This Standard establishes methodology for specifying and testing the performance of Computer Numerically Controlled (CNC) machining centers. In addition to clarifying the performance evaluation, this Standard facilitates performance comparisons between machines by unifying terminology, general machine classification, and the treatment of environmental effects. It provides a series of tests that should be used to perform acceptance testing (runoff) of new and reconditioned machines and could be used to verify continued capability of production machines, already in operation, through periodic testing. The set of acceptance tests and the specification limits for machine conformance shall be the subject of contractual agreement between the Supplier and the User. This Standard is rather comprehensive; therefore, for smaller and less expensive machines the conformance to specifications could be based on a recommended subset of tests to evaluate machine performance.

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PDF Pages	PDF Title
5	CONTENTS
6	Figures
8	Forms Tables
9	NONMANDATORY APPENDICES
10	FOREWORD
11	COMMITTEE ROSTER
12	CORRESPONDENCE WITH THE B5 COMMITTEE
13	Chapter 1 Scope 1.1 GENERAL 1.2 PERFORMANCE FORMS
14	1.1 General Form
16	1.2 Chapter 5 Environmental Specifications Guidelines
18	1.3 Chapter 6 Environmental Tests
19	1.4 Chapter 7 Machine Performance
27	1.5 Chapter 9 Cutting Performance Tests
29	1.6 Multifunction Cycle Test
30	Chapter 2 References
31	Chapter 3 Nomenclature
35	Chapter 4 Definitions 4.1 GLOSSARY
36	4.1 Schematic Diagrams of the Six Basic Degrees of Freedom of an Axis of Rotation
43	4.4 Error Motion Polar Plot Showing Polar Chart (PC) Center, a Minimum Radial Separation (MRS) Center, and Error Motion Values About These Centers
48	4.2 MACHINE CLASSIFICATIONS
49	4.1 Key to Unit Code
55	Chapter 5 Environmental Specifications 5.1 GENERAL 5.2 TEMPERATURE 5.3 SEISMIC VIBRATION
56	5.4 ELECTRICAL 5.5 UTILITY AIR
57	5.6 OTHER
58	Chapter 6 Environmental Tests 6.1 GENERAL 6.2 ENVIRONMENTAL TEMPERATURE VARIATION ERROR (ETVE)
63	6.3 RELATIVE VIBRATION TESTS 6.1 Specification Zones Derated Due to an Excessive Expanded Thermal Uncertainty
64	6.2 Example Calculations for Derating of Specification Zones Due to Thermal Uncertainty
65	6.4 ELECTRICAL TESTS 6.5 UTILITY AIR AND OTHER TESTS 6.3 Specification Zones Derated Due to an Excessive Angular Expanded Thermal Uncertainty 6.4 Performance Parameters Derated Due to Excessive Environmental Vibration
67	Chapter 7 Machine Performance 7.1 GENERAL
68	7.2 MACHINE COMPLIANCE AND HYSTERESIS
77	7.12 Full Data Set for the Positioning Deviations of an Axis, Bidirectional
78	7.13 Positioning Deviations of an Axis, Forward Direction Only
79	7.2 Typical Test Results for the Positioning and Repeatability of a Linear Axis (Measured in um)
81	7.15 Periodic Error, P, of a Linear Axis
91	7.33 Test Method for Radial Motion With a Rotating Sensitive Direction and the Ball Mounted Eccentric to the Spindle
95	7.37 Sensor Data From a Typical Spindle Thermal Warm-Up Test
96	7.38 Tilts of the Axis Average Line, Spindle Warm-Up Test
98	7.40 Position Error Versus Time for a Typical Test for Thermal Distortion Caused by a Moving Linear Axis
104	7.9 MACHINE PERFORMANCE AS A MEASURING TOOL
107	7.10 CNC PERFORMANCE TESTS
114	Chapter 8 Machining Test Parts 8.1 GENERAL
117	8.3 MACHINING TESTS FOR FOUR- AND FIVE AXIS MACHINING CENTERS 8.4 PRODUCTION PARTS
119	8.1 Precision Contouring Test Part Inspection Results
120	Chapter 9 Cutting Performance Tests 9.1 GENERAL 9.2 COMPLETE SET OF TESTS 9.1 Metric to English Conversion Used in This Standard
121	9.3 MACHINING CENTER RANGES 9.4 SPINDLE IDLE RUN LOSS TEST 9.5 CHATTER LIMITS TESTS AND FULL TORQUE TEST
124	9.4 Standard Tools and Default Machine and Cutting Parameters for the Face Milling Chatter Test(s)
125	9.5 Standard Tools and Default Machine and Cutting Parameters for the Chatter Tests Using Solid (HSS or Carbide) End Mills 9.6 Standard Tools and Default Machine and Cutting Parameters for the Chatter Test for End Mills With Carbide Inserts
136	Chapter 10 Multifunction Cycle Test 10.1 GENERAL 10.2 PROCEDURE 10.3 FUNCTIONAL CHECK
137	Chapter 11 Test Equipment and Instrumentation 11.1 GENERAL 11.2 TEMPERATURE 11.3 RELATIVE VIBRATION 11.4 DISPLACEMENT
138	11.5 ANGLE 11.6 PRESSURE 11.7 HUMIDITY 11.8 UTILITY AIR 11.9 SPINDLE ERROR MEASUREMENT
139	11.10 INDICATORS FOR STRAIGHTNESS MEASUREMENTS 11.11 TEST PART MEASUREMENT
141	A GUIDE FOR USING THIS STANDARD
143	B THERMAL ENVIRONMENT VERIFICATION TESTS
145	C SEISMIC VIBRATION VERIFICATION TESTS
149	D ELECTRICAL POWER MONITORING TESTS
150	E MACHINE FUNCTIONAL TESTS
152	F MACHINE LEVELING AND ALIGNMENT
153	G CLARIFICATIONS FOR CUTTING PERFORMANCE TESTS
165	H LASER AND MACHINE SCALE CORRECTIONS
166	I DRIFT CHECKS FOR SENSORS, INCLUDING LASERS
169	J EXAMPLE BALL BAR PATTERNS FOR FOUR- AND FIVE-AXIS MACHINING CENTERS
177	K DISCUSSION OF THE UNDE AND THERMAL UNCERTAINTY
182	L STRAIGHTEDGE REVERSAL TECHNIQUE
184	M CALCULATION OF UNCERTAINTIES
187	N SIGN CONVENTIONS FOR ERROR VALUES

Published By	Publication Date	Number of Pages
ASME	2005	194


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Standard Title	ASME B5.54 – 2005: Methods for Performance Evaluation of Computer Numerically Controlled Machining Centers – Reaffirmed 2015
Published Code	ASME
Publication Date	2005
Pages Count	194

ASME B5.54 2005 R2015

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