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Original Articles

Fabrication and turning of Al/SiC/B4C hybrid metal matrix composites optimization using desirability analysis

製造車削加工 AL/SIC/B4C 混合金屬複合材料的優化使用分析

N. Muthukrishnan Professor and Head, Department of Automobile Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur – 602 105, Tamil Nadu, India T.S. Mahesh Babu Associate Professor, Department of Aeronautical Engineering, Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai – 600 119, Tamil Nadu, India R. Ramanujam Associate Professor, Department of Mechanical Engineering, School of Mechanical Engineering, Vellore Institute of Technology, Tamil Nadu, India

, &
Pages 515-525 | Received 25 Jan 2012, Accepted 18 Aug 2012, Published online: 05 Oct 2012
 

Abstract

This article presents the detailed discussions on fabrication of aluminum–silicon carbide (10% by weight of particles) and boron carbide (5% by weight of particles) hybrid metal matrix composites (Al/SiC/B4C – MMCs) using stir casting method. The cylindrical rods of diameter 65 mm and length 200 mm are fabricated and subsequently machined using medium duty lathe to study the machinability issues of hybrid MMC using polycrystalline diamond insert of 1600 grade. The optimum machining parameters have been identified by a composite desirability value obtained from desirability function analysis as the performance index, and significant contribution of parameters can then be determined by analysis of variance. Confirmation test is also conducted to validate the test result. Experimental results have shown that machining performance can be improved effectively through this approach. Results show at higher cutting speeds, good surface finish is obtained with faster tool wear. Percentage of error obtained between experimental value and predicted value is within the limit. Using the optimal parameters, tool wear analysis also studied for the duration of 30 min.

本文提出使用攪拌澆鑄法製造鋁 - 碳化矽 (10% 重量的顆粒) 和碳化硼 (5% 重量的顆粒) 混合金屬基複合材料 (Al/SiC/B4C - MMC) 中的詳細的討論。 直徑 65 毫米 , 長度 200 毫米的圓柱形棒的製造和使用中型車床加工研究的切削加工問題的混合 MMC 使用 1600 級的多晶金剛石 (PCD) 插入。 最佳加工參數已確定由一個複合可取的可取性功能分析的性能指標 , 並顯著貢獻的參數值 , 然後可以由方差分析 (ANOVA) 進行1確認試驗來驗證測試結果。 實驗結果表明 , 通過本方法 , 可以有效地改善機械加工性能 , 在更高的切削速度 , 獲得良好的表面光潔度 , 刀具磨損快。 得到的實驗值和預測值之間的誤差的百分比是在限度以內。 通過使用的最佳的參數 , 還研究了在30分鐘的持續時間的刀具磨損分析。

(*聯絡人 : [email protected]

Notes

(*聯絡人 : [email protected]

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