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    • 8. 发明申请
    • Method for measuring and calculating tensile elongation of ductile metals
    • 韧性金属拉伸伸长率的测量和计算方法
    • US20070151359A1
    • 2007-07-05
    • US11321826
    • 2005-12-29
    • Mark BroadleyJohn Eckert
    • Mark BroadleyJohn Eckert
    • G01N3/08
    • G01N3/08G01N3/068G01N2203/0017
    • The present invention is a method for measuring and calculating tensile elongation of ductile metals on small diameter specimens. The method includes marking a tensile specimen with a pattern of gage markings at predetermined intervals. The tensile specimen is pulled to failure and then fitted together at the fracture. Distances between corresponding markings straddling the fracture are measured extending progressively outward from the fracture. From the measurements, elongation as a function of gage length is determined. End point elongation values (i.e., elongation at zero or near zero and infinite or very long gage lengths) are also determined. Determined elongations are scaled to reflect the values that would have been generated on a standard 0.5 inch diameter specimen. Based on the scaled elongation as a function of gage length and the end point elongation values, a value of elongation can be determined that represents a material property for FEA modeling the plastic strain behavior of a device.
    • 本发明是用于测量和计算小直径试样上的延性金属的拉伸伸长率的方法。 该方法包括以规定的间隔以规格标记图案标记拉伸试样。 将拉伸试样拉伸破坏,然后在断裂处装配在一起。 跨越骨折的相应标记之间的距离被测量从骨折逐渐向外延伸。 根据测量,确定作为量具长度的函数的伸长率。 还确定了终点伸长值(即在零或接近零的伸长率以及无限长或非常长的量程长度)。 确定的伸长率被缩放以反映在标准0.5英寸直径的样品上产生的值。 基于作为量具长度和端点伸长值的函数的缩放伸长率,可以确定表示用于对设备的塑性应变行为建模的FEA的材料性质的伸长率值。
    • 9. 发明申请
    • AIR EJECTOR FOR LATHE
    • 空气喷射器
    • US20150321261A1
    • 2015-11-12
    • US14274492
    • 2014-05-09
    • Accellent, Inc.
    • John Stephen Almasi
    • B23B13/12B65G51/02B23Q7/00
    • B23B13/12B23B13/02B23B13/128B23B2270/027B23Q7/006B65G51/02Y10T82/2514
    • A part ejector is shown and described wherein a machined part in a CNC lathe is ejected from a spindle of the lathe by means of an air pressure differential. The part ejector includes inner and outer tubes that are coupled to, and aligned with a spindle collet. Machined parts are received within the inner tube and a pin tool moves a pin into the inner tube to pneumatically seal the inner tube and push a machined part past one or more air ports that pneumatically connect the inner tube with an air channel located between the inner and outer tubes. Pressurized air is applied to the air channel and the pin is partially retracted to uncover the air ports thus allowing the pressurized air to enter the inner tube and eject the machined part out.
    • 示出并描述了一种部件喷射器,其中CNC车床中的机加工部件借助气压差从车床的主轴排出。 部件喷射器包括联接到主轴夹头并与主轴夹头对准的内管和外管。 加工部件被容纳在内管内并且销工具将销移动到内管中以气动地密封内管并且将加工的部件推过一个或多个空气端口,该空气端口将内管气动地连接到位于内部管 和外管。 加压空气被施加到空气通道并且销部分地缩回以露出空气端口,从而允许加压空气进入内管并将加工的部件排出。