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Which are better, laser engraving machines or CNC engraving machines? Which is more suitable for your engraving project? Many friends who want to buy an engraving machine are confused about this. In fact, there are many differences between the two machines. You can first understand clearly and then choose according to your own price needs.
Both CNC engraving machine and laser engraving machine are computer engraving machines, which are controlled by a 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, all need a computer to control the engraving. After pre-typesetting with a computer, import the prepared picture files or path diagrams into the machine.
1. The working methods of laser engraving machine and CNC engraving machine are different
Laser engraving machine is a kind of equipment based on numerical control technology that uses laser heat energy to engrave materials. The laser light is emitted by a laser and is focused into a high-power density laser beam through the optical path system. The light energy of the laser beam causes chemical and physical changes in the surface material to engrave traces, or light energy burns off part of the material to display patterns and texts that need to be etched.
The CNC engraving machine relies on a high-speed rotating engraving head driven by an electric spindle. Through the tool configured according to the processing material, the processing material fixed on the host table can be cut, and various flat or three-dimensional patterns designed by the computer can be engraved. The embossed graphics and text can realize automatic engraving operation.
2. The mechanical mechanism of laser engraving machine and CNC engraving machine is different
The cutter of the laser engraving machine is a complete set of optical components, while the cutter of the CNC engraving machine is a variety of solid drills. The laser etching machine uses the high energy of the laser to complete the cutting or engraving of the material, while the CNC engraving machine uses the high-speed rotating cutter head to cut and engrave the material, so the two forms have different effects on the material. The object being carved.
3. The applicable materials of laser engraving machine and CNC engraving machine are different
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, the metal laser engraving machine is suitable for stainless steel, copper, aluminum, carbon steel, iron, aluminum alloy and various metal alloys. Non-metal laser engraving machine is suitable for marking most non-metal materials, such as paper packaging, plastic products, label paper, leather cloth, glass ceramics, resin plastics, bamboo and wood products, PCB boards, etc.
CNC engraving machine is suitable for engraving and cutting various materials (except low melting point materials).
4. The application fields of laser engraving machine and CNC engraving machine are different
The laser engraving machine can only cut and engrave the surface of the object, and can do shadow engraving, such as marble tombstone portrait engraving. Laser engraving machines are generally used in clothing proofing, leather industry, shoe industry, decoration industry, furniture industry, packaging and printing industry, model industry, craft gift industry, etc.
CNC engraving machine can cut or make reliefs, such as relief carvings of some wooden furniture. CNC engraving machines are generally suitable for furniture, decoration, musical instruments, handicrafts, molds, signs, souvenirs and other industries.
5. The processing quality of laser engraving machine and CNC engraving machine is different
Laser engraving machine has higher processing accuracy than laser engraving machine, and is suitable for close cutting and engraving. Because the diameter of the laser beam is only 0.01mm, a narrow and delicate part can be carved with the laser beam, smooth and bright. The diameter of the CNC tool is 20 times larger than the laser beam, so the processing accuracy of the CNC engraving machine is not as good as that of the laser engraving machine.
The laser processing speed is faster, and the laser is 2.5 times faster than the CNC engraving machine. Because laser engraving and polishing can be done at one time, CNC needs to be done in two parts.