Polishing features formed in components

    公开(公告)号:US10065289B2

    公开(公告)日:2018-09-04

    申请号:US14842962

    申请日:2015-09-02

    申请人: Apple Inc.

    IPC分类号: B24C1/08 B24C3/32 B24B31/116

    摘要: A polishing system and method for polishing a channel formed within a component is disclosed. The polishing system may include a tooling element operable to be positioned within a recess formed partially through a component. The tooling element may include an outer surface having a geometry corresponding to a geometry of the recess formed in the component. The tooling element forms a channel between the recess of the component and the tooling element when positioned in the recess. The system may also include a first member in fluid communication with a first opening of the channel, and a second member in fluid communication with a second opening of the channel. The second opening may be in fluid communication with the first opening via the channel. Additionally, the first and second member may be configured to continuously vary a pressure within the channel to move an abrasive slurry within the channel.

    Apparatus for polishing surgical stents
    3.
    发明授权
    Apparatus for polishing surgical stents 失效
    用于抛光外科支架的装置

    公开(公告)号:US6086455A

    公开(公告)日:2000-07-11

    申请号:US21763

    申请日:1998-02-11

    申请人: John J. Frantzen

    发明人: John J. Frantzen

    摘要: A method for polishing radially expandable surgical stents is disclosed where fluid abrasive media M flows over surfaces of the stent 10 causing the surfaces of the stent 10 to be polished and streamlined. The stent 10 is temporarily provided with cylindrical support ends 20, which are not radially expandable to support the stent 10 during the polishing process. An interior polishing fixture 100 is provided which has cylindrical chambers 135 therein adapted to receive a stent 10 therein. Fluid abrasive media M then flows into bores 108 in the fixture 100 leading to the cylindrical chambers 135 and adjacent the inner diameter surfaces of the stent 10. Surfaces of the stent 10 forming the outer diameter are polished by placing the stent 10 within an exterior polishing fixture 200 which has a cylindrical recess 220 therein. The cylindrical recess 220 has a diameter greater than a diameter of outer surfaces of the stent 10 and includes a cylindrical shaft 270 passing axially through the cylindrical recess 220 upon which the stent 10 is located. Slanted bores 208 pass through walls of the exterior polishing fixture 200 and into the cylindrical recess 220, directing the abrasive media M adjacent exterior surfaces of the stent 10 and causing polishing of the exterior surfaces of the stent 10. The direction of abrasive media M flow can be reversed to make streamlining of segments of the stent 10 occur in a symmetrical fashion. After polishing of the stent 10 is completed, the cylindrical support ends 20 are removed and the stent 10 is ready for implantation and radial expansion within a body lumen L. When polished and streamlined, the radially expandable surgical stent 10 more effectively supports a body lumen L without excessive thrombus, restenosis and other medical complications.

    摘要翻译: 公开了一种用于抛光径向可扩张的外科支架的方法,其中流体研磨介质M流过支架10的表面,导致支架10的表面被抛光和流线型化。 支架10临时设置有圆柱形支撑端20,其在径向可扩张以在抛光过程中支撑支架10。 提供了内部抛光固定器100,其具有适于在其中容纳支架10的圆柱形腔室135。 流体研磨介质M然后流入定位装置100中的通孔108中的孔108,其通向圆柱形腔135并邻近支架10的内径表面。通过将支架10置于外部抛光中来形成外径的支架10的表面被抛光 夹具200,其中具有圆柱形凹部220。 圆柱形凹部220的直径大于支架10的外表面的直径,并且包括圆柱形轴270,其轴向地穿过支架10所在的圆柱形凹部220。 倾斜孔208穿过外部抛光夹具200的壁并进入圆柱形凹槽220,将研磨介质M引导到支架10的外表面附近,并引起支架10的外表面的抛光。研磨介质M的流动方向 可以逆转以使支架10的段的精简以对称的方式发生。 在完成支架10的抛光之后,移除圆柱形支撑端20,并且支架10准备好在体腔L内进行植入和径向扩张。当抛光和流线型时,可径向扩张的手术支架10更有效地支撑体腔 L无血栓过多,再狭窄等医疗并发症。

