If the excitation with the laser welding system in response to the large number of parameters can be precisely controlled, the precision of laser welding is completely guaranteed. Throughout the welding process, the workpiece is a response to fluctuations in the dominant factor associated with these factors, the plasma wave spectrum bandwidth for a minimum of 10MHz, while the mechanical movement, especially with the movement of fluid vibration, lower bandwidth, so the detection Laser welding produces the sound and light emission signal is an important way to monitor the welding conditions, identify the composition of these signals, diagnosis-specific error conditions, to optimize the welding process to eliminate defects in welded joints and welding process provides a real-time control possible. The worker should pay attention to self protection during manufacture process ofgreen laster pointer.
In order to make a variety of data and processing rate of more stringent requirements, these should be recorded and analyzed sound and light signals, and converts it into control signals back to the feedback loop to drive an electromechanical device, the laser welding systems, weld and compensation joint defects. Laser welding, there are two basic ways: conduction welding with deep penetration (holes) welding. Both ways the most fundamental difference is: the former pool surface remain closed, while the latter was the laser beam penetrates into the pool hole. Conduction welding small perturbation of the system, because the laser beam of radiation does not penetrate the welded materials, therefore, in the process of conduction welding seam gas can not easily be penetrated; and deep penetration, the holes can lead to continued close pores. Conduction mode welding and deep penetration welding can also be in the same process of conversion by conduction to the hole pattern is applied to the workpiece depends on the peak laser power density and laser pulse duration. The equipment of manufacturingGreen laser pointershould be protected well.
Laser pulse energy density of the laser welding can be time-dependent laser material interaction during welding by a shift to another way that the interaction process in the weld can be formed in the conduction mode, then change way for the hole. You can adjust the laser welding process the extent of interaction of various factors, making holes in the pulse interval can be set up after the contraction phase, thereby reducing the possibility of air intrusion and reduce the tendency to produce pores; You can also adjust the laser power density distribution over time , to reduce the pool of the thermal gradient, solidification cracking of welded joints to reduce the tendency to produce. One of the main advantages of laser welding is able to adjust the laser interaction with materials to optimize the overall performance of welded joints, in the contemporary art laser welding system, this optimization primarily through computer-controlled laser power to achieve. The workshop has imported a set of very advanced equipment of processgreen laster pointer.
By the light, sound or plasma monitoring system back to the feedback, the laser power in real time to adapt to changes in welding conditions change. In the laser welding process gradually been accepted and adopted after the closed-loop control system can guarantee that under the conditions of industrial production, optimizing the welding process, without operator intervention. Laser, a high-tech fields that mixed people: R & D level almost with the world, the level of industrialization is a big difference. Recently, Huazhong University of Science hosted by the Fifteenth National Conference on Laser, many academicians and scholars in the academic exchange at the same time crying out: the new century, China's laser industry is at a critical moment against the current, only to actively promote the industry, participate in international competition and cooperation to the rapid development of a slight delay that will repeat the microelectronics industry, the kinds of mistakes. green laster pointer can gain the higher quality with the help of the new equipment.
40 years, China's basic research in laser technology has followed the international top level. In 1960, the world's first ruby laser was born in the United States, Bell Labs. Only one year, China's first advent of lasers in Changchun. Published in the U.S. the authority of the academic journal "International Society for Optical Engineering meeting," on almost each have 1 / 4 of the paper is published by the Chinese people. However, to bring industry, not so scenery. End of last year, total output value of China's laser processing more than 200 million yuan, accounting for only 1% of total global sales of about; domestic high-end lasers, laser equipment market has long been occupied by foreign products. The worker is carefully operating the machine of processinggreen laster pointer.
