由于激光切割加工速度不断提升，促使工件的加工热所影响的范围逐渐减小，整个工作在切割加工中所出现的热变形量也随之减小。同时，由于二氧化碳激光器的稳定性逐渐提高，也促使激光切割面的光洁度随之增强。另外，工件静止的加工方式大大减少了振动。由于激光切割加工的精度水平的不断提高，使得激光切割加工的农机钣金件也逐渐发生改变，由原来的低精度件逐渐转向高精度件发展。从生产实际情况来看，原先复合机APELIO Ⅱ357通常是加工材料厚度低于2mm 比较薄的零件，主要加工的是纺机的外包容件。而现在激光切割机既可以加工上述的零件，又可以加工材料厚度于3mm--4mm或者大于6mm的中厚零件。这类零件大多数是结构件、传动件以及主要的工作件，对于加工精度要求比较高，其中，有一部分的零件已经接近加工件的精度要求。采用激光切割的加工零件，不仅具备变形量小、加工面光洁度高的特点，同时还有工序毛刺小甚至没有、零件的尺寸大小一致性好等特点，在农业机械的装配尺寸精度控制中具有最大的作用。
Laser cutting technology has more cost advantages than traditional processing technology, and laser beam is a point situation, so it is very flexible in two-dimensional plane processing. In the process of laser cutting machine, only the cutting head is moved, but the workpiece is still, without the need to set the micro connection, it is helpful to the laser in the cutting process. Its computer CAM system does not need to make a manufacturing process for a single part, just to optimize the layout of the results and the cutting route, and then start the laser to be processed. But in the compound, the mold setting, the laser cutting route presupposition, and the setting of the connecting part are needed, then the next step can be made. By contrast, laser cutting machine and compounding machine, laser cutting process preparatory work time greatly reduced. In the actual application, when the machine is processed, because the clamp is dragging the workpiece and the die has some drop amount, the dead zone will appear on the raw material, but the laser cutting machine is still at rest when cutting the workpiece, so there is no dead zone, thus the utilization rate of the raw material is improved and the efficiency is reduced effectively. The cost of raw materials consumed by a single process. In recent years, the machining accuracy of laser cutting has been gradually improved, which greatly simplifies some processing procedures and reduces the processing cost of single parts. At the same time, the machining time of the workpiece is greatly reduced because of the rapid improvement of the cutting speed of the laser cutting machine. At the same time, the individual production efficiency of the operator has also been greatly improved.
The accuracy of laser cutting products is further improved.
As the speed of laser cutting is increasing, the range of the workpiece's processing heat is gradually reduced, and the amount of thermal deformation that appears in the whole work in the cutting process is also reduced. At the same time, as the stability of CO2 laser increases, the smoothness of laser cutting surface will also be enhanced. In addition, the static processing of the workpiece greatly reduces the vibration. Because of the continuous improvement of the precision level of laser cutting, the laser cutting of agricultural machinery sheet metal parts has also been gradually changed, from the original low precision parts to the development of high precision parts. From the actual situation of production, the original composite machine APELIO II 357 is usually a part with a thinner thickness less than 2mm, which is mainly processed by the outsourced components of the spinning machine. Now, laser cutting machine can process the above parts, and also can process thick or medium thickness 3mm--4mm or larger than 6mm. Most of these parts are structural parts, transmission parts and main work parts. The requirements for machining precision are high, in which part of the parts are close to the precision requirements of the machining parts. The laser cutting parts not only have the characteristics of small deformation and high finish of the machining surface, but also have the characteristics that the burr is small or not, and the size and size of the parts are in good agreement. It has the greatest effect in the precision control of the assembly dimension of agricultural machinery.
Enhance the technological content of products and enhance the competitiveness of enterprises
Laser cutting can be used to process parts that are usually difficult to be machined. For example, most of the stainless steel box in a series of dyeing and finishing machines, it has a lot of different holes on it. Because the box is large, it is difficult to process by ordinary processing method, but the laser cutting can satisfy the requirements of this kind. The time needed to process the same part is very short and the accuracy is very high. The technological content of products has also been constantly improved, so the market competitiveness has also been enhanced.
标签:   钣金加工 激光切割加工