Laser Marking and Engraving Service By Laser Impressions Inc.
Posted on: February 10, 2012 | No responses
Laser Engraving Services
Laser marking is a process of creating surface contrast using a range of physical effects, whereas laser engraving creates surface contrast by removing certain (typically .005 to .02″) depth of material.
Physical effects, enabling laser marking, include:
- Surface oxidation at laser induced elevated temperatures (marking stainless steel, titanium, wood, and most plastics.)
- Ablation of low thermally conductive coating on substrate with high thermal conductivity (marking anodized aluminum, silicon nitride)
- Thermally induces surface cracks (marking glass)
- Change of surface roughness after local melting and re-solidification ( marking Al2O3/SiN ceramics, silicon, gold, platinum, some plastics)
- Deposition of target material on a marking material (marking quartz wafer using ceramic target and inverted material transfer)