Circumferential milling is a milling process that produces cylindrical surfaces by the circumferential feed motion of milling cutters. In recent years, the development and wide application of this milling technology has been promoted due to advances in machining centers and tool manufacturing techniques. The circumferential feed motion of the milling cutter is a prerequisite for circumferential milling. On the CNC machining center, the circular feed of the milling cutter can be realized by the circular interpolation of the X-axis and the Y-axis, or the X-axis can be realized. The helical interpolation of the Y-axis and the Z-axis is used to realize the helical feed motion of the milling cutter, and various circumferential milling operations are realized by the CNC program. At present, the high dynamic machining center driven by a linear motor and equipped with a precision CNC system not only reduces the basic time of circumferential milling, but also improves the machining accuracy of circumferential milling, thereby replacing the boring machining and the drilling and milling by circumferential milling. Threads replace traditional tapping. Next page After application tests, the plant light is very suitable for the growth, flowering and fruiting of plants. Generally, indoor plants and flowers will grow worse with time due to lack of natural light. By using plant lights with the required spectrum of plants, not only can they promote their growth, but they can also prolong the flowering period and improve the quality of the flowers. The application of this high-efficiency light source system to agricultural production such as greenhouses, greenhouses and other facilities on the one hand can solve the shortcomings of the lack of sunlight that causes the taste of tomatoes, cucumbers and other greenhouse vegetables to decrease, and on the other hand, it can also make winter solanum vegetables in advance. It will be listed around the Spring Festival, so as to achieve the purpose of off-season cultivation. Plant growth light,grow light,Ordinary sodium lamp, high-efficiency sodium lamp, LED plant light Dongguan XINYUDA Technology Co., Ltd. , https://www.gdxige.com
At present, this circumferential milling principle has been widely used for many different machining tasks such as milling, milling (outer) grooves, milling threads, chamfering, milling end faces and milling holes (Fig. 1).
Due to the advantages of high machining efficiency, wide application range and the ability to be combined with other machining processes, this circumferential milling process has been increasingly used in industrial production, especially in the automotive industry. 
Figure 1: The circumferential milling process is used for many different machining tasks
Milling holes are performed using the circumferential milling process, basically in two ways and two types of tools. One is a circumferential milling tool that has a spiral blade on a cylindrical cutter body or a circumferential milling cutter that tangentially arranges a plurality of indexable inserts on a cylindrical cutter body. These cutters are generally used for machining shallow holes and milling. When the hole is in the hole, the spindle milling cutter moves around the Z axis for the circumferential feed motion. The other is a multi-purpose end mill with round or diamond or rectangular inserts. These tools can be used to machine deep holes of no more than five times the diameter of the tool. For milling, the end mill is used for the screw feed. The X-axis, Y-axis and Z-axis of the machining center are linked (that is, the three-axis performs the helical interpolation motion).
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