Laser-cut aluminium is usually used as a basic product for casing, in environmental technology, in plant construction and for other construction required in industry. Aluminium is a soft metal. Like gold, silver, zirconium, copper, bronze and magnesium, aluminium belongs to the group of non-ferrous metals that can be cut using a laser.
The laser technology from JustLaser offers many benefits when it comes to industrial laser cutting: With a manageable level of investment, you’ll own a high-quality device that can process both hard and soft metals without any problems. Thanks to individual configurations, a JustLaser laser machine facilitates a wide range of possible applications for industrial use. Modern features and integrated software enable optimal control of the metal cutting process. Cutting aluminium up to 4 mm thick with a laser is considered a particularly precise and clean way of processing metal. The modulation frequencies of the laser can be varied individually between 500 and 50,000 Hz – the result is a perfect cut quality with a slag-free bottom edge. The cutting pattern, which you create in your old program, can be imported easily and sent to the laser.
In addition to aluminium, the following metallic materials used in industrial production are suitable for laser cutting:
Laser cutting is a cutting process in which material is removed as a result of the heat generated by a precise laser beam. It severs the material using designs defined beforehand. There are basic distinctions made between three different methods depending on the material thickness and requirements:
As aluminium is difficult to cut with a laser due to its high thermal conductivity, aluminium up to 4 mm thick is cut in a sublimation cutting process. In contrast to laser flame cutting and laser fusion cutting, this method is carried out without any cutting gas. The material is vaporised by the laser in the area of the cutting joint. As sublimation cutting causes almost no melting, it produces a fine, smooth cut. In addition, there is no increased oxidation on the edges, meaning that workpieces can continue to be processed without any post-treatment.
Aluminium is rust-inhibiting, chemically resistant and durable with a relatively low weight. Aluminium-magnesium (low percentage) alloys significantly improve mechanical strength and can also be cut using a laser. Aluminium and its alloys are an indispensable material in industrial production. The process of cutting aluminium with a thickness of up to 4 mm with a laser is used in a number of industries: in the automotive (parts) industry, in mechanical engineering and tool construction, in the IT and electronics industries and in sheet metal work, in metal and plant construction, in the production of front plates, in medical technology, in the jewellery industry, in robotics, etc., as well as in fab labs and unis.
Rely on highly-precise results when laser cutting aluminium up to 4mm thick and other metals! While alternative methods like milling or punching incur ongoing maintenance costs for swapping parts and tools, laser cutting is considered a more cost-efficient alternative long term. Thanks to the individually-adjustable beam groove, more elaborate designs with smaller radii can also be produced without any problems. Additional post-processing of finished components (heat treatment, coating, etc.) is usually not a problem.
Whether you use a fibre laser, another solid-state laser or a CO2 laser for cutting metal is dependent on the properties of the material and thickness of the sheet. Many types of metal can be processed using all three types of laser. As cutting aluminium requires a lot of effort due to its high thermal conductivity and at least a large part of the laser beam is reflected when puncturing, it is chiefly fibre lasers that are used when cutting aluminium up to 4 mm thick.
The laser technology wins people over in comparison to other equivalent devices due to its cost efficiency: a lower investment risk meets a higher throughput speed! Benefit from high processing speeds, short set-up times and high margins with maximum precision and quality when laser cutting sheet metal and copper. As the material remains largely unchanged in laser cutting, even delicate surfaces are not damaged.