On the application of five-axis simultaneous machining centers in mold processing.

  The five-axis machining center (equipment) is an essential component of CNC machining. This technology has been widely applied in high-precision instrument manufacturing fields such as shipbuilding, aerospace, automotive, light industry, and medical. In traditional mold processing, three-axis machining centers and vertical machining centers are commonly used to complete the milling of workpieces. With the continuous development of China's mold manufacturing technology, some weaknesses of traditional vertical machining centers and three-axis machining centers have gradually become apparent. Currently, ball-end mills are widely used in mold processing. Although the advantages of using ball-end mills in mold processing are evident, if a vertical machining center is used, the bottom line speed is zero, resulting in poor smoothness. By utilizing a five-axis machining center for mold processing, the aforementioned shortcomings can be fully overcome. This article analyzes the advantages of five-axis machining centers in mold processing and discusses their applications in this field.

In five-axis machining, using a flat-end mill to keep complex mold surfaces vertical significantly shortens processing time. The principle of the five-axis machining center is also applicable to angular surface side milling, which can eliminate the ribbed lines caused by ball-end milling, resulting in a more ideal surface quality for the mold and reducing the manual milling and hand finishing work required to clean up the surface. 

Through five-axis machining technology, the issue of requiring multiple setups and adjustments when repositioning workpieces at complex angles is resolved, not only shortening the time but also greatly reducing errors and saving enormous costs on fixtures and clamping devices. When installing workpieces, the machine tool also achieves the goal. Traditional machining methods are unable to complete the processing of complex parts, such as drilling, tapering, and concave cavity machining on complex surfaces.

    The tools used in five-axis machining are relatively short, allowing the entire part to be machined in one setup. There is no need to refixture or use longer tools as would be required in a comparable three-axis process, enabling molds to be manufactured in a shorter time with excellent surface quality of the parts.