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ASME B5.57 Methods for Performance Evaluation of Computer Numerically Controlled Lathes and Turning Centers, 2012
- FOREWORD
- COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B5 COMMITTEE
- 1 SCOPE
- 2 REFERENCES
- 3 NOMENCLATURE
- 4 DEFINITIONS
- 5 ENVIRONMENTAL SPECIFICATIONS [Go to Page]
- 5.1 General
- 5.2 Temperature
- 5.3 Seismic Vibration
- 5.4 Electrical
- 5.5 Utility Air
- 5.6 Other
- 6 ENVIRONMENTAL TESTS [Go to Page]
- 6.1 General
- 6.2 Environmental Thermal Test and Computations
- 6.3 Relative Vibration Tests
- 6.4 Electrical Tests
- 6.5 Utility Air and Other Tests
- 7 MACHINE PERFORMANCE [Go to Page]
- 7.1 General
- 7.2. Positioning Accuracy and Repeatability,Linear Axes
- 7.3 Straightness Error
- 7.4 Angular Error (Yaw) Motions, Linear Axes
- 7.5 Positioning Accuracy and Repeatability,Rotary Axes
- 7.6 Spindle Axis of Rotation
- 7.7 Machine Thermal Tests
- 7.8 Critical Alignments
- 7.9 Contouring Performance Using Circular Tests
- 7.10 Cutting Performance Tests
- 7.11 Multifunction Cycle Test
- 8 MACHINE PERFORMANCE (ADDITIONAL) [Go to Page]
- 8.1 General
- 8.2 Coaxiality of Axes of Rotation
- 8.3 Subsystems Repeatability
- 8.4 Repeatability, Location, and Drift of Tool-Setting System(s)
- 8.5 CNC Performance Tests
- 8.6 Machine Performance as a Measuring Tool
- 8.7 Machining Test Parts
- 8.8 Parametric Tests
- 9 TEST EQUIPMENT AND INSTRUMENTATION [Go to Page]
- 9.1 General
- 9.2 Temperature
- 9.3 Relative Vibration
- 9.4 Displacement
- 9.5 Angle
- 9.6 Pressure
- 9.7 Humidity
- 9.8 Utility Air
- 9.9 Spindle Error Measurement
- 9.10 Straightness Measurements
- 9.11 Test Part Measurement
- Figures
[Go to Page]
- Fig. 4-1 The Six Basic Error Motions of an Axis of Rotation
- Fig. 4-2 Error Motion Polar Plot Showing a Polar Chart Center, a Least-Squares-Circle Center, and Error Motion Values About These Centers
- Fig. 4-3 An Example of a Structural Loop Showing a Workpiece, Spindle, Machine Bed, and Tool
- Fig. 6.2.1.4-1 Setup Showing Two Displacement Sensors Used to Measure the Environmental TemperatureVariation Error (ETVE) Between a Nominal Tool Location and a Work Spindle
- Fig. 6.2.1.4-2 Setup Showing Three Displacement Sensors Used to Measure the Environmental TemperatureVariation Error (ETVE) Between a Nominal Tool Location and a Work Spindle
- Fig. 6.2.1.4-3 Graph of Environmental Temperature Variation Error (ETVE) Data
- Fig. 6.2.1.6-1 Setup Showing Five Displacement Sensors Used to Measure the Environmental Temperature Variation Error (ETVE)
- Fig. 7.2.3-1 Typical Setup for a Laser Interferometer
- Fig. 7.2.7-1 The Full Data Set for the Positioning Deviations of an Axis
- Fig. 7.2.7-2 Positioning Deviations of an Axis, Forward Direction Only
- Fig. 7.2.8-1 Periodic Error of a Linear Axis (Unidirectional)
- Fig. 7.3.1.1-1 Setup for Measuring Straightness Using an Electronic Indicator and a Mechanical Straightedge
- Fig. 7.3.1.2-1 Test Setup for Measuring Straightness Using a Taut Wire
- Fig. 7.3.1.3-1 Test Setup for Measuring Straightness Using an Alignment Laser
