boring mill

noun

Metalworking. a machine for boring large holes in heavy work, having a table on which the work rotates while the hole is bored vertically.

boring mill

engineering a large vertical lathe having a rotating table on which work is secured. Tools are held on a fixed post and the work is rotated around it Also called (informal)roundabout

First recorded in 1825–35

The vertical boring mill is used extensively for turning large wheels, as explained in Chapter VI.

The turning of flywheels is a common vertical boring mill operation, and this work will be referred to in detail later on.

It is known as a “vertical turret lathe,” but resembles, in many respects, a vertical boring mill.

Very often more than one tool is used at a time, as will be shown later by examples of vertical boring mill work.

This is especially true of the heavy parts for which the boring mill is principally used.

April 19, 2024tortuous

[tawr-choo-uhs ]

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