AN EXPERIMENTAL STUDY OF CUTTING PARAMETERS ON CONCENTRICITY IN CNC TURNING OPERATION USING DESIGN OF EXPERIMENT

Abstract

A major channel of machined components is produced by CNC and VMC machines. These machines
have got specific capability to produce components meeting both the dimensional and geometric requirements.
These requirements are to be met within order to meet the functional requirements by each component as a part of an
assembly. This work is an effort in this direction especially in the content of Location control. Here concentricity is taken
as response to be study as geometry of part. Greater attention is given to the geometry in addition to the
dimensional accuracy and surface characteristics of products by industries these days. In order to produce parts
which are more functional and ensure ease of assembly. In this work design of experiment is carried out to
investigate the effect of Machining parameters on concentricity. How this concentricity behaves under the
different combination of machining parameters is the objective of this work. Experimental work carried out on
mild steel (AISI 1020) work piece on CNC turning center. Turning Operation was performed on mild steel round
bar. AISI 1020 steel can be largely utilized in all industrial sectors in order to enhance weldability or
machinability properties. It is used in a variety of applications due to its cold drawn or turned and polish ed
finish property. The current status and demands is that the specific requirements of geometrical and dimensional
relation need to ensure for better functioning of part while assembling. The economic and efficient manufacturing is also
required apart from creating product which satisfies the customer more.