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.



Lach Diamant.

PCD Cutter Enables Efficient Chip Production

By: Edited by Jedd Cole
Lach Diamant’s PCD monoblock Cool Injection-Plus cutter integrates its Cool Injection cooling system and Plus chip controller for high-speed cutting.

High-Feed Milling Cutters Offer 0.060" Depth of Cut

By:
Ingersoll offers its Hi-Feed Midi family of milling cutters featuring strong, positive rake face angles, four insert indexes, rigid clamping and high tensile screws, designed for efficient, cost-effective machining.

Milling Catalog Offers Comprehensive Machining Data

By:
The expanded ATI Stellram Milling Catalog includes the latest product offerings as well as comprehensive cutting conditions data to maximize cutting tool performance.

Tooling Selection Keeps Big Aerospace Component In-House

By: Edited by: Emily Probst
Attention to the tool-up process enabled JWF Industries to launch a large-scale defense industry radar frame project, keeping production in-house and ultimately shaving weeks off of the expected production time.

Ultrasonic-Assisted Machining with Standard Machines and Tools

By: Peter Zelinski
A system to be marketed in 2015 will apply ultrasonic vibration from within the toolholder to reduce cutting force and improve the performance of the cut.


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