Introduction to Common Sheet Metal Laser Technology

In the development of sheet metal processing,sheet metal laser processing technology is rising day by day,and it has brought a huge impact on sheet metal processing,common sheet metal laser processing technologies are: laser cutting technology, laser drilling technology and laser welding technology The following are introduced as follows:

Laser cutting machine has a high degree of flexibility, fast cutting speed, high output power, short product production cycle, and has won a wide range of shopping malls for customers. The useful life of this skill is long Laser cutting machines are mostly used for sheets exceeding 2 mm in thickness abroad. Many foreign experts jointly believe that the next 30-40 years will be the golden period for the development of laser processing skills.

Laser cutting has outstanding cutting effect and precision, and it is very simple to operate. It has more advantages than machine cutting, such as fast cutting speed, narrow cutting seam, high cut smoothness, small deformation, thermal influence With its small area and advanced power features, cutting is now not only limited to two-dimensional plane cutting, but also to three-dimensional cutting.

Generally speaking, it is recommended to use a laser cutting machine for cutting metal materials such as carbon steel plates within 12mm and stainless steel plates within 10mm.The laser cutting machine has no cutting force and no distortion in processing. No matter it is frugal or messy parts,it can be cut by laser precision forming at a time,the economic benefit is good.

2,Laser drilling technology

Laser drilling technology is suitable for circular holes with smaller diameters in addition to larger diameter circular holes.In some well-known laser drilling companies,the diameter can be less than 0.2mm.Processing of small holes up to 7mm in depth.

The basic structure of the laser drilling machine includes a laser, an overhead, a cooling system, a numerical control device, and a control panel.The overhead will extract the laser beam on the position of the hole to be processed on the data.After appropriately selecting each processing parameter,the light announced by the laser .The pulse can be processed to the required hole.

3,Laser welding technology

Laser welding is an efficient and precise welding method that uses a high energy density laser beam as a heat source.It is mainly used for welding thin-wall materials and low-speed welding.The welding process is of thermal conductivity type,that is,the laser radiation heats the surface of the workpiece.The heat of the surface is dispersed to the inside through heat conduction.After controlling the parameters such as the width, energy,peak power and repetition frequency of the laser pulse,the workpiece melts to form a specific molten pool.

Laser welding can assist us to complete the welding of castings such as equipment.Many laser weldings gradually reduce the weight of car bodies and have high quality and safety functions.In addition, the use of cooperative sheet metal processing skills has become the current domestic car body processing skills for the bravery.

Laser deep penetration welding usually uses the connection of successive laser beam completion data.  The metallurgical physical process is very similar to electron beam welding,that is,the energy conversion mechanism is completed through the "small hole" structure. Under a sufficiently high power density laser irradiation,the material transpiration occurs and forms a small hole. This vapor-filled small hole is like a black body, absorbing almost all the energy of the incident beam. The equilibrium temperature in the cavity is 25,000 degrees. The heat is transferred from the outer wall of the high-temperature cavity,melting the metal surrounding the cavity. 

In general, with the continuous development of sheet metal processing technology,the demand for laser processing technology is becoming more and more obvious. At present,China's sheet metal laser processing technology has begun to take shape,and advanced laser technology is supporting the application and assistance of processing will become the key to improving the progress of domestic sheet metal processing and production!