Process for the manufacture of compressed articles by compacting metallic powder and subsequently sintering the compact
    1.
    发明授权
    Process for the manufacture of compressed articles by compacting metallic powder and subsequently sintering the compact 有权
    通过压制金属粉末并随后烧结该压块的方法制造压缩制品

    公开(公告)号:US06562291B2

    公开(公告)日:2003-05-13

    申请号:US09798802

    申请日:2001-03-02

    IPC分类号: B22F300

    摘要: A process for the manufacture of compressed articles, particularly cemented-carbide cutting blade inserts, by compacting metallic powder and subsequently sintering the compact, particularly cemented-carbide reversible cutting blade inserts, which have a seating surface and at least one cutting edge extending approximately in parallel with the seating surface which is at a predetermined distance from the seating surface, by means of a press having a die-plate and a top ram and a bottom ram, comprising the steps of: Charging a predetermined volume of metallic powder into the die-plate bore with the bottom ram taking a predetermined charging position in the die-plate bore, Displacing the bottom ram and the top ram to predetermined first and second positions, Displacing the bottom ram and, if need be, the top ram more while simultaneously measuring the compressive force at least for the bottom ram with the shift of the bottom ram or top ram being effected along a predetermined curve desired for the compressive force, Terminating the charging movement of the bottom ram and, if need be, the top ram when a predetermined value is reached for the compressive force.

    摘要翻译: 一种用于制造压缩制品,特别是硬质合金切割刀片插入件的方法,其通过压实金属粉末并随后烧结紧凑的,特别是硬质合金的可逆切割刀片刀片,其具有就座表面和至少一个大致在 通过具有模板和顶部压头和底部压头的压力机平行于与就座表面预定距离的座面,包括以下步骤:将预定体积的金属粉末装入模具中 板底孔,底部压头在模板孔中具有预定的充电位置,将底部压头和顶部压头移动到预定的第一和第二位置,同时更换底部压头,如果需要的话,顶部压头 至少对于底部压头的压力测量,其中底部压头或顶部压头的移动沿着期望的f的预定曲线来实现 或压缩力,当压缩力达到预定值时,终止底部压头的充电运动,如果需要的话,停止顶部压头。

    Method for determining the position of a punch of a powder press
    2.
    发明授权
    Method for determining the position of a punch of a powder press 失效
    确定粉末压机冲头位置的方法

    公开(公告)号:US06442859B1

    公开(公告)日:2002-09-03

    申请号:US09551275

    申请日:2000-04-18

    IPC分类号: G01B730

    摘要: A method for determining the position of a punch with respect to a die in a powder press with the following steps: storing a reference measure in a computer corresponding to a predetermined relatively small distance of the punch to the upper edge or lower edge of the die, storing a reference offset in the computer by counting the pulses of an incremental path sensor actuated by the punch on raising the punch from the reference measure to an index pulse, measuring the position of the punch above the reference offset using an absolute path sensor which evaluates the path of the adjusting piston for the punch and whose readings are inputted into the computer, and inputting the pulses of the incremental path sensor into the computer as soon as the actual position of the punch is equal or smaller than the sum measure of the reference offset and the reference measure.

    摘要翻译: 一种用于通过以下步骤确定冲头相对于模头的位置的方法:将参考测量存储在计算机中,该计算机对应于冲头的预定相对小的距离到模具的上边缘或下边缘 通过计数由冲头致动的增量路径传感器的脉冲,将冲头从参考测量提升到索引脉冲,计算出参考偏移量,使用绝对路径传感器测量冲头位于参考偏移上方的位置 评估冲头的调节活塞的路径,其读数被输入到计算机中,并且一旦冲头的实际位置等于或小于参考的总和度量,则将增量路径传感器的脉冲输入计算机 偏移和参考测量。