Differences Between Laser Machines – Laser Marking, Laser Engraving, Laser Etching and Laser Cutting

LASER stands for ‘Light Amplification by the Stimulated Emission of Radiation’. It is implemented in several industries like spinal-implant, automotive, industrial & tooling, electronics, medical, military & defence, etc. It is also useful for welding, measuring, drilling and sensing.

There are many types of laser machines like a laser marking, laser engraving, laser etching, fiber laser cutting machine. There is a difference between each laser service which is mainly due to the marking surface and how deep a laser penetrates and the way it changes the overall appearance.

Laser has an ability to cut material as well and hence is useful in several manufacturing industries. To use it for the purpose of cutting, it is necessary to use a high power laser usually through optics and make use of technology like laser optics and CNC to focus it on the material.

fiber laser marking machine

Laser Marking Machine:

The purpose of laser marking is to allow the bean to interact with the surface of a material and alter its properties to some extent. A fiber laser marking machine implements a method of discolouration to create a high-contrast mark without disrupting the material. A laser works to heat the material that results in oxidation under the surface. This process does not affect the surface. This process is also referred to as laser colouration or laser dark marking. The Laser marking can be of many types like annealing, carbon migration, foaming and colouration. It is popular in several industries like stainless steel, titanium parts, etc. This process is mainly useful for bar codes, UID codes, QR codes, logos and several other identification requirements.

Fiber Laser Cutting Machine

The laser beam is generated by stimulating a lasing material using an electrical discharge or lamps within a closed container in the fiber laser cutting machine. Once the lasing material is stimulated a beam is reflected internally with the help of a partial mirror. This process continues until sufficient energy is allowed to escape a stream of monochromatic coherent light. In general mirrors or fiber optics are made use of to direct the coherent light to a lens and focus it on the work zone.

It is more advantageous to use laser cutting than mechanical cutting since it involves easier work holding and lesser contamination of the workpiece. Besides this laser is better for precision cutting as well since a laser beam does not wear during this process. Chances of warping the material being cut is also low since the laser systems have a very small heat affected zone. It also has many advantages over plasma cutting and is more precise and uses less energy as well.

Laser engraving

This is the process of physically removing the surface of the material using a laser beam to expose the cavity and reveal an image at eye level. The intense heat created during the engraving process causes the material to vaporize. There are three types of laser engraving like etching, deep laser engraving and laser ablation. The main difference is how much is removed and the difference between the surfaces.

There are several applications for this including engraving serial numbers, logos and several other similar things. Many types of metal, plastic, glass surfaces and leather can be engraved in this method. This method is faster that other traditional methods as well.

Laser Etching:

This is a subset of laser engraving and occurs when the heat from a beam causes the surface of the material to melt. It melts the surface of the material using high heat. Once melted the material expands and causes a raised mark. A laser etcher changes the surface finish of metals and also alters the reflectivity and helps enhance contrast.

Thus, although all these processes make use of laser technology, each process is very different in nature.

Working of Busbar Bending-Cutting-Punching Machine

A busbar is a metallic strip or bar that is used in electric power distribution. It is employed for local high current power distribution and is fitted inside the switchgear, panel boards, and busway enclosures. They are generally kept uninsulated and are employed to connect high voltage equipment at electrical switchyards, and low voltage equipment in battery banks. A busbar has sufficient stiffness to be supported in the air by insulated pillars.

Busbar Bending-Cutting-Punching Machine

A busbar bending-cutting-punching machine is technologically advanced machinery capable of performing the operation of bending, cutting, and punching simultaneously. It is used for producing a busbar and is capable of performing almost all the required operations. The machine has very high productivity and hence is synchronous with the growing demands of the numerous industries. The busbar machine has an independent station for performing the operation of bending, cutting, and punching. These stations perform the required task in parallel, thus ensuring higher rates of production.

Bending is a type of manufacturing process and it is used to produce a V-shape, U-shape, or channel shape along the straight axis in ductile materials, mostly sheet metals. The bending machine also has special tools for its bending station. The bending tool is unhardened & ungrounded and the speed at which the bending operation is carried out is 5mm/Sec. The machine also consists of a gauge stopper.

Another operation which the machine performs is that of cutting. The workpiece is being cut into the desired length with the help of the busbar cutting machine at the cutting station. The shearing station boasts of a hardened & grounded HCHCr Blade to carry out the cutting operation effectively. The cutting machine performs the cutting operation at the speed of 6 strokes/min. The oil tank capacity of cutting station is about 75 liters. The station is powered by a 5HP motor that is equivalent to 3.7KW. It also comprises of a gauge stopper.

