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Steel Making

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Gears
The material used for all gears on the Liberty engine was sel...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

High Speed Steel
For centuries the secret art of making tool steel was handed ...

Critical Points
One of the most important means of investigating the properti...

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Connecting Rods
The material used for all connecting rods on the Liberty engi...

Manganese
Manganese adds considerably to the tensile strength of steel,...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

The Theory Of Tempering
Steel that has been hardened is generally harder and more br...

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

Heating
Although it is possible to work steels cold, to an extent de...



Forging High-speed Steel






Category: THE FORGING OF STEEL

Heat very slowly and carefully to from 1,800
to 2,000 deg.F. and forge thoroughly and uniformly. If the forging
operation is prolonged do not continue forging the tool when the
steel begins to stiffen under the hammer. Do not forge below 1,700 deg.F.
(a dark lemon or orange color). Reheat frequently rather than prolong
the hammering at the low heats.

After finishing the forging allow the tool to cool as slowly as
possible in lime or dry ashes; avoid placing the tool on the damp
ground or in a draught of air. Use a good clean fire for heating.
Do not allow the tool to soak at the forging heat. Do not heat any
more of the tool than is necessary in order to forge it to the
desired shape.





Next: Carbon Tool Steel

Previous: Steel Can Be Worked Cold



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