Manual Mill Basics 201

Question 1

A toolholder used in boring operations that require a hole diameter larger than that of the tool. Can be set to bore differently sized hole diameters.

Answer 1

Adjustable Boring Head

Question 2

A type of vise that can position the workpiece at an angle. Can be adjusted from zero to 90 degrees

Answer 2

Angle Vise

Question 3

The bar attached to the spindle of a horizontal milling machine. Holds the milling cutter for different types of milling processes.

Answer 3

Arbor

Question 4

The foundation of a machine that supports all the other machine components. Typically square or rectangle for milling machines

Answer 4

Base

Question 5

An endless loop of material used to transmit motion between two or more pulleys. On a milling machine, these should only be repositioned with the spindle turned off

Answer 5

Belt

Question 6

The process of enlarging an existing hole with a single-point tool. This process removes small amounts of material to achieve tight tolerances and finishes.

Answer 6

Boring

Question 7

Two parallel box-shaped rails that guide movement of a machine component. Help keep the mill table aligned to the knee as it moves and are also referred to as square ways.

Answer 7

Box Ways

Question 8

A metal piece of metal that is removed from a workpiece during cutting or grinding. They are tiny curls, shards, fragments, or particles of metal.

Answer 8

Chips

Question 9

A split sleeve device that expands or contracts to grip a cutting tool as it rotates. They come in various sizes to match specific tool diameters.

Answer 9

Collet

Question 10

The vertical support, or backbone, of a milling machine. It is supported by the machine base.

Answer 10

Column

Question 11

A milling machine whose spindle is mounted in the column, and whose worktable rests on an adjustable knee. These are the most common type of manual mill.

Answer 11

Column and Knee Milling Machine

Question 12

The use of single or multi-point tools to separate metal from a workpiece in the form of chips. Processes vary based on the requirements of a finished part.

Answer 12

Cutting

Question 13

The amount of material removed by one pass of the cutting tool. Measures how far the cutting tool penetrates the surface of the workpiece during a cut

Answer 13

Depth of Cut

Question 14

A mill cutter used to cut an angle into a workpiece. These cutters can produce angled slots

Answer 14

Dovetail Cutters

Question 15

Two parallel angle-shaped rails that guide movement of a machine component. These help keep the mill table aligned to the knee as it moves.

Answer 15

Dovetail Ways