| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4 General considerations 4.1 Background 4.2 Required inspection information 4.3 Measurement selection 4.3.1 Substitution of measurement methods 4.3.2 First piece inspection 4.3.3 Sampling and statistical process control <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5 Conventions and measurement positions 5.1 General 5.2 Datum axis 5.3 Left or right flank <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.4 Left hand or right hand helical gears 5.5 Numbering of teeth and flanks <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.6 Numbering of pitches 5.7 Number of pitches \u201ck\u201d in a deviation symbol subscript 6 Types of measuring equipment and principle 6.1 General <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 6.2 Measurement methods 6.2.1 Generative measurement methods <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 6.2.2 Non-generative measurement methods <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 6.2.3 Pitch measurement methods <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6.2.4 Hand-held pitch measuring devices <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 6.2.5 Radial runout measurement <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 6.2.6 Computer tomography methods for small gears 6.2.7 Optical devices for small spur gears <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 6.3 Calibration of equipment 6.4 Tooth thickness, differences between CNC\/CMM and manual measurement <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 6.5 \u201cIn-process\u201d gear measurement on manufacturing machines 6.6 Gear mounting <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 6.7 Example output format from a CNC GMM 6.7.1 General <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 6.7.2 Example evaluations of modified helices and profiles <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 7 Recommended measurement procedure and good measurement practice 7.1 Measurement procedure <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 7.2 Probe problems when measuring aluminium parts 7.3 Suitable artefacts for calibration of measuring machines <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 8 Inspection procedures for gears that are too large for gear inspection machines 8.1 General 8.2 Profile inspection using portable device 8.2.1 Disassembly of segments 8.2.2 Measurement by portable gear inspection device using coordinates <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 8.2.3 Profile inspection by gear tooth caliper <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 8.3 Inspection of helix form deviation 8.3.1 Inspection of helix form deviation on the gear cutting machine <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 8.3.2 Straightness inspection using a cylinder 8.3.3 Inspection of the tooth contact pattern <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 8.4 Inspection of the pitch 8.4.1 Calculation of pitch 8.4.2 Inspection using an automatic device on the cutting machine: inspection of the single circular pitch and the cumulative pitch deviation <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 8.4.3 Manual inspection: inspection of base pitch, pb, and base pitch deviations, fpb 8.5 Measuring tooth thickness 8.6 Measuring gear radial runout and axial runout of reference surfaces 9 Measurement analysis\u00a0\u2014 Profile, helix, pitch and radial runout 9.1 Profile 9.1.1 Profile deviation <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | 9.1.2 Profile deviation diagram <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | 9.1.3 Evaluation of profile diagrams <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | 9.1.4 Algebraic signs of fH\u03b1, fb and f\u03b1 9.1.5 Mean profile slope deviation, fH\u03b1m <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | 9.2 Helix 9.2.1 General <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | 9.2.2 Helix deviation diagram <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | 9.2.3 Evaluation of helix diagrams <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | 9.2.4 Algebraic signs of fH\u03b2 and f\u03b2 <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | 9.2.5 Machine corrections based on mean helix slope deviation, fH\u03b2m <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | 9.3 Pitch 9.3.1 Pitch deviation 9.3.2 Pitch deviation measurement 9.3.3 Relationships of pitch parameters and measuring methods <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | 9.3.4 Calculation of cumulative pitch (index), Fp <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | 9.3.5 Calculation of single pitch, fpi 9.3.6 