Lubri-cooling and tribological behavior of vegetable oils during milling of AISI 1045 steel focusing on sustainable manufacturing
Lubri-cooling and tribological behavior of vegetable oils during milling of AISI 1045 steel focusing on sustainable manufacturing
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DOI：
10.1016/j.jclepro.2017.04.061
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发表时间：
2017-07
影响因子：
11.1
通讯作者：
Antônio Santos Araújo Junior;W. F. Sales;R. B. Silva;E. S. Costa;Á. R. Machado
中科院分区：
文献类型：
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作者：
Antônio Santos Araújo Junior;W. F. Sales;R. B. Silva;E. S. Costa;Á. R. Machado
这项研究的重点是寻找对人类无毒或对环境无害的切削液，以实现可持续制造。采用最少量润滑剂 (MQL) 技术评估了在 AISI 1045 钢铣削中使用可生物降解的天然植物油作为切削液的技术可行性。研究的食用植物油包括棉籽油、巴巴苏坚果油、菜籽油、向日葵油、玉米油和大豆油。为了进行比较，除了以干燥条件作为基准外，还考虑了商业蔬菜基液体 LB 2000（不可食用），应用相同的 MQL 技术。这些液体首先经过特定测试，以量化其润滑冷却能力以及物理和化学特性。根据每次测试中获得的结果，对流体进行排名。冷却能力最好的两种食用油是棉籽油和菜籽油，这些油被用于研究铣削过程中刀具寿命的测试，使用涂层硬质合金刀具。铣削后，通过扫描电子显微镜对刀具进行分析，以检查磨损机制。棉籽油和菜籽油显示出有希望的结果，特别是考虑到它们对人类无毒且对环境无污染。无论测试的油是什么，粘附或磨损（粘滑现象）是遇到的主要磨损机制。
The focus of this study is the search for cutting fluids that are not toxic to humans or damaging toward the environment, with a view to sustainable manufacturing. The technical viability of the use of biodegradable natural vegetable oils as cutting fluids in the milling of AISI 1045 steel was evaluated applying the minimum quantity of lubricant (MQL) technique. The edible vegetable oils studied were cottonseed, babassu nut, canola, sunflower, corn and soybean. For comparison purposes, the commercial vegetable-based fluid LB 2000 (not edible) was considered, applying the same MQL technique, in addition to the dry condition as a benchmark. The fluids were firstly submitted to specific tests to quantify their lubri-cooling capacity as well as their physical and chemical properties. Based on the results obtained in each test the fluids were ranked. The two edible oils with the best results for cooling ability were cottonseed and canola and these were applied in tests to study the tool life during milling, using coated cemented carbide tools. After milling, the tools were analyzed by scanning electron microscopy to examine the wear mechanisms. Cottonseed and canola oils showed promising results, particularly considering that they are non-toxic towards humans and non-polluting in the environment. Adhesion or attrition (stick-slip phenomenon) was the dominant wear mechanism encountered, regardless of the oil tested.