Laser engraving machines, due to their high precision and non-contact processing characteristics, are suitable for engraving various materials. However, their specific applicability depends on the type of laser (such as CO₂ laser, fiber laser, ultraviolet laser, etc.). The following are common material classifications suitable for laser engraving and precautions:

Non-metallic materials (CO₂ laser is the most suitable)

Wood & Plywood

Suitable for carving detailed patterns, characters and reliefs.

Note: Wood containing resin (such as pine) may have black edges. The power and speed need to be adjusted.

Acrylic (organic glass

It can be carved or cut, with smooth edges, and is often used for signs and light boxes.

Transparent acrylic has a frosted effect after engraving, and colored acrylic has good contrast.

Leather

It is used for pattern engraving on wallets, belts and shoe uppers. The edges will be slightly carbonized.

Fabrics & Textiles

Cotton, linen, canvas and other materials can be carved with complex patterns, while chemical fibers may melt at the edges (testing is required).

Paper & cardstock

It is suitable for fine designs such as greeting cards and bookmarks, but it is flammable and requires low power.

Rubber & Silicone

It is often used for seals and mold marking. Pay attention to ventilation (it may produce an unpleasant smell).

Stone & Glass

Marble and tiles can be engraved with grayscale images. The glass needs low power to avoid cracking.

2. Metal materials (requiring fiber optic/ultraviolet laser or coating treatment)

Stainless steel & Aluminum

High-power fiber lasers are required or a laser marking coating should be sprayed first (direct engraving may be relatively shallow).

It is often used for industrial parts and nameplates.

Anodic aluminum oxide

It can be directly engraved to present high-contrast marks.

Titanium alloy & coated metals

It is suitable for medical devices and jewelry engraving.

3. Other special materials

Two-color board (laminated plastic)

The surface layer and the bottom layer are of different colors, and after engraving, they present contrasting color text/patterns.

Ceramic

It can be engraved but the power needs to be controlled to avoid chipping.

Food (such as chocolate, biscuits

Food-grade safe laser machines are needed for personalized decoration.

Materials not suitable for laser engraving

Chlorine-containing materials (such as PVC

The release of toxic chlorine gas endangers equipment and health.

Polycarbonate (PC

It melts easily, turns yellow and may burn.

Mirror/reflective metal

Reflected lasers may damage the machine (special treatment is required).

Flammable materials (such as foam, certain plastics

High risk, test carefully.

Selection suggestions

First, test: Different material components (such as additives, coatings) may affect the effect.

Parameter adjustment: Power, speed and frequency need to be optimized according to the thickness and hardness of the material.

Safety first: Ensure ventilation and avoid toxic smoke. Wear protective glasses.

Laser engraving machines have high flexibility, but reasonable material selection and parameter setting are the key!