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ALE glossary

Send mail to: sales@appliedlaser.co.uk with questions or comments about this web site. Copyright Applied Laser Engineering Ltd 2002

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Multi Laser System.

 

ALE laser engraving machines can be used with multiple lasers, either of the same

type or a combination of different types. Different wave lengths, or pulsing characteristics from separate laser sources may give beneficial outcomes for engraving. Selective absorbency may well be achieved by the laser wave length chosen. Clean dry engraving, particularly into metals or ceramics, might well be achieved by short pulse length laser sources. Bulk removal can be achieved by longer pulse, higher powered lasers.

Different wave lengths, or pulsing characteristics from separate laser sources, may also give beneficial outcomes for secondary processes, pre or post engraving. For

example: cleaning, hardening, glazing or any other laser stimulated surface metamorphosis, so, multi laser engraving machines can provide improved performance, when compared to a single laser system, with respect to engraving and other secondary processes.

 

Local Laminar Engraving

This is a subset of Hop and Drop Engraving, HADE, whereby DX is only added to the HEL repetitively and cumulatively. DX is typically 3 EPR's and will be added repetitively, typically for six times. So a typical cycle of DX will be 0, 3, 6, 9, 15, which will give rise to a total spread of 15 EPR'S. Real time look up tables are used to control the linearity of displacement and power over such a wide DX.

Laminar, Local Laminar

Laminar, Local Laminar is laminar engraving whereby in each engraving pass the HADE strategy is used and in particular, the Local Laminar subset. This mode has the simple advantage over a single pass HADE mode or Local Laminar, in that the laser focus and laser parameter set cab be changed from one pass to the next

 

 

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ALE GLOSSARY - Page 6