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

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

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

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

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Double Annealing
Water annealing consists in heating the piece, allowing it to...

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

Annealing Work
With the exception of several of the higher types of alloy s...

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

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

The Influence Of Size
The size of the piece influences the physical properties obta...

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

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



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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