During the Cold War broke out in the last century, both the United States and the Soviet Union attached great importance to the actual development of laser weapons and accelerated the development of laser weapons. In 1983, the US Reagan administration proposed the "Star Wars" program, highlighting the superpower will be used in the national military weapons and equipment aspirations and ambitions, the purpose is through the deployment of large-scale green laser pointers weapons in the space on the enemy's satellites, missiles , Ships and even the implementation of precision strike on the ground fortress, which has become a follow-up science fiction film numerous times the classic plot.
Laser weapons are new concept weapons that use high-energy beams instead of conventional chemical warheads for physical and electrical damage. It is a directional energy weapon that directs a long-range target by a high-energy laser beam emitted in a certain direction. It consists mainly of a laser that generates a light source and a beam director with tracking, aiming and firing, and is damaged by heating, radiation, etc. Way to attack the target. In laser machining, blue laser pointer light emitted from the laser collimation and focusing lens by the sink of the cutting head to a point (focus), operators need to ensure that the laser beam machining in the nozzle is the center, and adjust the distance from nozzle plate surface (as the plate thickness and spray nozzle), high pressure gas, and with the completion of the laser beam cutting operation.
Laser weapons in accordance with the use of combat can be divided into tactical laser and strategic laser two. Tactical laser is used for photoelectric confrontation and tactical air defense of the laser weapons, can instantly blind enemy officers and soldiers of the eyes and destruction of photoelectric sensors to paralyze combat equipment, can also burn directly through the enemy tanks, aircraft, unmanned aerial vehicles, missiles and other important Military target. The strategic red laser pointer is used to attack strategic missiles and in orbit satellite laser weapons, through the ground or space orbit deployment, can destroy the enemy satellites in wartime in order to obtain the system of natural rights, and the implementation of enemy ballistic missile defense.
This is related to the specific process parameters, material type and beam quality. Deformation: as the laser cutting is essentially thermal cutting, the plate inevitably exists deformation, and the excellent cutting should minimize the adverse effects as much as possible. Particular attention should be paid to the cutting of thin plates. In general, the cutting speed is faster, more narrow, cutting gas flow increases, the deformation of the smaller. In the market of laser processing equipment, laser cutting is one of the most important application of laser cutting machine, cutting machine, punch substitution effect has become more and more obvious, the market is more popular following the laser marking applications, is expected to cut high-end high power laser speed, high precision, and large format cutting thick plate for the characteristics of the cutting machine equipment market has a larger growth space.
Generally speaking, the thinner the material thickness is, the lower the roughness of the cutting surface is; the lower the surface roughness is when cutting with nitrogen or argon than the oxygen. In addition, it is also related to the relative position of the machining time spot and the material thickness direction. Although the strategic laser weapons have a great use of the prospects, can completely change the traditional strategic deterrence model and break the existing strategic balance, but because of the need for a lot of energy as a basis, and human energy storage equipment miniaturization and micro-nuclear power generation and other important technologies before the problem is solved, it is still difficult to realize the real use of the actual 200mw green laser military equipment and combat.
[ جمعه 31 شهريور 1396 ] [ 12:01 ] [ michale ]