公开(公告)号：US6078021A

公开(公告)日：2000-06-20

申请号：US921291

申请日：1997-08-29

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K26/08 ,  B23K26/24 ,  B23K26/28 ,  B23K26/00

CPC classification number: B23K26/106 ,  B23K26/0823 ,  B23K26/244 ,  B23K26/28

Abstract: A laser welding apparatus is for laser welding an inner joint between first and second bellows diaphragms. The apparatus preferably includes a first clamp having an opening therein and having portions adjacent the opening defining a first clamping surface; and a second clamp having portions defining a second clamping surface, and wherein the first and second clamps are relatively movable to clamp the first and second metal bellows diaphragms together between the first and second clamping surfaces so that the openings in the bellows diaphragms are generally aligned with the opening in the first clamp. The apparatus also preferably includes a laser for generating a laser beam, and a beam directing element positioned in the opening of the first clamp and the openings of the first and second bellows diaphragms for directing the laser beam to weld the inner joint between the first and second bellows diaphragms. The opening of the first clamp and the recess of the second clamp are preferably sized to expose a predetermined radially inwardly extending portion of the first and second bellows diaphragms to facilitate welding with the laser beam. In addition, the apparatus also preferably includes a rotating drive arrangement for relatively rotating the first and second clamps, and the laser beam directing means to weld the inner joint. A non-metallic spacer may be positioned between the bellows diaphragms.

Abstract translation: 激光焊接设备用于激光焊接第一和第二波纹管隔膜之间的内接头。 该装置优选地包括其中具有开口的第一夹具，并且具有邻近开口的部分限定第一夹紧表面; 以及第二夹具，其具有限定第二夹紧表面的部分，并且其中所述第一和第二夹具可相对移动以将所述第一和第二金属波纹管隔膜在所述第一和第二夹紧表面之间夹紧在一起，使得所述波纹管隔膜中的开口大致对准 在第一个夹子中打开。 该装置还优选地包括用于产生激光束的激光器和定位在第一夹具的开口中的光束引导元件以及第一和第二波纹管光阑的开口，用于引导激光束焊接第一和第 第二波纹管隔膜。 优选地，第一夹具的开口和第二夹具的凹部的尺寸设定成暴露第一和第二波纹管隔膜的预定的径向向内延伸的部分，以便于与激光束的焊接。 此外，该装置还优选地包括用于使第一和第二夹具相对旋转的旋转驱动装置和用于焊接内部接头的激光束引导装置。 非金属间隔件可以位于波纹管隔膜之间。

公开(公告)号：US5676865A

公开(公告)日：1997-10-14

申请号：US519841

申请日：1995-08-25

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K26/00 ,  B23K26/06 ,  B23K26/20 ,  B23K26/22 ,  B23K26/32 ,  B23K33/00 ,  H05K1/18 ,  H05K3/00 ,  H05K3/32 ,  H05K3/36 ,  H05K3/40

CPC classification number: H05K3/328 ,  B23K26/06 ,  B23K26/22 ,  B23K33/00 ,  B23K2203/12 ,  H05K1/189 ,  H05K2203/107 ,  H05K3/4015 ,  H05K3/4092

Abstract: A method for forming a welded joint as between first and second electrical conductive members by the use of a radiant energy source, wherein the first member has a higher reflectivity with respect to the radiant energy than the second member, the method comprising the steps of preselecting respective areas of the first and second members for the welded joint, forming an aperture extending fully through a portion of the selected area of the first member, the portion being selected to be of an area less than the selected area of the second member, placing the first member in overlying relation to the second member with the first member portion disposed interiorly of the perimeter of the selected area of the second member and issuing the radiant energy directly onto the first member and concurrently through the first member apertured portion onto the second member. Assemblies for effecting welding operations are provided.

Abstract translation: 一种通过使用辐射能源在第一和第二导电构件之间形成焊接接头的方法，其中所述第一构件相对于所述辐射能具有比所述第二构件更高的反射率，所述方法包括以下步骤：预选 用于焊接接头的第一和第二构件的相应区域，形成完全延伸穿过第一构件的选定区域的一部分的孔，该部分被选择为小于第二构件的选定区域的区域，放置 所述第一构件与所述第二构件重叠，所述第一构件部分设置在所述第二构件的选定区域的周边的内部，并且将所述辐射能量直接地发射到所述第一构件上，并且同时通过所述第一构件有孔部分到所述第二构件 。 提供了用于实现焊接操作的组件。