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CNC engraving machines and laser engraving machines are computer engraving machines, and the CNC engraving machine refers to the CNC router, CNC routers, CNC engraving machines or CNC engraving machines, and laser engraving machines refer to laser sculpture, both require computer control engraving . The preparative image file or path map is imported into the computer after the computer is typically plated. From this perspective, both belong to the machine. Although digital control systems are used, their working methods are different, and their mechanical structures are also different. In contrast, the structure of the CNC engraving machine is relatively simple. By controlling computer CNC systems, the machine automatically selects the appropriate bit and tool and engrave it along the X, Y and Z axis of the machine.

Many people have always misunderstand the CNC engraving machine and laser engraving machine as a thing. In fact, there are many differences between the two machines.

Definition

Laser engraving is based on numerical control technology, and the laser is a machining medium. The laser source emission laser, the numerical control system controls the laser head and the motor to move the laser head, mirror, lens or the like on the optical element, so that the focus on the shaft of the moving machine on X, Y, and Z. The material is irradiated by laser instantly. The physical modification of melting and gasification realizes the purpose of processing.

During the laser engraving, there is no contact material surface, which is not affected by mechanical movement, the surface does not deform, and usually does not need to be fixed. Not affected by the flexibility of material, it is convenient for soft materials. High processing accuracy, fast speed, wide application field.

CNC is an abbreviation for computer digital control, which is an automated machine with a program control system. The control system can logically handle the program with a control code or other symbol instruction, and decode it so that the machine tool can move and process the part. The CNC engraving machine is a power tool that completes machine engraving through CNC control.

Method

The laser engraver uses a laser that changes the material by high temperature. Therefore, similar to combustion, different materials of different materials will produce different combustion chemical reactions during operation, which will vary depending on the melting point of the material. The cutting effect is different, and the oily smoke and odor will also produce during the industrial process.

The CNC router depends on the spindle and bit work, similar to the drill bit, which will produce a lot of dust during the work, but does not generate smoke and odor.

Laser engraving is non-contact etching, which can protect the surface of engraving materials being scratched. In addition, the laser beam is very thin, so the slit is small and suitable for precision cutting. The cutting of the CNC engraving machine depends on the diameter of the router bit. There are many types of route. Different routers are used for different materials.

Principle

The laser engraver is transmitted from the laser, and its focus is focused into the high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to reach the workpiece to the melting point or boiling point. At the same time, the high pressure gas with beams blows away from melting or evaporated. As the relative position of the beam and the workpiece movement, the material will eventually form a cut mark to achieve the purpose of engraving.

The CNC engraving machine depends on a high-speed rotary engrave driven by the motor spindle. By the cutting tool constructed according to the processing material, the processing materials secured on the workbench can be cut by automatically engraving, and various 2D or 3D desks with embossing graphics or text can be implemented by automatically engraving operations.

The maximum difference between the laser engraver and the CNC engraving machine is the tool of the laser sculpture machine is a complete optical component, while the CNC router tool is a bit of various entities. 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 cuts and engraved the material using a high-speed rotating cutter, so the action objects of the two operations of the engraving are different.

Application

The laser engraving machine can only cut and shallow on the surface of the object, and can be carved, such as portrait of the marble tombstone. The CNC engraving machine can cut or expand relief, such as a relief of some wooden furniture.

The laser engraver can be generally divided into non-metallic laser engraving machine (CO2 laser engraving machine) and metal laser engraving machine (fiber laser engraving machine). Non-metal engraving machines can be divided into: common engraving machine and non-metal laser marking machine. Metal engraving machines can be divided into metal laser markers and metal engraving and cutting integrated machines.

Metal laser sculpture materials: metal plate, acrylic, plexiglass, glass, cloth, leather, paper, bamboo wood, film, canvas, etc.

Non-metallic laser sculptures are suitable for materials such as wood products, paper, leather, cloth, plexiglass, epoxy resin, acrylic, wool, plastic, rubber, tile, marble, spar, bamboo products, etc.

The CNC engraving machine has a wide range of applications that can be applied to various fields and industries suitable for engraving and cutting various materials (except for materials with low melting point).

CNC engraving machines can be applied to furniture, decoration, musical instruments, handicrafts, molds, logos, souvenirs, and processing materials, including wood, foam, acrylic, plastic, PVC, ABS, stone, imitation stone, marble, aluminum plastic board, copper, Aluminum and other soft metal materials.

Briefly, the laser engraver is engraved using a laser melting or combustion method, while the CNC router uses digital techniques to control the cutter or laser head and the ultrasonic head to engrave. The laser engraving machine can be a CNC engraving machine. The CNC engraving machine can also be equipped with a laser head for engraving. These two are intersecting, they are in intersecting relationships.