Prabhakar Reddy, P.V.R.Ravindra Reddy – Professors
Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-75
Flow forming is an incremental forming process widely used used to reduce
thickness of the tubes. Compared ot machining it improves the strength. It is extensively used
for manufacturing of components used for aerospace and automobile applications. How ever,
the surface finish and the deformations after removal from the mandrel due to residual
stresses are the important concerns of this process. So in the present work experimental
investigations are carried out the relative effect of the most important parameters; stagger
and the feed rate and their combined effect on the surface finish of the tube formed by flow
forming process. Experiments are carried out on SAE 4130 Steel using L4 orthogonal array.
Column effect method is used to find the most influential parameter, plotting method is used
for finding the interaction between the parameters and finally ANOVA is used to ascertain
results obtained by the former methods.