Alcoa 1998 Annual Report Download - page 63

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61
Glossary
Robert F. Slagle
Executive Vice President –
Human Resources and
Communications
Paul D. Thomas
Vice President – Alcoa and
President, Alcoa Engineered
Products
G. Keith Turnbull
Executive Vice President –
Alcoa Business System
Robert G. Wennemer
Vice President and Treasurer
John M. Wilson
Assistant General Counsel
Russell C. Wisor
Vice President – Government
Affairs
Barbara S. Jeremiah
Vice President – Corporate
Development
Richard B. Kelson
Executive Vice President and
Chief Financial Officer
Kathleen L. Lang
Assistant Secretary
Frank L. Lederman
Vice President and
Chief Technical Officer
Timothy J. Leveque
Vice President – Alcoa and
President, Alcoa Asia Ltd.
Joseph R. Lucot
Assistant Controller
L. Richard Milner
Vice President – Alcoa and
President, Alcoa Automotive
RaymondB.Mitchell
Assistant Controller
Joseph C. Muscari
Vice President – Audit
William J. O’Rourke
Vice President – Alcoa Business
Support Services
Joseph C. Pellegrino
Vice President – Pension Fund
Investments and Analysis
G. John Pizzey
Vice President – Alcoa and
President, Alcoa World Alumina
Russell W. Porter, Jr.
Assistant General Counsel
Lawrence R. Purtell
Executive Vice President –
Environment, Health and Safety
and General Counsel
Alan C. Renken
Vice President – Alcoa and
President, Alcoa Primary Metals
James B. Savage
Assistant Controller
Alloy A substance with metallic
properties, composed of two
or more chemical elements of
whichatleastoneisametal.
More specifically, aluminum plus
one or more other elements,
produced to have certain specific,
desirable characteristics.
Alumina Aluminum oxide pro-
duced from bauxite by an intricate
chemical process. It is a white
powdery material that looks like
granulated sugar. Alumina is an
intermediate step in the production
of aluminum from bauxite and is
also a valuable chemical on its own.
Aluminum foil A flat-rolled
product, rectangular in cross
section, of thickness from 0.0069
to 0.000259.
Aluminum plate A flat-rolled
product, rectangular in cross
section, of thickness not less than
0.2509and with sheared or sawed
edges.
Aluminum sheet Arolled
product, flat or coiled, rectangular
in cross section, with thickness
less than 0.2509but not less than
0.0069and with slit, sheared or
sawed edges.
Aluminum SpaceFrameEAn
integrated structure of aluminum
castings and extruded parts that
formstheprimarybodyframeof
a new generation of automobiles.
Anodizing An electrochemical
process for applying a protective
or decorative coating to metal
surfaces.
Bauxite An ore from which
alumina is extracted and from
which aluminum is eventually
smelted. Bauxite usually contains
at least 45% alumina. About four
pounds of bauxite are required to
produce one pound of aluminum.
Casting The process of forming
molten metal into a particular
shape by pouring it into a mold
and letting it harden.
Engineered product Abasic
aluminum fabricated product that
has been mechanically altered
to create special properties for
specific purposes; forgings and
extrusions are examples of
engineered products.
Extrusion The process of shaping
materialbyforcingittoflow
through a shaped opening in a die.
Fabricate To work a material into
a finished state by machining,
forming or joining.
Flat-rolled products Aluminum
plate, sheet or foil products made
by passing ingot through pairs
of rolls. By moving the rolls closer
together and passing the ingot
between them, the thickness is
reduced and the length is increased.
Forging A metal part worked
to predetermined shape by
oneormoreprocessessuchas
hammering, pressing or rolling.
Hydrate An aluminum oxide with
three molecules of chemically
combined water.
Ingot A cast form suitable for
remelting or fabricating. An ingot
may take many forms: some may
be 30 feet long and weigh 15 tons;
others are notched or specially
shaped for stacking and handling.
London Metal Exchange
(LME)
The international trading body
that facilitates the worldwide open
market buying and selling of metals.
Magnesium A light, silvery,
moderately hard metallic element
used in processing metals and
chemicals, and in alloying aluminum
to give it desired metallurgical
properties.
Metric ton (mt) Aunitofmass
and weight equal to 1,000 kilo-
grams, or 2,204.6 pounds.
Mill products Metal that has
been fabricated into an inter-
mediate form before being made
into a finished product. The most
common fabricating processes for
aluminum are rolling, extruding,
forging and casting. Example:
aluminum sheet, a mill product,
is used to make beverage cans,
a finished product.
Pot In aluminum production:
the electrolytic reduction cell,
commonly called a ‘‘pot,’’ in which
alumina dissolved in molten cryo-
lite is reduced to metallic alu-
minum. A series of cells connected
electrically is called a potline.
Smelt To fuse or melt ore in
order to extract or refine the metal
it contains.