General Automotive

1. UNIVERSITY OF SOUTHERN MINDANAO
JENNIFER D. ALIVAR
1st year MATIA
Presenter
HISTORY OF METAL
SAMSON RAPUZA PhD
Professor

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What
is the
History of
Metal

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History of Metal
The use of refined metals is thought to
have begun around 11,000 years ago with
the use of copper. Before the first known
appearance of bronze in the fifth
millennium BCE, gold, silver, iron (as
meteoric iron), lead, and brass were also in
use.

4. One of the oldest applied sciences
is metallurgy.
Metals' history is intertwined with
that of coins and gemstones.
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Metallurgy

5. Metallurgy
The Egyptians had
intimate knowledge of
gold, copper ores, and
metal extraction processes
as early as 3400 B.C., at the
beginning of the historical
period.
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6. Metallurgy
The
Mesopotamians,
Greeks, and
Romans were
also aware of
metals.
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7. Native Metals
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Mercury
Gold
Silver
Copper
Iron

8. Meteors provided
small amounts of iron to
the ancients.
Because it contains 6-8
percent nickel, native
iron is easily
distinguishable.
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9. Copper Age (~4000 B.C.)
The first
metal to be
used was
copper.
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Copper was
used to make
the first
tools,
implements,
and
weapons.

10. Copper Age (~4000 B.C.)
Mesopotamia
produced the
world's oldest
known casting,
a pure copper
frog.
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11. Bronze Age (~3000 B.C.)
The first alloy used was bronze.
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Bronze is composed of copper and
5-10% tin.

12. Bronze Age (~3000 B.C.)
Bronze technology may
have been known in
Thailand as early as 4500
BC, according to new
discoveries near Ban
Chiang.
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13. Iron Age (~2000 B.C.)
Iron smelting
began in Egypt.
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14. Iron Age (~2000 B.C.)
Iron weapons
revolutionized
warfare and iron
implements did
the same for
farming.
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15. Iron Pillar ~ 400A.D.
This iron pillar, which
dates from 400 A.D., still
stands in Delhi, India.
Corrosion to the pillar has
been kept to a minimum, a
skill lost to today's
ironworkers.
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16. Cast Iron (~800)
The Chinese were
the first to produce
cast iron. Insert Running Title 16
Molten iron is
"cast" into forms
made of sand.

17. Steel (~500)
is a high strength hot rolled
structural steel that is primarily
used for cold formed
components. It is a load-
bearing steel. Because of its
good weldability, the material
has a wide range of
applications. Heat treatment
should be avoided because it
can reduce the yield strength of
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18. 1750
Steel becomes the world’s most used material.

19. Abraham Darby
In 1709, Abraham Darby finally succeeded in smelting iron
with coke.

20. 1850
Charles Martin Hall
Isolated Pure Aluminum

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References
Metalwork (c.3000 BCE - 1400 CE)
Decorative Goldsmithery & Bronzework:
Antiquity to the Middle Ages
https://youtu.be/2MMTjLlfn50

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for listening