engineering technical drawings and standards

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


• 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.


• 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?


• 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 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 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?


• 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?


• 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?


• 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?


• 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?


• 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.


• 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?


• 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

engineering technical drawings and standards

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