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Steel Making

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

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

The Forging Of Steel
So much depends upon the forging of steel that this operation...

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

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

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

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

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

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

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

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

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

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

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

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

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...

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

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



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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Previous: For Milling Cutters And Formed Tools



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