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stainless steel cutting difference

1. Application range comparison


The laser cutting machine has a wide range of applications. Whether it is metal or non-metal, it can be cut and cut into non-metal. For example, cloth, leather, etc. can be used with CO2 laser cutting machine. For cutting metal, fiber laser cutting machine can be used. The deformation of the sheet is small.


Water cutting is cold cutting, no heat deformation, good quality of cutting surface, no need for secondary processing, and easy secondary processing if needed. Water cutting can punch and cut any material, and the cutting speed is fast and the processing size is flexible.


The plasma cutting machine can be used for cutting various metal materials such as stainless steel, aluminum, copper, cast iron, carbon steel, etc. The plasma cutting has obvious thermal effect, the precision is low, and the cutting surface is not easy to be subjected to secondary processing.


Wire cutting can only cut conductive materials, and cutting coolant is needed during the cutting process. Therefore, materials such as paper, leather, etc. that are not conductive, afraid of water, and afraid of cutting coolant contamination can not be cut.


2. Cutting thickness comparison

Industrial applications of laser-cut carbon steel are generally below 20 mm. The cutting ability is generally 40 mm or less. Stainless steel industrial applications are generally below 16mm, and the cutting capacity is generally below 25mm. Moreover, as the thickness of the workpiece increases, the cutting speed drops significantly.

The thickness of the water cut can be very thick, 0.8-100mm, or even thicker material.


The plasma cutting thickness is 0-120mm, and the plasma system with the best cutting quality range of about 20mm has the highest cost performance.


The thickness of the wire cutting is generally 40 to 60 mm, and the thickness is up to 600 mm.


3. Cutting speed comparison

Cutting a 2mm thick low carbon steel plate with a power of 1200W, the cutting speed can reach 600cm/min; cutting a 5mm thick polypropylene resin board, the cutting speed can reach 1200cm/min. The cutting efficiency that can be achieved by WEDM is generally 20-60 mm 2 /min, up to 300 mm 2 /min; obviously, the laser cutting speed is fast and can be used for mass production.

The water cutting speed is quite slow and is not suitable for mass production.


Plasma cutting has a slow cutting speed and low relative accuracy, which is more suitable for cutting thick plates, but the end faces have a slope.


For metal processing, wire cutting has higher precision, but the speed is very slow, sometimes it needs to be additionally pierced and threaded by other methods to cut, and the cutting size is greatly limited.


4. Cutting accuracy comparison

The laser cutting slit is narrow, the slits are parallel on both sides and perpendicular to the surface, and the dimensional accuracy of the cut parts can be up to ±0.2 mm.

The plasma can reach less than 1mm.

Water cutting does not produce thermal deformation with an accuracy of ±0.1mm. If a dynamic water cutting machine is used, the cutting accuracy can be improved, and the cutting accuracy can be up to ±0.02mm, eliminating the cutting slope.

Wire cutting processing accuracy is generally ±0.01 ~ ± 0.02mm, up to ± 0.004mm.


5.Slit width comparison

Laser cutting is more precise than plasma cutting, and the slit is small, about 0.5mm.

Plasma cutting slits are larger than laser cutting, around 1-2mm.

Water-cut slits are approximately 10% larger than the diameter of the tube, typically 0.8-1.2 mm. As the diameter of the sanding tube expands, the incision becomes larger.

The slit width of the wire cutting is the smallest, generally about 0.1-0.2 mm.


6. Cutting surface quality comparison

The surface roughness of laser cutting is not cut by water, and the thicker the material, the more obvious.

Water cutting does not change the texture of the material surrounding the cutting seam (laser is a thermal cut that changes the texture around the cutting area).


Production input cost comparison

1) Different types of laser cutting machines have different prices. Cheaper carbon dioxide laser cutting machines are only 20,000 to 30,000. The expensive 1000W fiber laser cutting machine now has more than one million. Laser cutting has no consumables, but the investment cost of equipment is the highest among all cutting methods, and it is not a little higher, and the maintenance cost is also quite high.

2) The plasma cutting machine is much cheaper than the laser cutting machine. According to the power and brand of the plasma cutting machine, the price is different, and the use cost is high, basically as long as the conductive material can be cut.


3) The cost of water cutting equipment is second only to laser cutting, high energy consumption, high maintenance cost, and no cutting speed. Because all abrasives are disposable, they are discharged to nature once. Therefore, the environmental pollution caused by it is also serious.

4) Wire cutting is generally around tens of thousands. However, wire cutting is consumable, molybdenum wire, cutting coolant, etc. There are two kinds of wire commonly used for wire cutting, one is molybdenum wire (molybdenum is expensive), used for fast wire walking equipment, the advantage is that molybdenum wire can be reused many times; the other is copper wire (in any case, it is much cheaper than molybdenum wire) )), for slow wire walking equipment, the disadvantage is that the copper wire can only be used once. In addition, the fast wire feeder is far cheaper than the slow wire feeder, and the price of a slow wire is equal to 5 or 6 sets.


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