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

Steel Making

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

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

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

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

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

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

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

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

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Furnace Data
In order to give definite information concerning furnaces, fu...

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

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

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

Drop Forging Dies
The kind of steel used in the die of course influences the he...

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

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

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

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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...



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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