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1、 Reference number ISO 15616-4:2008(E) ISO 2008 INTERNATIONAL STANDARD ISO 15616-4 First edition 2008-12-15 Acceptance tests for CO2-laser beam machines for high quality welding and cutting Part 4: Machines with 2-D moving optics Essais de rception des machines de soudage et de coupage de qualit par
2、faisceau laser CO2 Partie 4: Utilisation doptiques mobiles 2D Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from IHS -,-,- IS
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6、iven below. COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at t
7、he address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reserved Copyright International Organizat
8、ion for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 15616-4:2008(E) ISO 2008 All rights reserved iii Foreword ISO (the International Organization
9、 for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has
10、the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Intern
11、ational Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publicati
12、on as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent right
13、s. ISO 15616-4 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding. This first edition of ISO 15616-4 cancels and replaces ISO/TS 17477:2003, which has been technically revised. ISO 15616 consists
14、of the following parts, under the general title Acceptance tests for CO2-laser beam machines for high quality welding and cutting: Part 1: General principles, acceptance conditions Part 2: Measurement of static and dynamic accuracy Part 3: Calibration of instruments for measurement of gas flow and p
15、ressure Part 4: Machines with 2-D moving optics Requests for official interpretations of any aspect of this part of ISO 15616 should be directed to the Secretariat of ISO/TC 44/SC 10 via a national standards body, a complete listing which can be found at www.iso.org. Copyright International Organiza
16、tion for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO
17、Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 15616-4:2008(E) ISO 2008 All rights reserved 1 Acceptance tests for CO2-laser beam machines for high quality welding and cutting Part
18、 4: Machines with 2-D moving optics 1 Scope This part of ISO 15616 provides minimum requirements for acceptance testing, using practical test methods, for CO2-laser beam machines for high quality welding and cutting in two dimensions (2-D), having a fixed workpiece on the platen and moving optics. T
19、his part of ISO 15616 is not applicable to CO2-laser beam machines which use an articulated robot, nor does it apply to work stations, such as a welding positioner, fixed board cutter, etc. This part of ISO 15616 does not cover hazard protection devices, such as those for discharging chips and parti
20、cles generated during welding and cutting. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 deviation from intersection longest distance between any two points that is made by three or more straight intersects 2.2 mark, verb trace the trajecto
21、ry of the machining head when the laser machine is being operated and mark it on paper using a ballpoint pen, an equivalent marking pen installed on the tip of the machining head, a low-power laser beam, or an equivalent instrument agreed between the parties concerned 3 Classification of machine typ
22、e Judgement criteria/allowance values are applied to machines classified into two types: Class A: the laser beam source is built into the moving machine; Class B: the laser beam source is not built into the moving machine. Copyright International Organization for Standardization Provided by IHS unde
23、r license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 15616-4:2008(E) 2 ISO 2008 All rights reserved 4 Acceptance test conditions 4.1 Installation The laser machine under test shall be instal
24、led in such a way that the welding and cutting operations will not significantly be disturbed by vibrations and temperature variations. 4.2 Power supply The power source for the laser machine and its cooling system shall conform with the manufacturers specifications for the equipment. Output voltage
25、 fluctuations shall be within 10 % of the nominal voltage. 4.3 Cooling system If the cooling system is not supplied by the welding and cutting equipment manufacturer, it shall nevertheless conform with the welding and cutting equipment manufacturers specifications for water flow rate, temperature co
26、ntrol range, cooling capacity, etc. The quality of the cooling water (purity, conductivity, pH, etc.) shall be as specified by the welding and cutting equipment manufacturer. 4.4 Gas supply and gas supply system The flow rate and quality of the laser gases, assist gases or shield gas (for plasma rem
27、oval, cutting and welding), and purging gases shall be as specified by the welding and cutting equipment manufacturer. 4.5 Instructions for use Technical information necessary for operation, maintenance and control of equipment, and at least the minimum information related to the safety of welding a
