What are the femtosecond laser drilling devices?

1, femtosecond laser drilling equipment with laser

Laser is an important part of the laser drilling equipment, its primary role is to the power system to supply the electrical energy to a certain conversion power into laser energy. According to the nature of the working material of the laser, it can be divided into gas lasers and solid-state lasers. The gas lasers used for punching are mainly carbon dioxide lasers, while the solid lasers used for punching are mainly ruby lasers, neodymium glass lasers and YAG lasers.

Carbon dioxide laser has many special advantages, its conversion power ** other lasers, can be considered many non-metallic materials (such as plexiglass, plastics, wood, multi-layer composite panels, quartz glass, etc.) absorbed. *Importantly, CO2 lasers are capable of high power output compared to other lasers. When combined with other technologies, they are capable of high-speed punching, with higher speeds of up to 100 holes/second, which is difficult to achieve with other lasers.

In spite of this, due to the carbon dioxide laser focusing, dimming are not convenient, equipment, one-time investment is also relatively large, in the laser perforation equipment is not as common as the other three lasers. Solid-state lasers with its * special strengths in laser perforation is widely used. Its main advantages are: (1) short output wavelength. (2) The output light can be transmitted by general optical materials. (3) small size of the machine, easy to use and protect, the price ** carbon dioxide laser.

2, laser perforation with machine tools

Laser perforation with machine tools simple and universal way for three-dimensional machine tools. Two-dimensional movement in the horizontal plane, to X, Y shows that the two axes are straight with each other, * three-dimensional Z-axis and Z-Y plane straight. Each dimension can be driven by a stepping motor to run a ball screw on a linear ball guide, and its accuracy is confirmed by the accuracy of the screw and the accuracy of the ball guide. If equipped with a microprocessor system, the three-dimensional machine tool is capable of completing the laser processing of various holes in the plane and a group of holes in a certain scale. When the need for a series of holes in the pipe or barrel-shaped material for processing, the machine should have five-dimensional function, in addition to the three-dimensional previously mentioned, the addition of two dimensions is the X-Y plane 360 degrees of rotation, we define it as the A-axis, the X-Y plane in the Z direction of the 0-90 degrees of skew, we define it as the B-axis. Such a variety of types of laser perforation processing, five-dimensional worktable can serve. In the case of the need to save equipment investment, the B-axis of the CNC can be changed to manual. This can save money, but also basically can finish all the punching task.

3, laser perforation machine equipment

Over the years, the level of domestic and foreign laser perforation machine in a rapid development stage, the laser output power gradually increased, the pulse width is becoming narrower and narrower, wider and wider frequency scale, and other parameters are also increasingly reclining in the direction of favourable to the perforation of the development. The flexibility of the light guide system and the control part of the laser perforation machine is constantly improving, making the scale of perforation is constantly expanding. At present, there are dozens of laser perforation machines that have constituted products in China, and in addition to universities, colleges and research institutes, the number of companies specialising in the operation of production of laser equipment is also gradually increasing. This shows that China's laser processing is moving towards industrialisation.