Tribological Phenomenon under Extreme Conditions and Its Application

极端条件下的摩擦学现象及其应用

• 批准号: 04650107
• 负责人: DOHDA Kuniaki
• 金额: $ 1.41万
• 依托单位: Gifu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650107/
• 关键词: Friction coefficient; Ironing deformation; Galvanized steel; Plastic deformation; Lubricant; Additives; Tribology; Friction testing machine; 亜鉛めっき鋼材; トライボロジ; 摩擦; 画像処理; しごき加工; 表面分析; 潤滑油

In this research the extreme condition means higher contact pressure than yield stress of materials. The same conditions are recognized in metal forming processes. By using the ironing-type friction testing machine frictional characreristics of galvanized steel against die steel D2. The following results are gained.(1)Galvanized layr are destroyed during ironing process in GA and GAE steel. Clacks of galvanized layr makes it impossible to maintain a moderate lubrication film on workpiece, therefore in these materials the original frictional characteristics of layr itself are dominant. The effects of ironing reduction and viscosity of lubricants are very small.(2)The galvanized layr of EG are easy to follow the deformation of bulk and will not destroy during ironing, therefore the lubricant has big effect on lubrication condition. The frictional characteristics of galvanized layr of EG are not so good as GA, GAE and EL, but it is possible to reduce frictional stress by using lubricants.(3)Sulfur has an ability of extreme additives to the materials which has Zn as component, on the other hand phosphate additives has an excellent ability to reduce friction for the materials which has Fe component.

在本研究中，极端条件意味着比材料的屈服应力更高的接触压力。在金属成形过程中也存在相同的条件。利用熨烫式摩擦试验机研究了镀锌钢与模具钢D2的摩擦特性。得到如下结果：(1)GA和GAE钢在熨烫过程中镀锌层被破坏。镀锌层的裂纹使其无法在工件上保持适度的润滑膜，因此在这些材料中，镀锌层本身的原始摩擦特性占主导地位。熨烫减量和润滑剂粘度的影响很小。(2)EG的镀锌层很容易跟随体积变形，在熨烫过程中不会破坏，因此润滑剂对润滑条件影响很大。 EG镀锌层的摩擦特性不如GA、GAE和EL，但可以通过使用润滑剂来降低摩擦应力。 (3)硫对含有Zn成分的材料具有极强的添加剂能力，而磷酸盐添加剂对含有Fe成分的材料具有优异的减摩能力。

项目成果

堂田邦明,春山義夫 他3名: "塑性加工における摩擦に及ぼす潤滑油の導入速度と相対すべり速度の影響の分離検討" 日本機械学会論文集(C編).

Kuniaki Doda、Yoshio Haruyama 等 3 人：“塑性加工中润滑油引入速度和相对滑动速度对摩擦的影响的单独研究”，日本机械工程学会会刊（ed.C）。

Kuniaki Dohda et al.: ""Tribo-Characteristic of Galvanized Sheet Steel Evaluated by Strip-Ironing Type Tribometer"" Tran.of NAMRI/SME. Vol.22. (1994)

Kuniaki Dohda 等人：“用带钢熨烫型摩擦试验机评估镀锌钢板的摩擦特性”Tran.of NAMRI/SME。

Kuniaki Dhoda et al.: ""Evaluation of Lubricants by Piercing Method" in Japanese" Trans.of Japan Society of Mechanical Engineering. (1994)

Kuniaki Dhoda 等人：“日语中的“通过穿刺法评估润滑剂””Trans.of 日本机械工程学会。

Kuniaki Dohda, Yoshio Haruyama et al.: ""Effects of Traction Speed and Sliding Speed on Friction in Metal Forming" in Japanese" Trans.of Japan Society of Mechanical Engineering. (1994)

Kuniaki Dohda、Yoshio Haruyama 等：““金属成形中牵引速度和滑动速度对摩擦的影响”，日语”Trans.of 日本机械工程学会。

堂田邦明 他2名: "亜鉛メッキ鋼材のトライボ特性" 塑性と加工.

Kuniaki Doda 和另外 2 人：“镀锌钢的摩擦性能”可塑性和加工。