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    Method of making a coated abrasive article
    19.
    发明授权
    Method of making a coated abrasive article 有权

    公开(公告)号：US11344998B2

    公开(公告)日：2022-05-31

    申请号：US15102835

    申请日：2014-12-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Scott R. Culler ,  John T. Boden ,  Steven J. Keipert ,  Negus B. Adefris

    IPC: B24D18/00 ,  B24D11/00

    Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.

    METHODS OF MAKING METAL BOND AND VITREOUS BOND ABRASIVE ARTICLES, AND ABRASIVE ARTICLE PRECURSORS
    20.
    发明申请
    METHODS OF MAKING METAL BOND AND VITREOUS BOND ABRASIVE ARTICLES, AND ABRASIVE ARTICLE PRECURSORS 有权

    公开(公告)号：US20210362297A1

    公开(公告)日：2021-11-25

    申请号：US17304604

    申请日：2021-06-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Carsten Franke ,  Maiken Givot ,  Malte Korten ,  Robert L.W. Smithson ,  Brian D. Goers ,  Negus B. Adefris ,  Thomas J. Anderson ,  Brian A. Shukla ,  Michael C. Harper ,  Elizaveta Y. Plotnikov

    IPC: B24D3/06 ,  B24D3/14 ,  B24D5/10 ,  B24D7/10 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/153 ,  B24D18/00 ,  B22F10/10 ,  B22F10/00

    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform. Step d) includes heating the abrasive article preform to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. A method of making a metal bond abrasive optionally includes infusing an abrasive article preform with a molten lower melting metal and solidifying the molten lower melting metal to provide the metal bond abrasive article. The present disclosure further provides a vitreous bond abrasive article precursor and a metal bond abrasive article precursor. Also, methods including receiving, by a manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.

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