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Steel Making

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

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

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

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

Care In Annealing
Not only will benefits in machining be found by careful anne...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...



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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