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    • 3. 发明授权
    • Method for manufacturing resin molding
    • 树脂成型的制造方法
    • US08647464B2
    • 2014-02-11
    • US13021681
    • 2011-02-04
    • Yoshihiro ZaitsuKazuaki HokodaTatsuya Umeyama
    • Yoshihiro ZaitsuKazuaki HokodaTatsuya Umeyama
    • B32B37/00
    • B29C65/1635B29C65/1661B29C65/1667B29C65/1687B29C65/169B29C66/1142B29C66/301B29C66/3472B29C66/542B29C66/71B29C66/73343B29C66/73921B29C66/8322B29C66/83221B29C66/91411B29C66/91443B29C66/91645B29C66/91931B29C66/91941B29C66/91951B29C66/93441B29K2995/0031B29L2031/747F21S41/29F21S43/27B29K2025/08B29K2033/12B29K2069/00
    • A method for manufacturing a resin molding that uses a laser beam can provide a high level of adhesion, an excellent appearance, and can include very strong welded portions. The method can include preparing a light-transmitting resin member having a protruding portion formed on a rear surface of the light-transmitting resin member and having an end surface, the protruding portion having both side surfaces having asymmetric inclination angles with respect to the normal of the end surface of the protruding portion. The method can also include arranging and pressing together the end surface of the protruding portion that is a welded region of the light-transmitting resin member, and a welded region of a corresponding light-absorbing resin member so that they are opposed to each other. A laser beam can be emitted from a laser light source to be incident on a surface of the light-transmitting resin member while the laser beam is refracted. The method can also include repeatedly irradiating the laser beam onto the welded regions to heat and fuse the entire welded regions to weld the light-transmitting resin member and the light-absorbing resin member while opposed to each other and pressed together, wherein the inclination angle of the side surface of the protruding member near the laser light source is equal to or more than a travel angle of the refracted laser beam.
    • 使用激光束的树脂成型体的制造方法可以提供高水平的粘附性,优异的外观,并且可以包括非常强的焊接部分。 该方法可以包括制备透光树脂构件,该透光树脂构件具有形成在透光树脂构件的后表面上并具有端面的突出部分,该突出部分的两个侧表面具有相对于 突出部的端面。 该方法还可以包括将作为透光树脂构件的焊接区域的突出部分的端表面和相应的光吸收树脂构件的焊接区域彼此相对布置和压在一起。 当激光束被折射时,激光束可以从激光源发射入射到透光树脂构件的表面上。 该方法还可以包括将激光束重复地照射到焊接区域上,以加热和熔化整个焊接区域,以将透光树脂构件和光吸收树脂构件彼此相对并焊接在一起,其中倾斜角 在激光光源附近的突出部件的侧表面等于或大于折射激光束的行进角度。