Study on Development of Simulator for Evaluating the Lubricity of Lubricant in Metalwirking

金属丝加工润滑剂润滑性评价模拟器的研制

• 批准号: 59850026
• 负责人: AZUSHIMA Akira
• 金额: $ 4.99万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1985
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59850026/
• 关键词: Lubricant; Simulator; Coefficient of friction; Friction pick up; Oil film thickness; 界面温度; 実用化

A study was conducted to investigate the lubricant behaviors in metal working. The purpose of the study was to gain a better understanding of evaluation of the lubricity of lubricant. The relationship among methods by means of fundamental testing machine, simulation testing machine and actual machine has been discussed. Consequently, it was found that the lubricity of lubricant should be evaluated by means of the methods which simulated the actual contact conditions in metalworking process and the contact conditions of the tool and the material in the testing machines should coincide with those between them of the actual machine. A new simulation testing machine was developed by the authors and the results obtained by means of this simulator were as follows;1) The eefect of the coefficient of friction and the friction pick up on working conditions were measured by using the newly developed simulating machine. The coefficient of friction decreased with increasing relative speed. The pick up occured when the speed and reduction were higher. The mechanism of pick up in lower speed was the cold welding type and the mechanism in higer speed was the heat adhesion type.2) The inlet oil film thickess was caluculated by Reynolds equation considering thermal effect and the calculated values were in good agreement with the measured.

对金属加工中的润滑剂行为进行了研究。该研究的目的是更好地了解润滑剂润滑性的评价。讨论了基本试验机、模拟试验机和实机试验方法之间的关系。因此，润滑剂的润滑性评价应采用模拟金属加工过程中实际接触条件的方法，试验机上工具与材料的接触条件应与实际机床上工具与材料的接触条件相一致。本文介绍了作者研制的一种新型模拟试验机，并利用该模拟试验机进行了如下试验：（1）用新研制的模拟试验机测定了摩擦系数和摩擦系数随工况变化的规律。摩擦系数随着相对速度的增加而减小。当速度和压下量较高时，出现回升。低速时的吸起机理为冷焊型，高速时为热粘附型。2）采用考虑热效应的雷诺方程对进口油膜厚度进行了计算，计算值与实测值吻合较好。

项目成果

Testu to Hagane. 71-13. (1985)

泰斯图到哈加尼。

鉄と鋼. 71-13. (1985)

钢铁。71-13。

昭60春塑加講論. (1985)

1985 年春季可塑性讲座 (1985)。

鉄と鋼. 70-13. (1984)

钢铁。70-13。

Proc. of 36th Conference in JSTP. (1985)

过程。