- Fig. 7.3.1.4-1 Typical Straightness Interferometer
- Fig. 7.3.2-1 Typical Plot Showing Straightness Data With the Straightness for a Particular Axis Clearly Labeled
- Fig. 7.4.1-1 Typical Setup for Measuring the Angular Error Motion (Yaw) of the Cross-Slide on a Group 1 Machine
- Fig. 7.5.2-1 Schematic for the Measurement of Angular Positioning Using an Indexing Table and a Laser Interferometer
- Fig. 7.5.2-2 Setup for Adjusting the Alignment of an Indexing Table and a Laser Angle Interferometer
- Fig. 7.5.4-1 A Polygon Mounted to a Spindle Axis
- Fig. 7.5.5-1 Typical Setup for Measuring the Angular Positioning Accuracy of a Rotary Axis Using an Angular Encoder
- Fig. 7.5.8.2-1 Typical Setup for Periodic Angular Error Measurement Using Mechanical Means
- Fig. 7.6.3-1 Test Setups for Measuring Spindle Error Motions in the Case of Fixed Sensitive Direction
- Fig. 7.6.4-1 Test Setup for Measuring Spindle Error Motions in the Case of Rotating Sensitive Direction
- Fig. 7.6.4-2 Spindle Test Setup With an Eccentric Ball
- Fig. 7.7.2.1-1 Sensor Data From a Typical Spindle Thermal Warm-Up Test
- Fig. 7.7.2.1-2 Tilts of the Axis Average Line, Spindle Warm-Up Test
- Fig. 7.7.3.1-1 Path for Measuring Thermal Distortion Caused by Moving Linear Axes
- Fig. 7.7.3.2-1 Position Error Versus Time for a Typical Test for Thermal Distortion Caused by a Moving Linear Axis
- Fig. 7.7.4.1-1 Typical Results From a Composite Thermal Error Test
- Fig. 7.8.2.1-1 Setup for Measuring Squareness of the Cross-Slide to the Work Spindle Using a Mechanical Straightedge
- Fig. 7.8.2.1-2 Schematic Showing the Angles Involved When Measuring Cross-Slide Squareness to the Spindle Axis
- Fig. 7.8.2.1-3 Typical Data From a Cross-Slide Out-of-Squareness Measurement
- Fig. 7.8.2.2-1 Two Views of the Cylinder Used for Measuring Machine Out-of-Squareness and Parallelism
- Fig. 7.8.2.2-2 Part-Trace Test Past Centers to Determine Cross-Slide Squareness With the Spindle Axis
- Fig. 7.8.2.2-3 Typical Data From a Cross-Slide Out-of-Squareness Measurement by Part Tracing Past Center
- Fig. 7.8.2.3-1 Cylinder Reversal for Cross-Slide Squareness
- Fig. 7.8.3.1-1 Setup for Straightedge Rotation on a Vertical Spindle Lathe for Measuring Z-Axis Parallelism to the C-Axis
- Fig. 7.8.3.1-2 Setup for Straightedge Rotation on a Horizontal Spindle Lathe for Measuring Z-Axis Parallelism to the C-Axis
- Fig. 7.8.3.2-1 Z-Slide Parallelism Schematic Showing the Test Cylinder
- Fig. 7.8.3.2-2 Typical Data From a Parallelism Measurement Using the Turned Cylinder Method
- Fig. 7.8.4-1 Dual Straightness Measurement for Parallelism
- Fig. 7.8.4-2 Graphing of Both Straightness Measurements for Twice the Angle of Parallelism
- Fig. 7.8.4-3 Setup for Measuring Long-Range Parallelism of the Z-Axis in the Case of a Vertically Traversing Axis
- Fig. 7.9.2-1 Typical Setup for a 360-deg Ball Bar Test
- Fig. 7.9.2-2 Typical Results From a 360-deg Ball Bar Test
- Fig. 7.9.3-1 Typical Ball Bar Setup for the 190-deg Test on a Lathe
- Fig. 7.9.3-2 Typical Results From a 190-deg Ball Bar Test on a Lathe
