Laser pipe cutting machine is the main equipment for cutting pipes. When used, whether it is square pipe, round pipe or shaped pipe, it can effectively cut the pipe. It has more advantages than other equipment in cutting pipes. With its professional and stable cutting effect, it quickly occupied a variety of metal processing industries, especially automobile manufacturing, oil extraction, machinery manufacturing and so on.
However, there are many problems when using laser pipe cutting machines. For example, the laser pipe cutting machine has an error when cutting the pipe, and the laser pipe cutting effect is not good. So, how does the laser pipe cutting machine produce the pipe cutting error? Here are the details:
Workpiece geometry error: Due to various reasons, the surface of the processing object is uneven, and heat will be generated during the cutting process. In this way, the surface of the metal plate is easy to deform, and due to the uneven surface, it will also produce laser focusing and surface. The position and ideal position of the surface of the object to be processed vary randomly.
Material cutting thickness exceeds the standard: material cutting thickness exceeds the standard. Take 3000W as an example: The thickness of the plate can be cut by the laser pipe cutting machine is less than 20. The thinner the sheet, the easier it is to cut, and the better the quality. If the sheet is too thick, the laser tube cutter will be more difficult to cut. Under the conditions of ensuring cutting, there will be errors in the processing accuracy, so the thickness coefficient of the sheet is determined.
Programming error: During the processing of the laser pipe cutting machine, the processing path on the complex surface is fitted with straight lines, arcs, etc., and there is an error between these fitted curves and the actual curves. These errors become the actual focus, and there is an error between the relative position of the machined target surface and the ideal programming position. Some instructional programming systems also introduce biases.
Focus position error in the laser cutting process: In the cutting process of the laser cutting machine, there are many factors that will change the relative position of the focus and the surface of the processed object, which is also related to the surface smoothness. The shape clamping method of the processed product, the geometric error of the machine tool and the long-term load of the machine tool will be deformed. The thermal deformation of the workpiece during machining can cause the laser focusing position to deviate from the ideal given position.
English