{"id":25926,"date":"2025-12-07T03:37:23","date_gmt":"2025-12-07T03:37:23","guid":{"rendered":"https:\/\/yonglihaomachinery.com\/?p=25926"},"modified":"2025-12-07T03:37:23","modified_gmt":"2025-12-07T03:37:23","slug":"types-of-laser-cutters-explained-fiber-co2-more","status":"publish","type":"post","link":"https:\/\/yonglihaomachinery.com\/fr\/types-of-laser-cutters-explained-fiber-co2-more\/","title":{"rendered":"Types de d\u00e9coupeuses laser expliqu\u00e9s\u00a0: fibre, CO2 et autres"},"content":{"rendered":"

Yonglihao Machinery offers laser design services<\/strong><\/a>. The laser type is a key factor in your cutting results. It often decides if the cut is clean or if you fight slag, burn marks, or long cycles.<\/p>\n

Two parts might have the same thickness. But results differ if absorption, reflectivity, or heat flow do not match the laser source. This guide has a simple goal. We will help you understand the main laser cutter types. You will learn what each does best and how to make a practical choice.<\/p>\n

What Is a Laser Cutter?<\/h2>\n

A laser cutter is a CNC system. It focuses a laser beam to melt, vaporize, or ablate material. This creates a kerf, or cut width.<\/p>\n

“Laser type” usually refers to the source, like fiber, CO\u2082, crystal, or diode. This choice defines the wavelength and beam traits. It also dictates how energy works with different materials.<\/p>\n

The same machine performs differently based on the material. It depends on how well the material absorbs the wavelength. It also depends on if the beam stays focused through the thickness.<\/p>\n

Core Performance Factors<\/h2>\n

Wavelength and absorption:<\/strong><\/b> Good absorption makes the process stable. Poor absorption forces higher energy use. This makes edge consistency harder. Reflectivity and heat flow amplify these differences in metals.<\/p>\n

Beam quality and focusing:<\/strong><\/b> A “tighter” spot means a narrower cut. It makes fine details stable. Small holes and narrow slots form better. On thick plates, energy density affects the cut taper and bottom dross.<\/p>\n

Process ecosystem:<\/strong><\/b> Many factors decide long-term stability. These include assist gas, nozzle position, slag removal, fume extraction, and cooling. You need more than just a good cut on day one.<\/p>\n

Main Types of Laser Cutters<\/h2>\n

Fiber Laser Cutter<\/h3>\n

Fiber lasers use the near-infrared spectrum (around 1.06 \u03bcm). Doped fiber delivers and amplifies the beam. This creates a high energy-density spot. They work best for metal cutting. They offer speed, repeatability, and crisp edges.<\/p>\n

Fiber is often the first choice for stainless steel, carbon steel, aluminum, copper, or brass. It reaches a stable processing window easily for these metals. It handles high-volume work well. It is great for dense hole patterns, narrow slots, and complex contours. It also suits structural parts where low heat distortion matters.<\/p>\n

The limit is rarely “can it cut.” The question is usually about cleanliness and cost. CO\u2082 is often better for wood, acrylic, leather, and textiles. It gives a better visual edge. Using fiber for those jobs often requires more trial cuts. Cosmetic consistency is harder to maintain.<\/p>\n

\"Fiber<\/p>\n

CO\u2082 Laser Cutter<\/h3>\n

CO\u2082 lasers run at 10.6 \u03bcm. Organic materials and polymers absorb this wavelength well. This makes CO\u2082 very good for non-metal cutting and engraving. Wood, cardboard, leather, fabrics, and acrylic get natural edges and sharp details.<\/p>\n

Choose CO\u2082 for engraving resolution and visual texture. It is common for signage, display parts, tooling pads, and packaging die boards. It controls transparent materials well. You still need good fume extraction to avoid smoke stains.<\/p>\n

Metal processing is harder with CO\u2082. The optical path is sensitive to dirt and alignment. We stress maintenance and cooling for service work. Otherwise, engraving contrast drifts and edge color varies.<\/p>\n

\"CO\u2082<\/p>\n

Nd:YAG \/ Nd:YVO (Crystal) Laser<\/h3>\n

These solid-state systems often use pulsed mode with high peak power. They are not for cutting large sheets. They excel at fine detail with controlled heat. This includes precision marking, micro-features, and surface work.<\/p>\n

Crystal lasers are common in electronics and medical devices. Use them for mark clarity and surface reaction control. They pair with refined pulse strategies for stable surfaces, not speed.<\/p>\n

Crystal lasers are often less economical than fiber for general metal cutting. They are special-purpose tools. They work well in the right window but are not a universal choice.<\/p>\n

\"Crystal<\/p>\n

Direct Diode Laser<\/h3>\n

Direct diode lasers make light from semiconductor diodes. They offer high efficiency and a compact design. They work well for thin sheets and some plastics. The machine needs strong beam shaping.<\/p>\n

Performance depends heavily on the system. Beam quality varies by manufacturer. Direct diode may not be better than fiber for fine cuts or thick plates. Test with sample parts before you choose.<\/p>\n

\"Direct<\/p>\n\n\n\n\n\n\n\n\n
Laser type<\/th>\nBest fit<\/th>\nTypical strengths<\/th>\nCommon constraints<\/th>\n<\/tr>\n<\/thead>\n
Fiber<\/td>\nMetals (incl. reflective)<\/td>\nFast metal cutting, tight kerf, repeatable geometry<\/td>\nLess efficient on many non-metals<\/td>\n<\/tr>\n
CO2<\/td>\nNon-metals + engraving<\/td>\nStrong engraving, clean cuts on organics\/polymers<\/td>\nReflective metal window is harder<\/td>\n<\/tr>\n
Nd:YAG\/Nd:YVO<\/td>\nMarking\/micro work<\/td>\nPulse control, precise marking, specialized tasks<\/td>\nNot the most economical for broad cutting<\/td>\n<\/tr>\n
Direct diode<\/td>\nThin metals \/ select plastics<\/td>\nHigh efficiency, compact design<\/td>\nBeam quality\/thickness capability varies<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

How to Choose the Right Laser Type<\/h2>\n

Sort by material first. Then focus on your target output. Fiber is usually best for metal parts and speed. CO\u2082 reduces trial-and-error for wood, acrylic, or fabrics.<\/p>\n

Next, look at the specific output you need. Are you cutting load-bearing parts? Then kerf and dross matter. Are you making display parts? Then texture and edge color matter. Priorities shift based on the outcome. This is why people often choose the wrong type.<\/p>\n

Key decision inputs:<\/p>\n