METHOD FOR SHAPING A SHAPE MEMORY WORKPIECE AND SHAPING TOOL FOR SHAPING A SHAPE MEMORY WORKPIECE

    公开(公告)号:US20230175109A1

    公开(公告)日:2023-06-08

    申请号:US18062866

    申请日:2022-12-07

    申请人: Admedes GmbH

    IPC分类号: C22F1/00 C22F1/10 F03G7/06

    摘要: A method for shaping a shape memory workpiece includes:

    providing a shape memory workpiece having a first diameter and a predetermined shaping temperature;
    arranging the shape memory workpiece on a shaping tool;
    heating the shape memory workpiece to the shaping temperature;
    first expansion of the shape memory workpiece to a second diameter that is larger than the first diameter;
    first changing of the temperature of the shape memory workpiece to an intermediate temperature below or above the shaping temperature;
    bringing the shape memory workpiece to the shaping temperature again;
    second expansion of the shape memory workpiece to a third diameter that is larger than the second diameter;
    ejecting the shape memory workpiece from the shaping tool; and
    final cooling of the shape memory workpiece to a cooling temperature below the intermediate temperature.


    A shaping tool is also provided.

    Method for manufacturing Ni-based alloy member

    公开(公告)号:US11566313B2

    公开(公告)日:2023-01-31

    申请号:US16058497

    申请日:2018-08-08

    摘要: Provided is a method for manufacturing an Ni-based alloy member in which the equilibrium amount of γ′ phase precipitation at 700° C. is from 30 to 70 volume %. The method includes the steps of preparing an Ni-based alloy powder having a predetermined chemical composition; forming a precursor body wherein an average grain diameter of the γ phase grains is 50 μm or less, by using the Ni-based alloy powder; and heating the precursor body to a temperature at least the γ′ phase solvus temperature and subsequently slow-cooling the heated precursor body from the temperature to a temperature at least 100° C. lower than the γ′ phase solvus temperature at a cooling rate of 100° C./h or lower. There is obtained a softened body in that the γ′ phase particles of at least 20 volume % precipitate between/among the γ phase grains having an average grain diameter of 50 μm or less.

    Lens alignment system and method
    25.
    发明授权

    公开(公告)号:US11550113B2

    公开(公告)日:2023-01-10

    申请号:US17467753

    申请日:2021-09-07

    摘要: A lens alignment system and method is disclosed. The disclosed system/method integrates one or more lens retaining members/tubes (LRM/LRT) and focal length spacers (FLS) each comprising a metallic material product (MMP) specifically manufactured to have a thermal expansion coefficient (TEC) in a predetermined range via selection of the individual MMP materials and an associated MMP manufacturing process providing for controlled TEC. This controlled LRM/LRT TEC enables a plurality of optical lenses (POL) fixed along a common optical axis (COA) by the LRM/LRT to maintain precise interspatial alignment characteristics that ensure consistent and/or controlled series focal length (SFL) within the POL to generate a thermally neutral optical system (TNOS). Integration of the POL using this LRM/LRT/FLS lens alignment system reduces the overall TNOS implementation cost, reduces the overall TNOS mass, reduces TNOS parts component count, and increases the reliability of the overall optical system.

    Functionally graded variable entropy alloys with resistance to hydrogen induced cracking

    公开(公告)号:US11549165B2

    公开(公告)日:2023-01-10

    申请号:US17343021

    申请日:2021-06-09

    IPC分类号: B32B15/01 C22C19/05 C22F1/10

    摘要: The disclosure provides for a layered metal with resistance to hydrogen induced cracking and method of production thereof, comprising a core metal alloy and a skin metal alloy. The core metal alloy comprises twinned boundaries. The core metal alloy has undergone plastic deformation and a heat treatment. The core metal alloy comprises nickel and cobalt. The skin metal alloy is disposed on the core metal alloy, wherein the skin metal alloy comprises an entropy greater than the core metal alloy. The core metal alloy comprises a greater density of twinned boundaries than the skin metal alloy. The skin metal alloy comprises a stacking fault energy of at least about 50 mJ/m2, and the skin metal alloy comprises iron, aluminum, and boron.

    Low thermal expansion alloy
    27.
    发明授权

    公开(公告)号:US11530466B2

    公开(公告)日:2022-12-20

    申请号:US16500569

    申请日:2018-04-03

    摘要: A low thermal expansion alloy having a high rigidity and a low thermal expansion coefficient comprising, by mass %, C: 0.040% or less, Si: 0.25% or less, Mn: 0.15 to 0.50%, Cr: 8.50 to 10.0%, Ni: 0 to 5.00%, and Co: 43.0 to 56.0%, S: 0 to 0.050%, and Se: 0 to 0.050% and having a balance of Fe and unavoidable impurities, the contents of Ni, Co, and Mn represented by [Ni], [Co], and [Mn] satisfying 55.7≤2.2[Ni]+[Co]+1.7[Mn]≤56.7 and the structure being an austenite single phase.

    Method for preparing ultrafine-grained superalloy bar

    公开(公告)号:US11420241B2

    公开(公告)日:2022-08-23

    申请号:US16804071

    申请日:2020-02-28

    摘要: A method for preparing an ultrafine-grained superalloy bar, the method including: 1) designing a rolling machine including two rollers and two guide plates, where each of the two rollers includes a first roller and a second roller; the first roller includes a first curve and the second roller includes a second curve; the first curve and the second curve form a generatrix of the two rollers; 2) disposing the two guide plates with two curved surfaces thereof opposite to each other; disposing the two rollers to be between the two guide plates; where the two rollers and the two guide plates form a deformation zone of the rolling machine; and 3) driving the two rollers to rotate around their central axes, heating and introducing a superalloy blank from a gap between two first rollers to the deformation zone of the rolling machine; advancing the superalloy blank towards two second rollers.