6.7 Springs Flashcards
Torsion spring resist? When are they most effective?
1) Torque forces
2) Supported over a rod or tube
High carbon spring?
least expensive and not ideal for high or low temp
Spring returns to its______ shape
unloaded
Springs are divided into 3 categories
High duty
general duty
static duty
Compression springs are manufactured in what shapes and what are they made out of?
1) Cylindrical and convex
2) Round wire
Compression springs with ____ ends prevent _____
closed
tangling
Compression springs with ground ends permit ____ control and inhibit___
squareness
buckling
Extensions spring common ends are?
loops and hooks
Wire forms can produce what type of movements?
torsional and tensional
What is the most common type of material for all springs and why?
high carbon Steels and least expensive
what spring have good electrical properties
non ferrous
Nickel-based alloys are useful in spring because?
resist corrosion and are nonmagnetic
Before testing springs should?
have a visual inspection and special care given to the hooks.
Engine valve spring is a ____ spring and it must posses good____ and ____ strength
compression
compressive
fatigue
Conical spring compared to parallel spring does not
coil bind when compressed.