1000W Laser Welding Machine For Sale China

Laser welding machine for sale uses a pulsed laser with a wavelength of 1064nm generated by the laser to radiate the surface of the workpiece after beam expansion, reflection, and focus. The surface heat is diffused to the inside through heat conduction, and the width, energy, and peak power of the laser pulse are precisely controlled through digitalization. With parameters such as repetition frequency, the workpiece is melted to form a specific molten pool, so as to realize the laser welding of the workpiece, and complete the precision welding that cannot be achieved by the traditional TIG welder & MIG welder.

Principle of laser welding machine for sale

Laser welding is the use of high energy density laser beam to melt materials, which has the advantages of fast welding speed, high strength, narrow welding seam, and high flexibility. It not only weld common carbon steel and stainless steel, but also weld materials that are difficult to weld by traditional welding, such as aluminum and copper.

How does Laser Welding Machines work?

Laser Welding Technology

The laser welding technology works based on the principle of heat generation by the laser source. Sources of laser in the method also vary and different sources of lasers are suitable for different types of materials and their physical and chemical properties.

Thus, when the beam of high laser energy is focused on a spot of the metal sheet it creates the metal sheet to melt at the spot. The depth of the hole is managed by the various methods of welding and varies accordingly.

This process takes place at the seam of the two metals or materials to be welded together. However, there are multiple methods of laser welding that depend on the type, thickness, and quality of materials to be weld.

Laser Welding Methods

There are multiple methods of laser welding that are largely in use in various industries. Let’s discuss some of these laser welding techniques for you to get a better idea of the process of laser welding.

laser welding

Conduction Mode Welding

Conduction welding is a method that provides you with a wide weld that is shallow. There is a further categorization of this method of welding as follows:

Direct heating method

The direct heating method uses thermal conduction from the source of heat. Subsequently, this results in the melting of the base material and ultimately making the weld with the other material.

Energy transmission method

In comparison, the energy transmission method is slightly different and makes use of an intermediate material that conducts the heat from the source to the weld. Usually, it is the absorbent ink that acts as the intermediary material for the transfer of energy.

Similarly, butt joints are also possible by directing the heat energy at an angle of the joint.

Conduction/Penetration Mechanism

This mechanism works on medium energy and creates a deeper hole than the conduction method but is shallower than the penetration method.

The other way to weld by using a laser is by using the keyhole method. This method focuses the beam of the laser onto the material and creates deep penetration of heat. Thus, a hole is created on the spot by this method.

This hole is later filled with metal vapor that forms a bonding material with the other metal. Therefore, the resulting weld makes a great depth to width ratio and creates tight welds that are durable.