6.7 Springs Flashcards
Why is spring steel used?
Great hardness, strength and elasticity.
What three classes of spring are there?
High duty
General duty
Static load springs
What is another name for a cylindrical spring?
Straight spring or standard spring.
Why are conical springs used?
Where cylindrical would take too much space.
What is convex spring?
Barrel shaped.
Where can you find hourglass springs?
Vibe monitors and matresses.
What determines the material the spring is made from?
Loads and environment.
What is the free length?
Overall length of a spring in the unloaded position.
What is the mean diameter?
Outside spring diameter minus one wire diameter
What is slenderness ratio?
Ratio of spring length to mean coil diameter.
What are the commonly used compression springs ends?
Closed and square
Closed and ground
Double closed
Open end
Why are double closed ends used sometimes in compression springs?
They provide stability when the slenderness ratio is too high and might buckle.
