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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

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

Air-hardening Steels
These steels are recommended for boring, turning and planing...

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

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

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

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

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

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

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

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

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

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

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

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

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



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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