nevertheless, attempts are made to modify these methods in order to extend their application range or to develop new techniques. In light of the above, it is considered justified to investigate a new process of extrusion with a moving sleeve [21,22]. The objective of this study is to determine the effect of flange diameter, gap height and tool kinematics on the process of tube flanging by extrusion with a moving sleeve.…”

Research of Composite Materials Used in the Construction of Vehicle Bodywork

“…Thanks to this technology, the advantageous arrangement of the fibers in the material is obtained, so that they have high strength properties. In addition to conventional plastic processing methods, for example die forging, new methods of manufacturing parts such as flange molding in hollow products [11,24] are sought. In the production of passenger cars, the bodywork occupies an average of approximately 60% of the production area of the plant.…”