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Views: 425 Author: SIEME Publish Time: 2021-05-07 Origin: SIEME LASER METAL CUTTER
The main application of laser cutting machines in the construction machinery industry is sheet metal processing, and fiber laser cutting machines are generally used. Cutting applications mainly include slender workpieces, sheet metal parts with many holes, reserved process gaps for sheet metal parts, production of sheet metal templates and drilling samples.
In addition, because the laser cutting machine generates more concentrated heat during cutting, the heat-affected zone on the workpiece is small. The use of laser cutting machine in the construction machinery industry to cut the workpiece can effectively control the thermal deformation of the workpiece, especially for thin and long parts that require straightness. The workpiece has a better effect. When the length of the workpiece reaches 5500mm or more, the "micro-connection" function of the cutting machine itself can be used to effectively control the straightness of the workpiece.
In the construction machinery industry, laser cutting round holes, when facing a specific plate thickness, as long as the diameter size of the round hole of the workpiece is greater than or equal to the corresponding minimum diameter value, and the roughness and diameter size requirements are within the guaranteed capacity of the cutting machine The laser can be used for direct blanking, eliminating the need for drilling procedures and improving labor productivity. For some workpieces with many holes, the laser dot function is used to determine the position of the hole, which saves the time for positioning holes for the subsequent hole drilling process, and also saves the production cost of the drilling template, which not only improves the production efficiency, And the accuracy of the product is improved.
The process gap reserved for sheet metal parts is also called crack arrest groove or process hole. In sheet metal production, the design of process gaps generally has three forms: the first is that two or more bending parts are adjacent,the second is that the bending part of a certain edge is partially in the length direction Bend, For the second process gap, leaving a × b rectangle. If you use a laser cutting machine to cut a slit of length a directly at this position when cutting, for some requirements For relatively tall workpieces, the laser cutting machine can be used to directly reserve the form of slitting. In the third form, when the two ends of the sheet metal part cannot be supported on the lower die of the bending machine in a suspended position, the workpiece will be deformed. In this case, you can use the laser cutting machine to predict the workpiece during the blanking. Set aside a slit to prevent the workpiece from deforming during bending. T
For some sheet metal parts in the construction machinery industry, for some irregularly shaped workpieces, in order to improve the accuracy and efficiency of detecting the blanking parts, laser cutting machines are used to make blanking detection templates, such as the support angles on the bulldozer ripper, and the bucket rod of the excavator. And the big head plate on the boom, etc.; for some rolled-formed workpieces, it is necessary to use a template that matches the arc to assist in the production and inspection of the workpiece during the production and inspection of the workpiece. In order to improve the accuracy of workpiece production and the efficiency of inspection, it is usually Next, use laser cutting to produce prototypes of these workpieces, and use the marking function of the laser cutting machine to mark the boundaries of arcs and straight edges on the prototypes, such as the arc plate of a bulldozer, the arm and the moving rod of an excavator. Bent plates and buckets of the arms.