Calculation of total cumulative pitch deviation, Fp 9.3.7 Calculation of sector pitch deviation, Fpk 9.3.8 Segment gear measurement <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | 9.4 Radial runout, determining eccentricity 9.4.1 Measuring principle 9.4.2 Evaluation of measurement <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | 10 Interpretation of profile, helix, pitch and radial runout results 10.1 Interpreting measurement results 10.2 Procedure for interpreting measurement results <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | 10.3 Recognition of common manufacturing errors 10.3.1 General 10.3.2 Example of a profile with pressure angle deviation 10.3.3 Example of profile deviations with varying pressure angle deviation <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | 10.3.4 Hob runout or shaping cutter deflection <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | 10.3.5 Consistent mean helix slope deviation 10.3.6 Helix slope variation <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | 10.3.7 Profile control diameter not achieved 10.3.8 Variation in profile non-clean up and profile control diameter not achieved <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | 10.3.9 Pitch results with radial runout of the gear blank 10.3.10 Pitch with indexing deviations <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | 10.3.11 Pitch with repeating deviation patterns that may cause noise 11 Single flank composite testing 11.1 Single flank composite testing principle <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | 11.2 Single flank composite test 11.2.1 Single flank test setup <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | 11.2.2 Single flank composite deviations <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | 11.3 Single flank measurement with master gear 11.3.1 Master gear requirements 11.3.2 Influence of profile deviations <\/td>\n<\/tr>\n | ||||||
| 74<\/td>\n | 11.3.3 Influence of pitch deviations 11.3.4 Influence of helix deviations <\/td>\n<\/tr>\n | ||||||
| 77<\/td>\n | 11.4 Single flank measurement of product gear pair 11.4.1 Differences between tests with a master gear and between two product gears 11.4.2 Identification and location of defects 11.4.3 Selective meshing of gears <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | 11.5 Data analysis by the Fourier transform method <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | 12 Additional measurements 12.1 Flank measurements 12.1.1 General 12.1.2 Twist measurement <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | 12.1.3 Topographical measurement <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | 12.1.4 Undulations <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | 12.2 Surface roughness measurement 12.3 Tooth root fillet radius measurement <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | 13 Filters and data density 13.1 General 13.2 Examples of filtered results 13.3 Working principle of the Gauss 50\u00a0% filter <\/td>\n<\/tr>\n | ||||||
| 89<\/td>\n | 13.4 Filter limitations 14 Additional calculations 14.1 Calculation of single pitch deviation, fpt, from normal base pitch measurements <\/td>\n<\/tr>\n | ||||||
| 90<\/td>\n | 14.2 Additional calculations for normal base pitch measurements 14.2.1 Included parameters 14.2.2 Calculation of normal base pitch deviation, fpbn 14.2.3 Calculation of mean normal base pitch deviation, fpbnm 14.3 Additional calculations for profile measurements 14.3.1 Included parameters <\/td>\n<\/tr>\n | ||||||
| 91<\/td>\n | 14.3.2 Mean base diameter deviation and mean pressure angle deviation <\/td>\n<\/tr>\n | ||||||
| 92<\/td>\n | 14.3.3 Calculation of effective base diameter, db eff 14.3.4 Calculation of effective transverse pressure angle, \u03b1t eff 14.3.5 Calculation of effective normal pressure angle, \u03b1n eff <\/td>\n<\/tr>\n | ||||||
| 93<\/td>\n | 14.3.6 Calculation of mean transverse pressure angle deviation, f\u03b1mt 14.3.7 Calculation of mean normal pressure angle deviation, f\u03b1mn 14.4 Additional calculations for helix measurements 14.4.1 Included parameters <\/td>\n<\/tr>\n | ||||||
| 94<\/td>\n | 14.4.2 Required preliminary data 14.4.3 Calculation of effective helix angle at the measurement diameter, \u03b2M eff 14.4.4 Calculation of effective lead, pz eff <\/td>\n<\/tr>\n | ||||||
| 95<\/td>\n | 14.4.5 Calculation of effective helix angle at the standard pitch diameter, \u03b2eff 14.4.6 Calculation of mean lead deviation, fpzm 14.4.7 Calculation of mean helix angle deviation, f\u03b2m <\/td>\n<\/tr>\n | ||||||
| 97<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Code of inspection practice – Measurement of cylindrical gear tooth flanks<\/b><\/p>\n |