What is Machining?

Machining is a process in which material is removed from a piece of stock to create a part. Removal of material means it is a subtractive process, unlike 3D printing which is an additive process.

When people talk about “machining,” there are a few things they could be referring to. There is light machining, like laser cutting, water jetting, angle grinding, etc. Heavy machining, which this guide covers, involves the use of large machines such as mills and lathes.

What does this guide cover?

Mills 101 [link]

An introduction to what a mill is, types of mills, and an overview of the ones available at Northeastern.

Milling Operations [link]

Explains all the different things you can do with a mill.

Mill Workholding [link]

Explains how to hold parts in various ways.

Mill Tools [link]

Explains the different tools and what their capabilities are, along with their benefits and drawbacks.