Milling

Abstract

Milling is a process of generating machine surfaces by progressively removing a predetermined amount of material from the workpiece, which is advanced normally at a relatively slow rate of movement or feed against a multi-tooth cutter rotating at comparatively high speed about its own axis. An important feature of the milling process is its ability to remove the surplus material quickly and accurately; this may be attributed to the cutter’s teeth, each one removing its share of the stock and producing individual chips. The work may be fed against the cutter in any one of three mutually perpendicular directions. With the addition of an attachment, rotation of the work can take place about one of these directions.The variety of attachments available for the milling machine considerably increases its scope and versatility. In addition to straight milling of flat surfaces, gear and thread cutting, drilling, boring and slotting operations may be carried out on such a machine tool.