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Fiber laser marking machines are highly favored in industrial marking applications due to their high precision, fast marking speed, maintenance-free operation, and wide material compatibility. Below are the types of materials suitable for fiber laser marking, along with typical application scenarios:
✅ 1. Suitable Material Types
1. Metal Materials (Best Compatibility)
Fiber laser marking machines perform exceptionally well on metal surfaces, delivering clear, high-contrast, and permanent markings.
Material | Application Examples |
Stainless Steel | Tool engraving, industrial nameplates, kitchenware, mobile phone casings |
Aluminum & Aluminum Alloys | Auto parts, laptop housings (anodized aluminum) |
Copper / Brass / Red Copper | Electronic connectors, decorative parts, terminal markings |
Iron / Cast Iron | Equipment nameplates, machine housings |
Magnesium Alloy | Internal components of mobile phones and laptops |
Titanium Alloy | Medical instruments, aircraft components |
Precious Metals (Gold, Silver) | Jewelry engraving, custom logos, QR code marking |
Coated Metals | Electronic components, screws, springs, fasteners |
2. Select Non-Metal Materials (Conditional Compatibility)
⚠️ Fiber lasers are not suitable for all non-metallic materials. Below are supported or partially supported types:
Material | Compatibility | Notes |
ABS, PC, PE, PPS and other engineering plastics | ✅ Supported (better with MOPA lasers) | Adjustable pulse width/frequency enhances contrast |
Black Plastics | ✅ Good marking performance | |
White / Transparent Plastics | ⚠️ Poor performance; UV or CO₂ laser recommended | |
Coated Materials (e.g. Anodized Aluminum) | ✅ Supported; can achieve high contrast like white on black | |
Paper / Wood / Acrylic / PVC / Leather | ❌ Not recommended | CO₂ or UV lasers are more suitable |
Summary
Fiber laser marking machines are ideal for marking a wide range of metals like stainless steel, aluminum, copper, iron, and titanium, delivering high-contrast and permanent results. They also perform well on some dark engineering plastics, especially with MOPA lasers. However, they are not suitable for transparent plastics, wood, paper, or leather—CO₂ or UV lasers are better choices for those. Overall, fiber lasers are best for metal marking and selectively effective on certain non-metal materials.