ISO 22705-2 Springs - Test for Cold Formed Cylindrical Coil Extension Springs

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 22705-2 testing. This standard specifies measurement and test methods for the general characteristics of cold-formed helical extension springs made of round wire, excluding dynamic testing.

The spatial distribution and equipment of the facility must allow for reliable execution of measurements and tests. Measurements and tests should be made in a normal workshop environment at ambient temperature.

ISO 22705-2 is a standard that specifies measurement and test parameters for cold formed cylindrical helical extension springs. These springs are widely used in a variety of applications including automotive, aerospace and industrial machinery.

The standard provides guidance on the following parameters:

• Basic dimensions: This includes the wire diameter, the outside diameter, and the free length of the spring.
• Load/deflection characteristics: This includes measuring the load required to extend the spring to a certain length and the corresponding deflection.
• Initial tension: This refers to the force required to separate the coils of the spring when not loaded.
• Fatigue life: This involves subjecting the spring to a cyclic loading and unloading test to determine its fatigue life.
• Strength limit: This is the maximum stress amplitude that a spring can withstand without failing after a certain number of cycles.
• Set: This is the amount of permanent deformation a spring experiences after it has been repeatedly loaded and unloaded.

ISO 22705-2 also provides guidelines for test equipment and procedures to be used for each of these parameters. By following these guidelines, manufacturers can ensure that their springs meet required specifications and will perform reliably in their intended applications.

EUROLAB assists manufacturers with ISO 22705-2 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.