Unique corrosion and wear resistant identification tags via LISI™ laser marking

Costa, Lino; Lansford, Kathleen; Rajput, Deepak; Hofmeister, William

doi:10.1016/j.surfcoat.2009.01.028

Cited by 13 publications

(8 citation statements)

References 23 publications

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“…For very thin metals, the process could cause deformation such as curling or wrinkling effects [15]. The laser irradiated material may oxidize or burn off, melt and resolidify, evaporate, ablate, undergo chemical change or changes to its microstructure and physical properties [16]. Understanding these and other limitations can assist in deciding the best marking method for the part.…”

Section: Direct Laser Marking Methodsmentioning

confidence: 99%

“…Laser Induced Surface Improvement-LISI™ laser marking uses a laser beam to melt a pre-placed powder mix of alloying compounds into the surface of the base metal, precisely and according to the desired pattern [16]. It is meant to form an improved alloy with high corrosion resistance and wear properties.…”

Section: Direct Laser Marking Methodsmentioning

confidence: 99%

“…The coating, which is a formulated powder, protects the marking from corrosion and wear. However, this method modifies the chemical composition, microstructure and properties of the base metal surface [16]. It has the potential to create undesirable defects such as pores or unwanted compounds, like brittle intermetallics [16].…”

Section: Direct Laser Marking Methodsmentioning

confidence: 99%

“…However, this method modifies the chemical composition, microstructure and properties of the base metal surface [16]. It has the potential to create undesirable defects such as pores or unwanted compounds, like brittle intermetallics [16]. A reduction of fatigue resistance has also been observed when using a pulsed laser for LISI™ laser marking [16].…”

Section: Direct Laser Marking Methodsmentioning

confidence: 99%

“…It has the potential to create undesirable defects such as pores or unwanted compounds, like brittle intermetallics [16]. A reduction of fatigue resistance has also been observed when using a pulsed laser for LISI™ laser marking [16]. A continuous wave laser may be preferable over a pulsed laser to limit the reduction of fatigue resistance.…”

Section: Direct Laser Marking Methodsmentioning

confidence: 99%

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Parts quality management: Direct part marking of data matrix symbol for mission assurance

Moss

Chakrabarti

Scott

2013

2013 IEEE Aerospace Conference

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Abstract-A United States Government Accountability Office (GAO) review of twelve NASA programs found widespread parts quality problems contributing to significant cost overruns, schedule delays, and reduced system reliability. Direct part marking with Data Matrix symbols could significantly improve the quality of inventory control and parts lifecycle management. This paper examines the feasibility of using direct part marking technologies for use in future NASA programs. A structural analysis is based on marked material type, operational environment (e.g., ground, suborbital, Low Earth Orbit), durability of marks, ease of operation, reliability, and affordability. A cost-benefits analysis considers marking technology (label printing, data plates, and direct part marking) and marking types (two-dimensional machinereadable, human-readable). Previous NASA parts marking efforts and historical cost data are accounted for, including inhouse vs. outsourced marking. Some marking methods are still under development. While this paper focuses on NASA programs, results may be applicable to a variety of industrial environments.

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Section: Direct Laser Marking Methodsmentioning

confidence: 99%

Section: Direct Laser Marking Methodsmentioning

confidence: 99%