Evaluating the Machinability of Inconel 718 Using Polar Diagrams

Summary, in English

Abstract in Undetermined
The use of a polar diagram method for describing and evaluating the machinability of
Inconel 718 was explored. Five key parameters of the work material, representing the
mechanical and physical properties, which have the strongest influence on its machinability,
were employed in the diagrams. These five parameters were integrated into a
single polar diagram, used to describe the machinability of Inconel 718. Variations in the
machinability of Inconel 718 products or components of a given type produced in different
batches were analyzed. Industrial experiments were conducted to test the relationship
between the polar diagram of the work material, its carbon content, and the tool wear of
the ceramic cutting tools used in machining it. Work materials of Inconel 718 in which
the polar diagrams of machinability were similar in size and shape exhibited very similar
behavior during the cutting process. The polar diagram method employed appeared to be
useful for selecting suitable cutting data for the machining of new materials.