Turning operation is one of the most used operations at various industries and obtaining desired machined surface quality is one of the important concerns of researchers. In this investigation the effects of using copper oxide nano-fluid as compared with conventional fluid (soluble oil) as coolant and lubricant on surface integrity of machined surface of heat treated cold work tool steel (AISI O1) as workpiece has been investigated. So cutting speed and tool’s feed rate have been considered as input variables and surface roughness, created white layer thickness and density of generated surface cracks have been considered as output parameters and regarding full factorial method of design of experiments a set of experiments for each kind of coolants has been designed and performed. The results have been shown that adding copper oxide nano particles as equal as 1% in volume to deionized water as base fluid decreases the amount of machined surface roughness as compared with using soluble oil. Also using the prepared copper oxide nano-fluid decreases the amount of created white layer thickness and density of generated surface cracks on machined surfaces as compared with soluble oil.

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纳米氧化铜对AISI O1钢车削表面完整性影响的实验研究

车削加工是各个行业中最常用的操作之一，获得所需的机加工表面质量是研究人员的重要考虑之一。在这项研究中，研究了使用氧化铜纳米流体与常规流体（可溶性油）作为冷却剂和润滑剂相比，对作为工件的热处理冷作工具钢（AISI O1）的机械加工表面的表面完整性的影响。因此，将切削速度和刀具的进给速度视为输入变量和表面粗糙度，将产生的白层厚度和产生的表面裂纹的密度视为输出参数，并且对于全因子设计的实验方法，每种类型的实验已经设计并执行了冷却液。结果表明，与使用可溶性油相比，将作为基础流体的等体积的氧化铜纳米颗粒添加到去离子水中作为基础流体，减少了机械加工的表面粗糙度。与可溶性油相比，还使用所制备的氧化铜纳米流体减少了产生的白层厚度的量以及在机加工表面上产生的表面裂纹的密度。