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首页> 外文期刊>Journal of the Brazilian Society of Mechanical Sciences and Engineering >Studies on the cooling minimum quantity and conventional cooling at hardened steels in grinding process
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Studies on the cooling minimum quantity and conventional cooling at hardened steels in grinding process

机译：研磨过程中淬硬钢的最小冷却量和常规冷却的研究

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The purpose of this work is to explain the concept of cutting fluids reasonable usage through the fluid minimum quantity in grinding processes. On that purpose, the development of a new nozzle and an own and adequate methodology should be required in order to obtain good results and compare them to the conventional methods. The analysis of the grinding wheel/cutting fluid performance was accomplished from the following input parameters: flow rate variation by nozzle diameter changes (three diameters values: 3mm, 4mm and 5mm), besides the conventional round nozzle already within the machine. Integral oil and a synthetic emulsion were used as cutting fluids and a conventional grinding wheel was employed. The workpieces were made of steel VC 131, tempered and quenched with 60HRc. Thus, as the flow rate and the nozzle diameter changes, keeping steady fluid jet velocity (equal to cutting velocity), attempted to find the best machining conditions, with the purpose to obtain a decrease on the cutting fluid volume, taking into consideration the analysis of the process output variables such as cutting strength, cutting specific energy, grinding wheel wear and surface roughness. It was verified that the 3mm diameter optimized nozzle and the integral oil, in general, was the best combination among all proposed.
机译：这项工作的目的是解释通过磨削过程中的最小流体量来合理使用切削液的概念。出于这个目的，应该需要开发新的喷嘴以及自己和适当的方法，以便获得良好的结果并将其与常规方法进行比较。砂轮/切削液性能的分析是通过以下输入参数完成的：喷嘴直径变化引起的流量变化（三个直径值：3mm，4mm和5mm），以及机器内已有的常规圆形喷嘴。整体油和合成乳液用作切削液，并使用常规砂轮。工件由VC 131钢制成，并经60HRc淬火和淬火。因此，随着流量和喷嘴直径的变化，保持稳定的流体射流速度（等于切削速度），试图找到最佳的加工条件，目的是通过考虑分析来减少切削液的体积过程输出变量，例如切削强度，切削比能量，砂轮磨损和表面粗糙度。经验证，总体而言，3mm直径优化喷嘴和整体油是所有建议中的最佳组合。

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