4. Step-by-Step Color Marking Tutorial
Step 1: Prepare the Surface Clean the stainless steel with isopropyl alcohol on a lint-free cloth Wear nitrile gloves — fingerprints and skin oils interfere with oxide formation…
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3. Color Parameter Settings Guide
The following parameters were developed on a 20W MOPA fiber laser with JPT or IPG source. These are starting points — always calibrate on your specific material. Method…
2. The Science: Pulse Width and Color Formation
Thin-Film Interference Explained When the laser creates an oxide layer on stainless steel, that layer acts as a thin film. Light hitting the surface partially reflects off the…
1. How MOPA Technology Enables Color Marking
The Problem with Standard Q-Switched Fiber Lasers A standard Q-switched fiber laser produces pulses with a fixed pulse width — typically 100–200 nanoseconds. You can adjust power, speed,…
5. Common Problems and Solutions
Problem: Mark is too light / insufficient contrast Causes: Speed too high, power too low, focus not on surface, dirty lens Solutions: Reduce speed by 20%, increase power…
4. 304 vs 316 Stainless Steel: Marking Differences
Factor SS304 SS316 Annealing darkness Deeper black Slightly lighter black Energy required Standard +5–10% more Post-passivation mark stability Good Excellent Color ...
2. Marking Process Types on Stainless Steel
Annealing (Oxide Marking) What happens: The laser heats the surface to 400–800°C without removing material. A thin oxide layer forms, creating a dark mark. The surface remains smooth.…
1. Stainless Steel Types and Their Marking Characteristics
304 Stainless Steel The most common stainless steel grade. Contains ~18% chromium and ~8% nickel. Marking behavior: Anneals to a deep black/dark brown consistently Good contrast for both...
Laser Marking on Stainless Steel: Settings, Effects & Best Practices
Last month, a machine shop supervisor called his laser supplier in a panic: "The marks on our 316 surgical instruments are turning brown and rubbing off after passivation."…
Laser Marking on Stainless Steel: Settings, Effects & Best Practices
Primary Keyword laser marking stainless steel ...