ISO 22705-1:2021
Springs — Measurement and test parameters — Part 1: Cold formed cylindrical helical compression springs
This document specifies the measurement and test methods for the general characteristics of cold formed helical compression springs made from round wire, excluding dynamic testing.
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Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Environmental conditions
5 Qualifications of the person(s) performing the work
6 Geometries of guiding and supporting devices
7 Measuring and testing equipment
8 Measurement and test parameter for technical cold formed cylindrical compression springs
8.1 Free length (L0)
8.1.1 General
8.1.2 Type of characteristic
8.1.3 Measuring and/or testing equipment
8.1.4 Conditions of measurement and testing
8.1.5 Method of measurement and testing
8.1.6 Test location on the product
8.2 Outside diameter (De)
8.2.1 General
8.2.2 Type of characteristic
8.2.3 Measurement and/or testing equipment
8.2.4 Conditions of measurement and testing
8.2.5 Method of measurement and testing
8.2.6 Test location on the product
8.3 Inside diameter (Di)
8.3.1 General
8.3.2 Type of characteristic
8.3.3 Measuring and/or testing equipment
8.3.4 Conditions of measurement and testing
8.3.5 Method of measurement and testing
8.3.6 Test location on the product
8.4 Total number of coils (nt), number of active coils (n) and coil direction
8.4.1 General
8.4.2 Type of characteristic
8.4.3 Measuring and/or testing equipment
8.4.4 Conditions of measurement and testing
8.4.5 Method of measurement and testing
8.4.6 Test location on the product
8.5 Applied end coils
8.5.1 General
8.5.2 Type of characteristic
8.5.3 Measuring and/or testing equipment
8.5.4 Conditions of measurement and testing
8.5.5 Method of measurement and testing
8.5.6 Test location on the product
8.6 Solid length (Lc)/solid force (Fc)
8.6.1 General
8.6.2 Type of characteristics
8.6.3 Measuring and/or testing equipment
8.6.4 Conditions of measurement and testing
8.6.5 Method of measurement and testing
8.6.6 Test location on the product
8.7 Spring load (F)
8.7.1 General
8.7.2 Type of characteristic
8.7.3 Measuring and/or testing equipment
8.7.4 Conditions of measurement and testing
8.7.5 Method of measurement and testing
8.7.6 Test location on the product
8.8 Spring pitch (p)/distance between the coils
8.8.1 General
8.8.2 Type of characteristic
8.8.3 Measuring and/or testing equipment
8.8.4 Conditions of measurement and testing
8.8.5 Method of measurement and testing
8.8.6 Test location on the product
8.9 Ground surface/angle
8.9.1 General
8.9.2 Type of characteristic
8.9.3 Measuring and/or testing equipment
8.9.4 Conditions of measurement and testing
8.9.5 Method of measurement and testing
8.9.6 Test location on the product
8.10 Perpendicularity (e1)
8.10.1 General
8.10.2 Type of characteristic
8.10.3 Measuring and/or testing equipment
8.10.4 Conditions of measurement and testing
8.10.5 Method of measurement and testing
8.10.6 Test location on the product
8.11 Parallelism (e2)
8.11.1 General
8.11.2 Type of characteristic
8.11.3 Measuring and/or testing equipment
8.11.4 Conditions of measurement and testing
8.11.5 Method of measurement and testing
8.11.6 Test location on the product
8.12 Shear-off burr
8.12.1 General
8.12.2 Type of characteristic
8.12.3 Measuring and/or testing equipment
8.12.4 Conditions of measurement and testing
8.12.5 Method of measurement and testing
8.12.6 Test location on the product
Annex A (informative) Calculation of spring rate (R)
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Environmental conditions
5 Qualifications of the person(s) performing the work
6 Geometries of guiding and supporting devices
7 Measuring and testing equipment
8 Measurement and test parameter for technical cold formed cylindrical compression springs
8.1 Free length (L0)
8.1.1 General
8.1.2 Type of characteristic
8.1.3 Measuring and/or testing equipment
8.1.4 Conditions of measurement and testing
8.1.5 Method of measurement and testing
8.1.6 Test location on the product
8.2 Outside diameter (De)
8.2.1 General
8.2.2 Type of characteristic
8.2.3 Measurement and/or testing equipment
8.2.4 Conditions of measurement and testing
8.2.5 Method of measurement and testing
8.2.6 Test location on the product
8.3 Inside diameter (Di)
8.3.1 General
8.3.2 Type of characteristic
8.3.3 Measuring and/or testing equipment
8.3.4 Conditions of measurement and testing
8.3.5 Method of measurement and testing
8.3.6 Test location on the product
8.4 Total number of coils (nt), number of active coils (n) and coil direction
8.4.1 General
8.4.2 Type of characteristic
8.4.3 Measuring and/or testing equipment
8.4.4 Conditions of measurement and testing
8.4.5 Method of measurement and testing
8.4.6 Test location on the product
8.5 Applied end coils
8.5.1 General
8.5.2 Type of characteristic
8.5.3 Measuring and/or testing equipment
8.5.4 Conditions of measurement and testing
8.5.5 Method of measurement and testing
8.5.6 Test location on the product
8.6 Solid length (Lc)/solid force (Fc)
8.6.1 General
8.6.2 Type of characteristics
8.6.3 Measuring and/or testing equipment
8.6.4 Conditions of measurement and testing
8.6.5 Method of measurement and testing
8.6.6 Test location on the product
8.7 Spring load (F)
8.7.1 General
8.7.2 Type of characteristic
8.7.3 Measuring and/or testing equipment
8.7.4 Conditions of measurement and testing
8.7.5 Method of measurement and testing
8.7.6 Test location on the product
8.8 Spring pitch (p)/distance between the coils
8.8.1 General
8.8.2 Type of characteristic
8.8.3 Measuring and/or testing equipment
8.8.4 Conditions of measurement and testing
8.8.5 Method of measurement and testing
8.8.6 Test location on the product
8.9 Ground surface/angle
8.9.1 General
8.9.2 Type of characteristic
8.9.3 Measuring and/or testing equipment
8.9.4 Conditions of measurement and testing
8.9.5 Method of measurement and testing
8.9.6 Test location on the product
8.10 Perpendicularity (e1)
8.10.1 General
8.10.2 Type of characteristic
8.10.3 Measuring and/or testing equipment
8.10.4 Conditions of measurement and testing
8.10.5 Method of measurement and testing
8.10.6 Test location on the product
8.11 Parallelism (e2)
8.11.1 General
8.11.2 Type of characteristic
8.11.3 Measuring and/or testing equipment
8.11.4 Conditions of measurement and testing
8.11.5 Method of measurement and testing
8.11.6 Test location on the product
8.12 Shear-off burr
8.12.1 General
8.12.2 Type of characteristic
8.12.3 Measuring and/or testing equipment
8.12.4 Conditions of measurement and testing
8.12.5 Method of measurement and testing
8.12.6 Test location on the product
Annex A (informative) Calculation of spring rate (R)
Bibliography