Expanding the applicability of ASTM D3233A Pin & Vee Block method to evaluate lubricant emulsions for cutting applications

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS

Tribology - Materials, Surfaces & Interfaces Pub Date : 2023-01-02 DOI:10.1080/17515831.2023.2179721

E. Georgiou, D. Drees, K. Helmetag, T. Van der Donck, L. M. Lopes, F. Semal, M. De Bilde, M. Anderson

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Abstract

ABSTRACT ASTM Method D3233A uses a Pin&Vee Block tester to evaluate cutting fluids. However, the standard defines a steel-steel contact, uses a small volume of lubricant, and the test report is limited to the ‘ultimate failure load’. With our approach, we bring testing closer to reality, using different metallurgies and testing the oils in aqueous emulsion-form. We monitor the frictional torque throughout increasing load, so that differences between products are revealed that are not visible in failure load alone. By modifying lubrication to recirculated or misted conditions, we simulate cutting of forming operations. Consequently, this provides an additional tool for cost efficient ranking of cutting fluids, based on an industry-accepted instrument. We demonstrate same ranking of cutting fluids as well established Tapping Torque Tests, with the advantage of using a simplified and lower cost configuration. Developing a standardized test protocol involves more work on reproducibility and correlation to real machining processes. GRAPHICAL ABSTRACT

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扩展ASTM D3233A Pin & Vee Block方法的适用性，以评估切割应用的润滑剂乳液

ASTM方法D3233A使用pin & v型块测试仪来评估切削液。然而，该标准定义了钢-钢接触，使用少量润滑剂，测试报告仅限于“最终失效载荷”。通过我们的方法，我们使测试更接近现实，使用不同的冶金和测试水乳化形式的油。我们在整个增加负载的过程中监测摩擦扭矩，以便揭示产品之间的差异，而这些差异仅在失效负载中是不可见的。通过修改润滑到再循环或雾化条件，我们模拟成形操作的切割。因此，基于行业认可的仪器，这为切削液的经济高效排序提供了额外的工具。我们展示了与完善的攻丝扭矩测试相同的切削液等级，其优势是使用了简化且成本更低的配置。制定标准化的测试协议涉及到更多的再现性和与实际加工过程的相关性方面的工作。图形抽象

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来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

CiteScore

2.80

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0.00%

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