The cost of flame cutting equipment is low and it is the only economic and effective way to cut thick metal plate, but it has its shortcomings in thin plate cutting. Compared with plasma, the heat affected zone of flame cutting is much larger and the thermal deformation is larger. In order to cut accurately and effectively, operators need to have advanced technology to avoid the hot deformation of metal plate in the cutting process.
Laser cutting equipment can cut stainless steel less than 4mm, and adding oxygen in laser beam can cut carbon steel with thickness of 20mm. But after cutting with oxygen, a thin oxide film will be formed on the cutting surface. The maximum thickness of cutting can be increased to 20 mm, but the size error of cutting parts is large. The price of laser cutting equipment is quite expensive, about 1.5 million yuan or more.
Wire cutting is short for electric spark wire cutting. It is developed on the basis of electric spark piercing and forming. It not only develops the application of electric spark, but also replaces electric spark in some aspects. Now, the wire cutting machine accounts for most of the electric spark machines.
The plate shears use the moving upper blade and the fixed lower blade to apply shear force to the metal plates of various thicknesses with reasonable blade clearance, so that the plates can be broken and separated according to the required size. Shearing machine belongs to one of forging machines, and its main application is metal processing industry.
Plasma Cutting Machine
Plasma cutting is a kind of processing method which uses the heat of high temperature plasma arc to melt (and evaporate) the metal part or part of the workpiece incision, and uses the momentum of high-speed plasma to remove the molten metal to form the incision.
Ultra High Pressure Water Cutting
Ultra high pressure water cutting is also known as water knife and water jet. It is a high-energy (380MPa) water flow generated by ordinary water after multistage pressurization, and then use a very thin Ruby nozzle (Φ 0.1-0.35mm) to cary out jet cutting at a speed of nearly kilometers per second. This cutting method is called ultra-high pressure water cutting.