    Method and apparatus for controlling the diameter and geometry of an
orifice with an abrasive slurry
    4.
    发明授权
    Method and apparatus for controlling the diameter and geometry of an orifice with an abrasive slurry 失效
    用研磨浆料控制孔口的直径和几何形状的方法和装置

    公开(公告)号:US5807163A

    公开(公告)日:1998-09-15

    申请号:US748050

    申请日:1996-11-12

    申请人: Winfield B. Perry

    发明人: Winfield B. Perry

    摘要: A system and method for radiusing and sizing microholes in diesel fuel injectors. A liquid abrasive slurry with rheological properties is used. As the slurry approaches and flows through the microhole it is at a first lower viscosity. Subsequently, the slurry is characterized by a higher viscosity which enables the use of a floor meter in the slurry flow path which directly and accurately monitors slurry flow rate and mass flow in real time. This allows for individual slurry processing of nozzles to their specified flow race in a continuous process.

    摘要翻译: 一种用于在柴油燃料喷射器中放置和调整微孔的方法。 使用具有流变特性的液体磨料浆料。 当浆料接近并流过微孔时,其处于第一较低的粘度。 随后,该浆料的特征在于较高的粘度,这使得能够使用浆料流动路径中的流量计实时地直接且准确地监测浆料流速和质量流量。 这允许喷嘴在连续过程中单独的浆料处理到其指定的流速。

    Apparatus and method for polishing lumenal prostheses
    5.
    发明授权
    Apparatus and method for polishing lumenal prostheses 失效
    用于抛光腔内假体的装置和方法

    公开(公告)号:US5788558A

    公开(公告)日:1998-08-04

    申请号:US556341

    申请日:1995-11-13

    申请人: Enrique J. Klein

    发明人: Enrique J. Klein

    IPC分类号: B24B31/116 B24B31/00

    CPC分类号: B24B31/116

    摘要: Methods and apparatus for deburring and rounding edges and polishing surfaces of radially expansible lumenal prostheses, such as stents and grafts, are provided. A stent (2) is mounted onto a polishing apparatus (58) and a flowable abrasive slurry is extruded through the apparatus in abrading contact with inner and outer surfaces (28, 29) and circumferential openings (30) in the stent. To polish the cut surfaces (32) and edges (34, 36) surrounding the openings, the abrasive slurry is introduced into an inner lumen (26) of the stent and extruded radially outward through the openings. The inner and outer wall surfaces 28, 29 are preferably pre-polished prior to cutting the slot pattern (i.e., openings 30) in the stent.

    摘要翻译: 本发明提供了可扩展的腔内假体(如支架和移植物)的去毛刺和边缘抛光表面的方法和装置。 将支架(2)安装在抛光装置(58)上,并且可流动的磨料浆料通过与装置内的内外表面(28,29)和周向开口(30)磨擦接​​触而被挤出。 为了研磨围绕开口的切割表面(32)和边缘(34,36),磨料浆料被引入到支架的内腔(26)中,并且通过开口径向向外挤出。 优选地,在切割支架内的狭槽图案(即,开口30)之前,内外表面28,29优选地被预先抛光。

    Orifice sizing using chemical, electrochemical, electrical discharge
machining, plating, coating techniques
    6.
    发明授权
    Orifice sizing using chemical, electrochemical, electrical discharge machining, plating, coating techniques 失效
    使用化学,电化学,放电加工,电镀,涂层技术的孔口尺寸

    公开(公告)号:US4995949A

    公开(公告)日:1991-02-26

    申请号:US265934

    申请日:1988-11-02

    摘要: A method of processing an orifice in a structure to attain a precise predetermined flow resistance through said orifice. Undersized orifices are machined by either electrochemical, chemical or electric discharge machining, while oversized orifices are electroplated, electroless plated or vapor deposition coated, such that the processing fluid, i.e. the electrolyte, corrosive fluid, dielectric or carrier gas as used in the machining, plating or coating process is passed through said orifice during said processing at a predetermined fixed pressure while measuring the dynamic flow resistance of said processing fluid through said orifice until said dynamic flow resistance is equal to that desired.

