Method for manufacturing spring and spring
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United States of America Patent
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Apr 23, 2024
Grant Date -
May 13, 2021
app pub date -
May 9, 2019
filing date -
May 9, 2018
priority date (Note) -
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Abstract
Provided is a method of manufacturing a spring for inspecting the stress distribution of the spring under load. The method for manufacturing a spring (1) includes the steps of applying a load to the spring (1), measuring the stress of the spring (1) under the load, and releasing the load applied to the spring (1), the measuring the stress of the spring (1) being made by measuring the stress on the surface of the active part of the spring (1) using X-ray diffraction with the cos α method, and the method further including the step of determining whether the magnitude of the stress of the spring (1) meets a criterion.
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