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Steel Making

Heat Treatment Of Milling Cutters Drills Reamers Etc
THE FIRE.--Gas and electric furnaces designed for high heats ...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

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

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

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

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

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

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Crucible Steel
Crucible steel is still made by melting material in a clay or...

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

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

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

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

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

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

PHOSPHORUS is an element (symbol P) which enters the metal fr...

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

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 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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