Development of multi-pole magnet fabrication technique for micro-motor using Stereolithography

利用立体光刻技术开发微电机多极磁体制造技术

• 批准号: 13555075
• 负责人: NAKAHARA Hiroyuki
• 金额: $ 0.9万
• 依托单位: Kyushu Institue of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 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
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555075/
• 关键词: Rapid prototyping; Stereolithography; Magnet; Multi-pole magnet; Micro motor; 感光性樹脂; rapid prototyping; stereolithography; magnet; photo-resin

The result obtained from this research is summarized below.(1)Multi-pole magnet production technology based on StereolithographyThe improvement problem in accuracy which is one of the technological tasks of the magnet production by Stereolithography was carried out. Surface measurement technology was developed about the approach aiming at improvement of equipment itself. A setup of the processing conditions based on quality engineering was developed. To the problem of evaluation of design for manufacture, approach which extracts the shape feature from CAD data and evaluates fabricating easiness based on the information was carried out. Moreover, the experimental device for enabling the magnet production experiment based on Stereolithography was developed. To the problem of a molding compound, the basic experiment was carried out about the problem of the rate of a compounding ratio of material, and several information was acquired.(2)Evaluation of the magnet for multi-pole micro motorsA … More s fundamental evaluation of the molding technique of a multi-pole tiny magnet based on Stereolithography, the influence on the withstand load and the residual magnetic flux density to a material mixture rate was investigated. A residual magnetic flux density becomes high so that a magnetic body mixing ratio becomes high, but withstand load becomes low. Moreover, it turned out that addition of a moderate surfactant contributes to improvement in a residual magnetic flux density. Analysis of the selective magnetic orientation of anisotropy magnetism powder and an immobilization technology was carried out. By multi-pole magnet fabrication based on Stereolithography, when making it suitable magnet structure, it was shown that magnetization of a multi-pole magnet can be efficiently performed satisfactory in few magnetization yokes.(3)Evaluation of the micro motor using the multi-pole micro magnet based on StereolithographyIn order to realize the multi-degree-of-freedom stepping motor based on Stereolithography, the globular rotor was devised and analysis about a drive system required for rotation of this rotor was carried out. By carrying out torque analysis based on integral element method, arrangement of a coil required for rotation of a motor and a drive system were found out. Less

从这项研究中获得的结果总结如下。（1）基于光固化快速成形的多极磁体生产技术研究了利用光固化快速成形技术生产磁体的工艺任务之一--提高磁体的精度问题。表面测量技术就是围绕着这一途径而发展起来的，其目的就是为了提高设备本身的性能.根据质量工程学原理，建立了一套工艺条件。针对可制造性设计的评价问题，提出了从CAD数据中提取形状特征，并基于这些信息评价可制造性的方法。此外，还开发了基于光固化快速成形的磁体生产实验装置。针对模塑料的问题，进行了材料配比率问题的基础实验，获得了一些信息。（2）多极微型电机用磁铁的评价 ...更多信息 对基于光固化快速成形的多极微小磁体成型工艺进行了初步评价，研究了材料配比对材料的耐载荷和剩余磁通密度的影响。剩余磁通密度变高，使得磁体混合比变高，但是耐受负载变低。此外，结果表明，添加适度的表面活性剂有助于提高剩余磁通密度。对各向异性磁粉的选择性磁取向进行了分析，并提出了一种固定化技术。通过基于光固化成型的多极磁体制造，当使其具有合适的磁体结构时，表明多极磁体的磁化可以在少数磁化轭中有效地令人满意地进行。（3）基于光固化成型的多极微磁体微电机性能评价为了实现基于光固化成型的多自由度步进电机，设计了球形转子，并对球形转子旋转所需的驱动系统进行了分析。通过基于积分单元法进行转矩分析，找出电动机旋转所需的线圈布置和驱动系统。少

项目成果

楢原弘之, 萩原宜和: "光造形法に基づく複合材料成形に関する研究"第25回ラピッド・プロトタイピングシンポジウム. 5-8 (2003)

Hiroyuki Narahara，Yoshikazu Hagiwara：“基于立体光刻的复合材料成型研究”第25届快速原型研讨会5-8（2003）。

H.Narahara, S.Kawaguchi, H.Suzuki: "Parts Design and Manufactureing Process Support system Based on Stereolithography Manufacturing Knowledge Database"Proc.of The Thirteenth Solid Freeform Fabrication Symposium. 247-254 (2002)

H.Narahara、S.Kawaguchi、H.Suzuki：“基于立体光刻制造知识数据库的零件设计与制造工艺支持系统”第十三届固体自由曲面制造研讨会论文集。

H.Narahara, A.Yoshikawa, H.Suzuki: "a Method for Liquid Surface Unevenness Measurement in Stereolithography"Proc.of 20d International Conference International Conference on Leading Edge Manufacturing in 21st Century. 119-124 (2003)

H.Narahara、A.Yoshikawa、H.Suzuki：“立体光刻中液体表面不均匀性测量的方法”Proc.of 20d 国际会议21世纪前沿制造国际会议。

H.Narahara, S.Kawaguchi, H.suzuki: "Study on Design for Manufacture of Rapid Prototyping System Based on Knowledge Database"Proc.of the 6th International Conference on Mechatronics Technology, Kitakyushu, JAPAN. 346-351 (2002)

H.Narahara、S.Kawaguchi、H.suzuki：“基于知识数据库的快速原型制造系统设计研究”，第六届机电一体化技术国际会议，日本北九州。

H.Narahara, A.Yoshikawa, H.Suzuki: "A Method for Liquid Surface Unevenness Measurement in Stereolithography"Proc.of 2nd International Conference International Conference on Leading Edge Manufacturing in 21st Century, Japan Society of Mechanical Engineers

H.Narahara、A.Yoshikawa、H.Suzuki：“A Method for Liquid Surface UnevennessMeasurement in Stereolithography”Proc.of 2nd International Conference on Cutting Edge Manufacturing in 21st Century，日本机械工程学会