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公开(公告)号：US20170008152A1
公开(公告)日：2017-01-12
申请号：US15114187
申请日：2015-01-26
Applicant: Donald Stuart MILLER
Inventor： Donald Stuart MILLER
Abstract: A composite focus tube for a cutting head of an abrasive waterjet cutting machine includes a chemical vapor deposition diamond (CVDD) tube retained within a holder. The CVDD tube is held within a passage extending through the holder by filling the volume between walls of the CVDD tube and walls of the passage with a polymer, ideally an adhesive, or with a low-melting point metal or alloy, which support and hold the CVDD tube in position without exerting significant stress on it. A longitudinal axis of a through bore of the CVDD tube coincides with a centerline of the holder to allow precise location and alignment of an abrasive waterjet emitted from the CVDD tube. The CVDD tube has a rough, faceted outer surface and may have a variable wall thickness. The holder may comprise the body of the cutting head.
Abstract translation: 用于磨料水射流切割机的切割头的复合聚焦管包括保留在保持器内的化学气相沉积金刚石（CVDD）管。 CVDD管被保持在延伸穿过保持器的通道内，通过用聚合物（理想地是粘合剂）填充CVDD管的壁和通道的壁之间的体积，或者与支撑和保持的低熔点金属或合金 CVDD管的位置不会对其施加显着的应力。 CVDD管的通孔的纵向轴线与保持器的中心线重合，以允许从CVDD管发射的磨料水射流的精确位置和对准。 CVDD管具有粗糙的多面外表面，并且可具有可变的壁厚。 保持器可以包括切割头的主体。
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公开(公告)号：US20240369161A1
公开(公告)日：2024-11-07
申请号：US18262636
申请日：2022-01-25
Applicant: Donald Stuart MILLER
Inventor： Donald Stuart MILLER
Abstract: A composite chemical vapour deposition diamond (CVDD) focus tube (30, 32, 50) for an abrasive waterjet cutting tool comprises a CVDD tube with a protective ring (55) of superhard material, such as polycrystalline diamond (PCD), CVDD or cubic boron nitride (CBN) at its outlet end. The CVDD tube is encased in a reinforcing material such as a metal or metal alloy, or a plastics material that has set solid in situ. The reinforcing material (38, 51, 81, 91) supports the CVDD tube and in most versions the protective ring, too. The protective ring extends across an outlet face of the composite CVDD focus tube to protect it from abrasive and water reflected back from a workpiece on to the outlet face. The protective ring may be formed as an integral part of the CVDD tube or may comprise a separately formed element mounted to the outlet end of the CVDD tube. The protective ring may be mounted to a former around which the CVDD tube is then formed, or it may be attached by means of the reinforcing material, such as metal deposited by plating.
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公开(公告)号：US20200023492A1
公开(公告)日：2020-01-23
申请号：US16284479
申请日：2019-02-25
Applicant: Donald Stuart MILLER
Inventor： Donald Stuart MILLER
Abstract: A composite focus tube for a cutting head of an abrasive waterjet cutting machine includes a chemical vapor deposition diamond (CVDD) tube retained within a holder. The CVDD tube is held within a passage extending through the holder by filling the volume between walls of the CVDD tube and walls of the passage with a polymer, ideally an adhesive, or with a low-melting point metal or alloy, which support and hold the CVDD tube in position without exerting significant stress on it. A longitudinal axis of a through bore of the CVDD tube coincides with a centerline of the holder to allow precise location and alignment of an abrasive waterjet emitted from the CVDD tube. The CVDD tube has a rough, faceted outer surface and may have a variable wall thickness. The holder may comprise the body of the cutting head.
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