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Steel Making

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

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

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

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

Corrosion
This steel like any other steel when distorted by cold worki...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

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

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

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

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

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

Silicon
SILICON is a very widespread element (symbol Si), being an es...

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

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

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

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



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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