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Steel Making

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

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

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Chromium
Chromium when alloyed with steel, has the characteristic func...

Tempering Colors On Carbon Steels
Opinions differ as to the temperature which is indicated by t...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

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

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

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

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

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

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

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...



Forging High-speed Steel






Category: THE FORGING OF STEEL

Heat very slowly and carefully to from 1,800
to 2,000 deg.F. and forge thoroughly and uniformly. If the forging
operation is prolonged do not continue forging the tool when the
steel begins to stiffen under the hammer. Do not forge below 1,700 deg.F.
(a dark lemon or orange color). Reheat frequently rather than prolong
the hammering at the low heats.

After finishing the forging allow the tool to cool as slowly as
possible in lime or dry ashes; avoid placing the tool on the damp
ground or in a draught of air. Use a good clean fire for heating.
Do not allow the tool to soak at the forging heat. Do not heat any
more of the tool than is necessary in order to forge it to the
desired shape.





Next: Carbon Tool Steel

Previous: Steel Can Be Worked Cold



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