- Fig. 7.9.4-1 Typical Ball Bar Setup for a 100-deg Test
- Fig. 7.9.4-2 Typical Results of a 100-deg Ball Bar Test
- Fig. 7.10.2-1 A Typical Plot of the Power Loss in the Spindle Idle Run Loss Test
- Fig. 8.2-1 Illustration of Angularity and Offset Between Two Axes of Rotation
- Fig. 8.2.1-1 Typical Setup for the Rim-and-Face Test
- Fig. 8.2.1-2 Setup for Measuring the Sag of a Pair of Indicators
- Fig. 8.2.2-1 Typical Setup for the Reverse Indicator Method
- Fig. 8.2.3-1 Rotation Axes Alignment Using an Optical Alignment Laser
- Fig. 8.2.4-1 Two-Sphere Setup for the Alignment of Two Rotation Axes
- Fig. 8.2.5-1 Schematic of the Measurement of Parallelism of the Z-Axis to the Axis of a Movable Tail Stock
- Fig. 8.2.5.1-1 Setup for Measuring Tail Stock Alignment Using the In-Feed (Z) Axis
- Fig. 8.3.1-1 Tool Holders Used for Tool-Change Repeatability
- Fig. 8.3.2-1 Example Tool Holders to Be Used for Turret Repeatability
- Fig. 8.4.2-1 Test Part for Determining the Location of a Tool-Setting System and Tool-Setting-System Drift
- Fig. 8.6.2-1 Approximate Location of Probed Points, Depending on Probe Configuration, When Measuring a Machined Test Part
- Fig. 8.6.3-1 Approximate Location of Probed Points, Depending on Probe Configuration, When Measuringa Test Sphere
- Forms
[Go to Page]
- FORM 1 MACHINE DESCRIPTION
- FORM 2 ENVIRONMENTAL SPECIFICATIONS GUIDELINES
- FORM 3 ENVIRONMENTAL TESTS (SECTION 6)
- FORM 4 MACHINE PERFORMANCE (SECTION 7)
- FORM 5 COAXIALITY OF AXES OF ROTATION (PARA. 8.2)
- FORM 6 SUBSYSTEMS REPEATABILITY (PARA. 8.3)
- FORM 7 CNC PERFORMANCE TESTS (PARA. 8.5)
- FORM 8 MACHINE PERFORMANCE AS A MEASURING TOOL (PARA. 8.6)
- Tables [Go to Page]
- Table 6.2.2.1-1 Specification Zones Derated Due to an Excessive Expanded Thermal Uncertainty
- Table 6.3.1-1 Performance Parameters Derated Due to Excessive Environmental Vibration
- Table 7.2.7-1 Typical Test Results (Test for Linear Axis up to 2 m)
- Table 7.2.7.9-1 Conversion Factors for Graphically Estimating Standard Uncertainty
- Table 7.7.4.3-1 Typical Presentation of Results From Composite Thermal Error Tests
- Table 7.9.5-1 Typical Results of a Ball Bar Test
- NONMANDATORY APPENDICES
[Go to Page]
- NONMANDATORY APPENDIX A GUIDE FOR USING THE DRAFT TURNING CENTER STANDARD
- NONMANDATORY APPENDIX B 1-DAY TEST FOR MACHINE PERFORMANCE
- NONMANDATORY APPENDIX C THERMAL ENVIRONMENT VERIFICATION TESTS
- NONMANDATORY APPENDIX D SEISMIC VIBRATION VERIFICATION TESTS
- NONMANDATORY APPENDIX E ELECTRICAL POWER VERIFICATION TESTS
- NONMANDATORY APPENDIX F MACHINE FUNCTIONAL TESTS
- NONMANDATORY APPENDIX G MACHINE LEVELING AND ALIGNMENT
- NONMANDATORY APPENDIX H COMPLIANCE AND HYSTERESIS CHECKS
- NONMANDATORY APPENDIX I LASER AND SCALE CORRECTIONS
- NONMANDATORY APPENDIX J DRIFT CHECKS FOR SENSORS, INCLUDING LASERS
- NONMANDATORY APPENDIX K THE PART-TRACE TEST
- NONMANDATORY APPENDIX L DISCUSSION OF THE UNDE AND THERMAL UNCERTAINTY
- NONMANDATORY APPENDIX M CALCULATION OF UNCERTAINTIES
- NONMANDATORY APPENDIX N SIGN CONVENTIONS FOR ERROR VALUES [Go to Page]