Tooling & Workholding

Milling Tools

Milling is the work of producing a flat or precision-contoured surface on a machined workpiece by using a rotating tool, and generally by taking multiple parallel passes with that tool. The work can be done on a machining center or milling machine, and can also be done on a lathe, turning center or turn-mill machine that happens to have rotary tool (or “live tool”) capabilities. The tools for milling include both solid tools and inserted tools—the latter consisting of a tool body that uses replaceable cutting inserts. Carbide is the most likely material for milling tools, though high speed steel is another choice, as are ceramic, cermet and diamond tools in certain more demanding milling applications. A common milling tool variety is the “end mill,” which generally describes a relatively narrow cylindrical tool that can mill on both its tip and its side, and can reach into various constrained features and spaces. The end mill can be flat-bottomed for flat surfaces, or ball-nosed for milling up, down and along the contours of complex milled shapes such as die and mold surfaces. Another common milling tool variety is the “face mill,” a generally larger-diameter tool designed for efficiently milling a wide, flat surface in an economical number of passes.

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Featured Zone Content

Video: Hard Pocket Milling

Relieved end mills and pre-machining of corners are two important considerations for accurate pocket machining in hard steel.

Mapal CPMill ballnose milling cutter

Ballnose Cutter Adds Cutting Edge for Fast Feed Rates

By: Edited by Jedd Cole
Designed for the production of homokinetic joints of hardened steel in automotive applications, Mapal’s CPMill ballnose milling cutter has been updated for efficiency in pre-machining (soft milling).

Walter USA M2025 and M2026 octagonal finishing face mills

Octagonal Face Mills Achieve Quality Surface Finish on Cast Iron

By: Edited by Jedd Cole
Walter USA’s M2025 and M2026 octagonal finishing face mills are designed to deliver high surface quality on large cast iron components.

MaxQ End Mill Series Offers Maximum Speed and Removal Rate

By: Lori Beckman (editor)
LMT Onsrud LP’s line of solid carbide end mills, the MaxQ series, features maximum material removal, maximum tool life and minimal edge wear for end users cutting a variety of materials.

Carmex Tiny Tool CMR

Multitasking Tool Eliminates Need for Pilot Holes

By: Edited by Jedd Cole
The CMR multitasking tool, part of the Carmex Tiny Tool line, enables users to bore, turn, face and chamfer with a single tool.

SwiftCarb XT7 RampMill

End Mill’s Truncated Radius Avoids Wear

By: Edited by Jedd Cole
SwiftCarb offers its XT7 RampMill seven-flute end mill, with an end geometry that enables helical ramp engagement to 8 degrees in steel and exotic metals.

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