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Steel Making

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

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

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

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

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

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

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

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

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

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

Chromium
Chromium when alloyed with steel, has the characteristic func...

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

The Influence Of Size
The size of the piece influences the physical properties obta...

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



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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