Bus bar bending cutting punching machine

The busbar punching machine has one suitable die & punch on its punching station. Punching is a forming process in which a tool is forced through the workpiece to create a hole by shearing. The machine has a separate foot switch for every station, i.e. punching, cutting, and bending. There is a provision made for special tools at the punching station of the machine. The punching operation is performed at its station with a speed of 13 strokes/min.

The busbar bending-cutting-punching machine is a highly compact and versatile machine. The machine is powered by the main drive motor. It comprises of a compact hydraulic power pack with a built-in control panel. The machine is highly durable and capable of giving out higher outputs. A high-speed version of the machine is also available. It boasts of hydraulic and electrical components of international standards that ensure the long life of the machine without any requirement of maintenance.

Summary: The machine has 3 different stations for bending, cutting, & punching. These 3 operations are carried out at their respective stations and thus it proves to be a versatile machine. Gauge stopper is provided at all three stations. The punching station consists of one suitable die & punch.

The Bottom Line: A busbar is being extensively used for electric power distribution. It is manufactured using a busbar bending-cutting-punching machine. The machine has separate stations for all the 3 process and thus the simultaneous operations help in greater productivity. The machine is also available in a higher speed version.

Applications of Laser Marking Machine

Laser marking is a procedure of leaving marks, symbols or any pictorial notations on the surface of an object. It also involves a colour change due to chemical/molecular alteration, charring, foaming, melting, ablation, and more. The fiber laser marking machine makes use of a fiber laser source. The laser generated is transmitted with the help of an optical fiber that cooperates with high-speed scanning galvanometer, used for workpiece marking.

The laser marking machine utilizes rare earth doped fibers as the gain medium. The presence of fine fiber core in the fiber laser eases the task of producing high power density in the fiber under the action of pump light. It eventually results in an inversion of the number of particles of the laser working substance. As a result, a phenomenon known as “Laser oscillation” occurs, when a positive feedback loop is formed to induce resonant cavity. The wavelength of the incident laser can be made adjustable in order to make it felicitous for numerous applications. 

Summary: Laser marking machine is used for the process of laser marking that is a process of leaving marks, symbols or any pictorial notations on the work surface. The machine makes use of a laser source. The wavelength of the incident laser emanating out of the source can be altered as per the application for which it is employed.

laser marking machine

Features of Laser Marking Machine
The laser marking machine is a highly integrated machine comprising of a superior laser beam possessing uniform power density. The machine is designed in a manner to ensure that its anti-reflection ability with optical isolator is increased. This makes the machine to perform the operations effectively on high reflective materials, such as- aluminum, copper, gold and silver without the shadow, etc. The laser marking machine has the ability to operate at high speeds without any deviation. The machine shows good stability for a small volume production batch. The machine is tweaked with the latest technology and has adopted an embedded operating system that imparts a good touch interface and powerful control system. The machine is capable of meeting most of the industrial demands and its compact structure makes it a very effective piece of machinery.

Fiber Laser Marking Machine Benefits
The fiber laser marking machine has great working functionality and is capable of operating up to 100,000 hours. The small size of the machine enables it to consume less power for a required operation with the power consumption remaining below 500W. It has a very high efficiency for photoelectric conversion producing negligible faults in the operation. The laser marking machine has compact structure and high system integration. The fact that it is compatible with software like CorelDraw and AutoCAD makes it the machinery of utmost importance in industries. It also supports different extensions, such as- PLT, PCX, DXF, BMP, etc. and directly uses SHX and TTF fonts.

Summary: The fiber laser marking machine consists of a superior laser beam that has uniform power density. It is highly effective on reflective materials, like- aluminum, copper, etc. The laser marking machine is capable of working up to 100,000 hours ensuring high durability. The small size also enables it to consume a lesser amount of power.

Applications
The laser marking machine has wide applications and is primarily employed for marking logo, words, brand, date, series number, batch number, sign, drawing, photo, QR code, etc. on the surface of metal & non-metal material. The range of metals include stainless steel, alloy, metal plate, aluminum, silver, gold, etc. and the non-metals include plastic: engineering plastic and hard plastic, etc. It is also used in electronic equipment, such as- integrated circuits, mobile communications, precision instruments, glass watches and clocks, computer keyboards.

The Bottom Line: The laser marking machine is used for a wide variety of marking applications, such as- logo, words, brand, date, series number, batch number, sign, drawing, photo, QR code, etc. on the surface of metal & non-metal materials. The materials include- stainless steel, alloy, engineering plastic and hard plastic, metal plate, etc.