High speed joining process by laser shock forming for the micro range
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Date
2014
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Abstract
The importance to implement more functionality on the same space pushes
miniaturization and makes hybrid joints under various conditions, also in the micro range,
necessary. Conventional joining processes, which are used in macro range, cannot be
easily transferred to micro range dimensions. In this work a new high speed joining
method for the micro range is presented, which is realized by a plastic forming process
based on TEA-CO2-Laser induced shockwaves. In a first step it is shown how sheet-sheet
joints can be realized with this method. The experimental results illustrate the possibilities
as well as the limits of the joining process by laser shock forming. Also the possible
defects which can occur during the joining process are presented. Especially fracture of
material at the edge. This is explained by the sharp edges in the joining area, which are
caused by the production process of the specimen.
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Keywords
High speed forming, Joining by forming, Laser shock forming