CC2 - Tooling and Toolmaking

Definition of terms under

Single-point Tool

Single-point Tool

tools for turning, planing, boring, etc., which have a cutting edge at one end

Shank

main body of the tool; in an inserted cutter type, it supports the cutter or bit

Nose

used to designate the cutting end but usually relating more particularly to the rounded tip of the cutting end

Face

surface against which the chips bear

Flank

end surface adjacent to the cutting edge and below it when the tool is in a horizontal position

Base

surface of the tool shank that bears against the supporting tool-holder or block.

Side Cutting Edge

cutting edge on the side of the tool

End Cutting Edge

can be used for light plunging and facing cuts

Rake

inclination of the tool face or surface for the purpose of either increasing or diminishing the keenness or bluntness of the edge

Positive Rake

inclination of the tool face is keener or more acute than when the rake angle is zero

Negative Rake

inclination of the tool face is less keen or blunter than when the rake angle is zero

Back Rake

inclination of the face toward or away from the end or the end cutting edge of the tool

Positive Back Rake

inclination is away from the end cutting edge

Negative Back Rake

inclination is toward the end cutting edge

Side Rake

inclination of the face toward or away from the side cutting edge

Relief