This document specifies a laboratory performance test method for power assembly tools (referred throughout the document as \u201ctool\u201d) for installing threaded fasteners.<\/p>\n
It provides a method for the measurement of torque repeatability (scatter)<\/p>\n
over a range of torque rates as specified in this document,<\/p>\n<\/li>\n
over a range of torque adjustment as defined by the manufacturer, and<\/p>\n<\/li>\n
over a number of operating cycles as defined by the manufacturer.<\/p>\n<\/li>\n<\/ul>\n
It provides a method for the measurement of the precision of the built-in torque measurement system for tools incorporating such a feature. See Annex E.<\/p>\n
It gives instructions on equipment parameters, what to test for and how to evaluate and present the test data.<\/p>\n
It is applicable to tools<\/p>\n
of any power source, e.g. pneumatic, hydraulic, and electric, including battery-powered,<\/p>\n<\/li>\n
which apply torque in a generally continuous manner, and<\/p>\n<\/li>\n
within the torque range 0,5 Nm to 2 000 Nm. Outside this range, it is acceptable to modify the test method providing that the modification is documented in the test report.<\/p>\n<\/li>\n<\/ul>\n
It is not applicable to<\/p>\n
impact or impulse wrenches,<\/p>\n<\/li>\n
ratchet wrenches or wrenches with ratcheting clutches, and<\/p>\n<\/li>\n
other tools which advance fasteners in discontinuous increments, overcoming static friction at each increment.<\/p>\n<\/li>\n<\/ul>\n
It allows a test to be performed at any test torque level; however, in order to minimize the number of test joints necessary for a wide range of test torque levels, a list of preferred test torque levels is provided in Annex A.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Symbols <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5 Determination of torque scatter 5.1 General rules for performance tests 5.1.1 Measurements 5.1.2 Ambient conditions 5.1.3 Test installation <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.1.4 Test tool <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.1.5 Test tool condition 5.1.6 Power media <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.2 Test fixtures 5.2.1 General 5.2.2 Test joint <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.2.3 Measuring instrument 5.2.4 Test requirements <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.3 Test method 5.3.1 Test cycles 5.3.2 Run-down phase of the test cycle 5.3.3 Alignment <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.3.4 Torque measurement 5.3.5 Tightening time 5.3.6 Graphical presentation 5.3.7 Electronically controlled tools 5.4 Measurement uncertainty 6 Tool performance over a defined range of torque adjustment 7 Tool performance over a defined number of operating cycles 7.1 General <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 7.2 Operating cycle requirements 7.2.1 Tool operation 7.2.2 Torque level 7.2.3 Operating cycle test joint <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 7.2.4 Ambient conditions 7.2.5 Maintenance <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 7.2.6 Method 7.2.7 Graphical presentation 7.3 Performance test 8 Determination of the combined precision of built-in torque measurement systems 8.1 General <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 9 Evaluation of test results 9.1 Torque scatter 9.2 Combined torque scatter <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 9.3 Torque scatter over a defined range of torque adjustment 9.4 Torque scatter over a defined number of operating cycles 10 Presentation of test results 10.1 Test report <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 10.2 Tool performance rating <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex A (informative) Preferred test torque levels <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex B (informative) Example test fixtures for rotary tools for threaded fasteners <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Annex C (informative) Test joint (additional information) <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex D (informative) Determination of uncertainty of test joint measurements <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Annex E (informative) Determination of the combined precision of built-in torque measurement systems <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Annex F (informative) Example of performance test report <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Annex G (informative) Tool performance rating <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rotary tools for threaded fasteners. Performance test method<\/b><\/p>\n |