Method for laser welding metal mask and metal mask
A metal mask, laser welding technology, applied in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problem of low welding quality of metal mask
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Embodiment approach 1
[0031] In the first embodiment of the present application, a metal mask is provided, such as Figure 2 to Figure 3 As shown, the metal mask includes a metal film 1 and a metal frame 2, and the metal film 1 and the metal frame 2 are fixed together by laser welding. The metal film 1 and the metal frame 2 are welded by laser to form a welding track.
[0032] The cross-section of the metal thin film 1 can generally be rectangular or other shapes, its thickness can be 5-100um, and it is usually made of metal materials with a small thermal expansion coefficient.
[0033] In this application, the welding track referred to refers to the welding area formed by the welding points produced by laser welding on the object to be welded. In order to achieve a good fixation, this welding area is usually in the shape of a strip, which is referred to as the shape of the welding track.
[0034] Specifically, in this embodiment, the metal film 1 and the metal frame 2 are provided with a plurali...
Embodiment approach 2
[0045] In view of this, the second embodiment of the present application provides a metal mask. The second embodiment is a further improvement of the first embodiment, and its main improvement is that a welding line is further added.
[0046] Specifically, such as Figure 4 As shown, the metal mask plate also includes a plurality of third welding spots 61, and the centers of the plurality of third welding spots 61 are connected to form a ring-shaped and closed third welding line 6, and the third welding spots 61 can be approximately equidistant Distributed on the third welding line 6, the third welding line 6 can be located inside the second welding line 4, in the direction of the horizontal axis 51 and the direction of the vertical axis 52, the third welding point 61 and the second welding point 41 are staggered. .
[0047] Moreover, the third welding line 6 may be located outside the first welding line 3 , and the third welding point 61 and the first welding point 31 may also...
Embodiment approach 3
[0052] The third embodiment of the present application provides a metal mask. The third embodiment is different from the first and second embodiments. The main difference is that the first and second embodiments of the present application In the present application, the boundary of the welding track is defined by means of the first welding line 3 and the second welding line 4; however, in the third embodiment of the present application, the welding track may not have a clear boundary.
[0053] When there is no clear boundary, the line defining the welding point farthest from any side of the welding track to the other side is the boundary line of the welding track, thereby defining the midline 7 along the length direction of the welding track.
[0054] Accordingly, the metal mask plate includes a metal film 1 and a metal frame 2, and the metal film 1 and the metal frame 2 are welded by laser to form a welding track; A plurality of fourth solder joints 81 .
[0055] In this emb...
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