GRINDING MEANS AND METHOD FOR PRODUCING THE GRINDING MEANS

    公开(公告)号:US20240293914A1

    公开(公告)日:2024-09-05

    申请号:US18572994

    申请日:2022-06-22

    IPC分类号: B24D3/06 B24D18/00

    CPC分类号: B24D3/06 B24D18/0072

    摘要: The invention relates to a grinding means (1) for grinding workpieces, comprising:



    a carrier (2), e.g., a carrier disk or a carrier strip,
    abrasive grains (4) applied to the carrier (2), and
    a binder (6) applied to the carrier (2).




    To enable material saving and energy efficient production nanoparticles (8) are held in the binder (6)



    which comprise a superparamagnetic, ferrimagnetic and/or ferromagnetic material which can be excited by means of one or more of the following measures:

    an alternating electric induction field,
    an alternating magnetic field
    microwave radiation,


    where the nanoparticles (8) can be heated by means of the excitation, and
    where the binder (6) thermally cures.




    Furthermore, a method for producing is provided.

    COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

    公开(公告)号:US20190240810A1

    公开(公告)日:2019-08-08

    申请号:US16385781

    申请日:2019-04-16

    发明人: Steven J. Keipert

    IPC分类号: B24D11/00 B24D3/06 B24D3/28

    CPC分类号: B24D11/001 B24D3/06 B24D3/28

    摘要: A coated abrasive article includes a backing, a make layer, crushed abrasive particles, and a size layer. The crushed abrasive particles include: 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and 0 to 65 weight percent of crushed filler particles having a second composition and a second size grade. The first and second compositions and/or size grades are different. The coated abrasive article has a direction of intended use, a majority of the platey crushed abrasive particles of the coated abrasive article are positioned with their thickness oriented substantially parallel to the direction of intended use. A method of making the coated abrasive article is also disclosed.

    SINTERED VITRIFIED SUPERFINISHING GRINDSTONE

    公开(公告)号:US20180257199A1

    公开(公告)日:2018-09-13

    申请号:US15559716

    申请日:2015-08-05

    申请人: MIZUHO CO., LTD.

    摘要: A sintered vitrified superfinishing grindstone is provided which is a sintered product which is obtained by compression molding of a mixed powder of: a sinterable vitrified binder composed of a powder of a borosilicate glass composition; hard abrasive grains; and soft abrasive grains; and which includes bonded portions formed by necking due to heat compression, between particles of the powder of the borosilicate glass composition which are in contact with each other; and wherein the sinterable vitrified binder contains from 94 to 100% by mass of a powder composed of a low-melting-point borosilicate glass composition containing from 35 to 55% by mole of SiO2; from 3 to 5% by mole of A12O3; from 10 to 35% by mole of B2O3; and from 25 to 30% by mole of R2O+RO.

    Cutter element for rock removal applications

    公开(公告)号:US10036208B2

    公开(公告)日:2018-07-31

    申请号:US14758198

    申请日:2013-12-23

    摘要: A cutter element for rock removal comprises a free standing PCD body (801, 1801) comprising two or more physical volumes (1702, 1703) within the boundary of the PCD body, wherein adjacent physical volumes differ in one or more of diamond and metal network compositional ratio, metal elemental composition and diamond grain size distribution, a functional working volume (803) distal to the PCD body, the functional working volume forming in use a region which comes into contact with the rock. A functional support volume (804) extant in use and having a proximal free surface extends from the functional working volume. The PCD body has a shape having an aspect ratio such that the ratio of the length (ae) of the longest edge of the circumscribing rectangular parallelepiped of the overall PCD body to the largest width (ad) of the smallest rectangular face from which the functional working volume extends of the circumscribing rectangular parallelepiped, is greater than or equal to 1.0, and one or more of the physical volumes forms at least part of one or other or both of the functional working volume and the functional support volume.