STUDY ON FLEXIBLE LAPPING AND GRAINDING TOOLS FOR MIRROR SURFACE FINISHING

镜面精加工柔性研磨刀具的研究

• 批准号: 05650107
• 负责人: MORITA Noboru
• 金额: $ 1.6万
• 依托单位: CHIBA 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: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650107/
• 关键词: Anodic spark deposition; Lapping; Grinding; Abresive grains; Monocrystalline silicon; Ceramics; Surface integrity; Aluminium substrate

Anodic spark deposition (ASD) is a relatively new method of forming a ceramic coating film by means of a spark. The ceramic is deposited on the positive electrode in an electrolytic bath, which comprises an aqueous solution and dispersing ceramic fine particles applied as fine abrasive grains. According to this method, various deposition layrs composed of fine abrasives and anodic compounds can be successfully formed on a substrate without a bonding agent.The prepared fine abrasive layrs have a high potentiality of lapping and grinding tools because they have such advantages as good adhesion to the substrate and comparatively porous structure, which plays an important role of chip pockets. However, the substrates to be deposited on are limited to metal, in particular, Al, Mg, Ti and the like because the initial reaction of ASD process closely resembles that of an anodizing process to form alumite coating.In this study, the manufacture of new abrasive tools applying ASD and the applicat … More ion of them to the lapping and grinding process were investigated. The aluminum foil and wire were examined for substrate metal because ASD process was independent of the shape of substrate to be used and aluminum alloy was best metal for good adhesion and quite useful for the application.The authors have found that ASD process causes fine abrasives rigidly fix in the deposited layr because of the formation of alumite in the same layr. The abrasive sheets were used to estimate the lapping ability of the glass material. It was found that the material removal depth depends on the kind of abrasives and the contact pressure of the wheel, and that the lapping ratio also depends on the contact pressure. The good surface integrity were accomplished under the optimum lapping condition. The authors concluded that the newly developed abrasive tools applying anodic spark discharge deposition had sufficient lapping and grinding ability for brittle materials such as glass, monocrystalline silicon and ceramics to achieve an optically smooth surface. Less

阳极电火花沉积（ASD）是一种通过电火花形成陶瓷涂层膜的相对较新的方法。在电解浴中将陶瓷沉积在正极上，所述电解浴包括水溶液和作为细磨粒施加的分散的陶瓷细颗粒。该方法不使用结合剂，可在基体上成功地形成由细磨料和阳极化合物组成的各种沉积层，所制备的细磨料层具有与基体结合力好、结构相对多孔等优点，具有很高的研磨和磨削工具的潜力，在切屑兜中起着重要作用。然而，由于ASD工艺的初始反应与阳极氧化工艺形成氧化铝涂层的初始反应非常相似，因此待沉积的基底仅限于金属，特别是Al、Mg、Ti等。 ...更多信息 研究了它们对研磨和磨削过程的影响。由于ASD工艺与基体形状无关，铝合金是最好的金属，具有良好的附着力，对应用非常有用，因此对铝箔和线材进行了基体金属试验，作者发现ASD工艺由于在同一层中形成氧化铝，使细磨料牢固地固定在沉积层中。使用研磨片来评估玻璃材料的研磨能力。结果表明，材料去除深度取决于磨料的种类和砂轮的接触压力，研磨比也取决于接触压力。在最佳研磨条件下，获得了良好的表面完整性。作者得出的结论是，新开发的磨料工具，采用阳极火花放电沉积有足够的研磨和磨削能力的脆性材料，如玻璃，单晶硅和陶瓷，以实现光学光滑的表面。少