Steelmaking.ca Home Steel Making Categories Manufacturing and the Economy of Machinery

Steel Making

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

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

Crankshaft
The crankshaft was the most highly stressed part of the entir...

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

Annealing
ANNEALING can be done by heating to temperatures ranging from...

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

Lathe And Planer Tools
TO FORGE.--Gently warm the steel to remove any chill is parti...

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

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

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

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

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

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Annealing Work
With the exception of several of the higher types of alloy s...

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

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

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

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



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 Informational Site Network
Report
Privacy
ADD TO EBOOK


Viewed 4409