Laser engraving technique
Laser engraving is a technique used to mark materials using a laser beam. It's employed across various industries including automotive, medical, and manufacturing, and also for artistic purposes. The process is favored for its ability to create durable, high-contrast markings.
This article will explore what laser engraving is, its functionality, suitable materials, and recommendations for beginner-friendly, affordable laser engraving machines.
What Is Laser Engraving?
laser engraving products is a non-contact method that creates visible markings on various materials using a focused laser beam. The beam can be as small as a few microns, allowing for intricate designs. It’s commonly used for creating artistic designs, industrial labels, and personalized items. laser engraving products produces high contrast between engraved and non-engraved areas.
Types of Lasers Used
Laser engraving typically uses CO2 or fiber lasers. CO2 lasers are ideal for nonmetals like wood, stone, and plastics, while fiber lasers are better for metals due to their suitable wavelength absorption.
How It Works
The process involves a laser beam applying high heat to a material, controlled by a computer program to create a specific pattern. The laser can remove material by melting, vaporizing, or ablation, resulting in either a raised, indented, or darkened pattern.
Factors influencing the engraving process include the material's reflectivity, density, and state transition temperatures.
Common Applications
Laser engraving is used in industries requiring durable, high-contrast markings, such as automotive, medical, and aerospace. It’s used for signage, product marking, artistic engraving, and more.
Types of Engraving
Laser Ablation: Rapidly heats and vaporizes the material to create a pattern.
Concave Engraving: Removes material to create an indented design.
Convex Engraving: Removes surrounding material to create a raised design.
Engraveable Materials
Marble and Granite: For tombstones and awards.
Stone and Brick: For artistic products.
Wood: Popular for signs and artistic designs.
Glass: For awards and trophies.
Acrylic: Lightweight substitute for glass, used in awards.
Metal: For durable part identification.
Cardboard and Paper: For artistic items like cards.
Fabric: For artistic clothing designs.
Leather: For personalized items like wallets and belts.