This worthy and learned prelate, the bishop of St. David's in Wales, having in the former reign, as well as since the accession of Mary, been remarkably zealous to promoting the reformed doctrines, and exploding the errors of popish idolatry, w... Read more of Dr Robert Farrar at Martyrs.caInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

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

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

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

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

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Gears
The material used for all gears on the Liberty engine was sel...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

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

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

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

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

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

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

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

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



Impact Tests






Category: COMPOSITION AND PROPERTIES OF STEEL

Impact tests are of considerable importance as an indication of
how a metal will perform under shock. Some engineers think that
the tensile test, which is one made under slow loading, should
therefore be supplemented by another showing what will happen if
the load is applied almost instantaneously. This test, however, has
not been standardized, and depends to a considerable extent upon
the type of machine, but more especially the size of the specimen
and the way it is nicked. The machine is generally a swinging
heavy pendulum. It falls a certain height, strikes the sample at
the lowest point, and swings on past. The difference between the
downward and upward swing is a measure of the energy it took to
break the test piece.





Next: Fatigue Tests

Previous: Tensile Properties



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 3025