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Model Engineering Glossary


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Imitation Platinum

44.44 % Copper 55.55 % Zinc


Imperial Standard Wire Gauge

Tabulated wire diameters presented in imperial and metric. more......


Imperial to Decimal Conversion

See: Conversion of Units.

Search for unit conversion books on Amazon.co.uk


Indexing/Dividing Plate

A plate with precision drilled holes that allows you to index parts so as to precisely cut gears or facets.

This shows the indexing plate attached to the drive input end of the headstock on my Hobbymat MD65.

See also: Gears.



Inconel

80 % Nickel 6 % Iron 14 % Chromium


Indicator Diagrams

The pressure in the cylinder is plotted versus the cylinder volume. This was developed by James Watt and John Southern to improve the efficiency of the steam engine. The work done is the area within the red curve. more...



Inline Engine Configuration

This is a model two-stroke engine with a displacement of 0.5 cu. in. (built by N. Taylor)


An inline four cylinder four-stroke model Cirrus engine.

See also:Engine Configurations.


Instant Glue

More correctly known as cyanoacrylate. more...


Invar

This is a trade name for iron nickel alloy.

36% nickel, 63.8% iron and 0.2% carbon.

Used where small coefficient of expansion is required e.g. measuring tapes, pendulums..


IPM

Abbreviation for a feed rate of Inches Per Minute.


Iron Chloride

Chemical name: Ferrous chloride

Chemical formula: FeCl24H2O

See also: Chemical Table.


Iron Sulphide

Chemical name: Ferrous sulphide

Chemical formula: FeS

See also: Chemical Table.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z