Abstract
Laser welding can be scaled down even to very small dimensions, where other welding techniques are not applicable. A high processing speed, high precision, good process control and low penetration depth with deep penetration welding even at thicknesses of some 100 micron are the benefits of micro laser welding. Process developments, using pulsed and cw laser, are shown. Welding of similar and dissimilar materials like aluminium, steel and copper is shown. Application examples for the processes for different products are given. The environmental background is due to the substitution of processes showing a higher pollution or due to the products itself.Laser welding can be scaled down even to very small dimensions, where other welding techniques are not applicable. A high processing speed, high precision, good process control and low penetration depth with deep penetration welding even at thicknesses of some 100 micron are the benefits of micro laser welding. Process developments, using pulsed and cw laser, are shown. Welding of similar and dissimilar materials like aluminium, steel and copper is shown. Application examples for the processes for different products are given. The environmental background is due to the substitution of processes showing a higher pollution or due to the products itself.
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