(CNC) Shearers, because they are mainly straight-line cutters, can cut a sheet of up to 4 meters in length, but they can only be used on sheet metal that requires only straight cuts. It is generally used in industries that require only straight-line cutting, such as cutting after flat cutting.
(CNC / turret) punches have more flexibility in the curve processing, a punch can have one or more sets of square, round or other special requirements of the punch, you can process a specific sheet metal workpiece The most common is the chassis cabinet industry. The processing technology they require is mainly the cutting of straight lines, square holes, and round holes, and the pattern is relatively simple and fixed. They are mainly faced with carbon steel sheet below 2mm, and the width is generally 2.5m x 1.25m. Stainless steel with a thickness of 1.5mm or more is generally used without a punch because the material viscosity is too large for a mold. The advantage is that the simple graphics and thin plate processing speed, the disadvantage is the ability to punch thick steel plate is limited, even if the red can also be the workpiece surface collapse, cost mold, long mold development cycle, high cost, the degree of flexibility is not high enough. More than 2mm steel plate cutting in foreign countries generally use more modern laser cutting, instead of using a punch, a thick steel plate punching surface quality is not high, two punching thick steel plate requires a larger tonnage punch, a waste of resources, three When the thick steel plate is too noisy, it is not conducive to environmental protection.
Flame cutting as the first traditional cutting method due to its low investment in the past, the processing quality requirements are not high, when the requirements are too high and then add a machining process can be solved, the market holdings is very large. Now it is mainly used to cut thick steel plates over 40mm. Its disadvantages are that the thermal deformation during cutting is too large, the kerf is too wide, the material is wasted, and the processing speed is too slow, which is only suitable for rough machining.
Plasma cutting and fine plasma cutting are similar to flame cutting in that the heat affected zone is too large, the precision is much larger than that of flame cutting, and the speed also has a quantum leap, becoming the main force for medium plate processing. The actual cutting accuracy of the top CNC precision plasma cutting machine in China has reached the lower limit of laser cutting. When the 22mm carbon steel plate is cut, it reaches a speed of more than 2 meters per minute, and the cutting end surface is smooth and flat, and the slope can be best. Control within 1.5 degrees, the disadvantage is that when the thin steel plate is hot deformation is too large, the slope is also large, when the precision requirements are high, powerless, consumables are more expensive.
High-pressure water cutting is the use of high-speed water jet doping silicon carbide in the implementation of the sheet metal cutting, it has almost no restrictions on the material, the cutting thickness is also almost up to 100mm or more, for ceramics, glass and other materials used in thermal cutting is also easy to burst Can be cut, copper, aluminum and other high-reflectivity laser waterjet material can be cut, and laser cutting there is a bigger obstacle. The disadvantage of water cutting is that the processing speed is too slow, dirty, environmentally unfriendly, and consumables are high.
Laser cutting is a process revolution in sheet metal processing. It is a "processing center" in sheet metal processing. Laser cutting has a high degree of flexibility, cutting speed, high production efficiency, short product production cycle, and has won a wide market for customers. Laser cutting without cutting force, processing without deformation; no tool wear, good material adaptability; no matter whether it is a simple or complex part, you can use a laser precise rapid forming cutting; its narrow slit, good cutting quality, high degree of automation, operation Simple, low labor intensity, no pollution; automatic cutting and nesting can be achieved, material utilization is improved, production cost is low, and economic benefits are good. The technology has a long life span. Currently, most of the ultra-structured 2 mm plates in foreign countries are laser-cut. Many foreign experts agree that the next 30-40 years are the golden period for the development of laser processing technology (which is the direction of the development of sheet metal processing). .
Snake / Cobra Tension Fabric Display
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