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Steel Making

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

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

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

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

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

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

The Modern Hardening Room
A hardening room of today means a very different place from ...

High Speed Steel
For centuries the secret art of making tool steel was handed ...

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

The Influence Of Size
The size of the piece influences the physical properties obta...

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

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

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

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...



Uses Of The Various Tempers Of Carbon Tool Steel






Category: HARDENING CARBON STEEL FOR TOOLS

DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pressing
and drop forgings. Mining drills to harden only. Easily weldable.

SMITHS' TOOL TEMPER.--No. 3-1/2: Large punches, minting and rivet
dies, nailmakers' tools, hammers, hot and cold sets, snaps and
boilermakers' tools, various smiths' tools, large shear blades,
double-handed chisels, caulking tools, heading dies, masons' tools
and tools for general welding purposes.

SHEAR BLADE TEMPER.--No. 4: Punches, large taps, screwing dies,
shear blades, table cutlery, circular and long saws, heading dies.
Weldable.

GENERAL PURPOSE TEMPER.--No. 4-1/2: Taps, small punches, screwing
dies, sawwebs, needles, etc., and for all general purposes. Weldable.

AXE TEMPER.--No. 5: Axes, chisels, small taps, miners' drills and
jumpers to harden and temper, plane irons. Weldable with care.

CUTLERY TEMPER.--No. 5-1/2: Large milling cutters, reamers, pocket
cutlery, wood tools, short saws, granite drills, paper and tobacco
knives. Weldable with very great care.

TOOL TEMPER.--No. 6: Turning, planing, slotting, and shaping tools,
twist drills, mill picks, scythes, circular cutters, engravers'
tools, surgical cutlery, circular saws for cutting metals, bevel
and other sections for turret lathes. Not weldable.

HARD TOOL TEMPER.--No. 6-1/2: Small twist drills, razors, small
and intricate engravers' tools, surgical instruments, knives. Not
weldable.

RAZOR TEMPER.--No. 7: Razors, barrel boring bits, special lathe
tools for turning chilled rolls. Not weldable.





Next: Steel For Chisels And Punches

Previous: Carbon Steels For Different Tools



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