Five axis machining center application in auto mould processing ( A)

Five-axis machining is an important part of nc machining, is widely used in shipbuilding, aerospace, automobile, light industry, medical and other high precision instruments and other fields. In the traditional mould processing, commonly used three axis machining center and vertical milling machining center to complete the workpiece.


five axis machining is an important part of nc machining, is widely used in shipbuilding, aerospace, automobile, light industry, medical and other high precision instruments and other fields. In the traditional mould processing, commonly used three axis machining center and vertical milling machining center to complete the workpiece. Along with the development of mold manufacturing and processing technology, the traditional vertical machining center and three axis machining center gradually exposed some shortcomings. At present, the ball head milling cutter has been widely used in the mold processing. Although the advantages of using ball head milling cutter in the mould processing is obvious, but if you use a vertical machining center, is the bottom line velocity is zero, poor smoothness. Use five axis machining center of mould processing, can be completely overcome the above shortcomings. Analyzed the advantages of the five axis machining center in the mold processing, discusses the application of five axis machining center in the mold processing.


1, the analysis of the advantages of five-axis machining


in five-axis machining, using flat end mill to keep the complex mold surface vertical, greatly shorten the processing time. The principle of five axis machining center can also be applied to angular side milling, eliminates the ball head milling cutter frame, make the mould surface quality is more ideal, reduced the mold surface cleaning, reducing the workload of manual milling and manual operation.





through five axis machining technology, can solve the workpiece need to repeatedly debugging and Angle of the load to the workpiece positioning to complex problems, it not only shorten the processing time, and greatly reduce the error, save the significant cost of installing workpiece required fixture, machine also has realized the drilling, taper machining, groove machining of complex parts. They can't use the traditional way.


five-axis machining tool used in the relatively short, the parts can be processed at a time, no need to reload or use similar longer needed for the three axis processing cutting tool, mold to manufacture in a relatively short time, the surface of the parts quality is better also.


2, five axis machining center in the analysis of application of automotive mould processing
at present, the design of the CAD system is mainly used for automobile parts, parts of the design was done through reverse engineering and all kinds of experiments. Using CAM software for processing the complex mold surface. However, how to ensure the accuracy of design and processing depends on the nc machining. Analysis of the application of five axis machining center in the mold processing to the auto mould quality.


2. 1 for deep cavity mould processing


in automobile die manufacturing process, if using three axis machining center deep concave die, must to lengthen, and cutting tools in order to achieve the purpose of processing. However, when using five axis machining center deep steep cavity, through the workpiece or the additional rotary spindle head and swing, can shorten the tool length appropriately, to create a better technological condition for mould processing. Eliminating the cutting tools and tool holder and the cavity wall of the collision, reduced jitter and fracture of a tool, prolong the service life of the cutter, greatly improving the mould surface quality and processing efficiency.


2. 2 mold wall processing


for machining mold wall, cutting tool in the depth of the three-axis machining center is greater than the length of the wall, the depth is decided by the depth of the wall. If the tool length increases tool strength will reduce. If the mold wall consists of five axis machining center, the motion of the spindle or artifacts can make the tool and die wall in vertical state. Plane milling cutter can be used in the mold wall, improve the quality of the workpiece, prolong the service life of the cutting tool.


2. 3 mould is relatively flat surface processing


in the mold surface processing, the need to use spher mill to finish machining of three-axis machining center, in order to obtain a good surface quality, in this case, the need to increase the tool path, but the center of the ball head tool rotation speed is almost zero, the degree of damage in the process of mould processing cutting tool, cutting tool life shortened, mould surface quality deterioration. Use five axis machining center plane, and then on the workpiece processing cutting tool at a certain Angle. It can improve the relative linear velocity of the workpiece with ball head tool not only can improve the service life of cutting tools, and can greatly improve the surface quality of workpiece.