Method of high energy density radiation beam lap welding
    34.
    发明授权
    Method of high energy density radiation beam lap welding 失效
    高能量密度辐射束搭接焊接方法

    公开(公告)号:US5603853A

    公开(公告)日:1997-02-18

    申请号:US395478

    申请日:1995-02-28

    Abstract: A method of welding at least two sheets using a high energy density radiation beam that preferably is a laser beam or an electron beam for producing a welded lap joint that is substantially completely fused across the width of overlap of the sheets preferably for enabling shaping or forming to be performed such that at least one of the sheets and at least portion of a weld line defined between the overlapped sheets are bent or three dimensionally contoured. In practicing a preferred embodiment of the method, the sheets are overlapped and welded by directing at least one radiation beam toward the overlapped sheets having sufficient power density and for a sufficient amount of time to weld the sheets such that they are substantially completely fused from front to back in the overlap region. As a result, the sheets form a blank that preferably is formed or shaped, such as by shaping, deep drawing, hydro-forming or roll forming, such that at least one of the sheets and a portion of the weld line of the sheets are bent or three dimensionally contoured. After shaping or forming, the sheets preferably form at least part of an article of manufacture.

    Abstract translation: 使用优选为激光束或电子束的高能量密度辐射束焊接至少两片的方法,该激光束或电子束用于产生焊接的搭接接头,其基本上完全熔合在片材的重叠宽度上,优选地能够成形或形成 以使得限定在重叠的片材之间的片材中的至少一个和焊接线的至少一部分被弯曲或三维轮廓。 在实施该方法的优选实施例中,通过将至少一个辐射束引向具有足够功率密度的重叠片材并且足够的时间来焊接片材使得它们基本上完全从前面熔化而将片材重叠和焊接 回到重叠区域。 结果,片材形成优选形成或成形的坯料,例如通过成形,深冲压,加氢成型或辊轧成形,使得片材中的至少一个和片的焊接线的一部分是 弯曲或三维轮廓。 在成形或成型之后,片材优选形成制品的至少一部分。

    High-density energy beam welding process and welded structure
    35.
    发明授权
    High-density energy beam welding process and welded structure 失效
    高密度能量束焊接工艺及焊接结构

    公开(公告)号:US5591359A

    公开(公告)日:1997-01-07

    申请号:US278896

    申请日:1994-07-22

    Abstract: The first and second weld areas of respective first and second metallic workpieces of aluminum or aluminum alloy are held in abutment against each other with a surface of the second metallic workpiece being positioned on a positioning guide of the first metallic workpiece. A recess is defined between the positioning guide and the second metallic workpiece. A high-density energy beam such as a laser beam is applied to the first and second weld areas thereby to develop a molten pool therein that grows toward the positioning guide until metallic oxide films formed on the first and second metallic workpieces are forced into the recess by the molten pool. As no metallic oxide films are present in a weld joint between the first and second metallic workpieces, the resultant welded structure is of a high mechanical strength.

    Abstract translation: 铝或铝合金的相应的第一和第二金属工件的第一和第二焊接区域彼此抵靠,第二金属工件的表面位于第一金属工件的定位引导件上。 在定位引导件和第二金属工件之间限定凹部。 将诸如激光束的高密度能量束施加到第一和第二焊接区域,从而在其中形成朝向定位引导件生长的熔池,直到形成在第一和第二金属工件上的金属氧化物膜被迫进入凹部 通过熔池。 由于在第一和第二金属工件之间的焊接接头中不存在金属氧化物膜,所得到的焊接结构具有高的机械强度。

    Laser system and method for selectively trimming films
    36.
    发明授权
    Laser system and method for selectively trimming films 失效
    用于选择性修整薄膜的激光系统和方法

    公开(公告)号:US5569398A

    公开(公告)日:1996-10-29

    申请号:US343779

    申请日:1994-11-22

    Abstract: A laser system and processing method exploits the absorption contrast between the materials from which a film and an underlying substrate (26) are made to effectively remove the film from the substrate. Laser output in a wavelength range of 1.2 to 3 .mu.m optimizes the absorption contrast between many resistive or conductive film materials (e.g., metals, metal alloys, polysilicon, polycides, or disilicides) and integrated circuit substrates (e.g., silicon, gallium arsenide, or other semi-conductors) and permits the use of laser output in a wider range of energy or power levels and pulse widths, without risking damage to the substrates or adjacent circuit structures. Existing film processing laser systems can be readily modified to operate in the 1.2 to 3 .mu.m range. The laser system and processing method also exploit a wavelength range in which devices, including any semiconductor material-based devices affected by conventional laser wavelengths and devices having light-sensitive or photo-electronic portions integrated into their circuits, can be effectively functionally trimmed without inducing malfunctions or function shifts in the processed devices, thus allowing faster functional laser processing, easing geometric restrictions on circuit design, and facilitating production of denser and smaller devices.

