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Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

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

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

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

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

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

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

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

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

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

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

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

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

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

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

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



Cyanide Bath For Tool Steels






Category: HEAT TREATMENT OF STEEL

All high-carbon tool steels are
heated in a cyanide bath. With this bath, the heat can be controlled
within 3 deg. The steel is evenly heated without exposure to the
air, resulting in work which is not warped and on which there is no
scale. The cyanide bath is, of course, not available for high-speed
steel because of the very high temperatures necessary.





Next: Drop Forging Dies

Previous: Carburizing Low-carbon Sleeves



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