Tag: laser-cutting

Laser Cutting An Innovation For Highly Accurate And Precision Cutting

Laser Cutting An Innovation For Highly Accurate And Precision Cutting

Laser cutting is a methodology that uses a laser beam on the surface of the material which has to be cut. This methodology is mostly used in the industrial sector where large blocks of materials like iron and steel have to be cut to the required sizes. The process technically is similar to laser, marking and laser engraving. Even in this case, high power laser beam is directed onto the metal surface through optical devices like convergent lenses.

Computer numerical controls are used to direct the laser beams onto the material surface, which either melts or vaporises the material surface at the point of requirement, thereby living a very high quality finish at that point of cutting. Before the laser cutter or the laser cutting machine, became to be used extensively. These kinds of laser machines are mostly used to drill holes on the material surface. Advanced technology later on was used to cut material surfaces for aerospace applications, which needed a very fine finish. The disadvantages of mechanical cutting on certain material surfaces gave room to the invention of laser cutting machines. The process of laser cutting has its own advantages over the mechanical cutting like easier, cutting, more precision, accuracy, no wear and tear and so on.

Basically, there are three types of laser cutting machines in which the carbon dioxide laser is the best suited for cutting, drilling, and engraving. The ND lasers are used where very high power is needed in case of cutting very thick sheet metal materials. However, both carbon dioxide lasers and ND lasers can be used for the purpose of welding. While carbon dioxide lasers are used for the industrial cutting of many materials, including titanium and stainless steel, the ND lasers are primarily used for cutting ceramics. The laser cutting machine are dependent on the type of a gas flow that is used in it.

The usual types of gases that are used in these machines are carbon dioxide, helium, nitrogen, or a mixture of any of these. A laser cutting machine generates a good amount of heat within itself and hence requires a proper cooling process also. In most of the cases, water is commonly used as a coolant and is circulated during the process. A micro jet of water is integrated at a low pressure, which is used to perform laser cutting functions, which is also helpful in removing the debris and cooling the material.

Another advanced type of laser cutting machine is the fiber laser which is a solid state laser. Here the fiber technology is used to produce a laser beam which is then amplified and is known as fiber with a suitable wavelength. These lasers are very much suitable for cutting metals and metal sheets which reflect the light which is the main advantage of fiber laser cutting machine. Signvec is an organization that deals with laser cutting and engraving machine, known to have a number of advantages like less energy consumption, higher reliability, and performance, less maintenance, very low, operational cost and so on.

In Order To Find Out More Details On Laser Cutter Please Be Touch With Us Today Onwards..!

Laser Engraving The Magical Invention For Metal Surface Marking

Laser engraving and laser marking are quite known factors in the field of surface marking technologies. The theory and technology behind it is quite simple and straightforward but a talk about its applications would not end in a single discussion. The scope of this magical invention and the significance in various applications is amazing. Laser marking and laser engraving are those technologies which make use of a focused beam of light to the desired point on the surface of the material. While this converged beam of light is scientifically known as light amplification of stimulated emission of radiation, has an extraordinary power of making a permanent and consistent marking on any metal surface. Depending on the intensity of light, the amount of time it is in contact with the medical surface, and nature of the metal surface. These laser beams actually make a deep incision like markings, which is conspicuously visible from a distance.

Although laser marking machine and laser engraving machine is usually done on hard metal surfaces, it is also employed in creating or inscribing on other surfaces, which are comparatively weak and soft Depending on the metal surface and its nature, the amount of laser beam, the time of exposure and similar relevant aspects, the intensity, the focal point and other allied things are set up to carry out the necessary actions. Although these laser beams are used to engrave or mark an almost all solid surfaces, there are certain metals which are best suited for laser engraving and laser marking.

although there are other various means of writing and marking on metal surfaces, laser technology is the most preferred method because the marking has an exceptionally good capacity to remain legible and clear even under very hard conditions. The next important point that makes lasers marking machines and laser engraving machines stand above the rest is the time taken for the whole process. Laser marking and laser engraving hardly takes up any time in comparison to its other competitors where in the engraving is done using physical force like a rotor, or chipping of the unwanted material, and similar, physically, strenuous and mechanical methods whereas, in case of laser engraving and laser marking not much of physical strain is needed, on the contrary, only the laser beam must be moved in accordance with the inscription, text, image, symbol or other similar which have to be marked engraved. The same way in certain mechanisms the laser beam remains fixed while the platform on which the metal surface is placed is moved accordingly. In either of the cases, the marking is 100% accurate and precise and as per the necessity and requirement. 

Signvec Technology is the pioneer in engraving and signage industry located in Singapore specialist in laser, rotary engravers, marking, and allied products that range from high-end laser marking and engraving machines to affordable budget, range machines.

In Order To Find Out More Details On Laser Engraver Please Be Touch With Us Today Onwards..!

