laser technology use in the metal processing

Since 1960, U.S. scientists Maiman developed the first ruby laser, especially with the world science and technology with the needs of economic development has been the rapid development of laser technology developed more rapidly in the last decade, which also greatly promoted the laser processing technology The more widely used. Laser with ordinary light compared to the four characteristics of the monochromatic (single wavelength), the coherence of the directionality and high light intensity. The laser beam is easy to transmit its time characteristics and spatial characteristics can be controlled separately by the focused small spot can be obtained, having a very high power density of the laser beam can be melted, any material of the gasification precision and rapid processing of the partial area in the process may be performed small heat affected zone input work piece heat and thermal deformation is small; processing efficiency, easy to implement automated laser technology is a comprehensive high-tech in optics, mechanics, electronics, and other disciplines, the same laser processing equipment involves many disciplines and therefore decided to Throughout its high-tech and high-yield international and domestic laser application field situation after years of research and development and improve the contemporary lasers and laser processing technology and equipment have been quite mature to form a series of laser processing technology. In addition a variety of new laser processing technology is still emerging from the actual proportion of the international scope of laser processing is mainly used for cutting, welding, surface treatment, marking and punching. Two-dimensional and three-dimensional laser cutting accounted for 65% of the laser welding laser applications accounted for about 20% of the laser drilling, marking accounted for less than 10% of the laser surface treatment including laser transformation hardening, laser cladding, laser surface alloying and laser surface melting condensate and other accounts for only about 5%. More and more users are aware of the excellent performance of the laser processing and high flexibility, high efficiency from the view of the development and application of the domestic laser processing technology. In the field of aerospace, automobile manufacturing, switch industry, gear industry, railway locomotive manufacturing and metal materials processing industry has long been popular laser technology. 

Laser cutting characteristics and application 

Laser cutting countries the most widely used laser processing technology in many areas abroad. Example, car manufacturing and machine tool manufacturing industry with laser cutting sheet metal parts processing with the east off of the high power laser beam quality improve laser cutting the wide range of the object to be processed. include almost all metallic and non-metallic materials. For example, r may be the use of laser cutting This is also the advantage of laser cutting of a material of high hardness, high brittleness, high melting point, the complex shape of the three-dimensional parts.

Two   The main advantage of the laser cutting

Laser cutting non-contact optical thermal processing, the workpiece can be known as the "never wear universal tool for any form of close nesting or sets cut, raw materials underutilized. Non-contact machining, machined parts without any deformation. 

2 the efficiency of the laser cutting. 1 mm thick aluminum plate, for example cutting speeds up to 40 m / min. High efficiency single piece geometrically reduce processing costs and even lower than the traditional processing methods. 

Laser cutting without tool and mold. Under computer control, direct implementation of a two-dimensional, three-dimensional on the board of any shape classes and flexible machining of the parts of the shell. Particularly applies to the many varieties of new product research and development stage, part of the processing of small quantities of rice gold Province go to the high cost of mold design, manufacturing costs significantly shorten the production cycle.

The 4. Laser cutting slit minimal slit Usually between 0.15-0.4 mm. The incision is smooth, no glitches even with spur gear finished processing the transfer of certain precision. 

, Characteristics and applications of laser welding 

Laser welding is a high-speed, non-contact, the the minimal deformation welding is very suitable for a large number of continuous online processing. With the development of laser equipment and processing technology of laser welding ability is increasing. 4kW laser welding of 1 mm plate welding speed up to 20 m / min, such as the bottom of the car of the automotive industry board splicing welding work. Laser welding the conduction weld penetration welding two. Global application of laser penetration welding. Laser welding is one of the important aspects of laser material processing lasers LF2700Ha technical applications.

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