    摘要翻译: 一种处理结构中的孔口以通过所述孔口获得精确的预定流动阻力的方法。 通过电化学,化学或放电加工机械加工未加工的孔,而电镀,无电镀或气相沉积涂层的尺寸较大的孔,使得加工流体即电解质,腐蚀性流体,介电或载气用于机加工, 在所述处理期间,在预定的固定压力下,电镀或涂覆过程通过所述孔,同时通过所述孔测量所述处理流体的动态流动阻力,直到所述动态流动阻力等于期望值。

    Fuel injection valve with fluid honed discharge port and associated
methods of production
    7.
    发明授权
    Fuel injection valve with fluid honed discharge port and associated methods of production 失效
    燃油喷射阀具有流体珩磨排放口及相关生产方式

    公开(公告)号:US4687142A

    公开(公告)日:1987-08-18

    申请号:US673499

    申请日:1984-11-20

    摘要: A method for producing a smooth finish on the surfaces of a valve seat and a discharge port of a fuel injection valve having a main fuel injection valve body containing an electromagnetic coil, a fixed core, a movable core attracted magnetically towards the fixed core by the coil and a valve rod attached to the movable core and having a valve body for opening and closing a fuel discharge port in a valve seat-forming member attached to the valve body. The fuel discharge port is formed with a smooth surface finish by discharging a honing fluid against the surface. The honing fluid is also discharged against the surface of the valve seat to provide a smooth finish thereon and to provide a rounded corner at the juncture of the seat surface and the fluid discharge port.

    摘要翻译: 一种用于在具有主要燃料喷射阀体的燃料喷射阀的阀座和排出口的表面上产生平滑光洁度的方法,该主燃料喷射阀体包含电磁线圈,固定铁芯,可动铁芯,通过 线圈和连接到可动铁芯上的阀杆,并具有用于打开和关闭附接到阀体的阀座形成构件中的燃料排出口的阀体。 燃料排出口通过将珩磨流体排放到表面上而形成具有光滑的表面光洁度。 珩磨流体也被排放到阀座的表面上以在其上提供光滑的表面,并且在座面和流体排出口的接合处提供圆角。

    A METHOD AND APPARATUS FOR FINISHING A SURFACE OF A COMPONENT

    公开(公告)号:US20220161387A1

    公开(公告)日:2022-05-26

    申请号:US17602639

    申请日:2020-03-12

    申请人: ROLLS-ROYCE plc

    IPC分类号: B24B31/116 B24B19/14

    摘要: A method and apparatus for finishing a surface of a component. The method includes installing the component in an apparatus configured to deliver a flow of abrasives to the surface and to generate cavitation bubbles in a liquid contacting the surface using a cavitation generator that includes an ultrasonic generator configured to generate cavitation bubbles in the liquid contacting the surface by ultrasonic excitation in the liquid or a laser configured to generate cavitation bubbles in the liquid contacting the surface by laser excitation in the liquid; controlling the cavitation generator such that cavitation bubbles are generated to finish the surface by implosion of the cavitation bubbles; and controlling the flow of slurry to the surface so as to finish the surface by abrasion. An apparatus for finishing a surface of a component is also disclosed.

    Hollow spring and manufacturing method thereof

    公开(公告)号:US10987779B2

    公开(公告)日:2021-04-27

    申请号:US16616527

    申请日:2018-06-28

    发明人: Hironobu Sayama

    摘要: A hollow spring includes a steel tube in which the average of surface roughness is smaller than 10 μm across the entire inner surface of the steel tube and/or compressive residual stress is given to the entire inner surface of the steel tube. The hollow spring may be manufactured by a step of polishing the inner surface of the steel tube by flowing a viscoelastic abrasive medium (200) within the tubular member (10), between a first opening (11) and a second opening (12) of the tubular member (10). The abrasive medium (200) may include a viscoelastic base material and a granular abrasive. The inner surface of the steel tube is polished evenly to reduce the surface roughness and/or is given compressive residual stress to increase the fatigue life of the hollow spring.