METHOD OF IMPARTING COMPRESSIVE RESIDUAL STRESS TO BALLS
    1.
    发明公开
    METHOD OF IMPARTING COMPRESSIVE RESIDUAL STRESS TO BALLS 审中-公开
    将压缩残余应力赋予球的方法

    公开(公告)号:EP3162493A1

    公开(公告)日:2017-05-03

    申请号:EP16195504.2

    申请日:2016-10-25

    申请人: Aktiebolaget SKF

    摘要: A method of imparting compressive residual stress to a first plurality of balls (16) includes a) placing the balls between a first body (12) having a first surface (14) and a second body (20) having a second surface (22), the first surface including a smooth contact portion, the smooth contact portion being substantially flat or convex and having a surface hardness greater than or equal to an initial surface hardness of the balls, b) imparting a compressive stress along a first diameter of the balls (16) by pressing the first body (12) toward the second body (20) or the second body (20) toward the first body (12) or the first and second bodies toward one another with a force, and c) causing relative movement between the first surface (14) and the second surface (22) while maintaining the force at or above a minimum level to impart the compressive stress along other diameters of the balls (16) different than the first diameter.

    摘要翻译: 一种将压缩残余应力传递给第一多个球(16)的方法包括:a)将球放置在具有第一表面(14)的第一主体(12)和具有第二表面(22)的第二主体(20)之间; ,所述第一表面包括平滑接触部分,所述平滑接触部分基本上是平坦或凸起的并且具有大于或等于所述球的初始表面硬度的表面硬度,b)沿所述球的第一直径施加压缩应力 (12)朝向所述第二主体(20)或所述第二主体(20)朝向所述第一主体(12)或所述第一主体和所述第二主体朝着彼此朝向彼此按压,以及c)使所述第一主体 在第一表面(14)和第二表面(22)之间移动,同时保持力处于或高于最小水平以沿着与第一直径不同的其他直径的球(16)施加压缩应力。

    APPARATUS FOR PRODUCING COMPRESSIVE RESIDUAL STRESS IN BALLS
    2.
    发明公开
    APPARATUS FOR PRODUCING COMPRESSIVE RESIDUAL STRESS IN BALLS 审中-公开
    用于在球内产生压缩性残余应力的装置

    公开(公告)号:EP3162494A1

    公开(公告)日:2017-05-03

    申请号:EP16195505.9

    申请日:2016-10-25

    申请人: Aktiebolaget SKF

    摘要: An apparatus (10) for imparting compressive residual stress to at least a surface portion of a first plurality of balls (16) includes a first body (12) having a first surface (14), the first surface including a smooth contact portion, the smooth contact portion being substantially flat or convex and having a surface hardness greater than or equal to the initial surface hardness of the balls (16). The apparatus also includes a second body (20) having a second surface (22), the first surface overlying the second surface, and at least one drive (24) operably connected to the first body (12) or to the second body (20) and configured to move one of the first and second bodies relative to the other body at a substantially fixed distance, the at least one drive also being configured to move the first body toward the second body with a force or to move the second body toward the first body with the force.

    摘要翻译: 一种用于向第一多个球(16)的至少一个表面部分施加压缩残余应力的设备(10)包括具有第一表面(14)的第一主体(12),第一表面包括平滑接触部分, 平滑的接触部分基本上是平的或凸起的,并具有大于或等于球(16)的初始表面硬度的表面硬度。 该设备还包括具有第二表面(22)的第二主体(20),第一表面覆盖第二表面,并且至少一个驱动器(24)可操作地连接到第一主体(12)或第二主体(20 )并且被配置为以基本上固定的距离相对于另一个本体移动第一和第二本体中的一个,所述至少一个驱动器还被配置为通过力将第一本体朝向第二本体移动或朝向第二本体移动 与力量的第一个身体。