ZIGO sign-What are the cutting processes for signage? What are the advantages of these cutting processes?

A. Plasma cutting: Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to partially or locally melt (and evaporate) the metal at the workpiece incision, and uses the momentum of high-speed plasma to remove molten metal to form the incision; Plasma cutting machines, combined with different working gases, can cut various metals that are difficult to cut with oxygen, especially for non-ferrous metals (stainless steel, carbon steel, aluminum, copper, titanium, nickel) with better cutting effect. 

Advantages: When cutting metal with small thickness, plasma cutting speed is fast, especially when cutting ordinary carbon steel sheets, the speed can reach 5-6 times that of oxygen cutting method, the cutting surface is smooth, the thermal deformation is small, and there is almost no heat affected zone. 

B. Laser cutting: Using a high-power density laser beam to irradiate the cut material, the material is quickly heated to the vaporization temperature, evaporated to form holes. As the beam moves the material, the holes continuously form narrow (such as about 0.1mm) slits, completing the cutting of the material. Laser cutting method: 1. Laser vaporization cutting: uses a high-energy density laser beam to heat the workpiece, causing the temperature to rise rapidly, reaching the boiling point of the material in a very short time, and the material begins to vaporize, forming steam. The ejection speed of these vapors is very high, and at the same time, they form notches on the material. The heat of vaporization of materials is generally high, so laser vaporization cutting requires a high power and power density. Laser vaporization cutting is commonly used for cutting extremely thin metal materials and non-metallic materials such as paper, cloth, wood, plastic, and rubber. (Commonly known as air cutting, it is inexpensive and relatively inefficient compared to oxygen cutting.) 2. Laser oxygen cutting: uses laser as a preheating heat source and active gases such as oxygen as cutting gases. On the one hand, the gas blown out reacts with the cutting metal and undergoes an oxidation reaction, releasing a large amount of oxidation heat; On the other hand, molten oxides and molten materials are blown out of the reaction zone, forming notches in the metal. Due to the large amount of heat generated by the oxidation reaction during the cutting process, the energy required for laser oxygen cutting is only half of that for melting cutting, and the cutting speed is much faster than that of laser vaporization cutting and melting cutting. Laser oxygen cutting is mainly used for easily oxidized metal materials such as carbon steel, titanium steel, and heat treated steel (primary color stainless steel).

Advantages:

① Good cutting quality, due to the small laser spot, high energy density, and fast cutting speed, laser cutting can achieve good cutting quality.

② Due to the transmission characteristics of laser, laser cutting machines are generally equipped with multiple CNC workstations for high cutting efficiency, and the entire cutting process can be fully CNC controlled.

③ Fast cutting speed; Non contact cutting, during laser cutting, there is no contact between the cutting torch and the workpiece, and there is no tool wear; The laser cutting process has low noise, low vibration, and no pollution.

C. Water cutting: Water cutting, also known as water knife, or high-pressure water jet cutting technology, is a machine that utilizes high-pressure water flow for cutting. Under the control of a computer, workpieces can be arbitrarily carved with minimal influence from material texture. Due to its low cost, easy operation, and high yield, water cutting is gradually becoming the mainstream cutting method in industrial cutting technology.

Advantages:

(1) It can cut a wide range of materials, such as metal, marble, glass, and so on.

(2) Good cutting quality, smooth cuts, no rough or burrs on the edges.

(3) Heat free machining, as it uses water and abrasive cutting, does not generate heat (or very little heat) during the machining process, which is ideal for materials affected by heat. For example, titanium.

(4) Environmentally friendly, this machine uses water and sand cutting, which does not produce toxic gases during the processing and can be directly discharged, which is environmentally friendly.

(5) No need to replace cutting tools or cutting machine devices, one nozzle can process different types of materials and shapes, saving costs and time.

(6) Reduce burrs, use abrasive sand water jet cutting, and cut with fewer burrs

(7) No limitation on cutting direction → capable of completing various cutting shapes.

(8) The horizontal and vertical forces generated are extremely small, which can reduce the setting time and the cost of using fixtures.

(9) Drilling and cutting functions can be completed using the same machine, which can reduce process time and cutting costs.

(10) No thermal effects, deformation or minor cracks will occur → no secondary processing is required, which can save time and manufacturing costs.

(11) Will not produce toxic gases → can provide better working environment for operators.