Scholarlink

<p>Copaiba vegetable oil, extracted from the Amazonian Copaiba tree, shows potential as a cutting fluid in micromachining operations due to its mechanical properties. However, limited literature exists on vegetable oils in micromilling, particularly for AISI H13 tool steel. This study uniquely investigates the machinability of AISI H13 in micromilling using pure Copaiba vegetable oil applied via minimum quantity lubrication (MQL). The influence of feed rate (2&#xa0;µm/tooth, 4&#xa0;µm/tooth, and 6&#xa0;µm/tooth) on microtool wear, surface roughness, and burr size was evaluated. Notably, this research introduces the analysis of both the amplitude roughness parameter Ra and the hybrid roughness parameter Rdq, providing a more comprehensive surface characterization. Additionally, measurement uncertainty calculations for these roughness parameters were conducted, a novel approach in micromilling studies of AISI H13. The findings revealed that adhesion or attrition were the primary wear mechanisms. Interestingly, feed rate showed no significant impact on Ra, which consistently decreased with machining length. In contrast, at higher feed rates, Rdq increased with machining length, aligning with surface observations. Experiments at 6&#xa0;µm/tooth feed rate resulted in minimal burr formation, with burr areas reduced by 83% and 73% on down-milling and up-milling sides, respectively, compared to 2&#xa0;µm/tooth. This study provides valuable insights into the application of Copaiba oil in micromilling AISI H13, contributing to sustainable manufacturing practices and enhancing understanding of surface integrity in micromachining processes.</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

Pure copaiba vegetable oil-assisted micromilling of AISI H13 tool steel towards improved surface integrity

  • 期刊论文

  • 发表日期：

    2025年3月27日

查看全文
  • Josenilton dos Santos Lopes,
  • Tamires Isabela Mesquita Botelho,
  • Rahul Davis,
  • Mayara Fernanda Pereira,
  • Marcio Bacci da Silva

摘要

Copaiba vegetable oil, extracted from the Amazonian Copaiba tree, shows potential as a cutting fluid in micromachining operations due to its mechanical properties. However, limited literature exists on vegetable oils in micromilling, particularly for AISI H13 tool steel. This study uniquely investigates the machinability of AISI H13 in micromilling using pure Copaiba vegetable oil applied via minimum quantity lubrication (MQL). The influence of feed rate (2 µm/tooth, 4 µm/tooth, and 6 µm/tooth) on microtool wear, surface roughness, and burr size was evaluated. Notably, this research introduces the analysis of both the amplitude roughness parameter Ra and the hybrid roughness parameter Rdq, providing a more comprehensive surface characterization. Additionally, measurement uncertainty calculations for these roughness parameters were conducted, a novel approach in micromilling studies of AISI H13. The findings revealed that adhesion or attrition were the primary wear mechanisms. Interestingly, feed rate showed no significant impact on Ra, which consistently decreased with machining length. In contrast, at higher feed rates, Rdq increased with machining length, aligning with surface observations. Experiments at 6 µm/tooth feed rate resulted in minimal burr formation, with burr areas reduced by 83% and 73% on down-milling and up-milling sides, respectively, compared to 2 µm/tooth. This study provides valuable insights into the application of Copaiba oil in micromilling AISI H13, contributing to sustainable manufacturing practices and enhancing understanding of surface integrity in micromachining processes.