Cutting has long been used in many industries, especially with lasers due to precision cuts and high-quality end products. Laser cutting is used in many ways, and one of which is cutting metal plates. With the use of laser cutting, metal plates untempered martensite is reduced at the free edges of place.
Laser cutting is a process that is concerned with the removal of the parts of the material or the material through heating and cutting in a determined trajectory. The heating part is obtained by focusing the laser beam on the part of the surface that needs to be removed. Sometimes laser cutting makes use of water-jet cutting to get rid of untempered martensite.
Laser cutters are operated by Computer Numerical Control or CNC parameters. This computer-operated cutting allows high precision and increased cutting speed of the product. Designs are done on CAD through 2D programming, then any minor or major designs on the cut can be easily manipulated.
On the other hand, Martensites are a form of steel crystalline structure that is very hard in form. In other brittle materials, laser cutting is used in ceramics, semiconductors, and glasses. Laser cutting has been effective in these brittle materials because it overcomes the disadvantages of mechanical machining in tool wear and cutting speed.
Some techniques in laser cutting have been adopted in brittle materials so as not to break easily the materials. These techniques are controlled fracture and vaporization/melt injection. Another application of laser cutting technology is in titanium alloys, wherein cutting parameters are strictly observed since titanium alloys have a higher affinity to oxidation reactions.
Laser cutting has proven to have major advantages over conventional cutting methods because it offers precise operation, nonfictional processing, and less operational cost. During the laser cutting process, the generated heat minimizes the heat losses from the regions which are then irradiated by a laser beam.
There are minimal heat dissipations since the temperature is created in other irradiated regions. Some of the factors to consider in laser cutting are the laser cutting parameters, cutting speed, and laser power output. In the hole cutting process, the energy used is affected by these parameters. There is a correlation between the hole cutting process and product quality.
Most used lasers in laser cutting may be CO2 or solid-state lasers such as Nd, YAG, fiber, or disc lasers. CO2 lasers are used for engraving, Nd and YAG are for cutting, both are programmable and convert 2D designs into a physical object. There is a variation based on the machine used and the process. In laser cutting alumina, a raw product of aluminum, the effect of laser cutting parameters are determined by interaction time, irradiance, and assist gas pressure.
Some of the main ways to which a laser can be used in cutting are through the method of vaporization, melt and blow, melt burn and blow, guided thermal stress cracking, scribing, cold cutting and burning stabilized laser cutting, or LASOX. The most common method of laser cutting in alumina is guided thermal stress cracking and scribing. Nonferrous materials like aluminum, titanium alloy, and nickel solid-state lasers are used. The beam wavelength is transported via an optical fiber, and these laser types are best used in automated production lines carried out by robots. Aluminum compared to other metals such as stainless steel and carbon steel has a lower maximum cutting thickness, which makes it easier to laser cut and customize. The striation of metals as the metal thickness increases, producing a rougher surface. Fiber laser cutting in a thin sheet of metals reduces the possibility of stiration, while auxiliary optical systems are ideal for straight-sided profiled shapes.
Some of the advantages of laser cutting metal include:
- Precision cuts compared to plasma and water jet cutting
- The high-quality end product, the accuracy of the beam makes an intricate cut
- Cost-effective in metal fabrication
- Speed of beam is more efficient nowadays
- Prevents warping and distortion of metal in small area cuttings
- Does not require work stoppage or replacement parts
- Desired detailed shape during manufacturing is easily achieved
- Lesser operational time compared to traditional cutting (shearing, punch press, tooling, etc)
- It May be machine operated
- Less labor
- Less operational cost
- Operated by Computer Numerical Control (CNC) parameters, thus more efficient.
Generally, laser cutting offers higher precision, less operation time, is open for customization, and less cost compared to other metal cutting methods. Here in Yongu, we are using the best CNC machinery that enables our lasers to perform efficiently and fast without missing a slight cutting parameter. With our CNC machinery, the lesser cutting time means less operation cost and more products to be cut. Good thing, CNC machinery in laser cutting automatically adjusts the laser beam based on the thickness of the metal. As we have mentioned above, aluminum offers the best quality above other metals in this industry and has a lower maximum cutting thickness which makes it easier to design and cut. Here at Yongu we can fabricate your metals, especially aluminum into your desired end product. Let’s turn that design into reality, contact us today.
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