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Steel Making

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

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

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

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

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

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

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

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...

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

Annealing
ANNEALING can be done by heating to temperatures ranging from...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...



Instructions For Working High-speed Steel






Category: HIGH-SPEED STEEL

Owing to the wide variations in the composition of high-speed steels
by various makers, it is always advisable to follow the directions
of each when using his brand of steel. In the absence of specific
directions the following general suggestions from several makers
will be found helpful.

The Ludlum Steel Company recommend the following:

CUTTING-OFF.--To cut a piece from an annealed bar, cut off with
a hack saw, milling cutter or circular saw. Cut clear through the
bar; do not nick or break. To cut a piece from an unannealed bar,
cut right off with an abrasive saw; do not nick or break. If of
large cross-section, cut off hot with a chisel by first slowly
and uniformly heating the bar, at the point to be cut, to a good
lemon heat, 1,800 deg.-1,850 deg.F. and cut right off while hot; do not nick
or break. Allow the tool length and bar to cool before reheating
for forging.





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