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Steel Making

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

Crankshaft
The crankshaft was the most highly stressed part of the entir...

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

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

Nickel-chromium
A combination of the characteristics of nickel and the charac...

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...

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

Nickel
Nickel may be considered as the toughest among the non-rare a...

Quenching
It is considered good practice to quench alloy steels from th...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

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

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

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

Conclusions
Martien was probably never a serious contender for the honor ...

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...



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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