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Steel Making

The Modern Hardening Room
A hardening room of today means a very different place from ...

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

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

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

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

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

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

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

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

The Effect
The heating at 1,600 deg.F. gives the first heat treatment w...



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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