What prefixes signify Half?... Read more of What prefixes signify Half? at Speaking Writing.comInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

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

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

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

Annealing
There is no mystery or secret about the proper annealing of d...

Impact Tests
Impact tests are of considerable importance as an indication ...

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

Piston Pin
The piston pin on an aviation engine must possess maximum res...

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

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

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

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



Tempering Round Dies






Category: HARDENING CARBON STEEL FOR TOOLS

A number of circular dies of carbon tool steel for use in tool
holders of turret lathes were required. No proper tempering oven
was available, so the following method was adopted and proved quite
successful.

After the dies had been hardened dead hard in water, they were
cleaned up bright. A pair of ordinary smiths' tongs was made with
jaws of heavy material and to fit nicely all around the outside of
the die, leaving a 3/32-in. space when the jaws were closed around
the die. The dies being all ready, the tongs were heated red hot, and
the dies were picked up and held by the tongs. This tempered them
from the outside in, left the teeth the temper required and the
outside slightly softer. The dies held up the work successfully
and were better than when tempered in the same bath.





Next: The Effect Of Tempering On Water-quenched Gages

Previous: Shrinking And Enlarging Work



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 2822