Custom markings as clients request with Fiber Laser Marking

As a profeeesional manufacture with more than 30 years experience , we can custom markings as clients request with Fiber Laser Marking(specifically known as Laser Annealing Marking).Laser Annealing Mark achieved by a Fiber Laser Marking System on stainless steel. It is a high-quality, permanent, and clean marking solution.

Analysis and Key Identifiers

1. Material and Effect:
   · Base Material: The reflectivity and texture indicate the base material is Stainless Steel.
   · Mark Color: The mark is a deep black, creating a high contrast with the natural metal color.
   · Surface Texture: The marked area is perfectly smooth and flush with the original surface; there is no tactile feel. This is the most characteristic feature of laser annealing.
2. Process Principle:
   · This process uses a Fiber Laser (wavelength 1064nm).
   · The laser beam is focused on the metal surface, and with precise control of power and speed, it heats the surface layer to a specific temperature (below its melting or vaporization point).
   · In the presence of air, the heated metal surface undergoes rapid oxidation, forming an extremely thin and dense oxide layer (e.g., Black Iron Oxide, Fe₃O₄).
   · The thickness of this oxide layer causes light interference and absorption, making it appear black (or other colors) to the human eye. The black effect in your image is the most common and classic result.

Key Advantages of This Process

· Permanence: The oxide layer is a transformation of the material itself, making the mark highly wear-resistant, corrosion-resistant, and non-fading.
· High Contrast: Creates a clear, sharp, and professional-looking black mark on a polished stainless steel surface.
· Non-Contact and Non-Destructive: The process introduces no mechanical stress or physical damage to the part.
· Smooth Surface Finish: Since no material is removed, the mark is flush with the surface. This prevents bacteria entrapment and makes it easy to clean, which is critical for medical devices and food processing equipment.
· High Precision and Flexibility: It can easily produce complex graphics, very small text, QR codes, and serial numbers.

Common Applications

This technique is widely used in industries with high requirements for hygiene, durability, and aesthetics:

· Medical Devices: Marking logos, models, and UDI (Unique Device Identification) codes on surgical tools, implants, and equipment housings.
· Food & Beverage Processing Equipment: Marking on stainless steel tanks, pipes, and valves.
· Precision Components: Traceability marks on parts in the automotive and aerospace industries.
· High-End Consumer Goods: Branding and decorative patterns on stainless steel water bottles, kitchenware, and watches.