Clamping of milling cutters

Most of the milling cutters used in machining centers are clamped by spring clip sets, and they are in a cantilever state when used. During the milling process, sometimes the milling cutter may gradually protrude from the tool holder, or even completely fall off, resulting in the scrapping of the workpiece. The reason is generally that there is a gap between the inner hole of the tool holder and the outer diameter of the milling cutter handle. Oil film, resulting in insufficient clamping force. Milling cutters are generally coated with anti-rust oil when they leave the factory. If non-water-soluble cutting oil is used during cutting, a misty oil film will also adhere to the inner hole of the tool holder. It is difficult to firmly clamp the tool holder, and the milling cutter will become loose and lost during processing. Therefore, before the milling cutter is clamped, the handle of the milling cutter and the inner hole of the tool holder should be cleaned with cleaning fluid, and then dried before clamping.
When the diameter of the milling cutter is large, even if the shank and the tool holder are clean, a tool loss accident may still occur. At this time, a tool shank with a flattened notch and a corresponding side locking method should be selected.
Another problem that may occur after the milling cutter is clamped is that the milling cutter is breaking at the end of the tool holder during processing. The reason is generally that the tool holder has been used for too long and the end of the tool holder has been worn into a tapered shape. Replace with a new tool holder.