Laser Engraving And Marking: Metals That Are Mostly Preferred For The Job

The process of laser engraving or marking is one of the most preferred ways of inscribing on metal surfaces, where in a focussed beam of laser light is used to carry out the process. While this process can be implemented on various materials surfaces, there are certain materials that may not be so suitable as well. Material surfaces that are fragile and sensitive to lasers cannot be subjected to lasers. However material surfaces that are durable and tolerant to lasers can be successfully used to carry out the task of laser engraver and marking. Naming a few material surfaces that are commonly used, Aluminium both anodized and non-anodized, Stainless Steel are the ones that are extensively preferred, but all the same magnesium and lead also can be categorised as the metal surfaces that are suitable for the job.

A deeper review reveals why these metal surfaces are considered as ideal surfaces for laser engraving and marking. Aluminium is such a metal that is very widely used in fabricating vehicle crankcase and body parts in the automobile sector. With a comparatively high thermal conductivity, aluminium metal can sustain substantially high temperature variations and due to the naturally light colour of the metal surface laser engraver can make remarkable contrast markings which are quite conspicuous and visible easily. Stainless steel is the other metal that can be categorised as a metal that is one of the strongest materials, and can hence withstand the laser treatments to a great extent without the loss of properties or getting disfigured easily.

Along with the process of laser etching and engraving, the process of annealing laser on the material surface of steel also offers corrosion resistance, when we consider rust as one of the biggest killer of steel surfaces or the material as a whole. Steel tubes, sheets and other steel items can effectively endure to the process of laser engraving.

The metal magnesium is one such metal where the industrial sector mostly makes use of in the fabrication of auto parts that have to be lighter I weight. Generally spares like the gearbox parts, steering wheels of cars, engine casings and similar are those parts which contain a known percentage of magnesium to render the parts light in weight. Laser engraving works best in this metal surface thereby making it one of the preferred metals for laser marking and engraving. Lead is another metal that is subjected to laser engraving and etching or marking, in the industry.

Since the metal lead has a comparatively lesser thermal conductivity amongst the other preferred metals, heat generated during the process does not disassociate to the atmosphere or the surrounding, on the other hand it remains on the material surface, making it the fastest of the metal surfaces that can go on with the laser marking, etching and laser marking process. Companies like Signvec technology, with more than two decades of rich professional experience in the manufacture of laser marking machines, laser etching and laser engraving machines, provide second to none services in the mentioned sector.

In Order To Find Out More Details On Laser Marking Machine Please Be Touch With Us Today Onwards..!

Laser Engraving, Marking And Etching: An Overview Of Associated Aspects

The word Laser is an abbreviation which marks the process that is carried out by using a highly focused beam of light that is created by the stimulated emission, which is amplified to the desired extent where in the beam thus generated will leave a mark on the surface of a material. When this highly focused beam gets in contact with the material’s surface, it changes the material’s physical property and appearance.

While this focused beam aims at a specific area, a precise, contrasted mark is formed. Laser marking process makes it ideal for material surfaces which require accuracy and permanency. With the advancement of science and technology, the recent technically progressive cutting-edge fiber laser technology has been on the trend, belonging to the solid-state lasers category, they have a shorter wavelength due to which a smaller focal diameter beam is created or formed the point of impact on the material surface. In this case the intensity is many folds greater than the carbon di oxide laser technology. Owing to the high power beam and a considerably smaller wavelength, they are almost maintenance-free providing a service life of about 25000 hours.

Another category of lasers, the crystal lasers, too have their place in the same class, as of the solid state laser systems. In this type the diodes generate crystal laser beams, essentials present in these diodes are usually carrier crystals of neodymium. Even in this case the wavelength is quite convenient to mark on metals and plastics as well. But the main difference in this crystal lasers are the deterioration of the diodes over a period of time, rendering it not 100% maintenance free but requires some maintenance of the system, mainly the replacement of diodes.

These crystal lasers are efficient on coated metals, with an extended performance on other metals too. As mentioned crystal lasers can be used to mark and engrave on plastics, ceramics and other delicate and fragile material surfaces also. The topic of laser engraving and marking goes never ending, likewise the applications of these systems also is quite wide ranged. Lasers and its applications are applied in almost all the products ranging from an automobile spare part to laser printing on packing materials like wrappers, boxes and other similar containers.

Automobile engines and other critical parts are laser etched or laser marked or laser engraved for their unique and authentic engine and chassis numbers. These markings are permanent and deep so that they cannot be tampered easily. Organizations like Signvec, in Singapore manufacture, service and supply laser marking machine of supreme quality and performance. Specifically specialised in laser rotary engraving machine, laser cutting and laser marking machines, the organization delivers products ranging from the high end to the affordable range.

In Order To Find Out More Details On Laser Engravers Please Be Touch With Us Today Onwards..!