Difference between laser engraving machine and CNC engraving machine and selection guide

Which is better, a laser engraver or a CNC engraver? Which is better for your engraving project?handheld laser marking machine Many people who want to buy an engraving machine are confused about this. In fact, there are many differences between these two machines. You can first understand clearly and then choose according to your price needs. Today share the following:

First, the similarities between laser engraving machine and CNC engraving machine

CNC engraving machine and laser engraving machine are both computerized engraving machines, both controlled by computer control system.

CNC engraving machine refers to CNC engraving machine, CNC milling machine, CNC engraving machine or CNC engraving machine, while laser engraving machine refers to laser engraving machine, both of which require a computer to control the engraving. After pre-layout with the computer, the prepared image file or path map is imported into the machine.

So, what is the difference between laser engraving machine and CNC engraving machine?

1, laser engraving machine and CNC engraving machine work in different ways

Laser engraving machine is a kind of equipment based on CNC technology, which utilizes laser thermal energy to engrave materials.little pecker laser engraver The laser is emitted by the laser and focused into a high power density laser beam through the optical circuit system. The light energy of the laser beam causes chemical and physical changes in the surface material to engrave marks, or the light energy burns away part of the material to reveal patterns and text that need to be etched.

CNC engraving machines rely on a high-speed rotating engraving head driven by an electric spindle. Through the tool configured according to the processing material, you can cut the processing material fixed on the host table, carving out a variety of computer-designed flat or three-dimensional patterns. Relief graphics and text can be realized automatically carving operation.

2, laser engraving machine and CNC engraving machine mechanical institutions are different

Laser engraving machine tool is a complete set of optical components, and CNC engraving machine tool is a variety of solid drill. Laser etching machine is to use the high energy of the laser to complete the cutting or engraving of the material, while the CNC engraving machine is to use the high-speed rotating cutter head to cut and engrave the material, so the two forms of the material is different. The object being engraved.

3, laser engraving machine and CNC engraving machine applicable to different materials

Laser engraving machine can be divided into: metal laser engraving machine (fiber laser engraving machine) and non-metal laser engraving machine (CO2 laser engraving machine).

As the name suggests, metal laser engraving machine is suitable for stainless steel, copper, aluminum, carbon steel, iron, aluminum alloy and various metal alloys. Non-metallic laser engraving machine is suitable for marking most non-metallic materials, such as paper packaging, plastic products, label paper, leather cloth, glass ceramics, resin plastics, bamboo and wood products, PCB boards and so on.

CNC engraving machine is suitable for engraving and cutting a variety of materials (except low melting point materials).

4, laser engraving machine and CNC engraving machine with different areas of application

Laser engraving machine can only cut and carve the surface of the object, you can do shadow carving, such as marble tombstone portrait engraving. Laser engraving machine is generally used for clothing sampling, leather industry, footwear, decoration industry, furniture industry, packaging and printing industry, modeling industry, crafts and gifts industry.

CNC engraving machine can cut or make relief, such as some wooden furniture relief engraving.CNC engraving machine is generally applicable to furniture, decoration, musical instruments, handicrafts, molds, signs, souvenirs and other industries.

5, laser engraving machine and CNC engraving machine with different processing quality

Laser engraving machine than CNC engraving machine has a higher processing accuracy, suitable for close cutting and engraving. Because the diameter of the laser beam is only 0.01mm, with the laser beam can be carved out of the narrow and delicate part, smooth and bright. the diameter of the CNC tool is 20 times larger than the laser beam, so the CNC engraving machine processing accuracy is not as good as laser engraving machine.

Laser processing speed is faster, laser is 2.5 times faster than CNC. Because laser engraving and polishing can be done in one pass, CNC needs to be done in two passes.

6. Other differences

A. Laser engraving machine consumes less energy than CNC engraving machine. The photoelectric conversion rate of laser engraving machine is up to 20%, very energy saving.

B. Laser engraving machine utilizes laser to change the material through high temperature. Therefore, similar to combustion, different materials of different materials in the working process will produce different combustion chemical reaction, which depends on the melting point of the material. Cutting effect is different, in the industrial process will also produce fumes and odors. cnc router relies on the spindle and bit work, similar to the drill, in the work process will only produce a lot of dust, and will not produce fumes and odors.

C, laser engraving machine is non-contact etching, no need to fix the workpiece, can protect the engraved surface from scratching; CNC engraving machine is contact processing, the workpiece needs to be fixed.

D, laser engraving machine can process soft materials, such as fabric, leather, film, etc.; CNC engraving machine can not be processed, because it can not fix the workpiece.