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.



Mikron

Line of Drilling, Milling Tools in Stainless Steel Materials

By: Katie Cattell
Mikron has developed a variety of drilling and milling tools designed for difficult-to-machine materials such as stainless steels, super alloys and chrome-cobalt alloys.

Sumitomo DFC

Double-Sided Milling Cutter Achieves Long-Term Accuracy, High Efficiency

By: Jedd Cole
Sumitomo Electric Carbide’s DFC double-sided 90-degree milling cutter features a six-edge insert designed to ensure long-term, stable cutting and high-efficiency machining with high feed rates.

Haimer USA Opens North American Headquarters

By: Jedd Cole
The new headquarters feature a showroom, training facilities and offices built to support the company’s continued growth.

Reasons to Consider Thread Milling

By: Lori Beckman
Read about how thread milling can make your shop's processes more efficient, as well as several requirements for thread milling that should be considered.

Haimer Power Mill F1304NN

End Mills Provide Stability for Lower Speed Machining

By: Jedd Cole
Designed for stainless and general steels, Haimer’s Power Mill F1304NN-series end mill combines a variable-helix flute geometry with a roughing cord profile for more stable milling in machines with limited horsepower.


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