    Abstract translation: 激光系统和处理方法利用材料之间的吸收对比度,其中膜和下面的基底(26)被制成以有效地从基底去除膜。 在1.2至3微米的波长范围内的激光输出优化了许多电阻或导电膜材料(例如金属,金属合金,多晶硅,多硅化物或二硅化物)和集成电路基板(例如硅,砷化镓, 或其他半导体),并且允许在更宽的能量或功率水平和脉冲宽度范围内使用激光输出,而不会损坏基板或相邻电路结构。 现有的胶片处理激光系统可以容易地修改为在1.2到3μm的范围内操作。 激光系统和处理方法还利用了波长范围,其中包括受传统激光波长影响的任何基于半导体材料的器件和具有集成到其电路中的光敏或光电子部分的器件的器件可以被有效地功能地修整而不诱导 处理的设备中的故障或功能偏移,因此允许更快的功能激光处理,减轻对电路设计的几何限制,并促进生产更致密和更小的设备。

    Flangeless fuel tank
    38.
    发明授权
    Flangeless fuel tank 失效
    无法兰的油箱

    公开(公告)号:US5454480A

    公开(公告)日:1995-10-03

    申请号:US140664

    申请日:1993-10-21

    Abstract: A flangeless fuel tank formed of two interfitted cup-shaped tank halves welded along the overlapping portion of the tank halves. Locating protrusions stamped into each tank half provide registration of the halves prior to welding. Spacing dimples stamped into at least one of the fuel tank halves provide a vent space for escaping gases from vaporized coatings.

    Abstract translation: 一个无凸缘的燃料箱,由两个相互配合的杯形半罐形成,沿着半部重叠部分焊接。 定位在每个罐半部中冲压的凸块在焊接之前提供了两半的对准。 压入至少一个燃料箱半部的间隔凹坑提供了一个排放空间,用于从蒸发的涂层中排出气体。

    Apparatus and method for producing a printing screen
    39.
    发明授权
    Apparatus and method for producing a printing screen 失效
    用于制造印刷丝网的装置和方法

    公开(公告)号:US5444212A

    公开(公告)日:1995-08-22

    申请号:US191482

    申请日:1994-02-04

    Abstract: An apparatus for inking or printing on the surface of an item, such as a badge or emblem, is described. The apparatus incorporates a number of sub-systems including: an apparatus for holding and positioning blank screen material; a laser ablation system for producing the desired hole pattern in the blank screen material to form screens; a print/ink station; a table assembly for supporting a plurality of labels or emblems and moving such labels or emblems sequentially to the print station; and an apparatus for moving the screens to the print/ink station. The apparatus also includes heater for drying the ink after the printing/inking step is completed. The apparatus for producing the patterns includes a laser, mirrors for moving the beam in the x and y directions, and optics for focusing the beam on the blank screen material. The inking station includes an ink tray, a reciprocating squeegee and blades for wiping ink from the leading edges of the squeegee after the squeegee passes over the pattern.

    Abstract translation: 描述了用于在诸如徽章或徽章的物品的表面上着墨或印刷的装置。 该装置包括许多子系统,包括:用于保持和定位空白屏幕材料的装置; 激光烧蚀系统,用于在坯料筛网材料中产生所需的孔图形以形成筛网; 印刷/墨水站; 用于支撑多个标签或标志并将这样的标签或标志顺序地移动到打印站的工作台组件; 以及用于将屏幕移动到打印/墨水站的装置。 该装置还包括在打印/上墨步骤完成之后干燥油墨的加热器。 用于产生图案的装置包括激光器,用于在x和y方向上移动光束的反射镜,以及用于将光束聚焦在空白屏幕材料上的光学器件。 上墨站包括墨盘,往复式刮刀和用于在刮板通过图案之后从刮板的前缘擦拭墨的刀片。

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