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

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

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

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

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

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

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

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

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

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

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

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...



Instructions For Working High-speed Steel






Category: HIGH-SPEED STEEL

Owing to the wide variations in the composition of high-speed steels
by various makers, it is always advisable to follow the directions
of each when using his brand of steel. In the absence of specific
directions the following general suggestions from several makers
will be found helpful.

The Ludlum Steel Company recommend the following:

CUTTING-OFF.--To cut a piece from an annealed bar, cut off with
a hack saw, milling cutter or circular saw. Cut clear through the
bar; do not nick or break. To cut a piece from an unannealed bar,
cut right off with an abrasive saw; do not nick or break. If of
large cross-section, cut off hot with a chisel by first slowly
and uniformly heating the bar, at the point to be cut, to a good
lemon heat, 1,800 deg.-1,850 deg.F. and cut right off while hot; do not nick
or break. Allow the tool length and bar to cool before reheating
for forging.





Next: Lathe And Planer Tools

Previous: For Milling Cutters And Formed Tools



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