Laser cladding is a process that uses laser as a heat source to apply metal coatings to the surface of parts. This process can produce strong metallurgical bonding, and at the same time, the dilution degree of the base material is the lowest, so as to enhance the corrosion resistance, wear resistance and wear resistance of the metal.
What is laser cladding?
Laser hot wire cladding (lhwc) is a hybrid cladding surfacing process, in which the wire is preheated by resistance heat during surfacing. This process can significantly improve deposition efficiency and material utilization. The height of cladding layer can be predicted by measuring the width of molten pool.
Why use laser cladding?
Laser cladding, also known as laser metal deposition, is a technology of adding one material to the surface of another material. Laser cladding process can improve the surface properties of parts, including better wear resistance, and repair damaged or worn surfaces.
Is laser cladding additive manufacturing?
On this basis, laser cladding has developed into a powerful three-dimensional (3D) additive manufacturing technology by stacking and depositing material layers. At present, a variety of materials can be processed.
Is it laser cladding welding?
The laser cladding uses the same concept as the arc welding method, except that the laser is used to melt the surface of the substrate and add materials, which can be in the form of wire, powder or strip. Laser cladding is usually performed using CO2, Nd: YAG and recently fiber lasers.
What is laser hardening?
Laser hardening (also known as laser surface hardening) is a heat treatment process used to improve the surface strength and durability of parts. It uses a high-power diode laser to apply energy to the local heating area of the component surface.
What is the biggest advantage of using laser cladding technology in the manufacturing industry?
Advantages of laser cladding compared with arc welding and thermal spraying, laser cladding can obviously provide lower thermal deformation, reduced expansion, low porosity and better surface uniformity of new surface layer.
What are the applications of cladding?
It is usually used to improve mechanical properties or increase corrosion resistance, repair worn parts and manufacture metal matrix composites. The surface material can be directly laser cladding to the high stress parts, that is, forming a self-lubricating surface.
When was laser cladding invented?
The laser cladding process was developed to improve the surface characteristics of metal parts, mainly in terms of corrosion resistance and wear resistance. It took advantage of the advantages of laser created by Maiman in the 1960s and was considered a good scientific invention at that time.
What is laser cladding dilution?
What is dilution? This is defined as the mixing amount of the cladding and the base material. What is the typical heat affected zone of laser cladding? Typically 0.5 to 0.75 mm (0.020 to 0.030 inch).
How is laser surface hardening done?
In the laser hardening process, also known as surface layer hardening, the energy from the laser beam is directly applied to the surface of the component. The surface layer is heated to the hardening temperature (> 1000 ° C) in a very short time in a reduced area.
What is the use of laser?
Lasers are used for optical disk drives, laser printers, bar code scanners, DNA sequencing instruments, optical fibers, semiconductor chip manufacturing (lithography) and free space optical communication, laser surgery and skin treatment, cutting and welding materials, military and legal enforcement equipment.
Source: Shanghai duomu Industrial Co., Ltd
