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Updated: Feb 14, 2026
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Failure of Cleaning Verification in Pharmaceutical Industry Due to Uncleanliness of Stainless Steel Surface
Published on: August 11, 2017
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Influence of Laser Marking Parameters on Color Generation in AISI 304 Stainless Steel
Lyubomir Lazov1, Nikolay Angelov1, Jurijs Dehtjars1
1Rezekne Academy, Riga Technical University, LV-1658 Riga, Latvia.
Materials (Basel, Switzerland)
|February 13, 2026
Summary
This study explores fiber laser color marking on stainless steel, revealing how processing parameters like speed and raster step influence surface roughness, color, and saturation. Findings establish key dependencies for predictable, high-quality laser-marked finishes.
Area of Science:
- Materials Science
- Laser Physics
- Surface Engineering
Background:
- Laser marking is a versatile technique for material modification.
- Achieving specific colors on stainless steel via laser marking requires precise control over process parameters.
- Understanding the interplay between laser parameters and surface morphology is crucial for predictable outcomes.
Purpose of the Study:
- To investigate the impact of key processing parameters on fiber laser color marking of AISI 304 stainless steel.
- To establish dependencies between surface characteristics (roughness, color, chromatic distance) and laser parameters (speed, raster step).
- To compare color variations across different surface morphologies generated by single, double, and triple laser shots at various angles.
Main Methods:
- Utilized a fiber laser system for color marking experiments on AISI 304 stainless steel.
- Varied processing parameters including speed, raster step, scan overlap, and processing angles (0°, 60°, 90°, 120°).
- Characterized resulting surfaces for morphology, roughness, color, color difference, and chromatic distance using a defined methodology.
Main Results:
- Established clear dependencies for surface roughness, resulting color, color difference, and chromatic distance based on raster step and scanning speed.
- Observed distinct surface morphologies resulting from single, double (0°, 90°), and triple (0°, 60°, 120°) shot markings.
- Quantified and compared color variations and saturation trends across different morphological surfaces and parameter settings.
Conclusions:
- Processing parameters significantly influence the color and surface characteristics of laser-marked stainless steel.
- The methodology allows for predicting and controlling color outcomes by adjusting raster step and scanning speed.
- The study provides a foundation for optimizing laser parameters to achieve desired aesthetic and functional properties in color laser marking.
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