Process for the production of a shaped parts from pieces of sheet metal
of different thicknesses
    15.
    发明授权
    Process for the production of a shaped parts from pieces of sheet metal of different thicknesses 失效
    用于从不同厚度的金属片制造成形部件的方法

    公开(公告)号:US4827100A

    公开(公告)日:1989-05-02

    申请号:US135194

    申请日:1987-12-18

    Abstract: A process for making a shaped member from sheet metal pieces (37,38) of different thicknesses. In the process flat sheet metal pieces (37,38) are butt welded at their cut edges by laser beam welding. Then the unit, welded together from a number of sheet metal pieces (37,38) of different thickness, are converted into a shaped member by pressing or deep drawing. Since the material of sheet metal pieces (37,38) is not much affected by laser beam welding and the laser-beam-welded joint (39) does not expand much, the joint (39) has no adverse effect on shaping, nor is any anti-corrosion protection, for example, of zinc lost during laser beam welding.

    Abstract translation: 一种由不同厚度的金属片(37,38)制成成形件的方法。 在此过程中,平板金属片(37,38)通过激光束焊接在其切割边缘处对接焊接。 然后,从多个不同厚度的金属板(37,38)焊接在一起的单元通过压制或深拉成型而被转换为成形构件。 由于金属片(37,38)的材料不受激光束焊接的影响较大,激光束焊接接头(39)不膨胀太多,所以接头(39)对成型没有不利影响, 任何防腐蚀保护,例如在激光束焊接过程中锌损失。

    Selective laser removal of dielectric coating
    19.
    发明授权
    Selective laser removal of dielectric coating 有权
    选择性激光去除电介质涂层

    公开(公告)号:US6060683A

    公开(公告)日:2000-05-09

    申请号:US157987

    申请日:1998-09-22

    Inventor: Calixto Estrada

    Abstract: A process for selectively removing a dielectric layer from a portion of a panel to create a coated and an uncoated region, the process including (a) applying a laser-termination bead on the panel to separate a first region corresponding to the coated region from a second region corresponding to the uncoated region; (b) applying a dielectric coating over the panel and the laser-termination bead; (c) cutting the dielectric layer along the laser-termination bead with a laser beam; and (d) peeling away the dielectric layer from the second region. The panel may be a direct radiography panel; the dielectric layer may be a polymer such as parylene; the laser-termination bead may be an epoxy; and/or the laser may be an excimer laser.

    Abstract translation: 一种用于从面板的一部分选择性地去除电介质层以产生涂覆和未涂覆区域的方法,所述方法包括(a)在面板上施加激光终止珠以将对应于涂覆区域的第一区域与 第二区域对应于未涂覆区域; (b)在所述面板和所述激光终端珠上方施加电介质涂层; (c)用激光束沿激光终端珠切割电介质层; 和(d)从第二区域剥离电介质层。 面板可以是直接放射照相面板; 电介质层可以是聚对二甲苯等聚合物; 激光终止珠可以是环氧树脂; 和/或激光可以是准分子激光器。

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