“Optimization of Surface Roughness in Turning of Hardened AISI D2 Steel”
- April 7, 2018
- Posted by: RSIS
- Category: Mechanical Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue III, March 2018 | ISSN 2321–2705
“Optimization of Surface Roughness in Turning of Hardened AISI D2 Steel”
Prof. Sande A. N.
#Mechanical Department, PVPIT, Bavdhan, SPP University, India
Abstract : Hard turning is a developing technology that offers many potential benefits compared to grinding, which remains the standard finishing process for critical hardened surfaces. To increase the implementation of this technology, questions about the ability of this process to produce surfaces that meet surface finish and integrity requirements must be answered. Additionally, the economics of the process must be justified, which requires a better understanding of tool wear patterns, life predictions, cause and effects of defects, also to formulate effective measures to counter the same.
AISI D2 (high carbon high chromium) is one of the most difficult material to machine because of their high hardness, affinity to react with tool materials. Because of its excellent mechanical properties and high wear resistance, it plays an important role in recent years in blanking, moulding, forming, thread rolling and drawing dies, shear blades, gauges and burnishing rolls. In order to perform the turning operation a ceramic insert tool is used.
Keywords— hard turning, D2, Surface Roughness, AISI
I. INTRODUCTION
Producers of machined components and manufactured goods are continually challenged to reduce cost, improve quality and minimize setup times in order to remain competitive. Frequently the answer is found with new technology solutions. Such is the case with grinding where the traditional operations involve expensive machinery and generally have long manufacturing cycles, costly support equipment, and lengthy setup times. However, the grinding process itself may require several machine tools and several setups to finish all component surfaces. Because grinding can be a slow process with low material-removal rates, there has been a determined search for replacement processes.
The newer solution is a hard turning process, which is best performed with appropriately configured turning centres or lathes. Hard turning really started to develop at the beginning of the nineties. The reason for this was the availability of new tool materials and the capability of designing a turning machine that was rigid, stable and accurate enough to successfully finish hard turn. The result of these developments have made finish hard turning a viable alternative to grinding, as an accurate finishing operation.
