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    Peening apparatus and method of peening using the same
    1.
    发明授权
    Peening apparatus and method of peening using the same 有权

    公开(公告)号：US11958095B2

    公开(公告)日：2024-04-16

    申请号：US17888696

    申请日：2022-08-16

    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY

    Inventor： Sunghwan Jung

    IPC: C21D7/06 ,  B21D31/06 ,  B24C5/00

    CPC classification number: B21D31/06 ,  B24C5/005 ,  C21D7/06

    Abstract: According to an aspect of the disclosure, there may be provided a peening apparatus for generating a compressive residual stress on a pipe member including at least one curved round portion and having a hollow inside formed therein in which a first fluid and a second fluid, which is in a gas phase, are accommodated, the apparatus including: a probe which is disposed such that it is submerged in the first fluid supplied to the hollow inside, and which is configured to apply a wave to the first fluid, wherein the first fluid and the second fluid have different acoustic impedances, so that the wave is totally reflected on a reflection surface where the first fluid and the second fluid are in contact, and forms a standing wave, and wherein a cavity generated and grown by the formed standing wave is exploded and emits a shock wave or microjet, which generates a compressive residual stress on the inner surface of the pipe member surrounding the hollow inside.

    Ultrasonic peening-type integrated machining method of cutting and extrusion
    3.
    发明授权
    Ultrasonic peening-type integrated machining method of cutting and extrusion 有权

    公开(公告)号：US10994386B2

    公开(公告)日：2021-05-04

    申请号：US16544467

    申请日：2019-08-19

    Applicant: Beihang University

    Inventor： Deyuan Zhang ,  Zhenghui Lu ,  Xun Li ,  Xinggang Jiang ,  Shenliang Yang ,  Xiangyu Zhang ,  Daxi Geng

    IPC: B24B35/00 ,  B24B1/04 ,  B24B39/00 ,  B24C1/10 ,  B28D5/04 ,  B24C5/00

    Abstract: An ultrasonic peening-type integrated machining method for cutting and extrusion includes: applying transverse ultrasonic vibration or a vibration component, which is vertical to a cutting speed direction to a cutting tool on a machine tool; setting a cutting parameter and an ultrasonic vibration parameter such that a dynamic negative clearance angle is generated in a cutting procedure and a flank face of the cutting tool conducts ultrasonic peening extrusion on the surface of the workpiece; setting an extrusion overlap ratio; setting a wear standard of flank faces extruded by the cutting tool; controlling a vibration cutting trajectory phase difference of the cutting tool during two adjacent rotations; and turning on the machine tool in order to ensure that cutting and surface extrusion strengthening of the workpiece are completed in one procedure without separate strengthening procedures. The method conducts extrusion strengthening on the surface of the workpiece while cutting the workpiece.

    Nozzle device
    6.
    发明授权
    Nozzle device 有权

    公开(公告)号：US10058978B2

    公开(公告)日：2018-08-28

    申请号：US15484350

    申请日：2017-04-11

    Applicant: SUGINO MACHINE LIMITED

    Inventor： Sho Sato ,  Sachie Ejiri

    IPC: B24C5/00 ,  B24C5/04

    CPC classification number: B24C5/04

    Abstract: A nozzle device produces a more convergent water jet to improve the quality of a cut surface. The nozzle device includes a liquid supply channel for supplying a liquid, an orifice for discharging the liquid supplied from the liquid supply channel to produce a water jet, a straightening unit arranged downstream of the water jet from the orifice and having a through-hole to surround the water jet, a first air supply channel for supplying a gas toward a location upstream of the water jet from the through-hole and toward the orifice, and a second air supply channel arranged downstream of the water jet from the first air supply channel for supplying the gas toward a location inside the through-hole or a location downstream of the water jet from the through-hole.

    PUMP SYSTEMS AND ASSOCIATED METHODS FOR USE WITH WATERJET SYSTEMS AND OTHER HIGH PRESSURE FLUID SYSTEMS
    10.
    发明申请
    PUMP SYSTEMS AND ASSOCIATED METHODS FOR USE WITH WATERJET SYSTEMS AND OTHER HIGH PRESSURE FLUID SYSTEMS 有权
    泵系统和相关方法用于水喷射系统和其他高压流体系统

    公开(公告)号：US20150252796A1

    公开(公告)日：2015-09-10

    申请号：US14660804

    申请日：2015-03-17

    Applicant: OMAX Corporation

    Inventor： Darren Stang ,  Chidambaram Raghavan ,  Scott D. Veenhuizen

    IPC: F04B11/00 ,  F04B9/02 ,  B24C5/00

    CPC classification number: F04B11/005 ,  B24C5/00 ,  B26F3/004 ,  F04B1/08 ,  F04B1/16 ,  F04B9/02 ,  F04B11/0058 ,  F04B53/006 ,  F04B53/144

    Abstract: High pressure pump systems with reduced pressure ripple for use with waterjet systems and other systems are described herein. A pump system configured in accordance with a particular embodiment includes four reciprocating members operably coupled to a crankshaft at 90 degree phase angles. The reciprocating members can include plungers operably disposed in corresponding cylinders and configured to compress fluid (e.g., water) in the cylinders to pressures suitable for waterjet processing, such as pressures exceeding 30,000 psi.

    Abstract translation: 这里描述了与喷水系统和其他系统一起使用的具有减小的压力波动的高压泵系统。 根据特定实施例配置的泵系统包括可操作地以90度相位角联接到曲轴的四个往复运动构件。 往复运动构件可以包括可操作地设置在对应的气缸中并且构造成将气缸中的流体（例如水）压缩到适于水射流加工（例如超过30,000psi的压力）的压力的柱塞。

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