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Four major applications of laser cutting machines in the construction machinery industry

Views:8     Author:Site Editor     Publish Time: 2019-11-09      Origin:Site

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The main application of laser cutting machine in the construction machinery industry is sheet metal processing, generally using CO2 laser cutting machine or fiber laser cutting machine. Cutting applications mainly include slender workpieces, sheet metal parts with a large number of holes, reserved process gaps for sheet metal parts, and the production of sheet metal samples and drill samples.


1. Application in slender workpieces


       In addition, the laser cutting machine is relatively concentrated due to the heat generated during cutting, and the heat affected zone of the workpiece is small. The engineering machinery industry can effectively control the thermal deformation of the workpiece by cutting the workpiece with a laser cutting machine, especially for slenderness requiring straightness. The workpiece has a good effect. When the length of the workpiece reaches 5500mm or more, the straightness of the workpiece can be effectively controlled by the "micro-connection" function of the cutting machine itself.


2. Application in sheet metal parts with many holes


       In the construction machinery industry, laser cutting round holes, when facing a specific plate thickness, as long as the workpiece hole diameter size requirement is greater than or equal to the corresponding minimum diameter value, and the roughness and diameter dimensions are required within the guarantee capability of the cutting machine. Both can be directly cut by laser, eliminating the drilling process and improving labor productivity. For some workpieces with more 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 drill template, which not only improves the production efficiency, And improve the accuracy of the product.


3. Application in the reserved process gap of sheet metal parts


       The process gap reserved for the sheet metal part is also called the crack stop or the process hole. In the sheet metal production, the design of the process gap generally has three forms: one is that two or more bending parts are adjacent, as shown in Fig. 1; the other is that one side of the bending part is partially bent in the longitudinal direction. ,as shown in picture 2. For the second process gap, the traditional form is shown in Figure 2, leaving a rectangle of a × b, if a laser cutter is used to cut the slit of length a directly at the position during cutting, for some requirements For higher workpieces, the laser cutter can be used to directly reserve the form of the slit. In the third form, when the sheet metal is bent, the workpiece cannot be deformed when the support is in the suspended position on the lower die of the bending machine. In this case, the laser cutting machine can be used to pre-cut the workpiece. Leave a slit to prevent the workpiece from deforming during bending.


4. Application in the production of sheet metal and drilling samples


       In the construction machinery industry, some sheet metal parts, for some irregularly shaped workpieces, in order to improve the accuracy and efficiency of the inspection of the blanks, the laser cutting machine is used to make the blanking detection model, such as the supporting angle on the bulldozer ripper and the excavator stick. And the head plate on the boom; for some workpieces formed by the coil, it is necessary to use the template to assist the production and inspection in the production and inspection of the workpiece. In order to improve the precision of the workpiece and the efficiency of the inspection, the general situation Next, use the laser cutting and blanking to produce the samples of these workpieces, and use the marking function of the laser cutting machine to mark the boundaries of the arc and the straight edge on the template, such as the curved plate of the bulldozer, the stick of the excavator and the moving Bending plates and buckets of the arms.


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