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    METHODS OF MAKING METAL BOND AND VITREOUS BOND ABRASIVE ARTICLES, AND ABRASIVE ARTICLE PRECURSORS
    15.
    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：US20210316503A1

    公开(公告)日：2021-10-14

    申请号：US17304596

    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: B29C64/153 ,  B24D3/06 ,  B24D3/14 ,  B24D5/10 ,  B24D18/00 ,  B24D7/10 ,  B24D5/06 ,  B22F12/00 ,  B29C64/393

    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.

    SHAPED VITRIFIED ABRASIVE AGGLOMERATE, ABRASIVE ARTICLES, AND METHOD OF ABRADING
    17.
    发明申请
    SHAPED VITRIFIED ABRASIVE AGGLOMERATE, ABRASIVE ARTICLES, AND METHOD OF ABRADING 审中-公开

    公开(公告)号：US20190283216A1

    公开(公告)日：2019-09-19

    申请号：US16318655

    申请日：2017-07-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark A. Lukowski ,  Brian D. Goers ,  Negus B. Adefris ,  Scott W. Peterson

    IPC: B24D3/34 ,  B24D3/32

    Abstract: An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

    Method of sorting abrasive particles, abrasive particle distributions, and abrasive articles including the same
    19.
    发明授权
    Method of sorting abrasive particles, abrasive particle distributions, and abrasive articles including the same 有权
    研磨颗粒，磨料颗粒分布以及包括其的磨料制品的分选方法

    公开(公告)号：US08961632B2

    公开(公告)日：2015-02-24

    申请号：US14100133

    申请日：2013-12-09

    Applicant: 3M Innovative Properties Company

    Inventor： Gary M. Palmgren ,  Brian D. Goers

    IPC: B24D3/00 ,  B24D11/00 ,  B24D18/00 ,  C09K3/14 ,  B24D3/02 ,  C09C1/68 ,  B07B1/00 ,  C25D7/00

    CPC classification number: C09K3/1409 ,  B07B1/00 ,  B24D18/00 ,  C25D7/00

    Abstract: A method of making an abrasive particle distribution includes: sorting an initial lot of abrasive particles into a plurality of sublots including first and second sublots of the abrasive particles according to their average particle diameter and aspect ratio, and combining the first and second sublots. The initial lot conforms to an abrasives industry specified nominal grade. The first sublot has an average particle diameter and aspect ratio less than the second sublot. A sum of the first sublot and the second sublot contains fewer abrasive particles than the initial lot. The resultant abrasive particle distribution and abrasive articles including the same are also disclosed.

    Abstract translation: 制造磨料颗粒分布的方法包括：根据它们的平均粒径和纵横比，将初始批次的研磨颗粒分选成包括研磨颗粒的第一和第二子图的多个分区，以及组合第一和第二分区。 初始批次符合磨料行业规定的标称等级。 第一子区具有小于第二子区的平均粒径和纵横比。 第一个子区域和第二个子区域的总和包含比初始批次更少的磨料颗粒。 还公开了所得的磨料颗粒分布和包括其的磨料制品。

    Magnetically assisted disposition of magnetizable abrasive particles
    20.
    发明授权
    Magnetically assisted disposition of magnetizable abrasive particles 有权

    公开(公告)号：US12269982B2

    公开(公告)日：2025-04-08

    申请号：US16479738

    申请日：2018-01-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Aaron K. Nienaber ,  Joseph B. Eckel ,  Thomas J. Nelson ,  Brian D. Goers ,  Samad Javid ,  Ronald D. Jesme ,  Badri Veeraraghavan ,  Sheryl A Vanasse

    IPC: C09K3/14 ,  C23C14/35 ,  C23C26/00

    Abstract: According to one embodiment, a method can comprise: providing a tool that has a first portion that comprises a first material and a second portion that comprises a second material, wherein the second material differs from the first material and the tool is subject to a magnetic field, and wherein the first material and the second material are provided such that the magnetic field is relatively stronger at and adjacent the first portion relative to the magnetic field at and adjacent the second portion; positioning a surface adjacent to the tool so as to be subject to the magnetic field; and disposing magnetizable abrasive particles on the surface, wherein the magnetizable abrasive particles are attracted to an area on the surface adjacent the first portion where the magnetic field is relatively stronger so as to provide for at least one of a desired orientation, placement and alignment of a majority of the magnetizable abrasive particles on the surface.

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