Scholarlink

<p>The machinability of High-Density Polyethylene (HDPE) reinforced with zirconia (ZrO<sub>2</sub>)-coated MWCNTs via Abresive Waterjet Machining (AWJM) was investigated in this study. The composite was fabricated with 3 wt% ZrO<sub>2</sub>-MWCNTs to enhance mechanical and thermal properties. A Taguchi L<sub>9</sub> orthogonal array was employed to evaluate the effects of waterjet pressure, traverse speed, and stand-off distance on surface roughness (Ra), kerf taper (KT), and material removal rate (MRR). Grey Relational Analysis (GRA) was applied for multi-objective optimization, integrating the individual responses into a single Grey Relational Grade (GRG). Results indicated that lower traverse speed (100&#xa0;mm/min) minimized R<sub>a</sub> (4.286&#xa0;μm), while higher pressure (200&#xa0;MPa) and intermediate speed (150&#xa0;mm/min) reduced kerf taper (0.04727 radians). The optimal parameter combination yielded the highest GRG (0.7361), balancing superior surface finish, dimensional accuracy, and machining efficiency. This study provides critical insights into precision AWJM of polymer nanocomposites for high-performance engineering applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Multi objective optimization of AWJM parameters for ZrO2 coated MWCNTs reinforced HDPE nanocomposites using Taguchi Grey relational analysis

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月29日

查看全文
  • K. Suhas,
  • B. R. N. Murthy,
  • Anupama Hiremath,
  • Pavan Hiremath

摘要

The machinability of High-Density Polyethylene (HDPE) reinforced with zirconia (ZrO2)-coated MWCNTs via Abresive Waterjet Machining (AWJM) was investigated in this study. The composite was fabricated with 3 wt% ZrO2-MWCNTs to enhance mechanical and thermal properties. A Taguchi L9 orthogonal array was employed to evaluate the effects of waterjet pressure, traverse speed, and stand-off distance on surface roughness (Ra), kerf taper (KT), and material removal rate (MRR). Grey Relational Analysis (GRA) was applied for multi-objective optimization, integrating the individual responses into a single Grey Relational Grade (GRG). Results indicated that lower traverse speed (100 mm/min) minimized Ra (4.286 μm), while higher pressure (200 MPa) and intermediate speed (150 mm/min) reduced kerf taper (0.04727 radians). The optimal parameter combination yielded the highest GRG (0.7361), balancing superior surface finish, dimensional accuracy, and machining efficiency. This study provides critical insights into precision AWJM of polymer nanocomposites for high-performance engineering applications.