Effects of Working Parameters on Performance Characteristics of Cutting Tools Processed through Powder Metallurgy under Turning Operation

Autor: M. Marshal Andru, S. Karthik, T. K. Kandavel, S. Aravinda Sreenivas, T. Panneerselvam
Rok vydání: 2021
Předmět:
Zdroj: Journal of Materials Engineering and Performance. 30:2890-2898
ISSN: 1544-1024
1059-9495
Popis: Product quality and efficiency are critical phenomena for every manufacturing unit to survive the pressure of the present days. This situation demands to develop a new cutting tool for industrial application. Hence, the current work aims to study the performance characteristics of the newly powder metallurgy (P/M) made Fe-1% C-1% W-1% Ti and Fe-1% C-2% W-1% Ti cutting tools under the turning of AISI 1020 low carbon steel and AA 6061 aluminum alloy through powder metallurgy (P/M) route. The working parameters such as cutting speed, feed rate and depth of cut were varied in the experiments as per Taguchi's L9 orthogonal array. With each set of experiments, the surface roughness, tool wear and tooltip temperature were measured as response parameters. The experiments were carried out on two different work materials (hard and soft) under the same cutting conditions. Response tables on means of responses and signal-to-noise ratios of responses were employed to analyze the experimental results and to determine the contribution of process parameters to the output characteristics. The experimental results reveal that cutting speed is ranked one in effecting the tooltip temperature, and feed rate is ranked one for effecting surface roughness. The P/M alloy tool with 2% W has a marginally better performance than a tool with 1% W due to the enhanced hardness of the tool from 65 HRC to 83 HRC by the addition of tungsten, which causes the formation of hard phases such as martensite and carbides in the alloy system.
Databáze: OpenAIRE
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