Compared with other hot cutting methods, laser cutting has small working area, small incision and other hot cutting, which does not act as a laser beam on a very small area, resulting in wide incision, larger heat impact zone and obvious deformation of the workpiece. Jining laser cutting technology can cut non-metal, while other hot cutting methods can not.
以下是不同切割设备的比较：The following are the comparison of different cutting equipment:
1. Plasma cutting
The cutting speed is faster than that of oxyacetylene cutting, but the cutting quality is poor, the top of the cutting edge is round head, the cutting edge is obviously wavy, and the ultraviolet radiation produced by the arc is also prevented. It is slightly better than the laser cutting machine, which is suitable for cutting thick steel plates and aluminum alloy with high reflectivity.
2, oxygen - combustible body cutting
This method is mainly used for cutting low carbon steel. Because of its high heat input effect and low cutting speed, it is rarely used to cut the material with precise size below 20MM.
3, mold flushing
The die stamping method for mass production parts has low cost and short production cycle. But it has poor adaptability to the design changes. The new mold needs a long time design and high cost. For medium and small scale production, the characteristics of laser cutting will be fully displayed. In addition, laser controlled cutting facilitates the tight layout of the workpiece and saves material, while die stamping requires materials reserved around each workpiece.
4. Subsection punching and cutting of complex parts
In general, the punching machine often needs to scour a much larger workpiece than the die size, and some of the pieces are very complex, which leads to a lot of small shell shaped edges, which requires second preparative refurbishment. In addition, the punch will form a much wider incision than the laser cutting machine, resulting in a large amount of iron filings.
5. Electrical machining
Generally, there are two methods of electric spark and electrochemical machining using electric corrosion or melting effect. It is used for fine processing of hard materials, with better cut roughness, but the cutting speed is several orders of magnitude slower than that of laser cutting machine.
Cutting thin metal, its speed is significantly slower than the laser cutting, and the laser as a flexible, contact cutting tool, can cut from any point of the material to cut in any direction. In this case, sawing is difficult to do.
7. Water cutting
Many metal materials can be cut, but the cost is very high.
The difference between laser cutting and other cutting methods
Comparison between laser cutting and traditional cutting method:
1. After laser beam focusing, the power density is high. It can cut any hard to melt high melting point material, high temperature resistant material and hard brittle material.
2, narrow slit, generally 0.1-1mm, good quality of slotting, smooth edge of cutting edge, no field edge, no cutting residue. It can cut micron level precision with complex contour and small curvature radius, and can save material 15%-30%.
3, non-contact cutting, the workpiece is not subjected to mechanical force, deformation is minimal. It is suitable for cutting hard and brittle materials such as Bo Li, ceramics and semiconductors, and parts with poor usability such as honeycomb structure and thin plate.
4, the cutting speed is high, and it can reach 2-4m/min.
5, the cutting depth to width ratio is about 30, which can reach more than 100 for non-metal.
标签:   钣金加工 激光切割加工