Five Differences Between Fiber Laser Cutting Machine And CNC Punching Machine

In this era of rapid development of science and technology, with the rapid update of market requirements and product requirements, people have put forward higher requirements for the rigidity and flexibility of processing equipment. The application of fiber laser cutting machine has brought a new life to the processing industry. Compared with traditional CNC punching machines, laser cutting machine has the advantages of 3C and 3S: Cool, Clean, Calm, Sure, Safety, Saving. But in the entire processing market, laser cutting machines are equally divided with CNC punch presses. Why is this?

Fiber laser cutting machine is a new type of metal sheet and tube processing equipment on the market. Its processing principle is that a laser generates a high-energy laser beam and focuses on the surface of the metal material, so that the irradiated part melts instantly, and the auxiliary gas will blow off the melted residue blows off and evaporates, creating a cutting slit. Then through the X, Y, Z three-axis linkage, to achieve cut.

CNC punching machine is an automatic machine tool controlled by CNC program. It can be used for the processing of various types of metal sheet parts. It can automatically complete a variety of complex hole patterns and shallow stretch forming processing at one time. Compared with traditional cutting equipment, CNC punching machine is more accurate. And the cost of use has more advantages. It only needs simple mold matching to complete most of the work. Shandong Reaying Machinery Co., Ltd. introduces the knowledge of five-point of fiber laser cutting machine and CNC punching machine.

1. Efficiency and cost
   From the cost point of view: the operating cost of the laser cutting machine is higher than the number! The technological content of laser cutting machine is higher than that of CNC punching machine, and the noise of CNC punching machine is very loud! The laser cutting machine has almost no noise, and the accuracy of the laser cutting machine is higher than that of digital punching, especially when processing some holes.
   When the original punching machine + shearing machine is used, the shearing machine needs to be transferred to the CNC punching machine after cutting, which requires more labor than the laser cutting machine. Comprehensively compare the cost of laser cutting machine (3kW Raycus fiber laser source) and CNC punching machine: power and consumables (consumables for laser cutting machine are focusing mirror, ceramic body, nozzle, protective lens, gas etc.; consumables for punching machine are mold etc), Labor, equipment depreciation, the result is that the cost of laser cutting machine is about USD25.5/hour, punching machine costs USD24.8/hour.
   According to the estimation of the processing efficiency of the same sheet metal parts (carbon steel, thickness 1.5 ~ 3mm), the result is that it takes only 0.2 hours to use the laser cutting machine, and 0.7 hours to use the punching machine.
   It can be seen that the laser cutting machine has obvious advantages in efficiency and cost. Of course, if the product volume is large and a specially designed mold (such as a porous mold, but this will damage flexibility), the efficiency of the CNC punch can be improved until it is comparable to the laser cutting machine.
2. Functions and limitations
   Laser cutting machine and CNC punching machine have their own functional limitations.
   If you need to realize the functions (process) such as blinds, shallow drawing, countersinking, flanging holes, ribs, embossing, etc., you can only use CNC punching machines; and for saw blades with silencers, only laser cutting machines are competent.
   As a leading brand in the laser cutting machine industry, Shandong Reaying Machinery Co., Ltd. has 12 years of mechanical equipment manufacturing experience, and introduces foreign advanced technology to strive to create the most cost-effective laser cutting enterprise. The equipment currently produced includes CO2 engraving and cutting machines, Fiber laser cutting machine, pipe and tube laser cutting machine, laser cleaning machine and laser welding machine are widely used in sheet metal processing area, such as auto parts, advertising production, sports equipment, chassis electrical cabinets, kitchen and bathroom industries.
3. Processing materials
   There is a big difference in processing materials! CNC punch presses tend to process relatively thin plates. CNC punching machines can basically only punch metal materials, and the thickness is generally not greater than 6mm thick materials, but the laser does not have much restrictions on this, it is determined according to the power of the laser!
   Laser cutting machine can cut metal materials (including ferrous metals, non-ferrous metals, such as carbon steel, stainless steel, silicon steel, galvanized sheet, aluminum alloy, …). At present, 25000W fiber laser cutting machine can cut 70MM thick iron plate!
4. Processing flexibility
   From the perspective of flexibility, the laser cutting machine has advantages, which can cut holes of any shape and size; and the punch can only cut a limited number of holes. When encountering irregular and large-size holes, the small die step punching process is used. Low efficiency and severe mold wear.
   In order to meet the processing needs of different products, CNC punching machines must purchase a lot of molds (different sizes, the same size but for different thicknesses of materials). Furthermore, a warehouse for molds must be prepared, which increases the need for mold management. In addition, CNC punch presses have higher requirements on the flatness and surface cleanliness of the plates.
5. Precision and roughness
   Laser cutting machine belongs to non-contact processing, no stress, no deformation, positioning accuracy ± 0.03mm, workpiece accuracy ± 0.05mm, cutting section is delicate and smooth; CNC punching machine processing accuracy is slightly worse, punching section has burrs, and workpiece has deformation.

In this regard, as long as we can easily distinguish the essential difference between laser cutting machine and CNC punching machine through the above five points. Through these differences, you can choose the appropriate machine tool or fiber laser cutting machine. If you have more questions, please feel free to contact us.

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