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IJEMS Vol.14(3) [June 2007] >

Title: A study of barreling profile and effect of aspect ratio on material flow in lateral extrusion of gear-like forms
Authors: Altinbalik, Tahir
Issue Date: Jun-2007
Publisher: CSIR
IPC CodeB21C
Abstract: The aim of this study is to investigate the lateral extrusion of tapered in terms of die filling and barrel formation at the front of tooth. A series of experiments has been carried out using solid lead billets with two different billet diameters and three different billet heights of each diameter. Metal flow in the tooth region is not uniform and barreling occurs due to frictional resistance between the workpiece and the die gap surface. The barrel profile is assumed as a second order polynomial and a simple empirical relationship between the tooth dimensions and the barrel profile has been given using experimental data. Bulging profile of the tooth was measured and simulated by CAD/CAM software. Load-stroke relations and die filling ratios are obtained. In addition, Microsoft Visual Basic was coded and also magnitude and the position of the maximum stresses in the die chamber were determined by using CATIA.
Page(s): 184-192
ISSN: 0971-4588
Source:IJEMS Vol.14(3) [June 2007]

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