Fiction Stories.ca - Science Fiction and Western Stories Visit Fiction Stories.caInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

High Speed Steel
For centuries the secret art of making tool steel was handed ...

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...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

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

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

Rate Of Cooling
At the option of the manufacturer, the above treatment of gea...

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

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

Hardening
Steel is hardened by quenching from above the upper critical....

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

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

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

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

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...



Heat Treatment Of Gear Blanks






Category: HEAT TREATMENT OF STEEL

This section is based on a paper read before the American Gear
Manufacturers' Association at White Sulphur Springs, W. Va., Apr.
18, 1918.

Great advancement has been made in the heat treating and hardening of
gears. In this advancement the chemical and metallurgical laboratory
have played no small part. During this time, however, the condition
of the blanks as they come to the machine shop to be machined has
not received its share of attention.

There are two distinct types of gears, both types having their
champions, namely, carburized and heat-treated. The difference
between the two in the matter of steel composition is entirely in
the carbon content, the carbon never running higher than 25-point
in the carburizing type, while in the heat-treated gears the carbon
is seldom lower than 35-point. The difference in the final gear
is the hardness. The carburized gear is file hard on the surface,
with a soft, tough and ductile core to withstand shock, while the
heat-treated gear has a surface that can be touched by a file with
a core of the same hardness as the outer surface.





Next: Annealing Work

Previous: Judging The Heat Of Steel



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 4338