Spindle speed
From Biocrawler, the free encyclopedia.
The spindle speed is the peripheral speed of a work piece passing the cutter in a CNC turning centre or cutter passing the work piece in a CNC milling machine.
Every material differs in characteristics. Some are softer materials like machinable wax. Some are harder materials such as stainless steel. In CNC, a wide range of tools can be used on these materials at greater speeds and feed rate. It is very important to understand the value of the correct spindle speed. If your spindle speed is fast, it will result in early tool failure. Too low spindle speed on the other hand, will lead to increasing machining speed and possibily greater cost. A good surface finish of a product and economic production rates need right spindle speed.
For milling, spindle speed is calculated according to the diameter of the cutter, spindle RPM, number of teeth on the cutter, chip load per tooth and surface feet per minute for a particular material.
Refer to machinist's hand book for the correct speed for a particular material.
