engineering technical drawings and standards
TRANSCRIPT
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
This lesson will help you to Know
• More about how and why Engineers
produce and Follow Engineering Drawings
• About the Organisations that are
responsible for British and International
Drawing Standards
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Engineers are constantly reading and following drawings. Drawings are
produced by engineers to be read by other engineers and members of the
public.
• Engineers read TECHNICAL drawings to understand everything they need
to know about the ENGINEERED PRODUCT that they are going to
MANUFACTURE.
• Engineering Drawings can be of anything that needs to be
MANUFACTURED, BUILT, CONSTRUCTED or MAINTAINED.
• Engineering Drawings allow an engineer to quickly visualize anything
from toothbrushes, TV Remote controls, Laptops and Smart Speakers to
Ocean Liners, Aircraft, Skyscrapers and Satellites.
• Engineers who produce technical drawings must ensure that the
drawings are correct.
• Mistakes made in a drawing could cause a product to be made incorrectly
at the manufacturing stage. This will cost valuable time, money and could
be life threatening!
• To make drawings readable by all engineers, technical drawings need to
be STANDARDISED.
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Engineers are constantly reading and
following drawings.
• Drawings are produced by engineers to be
read by other engineers and members of the
public.
Can you think of an example of when an Engineer may
need to follow a drawing ?
Have you ever had to follow an Engineering Drawing?
Why should other Engineers and member of the public be
able to read any engineering drawing?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Engineers read TECHNICAL drawings to understandeverything they need to know about theENGINEERED PRODUCT that they are going toMANUFACTURE.
What is an “Engineered Product”?
What does “Manufacture” mean?
What do Engineers need to know about anEngineered Product so that they can thinkabout its manufacture?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
Engineering Drawings can be of anything that
needs to be MANUFACTURED, BUILT,
CONSTRUCTED or MAINTAINED.
Can you name
• Three examples of MANUFACTURED PRODUCTS?
• A Product that may be BUILT or CONSTRUCTED?
• A Product that needs to be regularly maintained?
Why is it important to regularly maintain an
Engineered Product?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Engineering Drawings allow an engineer to
quickly visualize anything from toothbrushes,
TV Remote controls, Laptops and Smart
Speakers to Ocean Liners, Aircraft, Skyscrapers
and Satellites.
What do we mean by “Visualize” and
“Engineered Product”?
Can you explain how an Engineering drawing
allows an engineer to visualize an Engineered
Product?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Engineers who produce technical drawings
must ensure that the drawings are correct.
What mistakes could an engineer
make when producing a drawing?
What could an engineer do to reduce
the chances of making mistakes?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• Mistakes made in a drawing could cause a
product to be made incorrectly at the
manufacturing stage. This will cost valuable
time, money and could be life threatening!
Think of a Engineered Product that
you have used, and discuss the
potential problems that would arise
from it being made incorrectly?
ENGINEERING TECHNICAL DRAWINGS and STANDARDS
• To make drawings readable by all engineers,
technical drawings need to be STANDARDISED.
What do you think the term “Standardised”
means?
What would be the benefit of Standardisng
Engineering Drawings?
ENGINEERING DRAWING STANDARDS• STANDARDISATION is all to do with setting out Technical Guidelines for Engineers to
follow when they produced technical drawings of Products used all over the world.
• Engineers follow the guidelines so that Engineers in China, America or India are able to
read and follow drawings by Engineers in the UK or Australia. Following standards
allows Engineers to communicate globally.
• This means that a bridge designed and drawn in the UK can be made safely by
Engineers in Turkey for example.
• There are two UK organisations that we need to know about when we talk about
Engineering Drawing Standards.
• The first is INTERNATIONAL STANDARDISATION ORGANISATION (ISO)
• The second is the BRITISH STANDARDS INSTITUTE (BSI)
• When a Product has been made to meet the standards of the BSI, the product is
awarded a KITEMARK that can be printed onto the product.
• The Standardisation Numbers for Technical drawings are ISO 128 and BSI 8888:2017
ENGINEERING DRAWING STANDARDS
• STANDARDISATION is all to do with setting out
Technical Guidelines for Engineers to follow
when they produced technical drawings of
Products used all over the world.
What do you think these Technical
Guidelines would be?
What needs to be consistent in Drawings?
What examples of Drawing Symbols can you
think of?
ENGINEERING DRAWING STANDARDS
• Engineers follow the guidelines so that
Engineers in China, America or India are able
to read and follow drawings by Engineers in
the UK or Australia. Following standards
allows Engineers to communicate globally.
What do you think makes really affective
Engineering Global Communication?
ENGINEERING DRAWING STANDARDS
• There are two UK organisations that we need to know
about when we talk about Engineering Drawing Standards.
• The first is INTERNATIONAL STANDARDISATION
ORGANISATION (ISO)
• The second is the BRITISH STANDARDS INSTITUTE (BSI)
Why is it important that Engineers follow Standards?
What would be generated globally by engineers who
communicate by following the standards?
Hint C_ _ F _ _ _ _ _ E to have faith in the drawing or rely on the drawing.
ENGINEERING DRAWING STANDARDS
• When a Product has been made to meet the
standards of the BSI, the product is awarded a
KITEMARK that can be printed onto the
product.
Why is it important for a Product to display the
British Standards Kitemark?
ENGINEERING DRAWING STANDARDS
• The Standardisation Numbers for
Technical drawings are:-
ISO 128 & BSI 8888:2017
How do you think engineers ensure
that they are following the
Standards?
Exercise
This is a Technical Drawing
Study the drawing andwrite sentences that clearly describe the information that it is communicating to you as a young engineer