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Steel Making

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

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

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

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

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

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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

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

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

Alloying Elements
Commercial steels of even the simplest types are therefore p...

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

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

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

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

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



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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