1. Materials testing Produced by Neil Liggett
Test machines

2. Test machines & equipment
Material testing can identify properties, weaknesses, uses and type of material –
Izod test – measures impact & illustrates toughness,
Hardness test – measures a materials resistance to indentation (Rockwell, Vickers & Brinell),
Tensile test – Hounsfield measures elasticity,
NDE – tests identify flaws, internal damage (x-ray),
Conductivity tests – electrical & thermal properties,
Spark testing – help identify types of steels.

3. Test machines & equipment
Measuring Hardness –
The Rockwell hardness test machine

4. Test machines & equipment
Testing toughness –
The Izod Charpy impact test machine
Image taken: ndt-ed.org

5. Test machines & equipment
Measuring tensile strength & elasticity –
The Hounsfield tensometer
Image Taken: housfield-tensometer.co.uk

6. Test machines & equipment
Not always do we require fancy machines to indicate a type of material. Material identification can simply be recognised by-
Colour,
Weight,
Density,
Surface finish,
Spark testing,
Material codes from suppliers.

7. Test machines & equipment
Do you recognise these materials –

8. Test machines & equipment
Carry out a spark test in the workshop to identify different types of steels
Perform hardness, toughness & tensile tests to truly determine material spec’s.
Identify on material racks colour coding schemes for steels