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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Tempering Colors On Carbon Steels
Opinions differ as to the temperature which is indicated by t...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Alloying Elements
Commercial steels of even the simplest types are therefore p...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Pickling The Forgings
The forgings were then pickled in a hot solution of either ni...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...



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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