Fundamental Study on Metal Cutting and Forming under Dry Condition

干态金属切削成形基础研究

基本信息

  • 批准号:
    13650118
  • 负责人:
  • 金额:
    $ 2.3万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2002
  • 项目状态:
    已结题

项目摘要

1. Dry Metal Forming with Coated ToolsTo realize dry metal forming processes without lubrication, the frictional behavior of some working metals sliding over tool surfaces without lubricant is studied. It is found that DLC is effective to reduce the friction with aluminum under dry condition. The oxide layer formed on the steel surface raises the friction to a great extent. The coefficient of friction is sensitively affected by the roughness of the tool surface irrespective of the coated material.2. Measurement of Friction in Cold Upsetting with Mist LubricationFrictional behavior under semi-dry condition is measured with the ring compression test. Small quantity of mist lubricant is sprayed onto the cemented tungsten carbide (WC) tool surfaces polished to the mirror surfaces, and the pure aluminum specimens are compressed. It is found that spraying small quantity of lubricant (0.5g/m2) is effective to reduce the friction in comparison with the friction without lubrication. The mist lubrication causes very small dots of lubricant particles on the tool surface, and the lubrication mechanism of mist lubricant is discussed.3. Lubrication and Friction of Magnesium Alloys in Warm ForgingIn order to realize precision forging of magnesium alloys, the frictional behavior of ZK60 (Mg-6%Zn-0.5%Zr) is studied. At room temperature, the friction test of ZK60 sliding over the surfaces of cemented carbide tool with and without TiC+TiCN+TiN and DLC (diamond like carbon) coating is carried out. It is found that the DLC coated film is effective to reduce the coefficient of friction and the oxide film of magnesium increases friction. Several liquid lubricants are applied onto the tool surfaces by controlling the film thickness and the effect of lubrication on friction is examined.
1. 为了实现无润滑条件下的干式金属成形,研究了在无润滑条件下加工金属在刀具表面滑动的摩擦行为。在干燥条件下,DLC能有效降低与铝的摩擦。钢表面形成的氧化层在很大程度上增加了摩擦。与涂层材料无关,摩擦系数受刀具表面粗糙度的敏感影响。冷镦薄雾润滑摩擦性能的测量用环压缩试验测量了半干燥条件下的摩擦性能。将少量雾状润滑剂喷在抛光到镜面的硬质合金(WC)工具表面上,并对纯铝试样进行压缩。结果表明,喷施少量润滑剂(0.5g/m2)与不加润滑时相比,能有效降低摩擦。雾状润滑在刀具表面形成非常小的润滑颗粒点,并对雾状润滑剂的润滑机理进行了讨论。为了实现镁合金的精密锻造,对ZK60 (Mg-6%Zn-0.5%Zr)合金的摩擦行为进行了研究。在室温下,进行了ZK60在有TiC+TiCN+TiN和DLC(类金刚石碳)涂层和不含TiC+TiCN+TiN涂层的硬质合金刀具表面滑动的摩擦试验。结果表明,DLC涂层能有效降低摩擦系数,而镁的氧化膜则能增加摩擦系数。通过控制油膜厚度,在刀具表面涂上几种液体润滑剂,考察了润滑对摩擦的影响。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
R. Matsumoto and K. Osakada: "Lubrication and friction of magnesium alloys in warm forging"Annals of the CIRP. 51-1. 223-226 (2002)
R. Matsumoto 和 K. Osakada:“温锻中镁合金的润滑和摩擦”CIRP 年鉴。
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    0
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  • 通讯作者:
松本 良, 小坂田宏造: "ミスト微量潤滑据込み加工における摩擦測定"塑性と加工. 44・508. 572-576 (2003)
Ryo Matsumoto、Kozo Osakata:“雾微润滑镦粗加工中的摩擦测量”《塑性与加工》44・508(2003)。
  • DOI:
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  • 影响因子:
    0
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  • 通讯作者:
R.Matsumoto, K.Osakada: "Lubrication and friction of magnesium alloys in warm forging"Annals of the CIRP. 51・1. 223-226 (2002)
R.Matsumoto、K.Osakada:“温锻中镁合金的润滑和摩擦”CIRP 年鉴 51・1(2002 年)。
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    0
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OSAKADA Kozo其他文献

OSAKADA Kozo的其他文献

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{{ truncateString('OSAKADA Kozo', 18)}}的其他基金

Precision Extrusion Using Tool for Counter Pressure
使用反压工具进行精密挤压
  • 批准号:
    11650126
  • 财政年份:
    1999
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Laser Applied Rapid Prototyping of Metallic and Ceramic Dies
金属和陶瓷模具的激光应用快速原型制造
  • 批准号:
    07555365
  • 财政年份:
    1995
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
A System for Computer Aided Design of Cold Forging Process
冷锻工艺计算机辅助设计系统
  • 批准号:
    01850156
  • 财政年份:
    1989
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research
Forging of Heat Resisting Alloy with Ceramic Dies
陶瓷模具锻造耐热合金
  • 批准号:
    59850029
  • 财政年份:
    1984
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research

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高粱Dry基因调控的下游基因的挖掘和功能分析
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Production of ultra low frictional thin films for cutting tool and development of near dry machining by surface reaction on cutting tool
刀具用超低摩擦薄膜的制备及刀具表面反应近干式加工的发展
  • 批准号:
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通过 FE 模拟优化干切削应用的 PVD ​​涂层
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    2014
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Hybrid Dry Cutting - Finish Burnishing of Novel Biodegradable Magnesium-Calcium Implants for Superior Corrosion Performance
混合干切削 - 新型可生物降解镁钙植入物的精加工抛光,具有卓越的腐蚀性能
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    2010
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Development of super hard Ti-B-C coated tool with high thermal stability for dry cutting.
开发用于干切削的高热稳定性超硬Ti-B-C涂层刀具。
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  • 财政年份:
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Development and structural analyses of hard and wear-resistant thin films for dry-cutting
干切削用硬质耐磨薄膜的研制及结构分析
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    19760509
  • 财政年份:
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Near dry cutting with ultra sonic vibration
超声波振动近干式切削
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  • 财政年份:
    2006
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Tribological approach to the analysis of near dry cutting mechanism
近干切削机理分析的摩擦学方法
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用于切削工具和先进加工应用的新型温度自适应纳米晶干润滑剂加硬相复合涂层
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