Because of its excellent performance and excellent work quality, laser cutting is very widely used in the market, but we may still see less in our daily life, and it is not very familiar to it. Therefore, the application and abnormal problems of laser cutting and adding are introduced.
Laser cutting features: fast speed, smooth and smooth incision, generally no need for subsequent processing; small cutting heat affected zone, small plate deformation, narrow slit (0, 1mm~0, 3mm), no mechanical stress, no shear burr, high precision, good repeatability, no damage to the surface of the material; NC programming, can be machined arbitrarily The plan can cut the whole big plate without any mould, and it is economical and time-saving. The laser can cut a lot of materials, including non metal sheets, such as organic glass, wood board, plastic and so on, as well as a variety of metal materials such as stainless steel, carbon steel, alloy steel, aluminum plate and so on. Pulse laser is suitable for metal materials. CW laser is suitable for non-metallic materials. The latter is an important application area of laser cutting technology.
Laser cutting principle: laser cutting is the use of high power density laser beam scanning material surface, the material is heated to thousands to thousands of degrees Celsius in very short time, material melting or gasification, then high pressure gas to melt or gasification material from the cutting seam to achieve the purpose of cutting materials.
激光切割加工的技术运用时的异常情况解析Analysis of abnormal conditions in laser cutting technology application
激光切割加工技术运用在金属管材上：Laser cutting technology is applied to metal pipes:
The laser cutting equipment in our country is being popularized rapidly. The rapid growth of the demand for CNC cutting talents and laser cutting technology also highlights the importance of laser pipe cutting equipment and numerical control cutting talent and technology.
One, professional pipe material technology
Numerical control laser tube cutting is more complex because of its high cutting efficiency. If it is not used properly, it will cause waste of pipes and low cutting efficiency. Through the professional software for cutting and cutting, the programming of drawing, blanking and cutting is made in advance to generate the NC cutting program, and then the full length automatic laser cutting of the large length metal pipe is made. Professional pipe packing software is the basis and prerequisite for achieving mass production, high efficiency and high quality cutting production of CNC tube cutting machines.
Two. Metal tube full stroke automatic laser cutting processing.
For the process requirements of automatic laser cutting for large length metal pipes, a unique double drive pneumatic chuck rotating mechanism (active shaft W, driven shaft W1) is used in the mechanical structure, and the left active axis W axis pneumatic disc rotating mechanism is fixed, the pipe is clamped and the pipe material is entered through the machine tool X, Y and W movement. The W1 pneumatic chuck rotating mechanism of the right driven shaft can move along the worktable along the worktable, and the full length automatic laser cutting of the metal pipe can be realized.
Three. Cutting technology of wood
Because of the cutting (especially for Fang Guancai of the tube diameter), the slag is attached to the inner wall of the tube, and most of the heat produced by the cutting is absorbed by the workpiece. When the cutting density is large, the pipe is often overheated, the corner and the square tube are over four angles, which seriously affects the quality of the cut and even can not be cut. Such problems can be used as follows:
1. The laser cutting and processing head belt high sensing servo system can ensure that the height of the cutting nozzle and the surface of the workpiece remain unchanged during the cutting process (the focus is constant), so that the cutting effect is not affected by the change of the workpiece surface;
2, the method of increasing the pressure of oxygen (6-8Mpa);
3. Improve the speed of the sharp angle by software.
Four. Numerical control cutting technology
CNC cutting is a large number of tubes, high efficiency, high quality cutting production mode, CNC cutting is the core of numerical control cutting system. At present, the quality problems in the cutting process of the laser tube, such as the overfiring of the cutting point of the parts, the over burning of the part corner, the slanting of the cutting surface, and the circular deformation or inability to close the circular parts, directly lead to the serious waste of the pipe and the low cutting efficiency.
CNC cutting technology refers to the cutting control software of the CNC system to provide advanced cutting technology and rich cutting experience, so that the cutting operators can achieve high quality and high efficiency by using the control system skillfully.
How to eliminate the abnormal problems of laser cutting in Fuyong?
First, the perpendicularity of the cutting surface is not good
1, the vertical light is not adjusted.
2, the adjustment of focal length is not correct;
3. The focus of the focus lens is too short.
Two, cutting edge edge melting.
1. The output of laser power is too large.
2, the cutting speed is too slow.
3, air blowing is not filtered or filtered enough;
4. The air pressure is too small.
标签:   大时代彩票 激光切割加工