The Effect of Strontium Modifier on Machinability Characteristics of Heat Treated A357 Alloy Using Statistical Techniques

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Authors

  • K. Ganesh
     Research Scholar, JNTUA, Ananthapuramu - 515002, Andhra Pradesh ,IN
  • K. Hemachandra Reddy
     Professor, Department of Mechanical Engineering, JNTUA, Anatapuramu - 515002, Andhra Pradesh ,IN
  • S. Sudhakar Babu
     Professor, Department of Mechanical Engineering, Kuppam Engineering College, Kuppam - 517425, Andhra Pradesh ,IN

DOI:

https://doi.org/10.18311/jmmf/2024/44906

Keywords:

Heat Treatment, Machining Force, Milling, Strontium Modified A357 Alloy, Surface Roughness

Abstract

The current study sought to determine the influence of strontium addition on the microstructure and machinability of the A357 alloy. Furthermore, the influence of cutting parameters and aging temperatures on the machining performance of the modified alloy was investigated using a statistical technique. The machinability characteristics were investigated by milling experiments with a carbide tool. Experimental trials were carried out using Taguchi's L27 orthogonal array. Process parameters studied were strontium (Sr) percentage, aging temperature, cutting speed, and feed rate. Cutting force, surface roughness, and tool wear were investigated as responses. The microstructure of the specimens revealed that the addition of Sr to the A357 alloy helped to achieve refined grain structure. Furthermore, increasing the Sr concentration from 4 to 8% resulted in the enhanced refined microstructure. ANOVA analysis of responses revealed that Sr%, aging temperature, and feed rate have a significant effect on all the responses considered. However, cutting speed has exhibited the least influence. Further, the increase in Sr% resulted in an increase in cutting force and tool wear. Whereas, a decrease in surface roughness was observed due to increased Sr%. Whereas the increase of aging temperature, cutting temperature, and feed rate has resulted in the increase of response values. The aging temperature has shown significant influence on the variation of cutting force and surface roughness..

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Published

2024-09-04

How to Cite

Ganesh, K., Reddy, K. H., & Babu, S. S. (2024). The Effect of Strontium Modifier on Machinability Characteristics of Heat Treated A357 Alloy Using Statistical Techniques. Journal of Mines, Metals and Fuels, 72(2), 597–609. https://doi.org/10.18311/jmmf/2024/44906

Issue

Volume 72, Issue 6, June 2024

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Crossref
Scopus
Google Scholar
Europe PMC
Received 2024-07-11
Accepted 2024-08-13
Published 2024-09-04

 

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