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Steel Making

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

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

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

The Theory Of Tempering
Steel that has been hardened is generally harder and more br...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Heating
Although it is possible to work steels cold, to an extent de...

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

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

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

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

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

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

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

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

Hardness Testing
The word hardness is used to express various properties of me...

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...



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.





Next: Lathe And Planer Tools

Previous: For Milling Cutters And Formed Tools



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