Dictionnary
Bonderizing : surface treatment consisting of coating with phosphate to prevent from oxidation.
Casing : endless close wound coil
Coil of wire : bundle of wire.
Compression spring : wire coiled in an helix shape, with open wound coils, providing a force when compressed.
Dereeler : motorized turntable to provide the wire to the coiler (or wire bender).
Dimension control : measure of spring dimensions (outer diameter, free length, pitch, size of hooks).
Double torsion spring : double body torsion spring
Extension spring : wire coiled in an helix shape, with close wound coils, providing a force when pulled.
Grinding machine : machine used to grind the ends of a compression springs so they become flat
Grinding wheel : specific stone used to grind the spring ends
Initial tension : pitch reduction at each end of a compression spring.
Length gage : equipment used directly on the spring coiler to measure the OD and the length of the spring.
Load tester : equipment to measure the load of compression or extension springs at a determined height
Loop / hook : specific shape of the ends of an extension spring to hook it.
Passivation : deep washing of springs and wire parts after the forming, grinding and stress relieving operations
Pitch : space between coils
Setting : bringing a spring to solid height
Hot setting : bringing a spring to solid height under high temperature
Shot peening : process consisting a projecting violently more or less hard particles to homogenize the surface of the wire after the coiling operation (valve springs).
Spring coiler : specific machine tool dedicated to the production of springs
Spring wire : high tensile wire quality used to manufacture springs
Square end : pitch reduction at the extremities of a compression spring
Straightener : equipment used to straighten the wire when exiting the dereeler
Stress relieving oven : oven used to stress relieve the springs after the coiling operation
Stripping operation : removal of the enamel coating on a copper enameled wire.
Tempering : Heat treatment intended to homogenize the molecular structure of the wire after it's forming
Tensile : force required to break a wire when extended.
Torque : load applied by a torsion or double torsion spring
Torsion spring : wire coiled in an helix shape, with close wound coils, or not, with legs to apply a torque when under constraint.
Torsion tester : testing machine to check the torque of a torsion spring.
Tribo finish : Process consisting in brewing springs with more or less hard particles to homogenize the surface of the wire.
Wire formed part : wire formed in 2D or 3D shape
Wire forming machine : machine used to form wire in 2D or 3D
