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Laser cutting is a slitting process with which it is possible Jasa Laser Cutting to cut metallic and non-metallic raw materials of different material thicknesses. This is based around a laser beam which is guided, formed, and bundled. When it hits the workpiece, the material heats up to the extent that it melts or vaporizes. In this process, the whole laser power is concentrated on one point, with a diameter that is often less than half a millimeter. If more heat is introduced into this area than can dissipate through heat conduction, the laser beam will penetrate the material entirely – the cutting process has begun. While other processes involve applying large-scale tools with enormous power to the sheet metal, the laser beam completes its task without any contact. In this way, the tool does not incur wear, and no deformities or damage to the workpiece occur.
Advantages of laser cutting
All materials common in industrial processing – from steel to aluminum, stainless steel, and non-ferrous metal sheets, all the way to non-metal materials such as plastics, glass, wood, or ceramics – can be cut safely and in high quality with the laser. Very different sheet thicknesses of 0.5 to over 30 millimeters can be cut using the tool. This extremely wide material range makes the laser the top cutting tool for many applications in the area of metals and non-metals.
The bundled laser beam only heats up the material locally, and the rest of the workpiece is subjected to minimal thermal stresses or not at all. This means the kerf is barely wider than the beam and even complex, intricate contours may be cut smoothly and free of burrs. Time-consuming post-processing is no longer necessary in most cases. Due to its flexibility, this cutting procedure is often used for small lot sizes, large variant ranges, and in prototype construction.
High-quality cutting edges with ultrashort pulses
Ultrashort pulse lasers vaporize virtually every material so quickly that heat influence cannot be detected, thereby creating high-quality cutting edges without ejection of melted material. This makes the lasers ideal for the manufacture of the most intricate metal products, such as stents for Jasa Laser Cutting Medan medical technology. In the display industry, ultrashort pulse lasers cut chemically hardened glass.Discover our products for laser cutting
Whether 2D or 3D laser processing – TRUMPF offers machines and systems for extremely various applications for you.Find out more
The interaction between a focused laser beam and workpiece forms the basis of laser cutting. In order for this process to be carried out reliably and precisely, numerous components and additional equipment are used on and around the laser beam, which will be illustrated in the following graphic.Focusing optics: lens and mirror optics focus the laser beam on the processing pointLaser beam: the laser beam hits the workpiece and heats it up until it melts or vaporizes.Cutting gas: the resulting melt is blown out of the kerf using cutting gas. The gas is emitted coaxially with the laser beam from the nozzle.Drag lines: during laser cutting, the cutting edge is given a typical drag line pattern. At a lower cutting speed, these drag lines are virtually parallel to the laser beam.Melt: the laser beam – bundled laser light – is guided along the contour and melts the material locally.Cutting point: on the workpiece, the kerf is barely wider than the focused laser beam.Nozzle: laser beam and cutting gas meet the workpiece through the cutting nozzle.Cutting direction: the kerf is created by moving the cutting head or the workpiece in a specific direction.
Various applications in the area of laser cutting
Virtually no visible burr formation: the gearwheel shows the excellent part quality produced by laser cutting even in thicker materials.
Fibre-reinforced plastics are the ideal raw material for lightweight design. However, the unruliness of the material poses challenges for nearly all tools – except the laser. Customers benefit from the speed and flexibility in shape of the laser cutting tool in prototype construction in particular.
From mild to stainless steel all the way to highly reflective materials – all industrially common materials can be processed by the laser with high levels of quality.
Fast, burr-free, and in three dimensions: this is how a laser cuts hotforming components such as B pillars in the automotive industry.
In fusion cutting, the laser cuts thin stainless and mild steel with a thickness from 0.lima millimeters, very quickly and cost effectively.
Even components which are formed three-dimensionally such as heat protection sheets for exhaust gas systems may be precisely cut with a laser.
Even brittle materials such as glass can be processed using laser cutting machines and at high speeds with mirror-smooth results – without burrs or chips.
BrightLine fiber is a sophisticated combination of special optics, flow-optimized nozzles, and additional technical innovations. The advantage: due to the high-quality cutting edges, parts do not get caught during part removal.
Compared to mechanical slitting processes, a laser allows household knives to be produced faster and without requiring post-processing on the cutting edge.
Short and ultrashort pulse lasers cut the most intricate structures at the micrometer level quickly and cost effectively. This is how laser-cut hands for the clock industry or laser-cut implants for medical technology are created.
All laser cutting procedures at a glance
When it comes to cutting metal and non-metal raw materials, the laser is in many cases the first choice as a universal tool. The laser beam cuts nearly any contour quickly and with flexibility – regardless of how intricate and complex the shape is, or how thin the material. In the process, various cutting gases and pressures influence the machining process and the result.
For flame cutting, oxygen is used as the cutting gas; this is blown into the kerf with a pressure of up to 6 bar. There, it burns and oxidizes the metal melt. The energy generated by this chemical reaction supports the laser beam. Flame cutting allows for very high cutting speeds and the processing of thick sheet metals and mild steels.