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Steel Making

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

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

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

Connecting Rods
The material used for all connecting rods on the Liberty engi...

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

Machineability
Reheating for machine ability was done at 100 deg. less than ...

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

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

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

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

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

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

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

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Corrosion
This steel like any other steel when distorted by cold worki...

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



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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