write 200 words (screw drivers )
To select materials based onproperties, manufacturing, sustainability, available time, cost andperformance.
Keywords:Â Â Â Â Â Â properties, processing, performance, sustainability
PrerequisiteKnowledge:         basic knowledge of general materials’ properties.
These factors can be broken down into the following areas.
Material Properties
The expected level of performance from the material
            Material Cost and Availability ?
            Processing - must consider how to make the part
Environment – the effect that the service environment has on thepart The effect the part has on the environment. The effect thatmanufacturing/processing has on the environment.
Time available to make the component
