VIEW THE MOBILE VERSION of www.steelmaking.ca Informational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

Machineability
Reheating for machine ability was done at 100 deg. less than ...

Silicon
SILICON is a very widespread element (symbol Si), being an es...

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

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

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

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

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

Crucible Steel
Crucible steel is still made by melting material in a clay or...

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

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

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

Compensating Leads
By the use of compensating leads, formed of the same materia...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...



Hints For Tool Steel Users






Category: HARDENING CARBON STEEL FOR TOOLS

Do not hesitate to ask for information from the maker as to the
best steel to use for a given purpose, mentioning in as much detail
as possible the use for which it is intended.

Do not heat the steel to a higher degree than that fixed in the
description of each class. Never heat the steel to more than a
cherry red without forging it or giving it a definite heat treatment.
Heating steel at even moderate temperature is liable to coarsen the
grain which can only be restored by forging or by heat treating.

Let the forging begin as soon as the steel is hot enough and never
let tool steel soak in the fire. Continue the hammering vigorously
and constantly, using lighter blows as it cools off, and stopping
when the heat becomes a very dull red or a faint brown.

Should welding be necessary care should be taken not to overheat
in order to make an easy weld. Keep it below the sparkling point
as this indicates that the steel is burnt.

Begin to forge as soon as the welds are put together, taking care
to use gentle strokes at first increasing them as the higher heat
falls, but not overdoing the hammering when the steel cools. The
hammering should be extended beyond the welding point and should
continue until the dull red or brown heat is reached.





Next: Preventing Cracks In Hardening

Previous: Knowing What Takes Place



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 4003