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

Furnace Data
In order to give definite information concerning furnaces, fu...

Annealing
There is no mystery or secret about the proper annealing of d...

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

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

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

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

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

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

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

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

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

Manganese
Manganese adds considerably to the tensile strength of steel,...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Rate Of Cooling
At the option of the manufacturer, the above treatment of gea...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...



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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