Method for removal of abradable material from gas turbine engine airseals
    1.
    发明授权
    Method for removal of abradable material from gas turbine engine airseals 失效
    从燃气涡轮发动机气囊中去除可磨损材料的方法

    公开(公告)号:US5293717A

    公开(公告)日:1994-03-15

    申请号:US920936

    申请日:1992-07-28

    摘要: A method for removing a predetermined amount of material from the inner surface of a circular article which deviates from a true circular configuration. The outer surface of the article is touch probed to determine its true location in space, and the data are stored in a computer memory. These data are then compared to engineering design data to establish the location of the surface to which material removal is desired. A control computer compares the measured data with the design data, and sends commands to the machine control system, causing the machine to remove the excess material down to the desired dimension. Any deviations from circular are compensated for by moving the article radially relative to the cutting tool as the article moves circumferentially relative to the cutting tool.

    摘要翻译: 一种用于从圆形物品的内表面去除预定量的材料的方法,其偏离真正的圆形构造。 物品的外表面被触摸探测以确定其在空间中的真实位置,并且将数据存储在计算机存储器中。 然后将这些数据与工程设计数据进行比较,以建立需要去除材料的表面的位置。 控制计算机将测量数据与设计数据进行比较,并将命令发送到机器控制系统,使机器将多余的材料移除到所需尺寸。 当制品相对于切割工具周向移动时,通过相对于切割工具径向地移动物品来补偿任何与圆形的偏差。

    Electrode dressing template
    5.
    发明授权

    公开(公告)号:US07291799B2

    公开(公告)日:2007-11-06

    申请号:US11260352

    申请日:2005-10-27

    IPC分类号: B23H1/04 B23H1/06

    摘要: Disclosed are various embodiments of an EDM electrode dressing template comprising a body made of an electrically conductive material. Bonded to the body is a pad with an electrically conductive material with hardness greater than the body. An electrode with an eroded end is positioned proximate the pad and a DC current pulses between the eroded end and the pad. After a period of time, the eroded end is shaped into a dressed tip. Since the pad is less susceptible to spark erosion than the body, the electrode is more consistently dressed and the template is replaced less frequently.