Examination of the constancy of pre-curved wire

Examination of the constancy of pre-curved wire

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The parameters “axial displacement” and “diameter of a free wrap” may be subjected to large variations which will affect the accuracy of resulting springs. The “Long Spring” examination method has been developed to visualize the effect of variations on the parameters of coiled spring. Additional experimental setups are not necessary because the wire testing is practice-related by using the coiling machine. Also, a test rig with a sensor wheel was developed to allow continuous, non-destructive examination.

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Description

The parameters “axial displacement” and “diameter of a free wrap” may be subjected to large variations which will affect the accuracy of resulting springs. The “Long Spring” examination method has been developed to visualize the effect of variations on the parameters of coiled spring. Additional experimental setups are not necessary because the wire testing is practice-related by using the coiling machine. Also, a test rig with a sensor wheel was developed to allow continuous, non-destructive examination.

Additional information

Author(s)

Veronika Geinitz, Hans-Jürgen Schorcht, and Mathias Weiß, Ilmenau Technical University, Germany
Publication/Event/Pages

Paper presented at the ITC for Wire & Cable Professionals, Prague, Czech Republic, October 2005. Published in WJI, Oct. 2006, pp. 72-77.
Year

2005

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