Abstract:
This research concerns the study of contraction of the CuZn40Pb2 brass in four geometrical shapes
by means of hot forging, i.e., cylinder, square, hexagon and octagon, respectively. The operations
were commenced by first studying factors causing contraction of the material, processes and factors
resulting in forge of the material, including die design, and then, simulating the forge thereof by the
Super Forge Version 2005 software in order to examine and ensure completion of the workpiece as
forged in respect of material filling and accuracy of shape and size of the workpiece as designed
from the model. Thereafter, two real dies sets were made to test the actual forge, namely, the first
die set would be used to form for examining contraction of the material and the second die set
would be used to design by using the coefficient of contraction data of the material as produced
from the first die. Next, measurement ofthe workpiece size was conducted to ensure whether or not
its size is within the contraction data as set. The results of this study have shown that the
contraction ofthe material do not depend on any shapes since its contraction scales are similar.