28、nd cutting equipment, shall be provided by the equipment supplier. 5 Acceptance test preparation 5.1 Verification of parts Verify that all specified parts of the equipment are available and properly installed. 5.2 Machine accuracy verification testing 5.2.1 Accuracy test variables Check the followin
29、g machine variables for accuracy in accordance with 5.2.3 and 5.2.4: a) trajectory accuracy; b) straightness of motion in the X-axis direction; c) straightness of motion in the Y-axis direction; d) squareness between the X and Y axes; e) positioning accuracy of motion in the X-axis direction; f) pos
30、itioning accuracy of motion in the Y-axis direction; g) machining speed accuracy. NOTE See also Table 1. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking
31、permitted without license from IHS -,-,- ISO 15616-4:2008(E) ISO 2008 All rights reserved 3 5.2.2 Measuring instruments The measuring instruments used for the accuracy tests shall be calibrated measuring instruments, such as standard scale, tape measure, dial gauge and/or steel wire, or other measur
32、ing instruments agreed between the parties concerned. 5.2.3 Test methods 5.2.3.1 Trajectory accuracy The laser machine shall be used to draw a diagram, shown in Figure 1, with external dimensions 800 mm 800 mm. The starting position shall be A and follow the sequence as listed under Figure 1, i.e. A
33、, B, C, D, A, C, H, etc. For laser machines with an effective machining range less than 800 mm 800 mm, the largest square covering the effective machining range shall be drawn. The pattern shall be drawn at a speed of 1 m/min using the numerical control system of the machine. Deviations from the int
34、ersections, meandering of trajectories, and deviations of arc trajectories shall be monitored in accordance with the following procedures. For laser machines with a single-sided drive, the test shall be carried out on the driving side. The pattern shown in Figure 1 shall be drawn in the specified se
35、quence using the following criteria. a) One side of the external square shall be drawn parallel to the X-axis. b) All straight lines shall be drawn continuously. c) The circle shall be drawn continuously. d) The circle shall be overwritten once in both the clockwise and counterclockwise directions.
36、e) Dwell time shall be determined by the parties concerned. The deviation of any line at an intersection where three or more straight lines come together (A to H) or intersect (J to R) shall be measured. Meandering of the trajectory shall be checked by measuring the maximum deviation of the actual t
37、rajectory from each straight ruled line shown in Figure 1. Deviation of the arc trajectory shall be checked by measuring the maximum deviation of the circle that has been overwritten in both the clockwise and counterclockwise directions. Dimension in millimetres Sequence of trajectory: A B C D A C H
38、 B D F A G E C G B E D H F E H G F G H E F Figure 1 Diagram for evaluatiion of trajectory accuracy Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permit
39、ted without license from IHS -,-,- ISO 15616-4:2008(E) 4 ISO 2008 All rights reserved 5.2.3.2 Straightness of motion in X-axis direction Fit a ballpoint pen onto the machining head and draw a straight line on the paper placed on a flat plate, such as a steel plate, or scribe a straight line using th
40、e low power laser beam and moving the laser machine in the X-axis direction. Stretch a steel wire between both ends of this straight line, and measure the maximum deviation of the straight line from the steel wire, using the measurement scope, at every 1 m in the X-axis direction. This test should b
41、e performed over the whole range of the effective machining length of the laser machine. 5.2.3.3 Straightness of motion in Y-axis direction Fit a ballpoint pen onto the machining head and draw a straight line on the paper placed on a flat plate, such as a steel plate, or scribe a straight line using
42、 the low power laser beam and moving the laser machine in the Y-axis direction. Stretch a steel wire between both ends of this straight line, and measure the maximum deviation of the straight line from the steel wire, using the measurement scope, at every 1 m in the Y-axis direction. This test shoul
43、d be performed over the effective machining range of one machining head. 5.2.3.4 Squareness between X-axis and Y-axis Mark a square parallel to the X-axis and having sides of length 2 m (or, for a laser machine having an effective machining range of less than 2 m 2 m, the largest square covering the
44、 effective machining range). Measure the lengths of the two diagonals with a tape measure, and determine the difference in length between them. 5.2.3.5 Positioning accuracy of motion in the X-axis direction Make a unidirectional movement of 1 m from an arbitrarily selected point in the X-axis direct
45、ion using a numerically controlled command. Measure the length of the movement using a standard scale, and determine the difference in length between the programmed value and measured value. 5.2.3.6 Positioning accuracy of motion in the Y-axis direction Make a unidirectional movement of 1 m from an
46、arbitrarily selected point in the Y-axis direction by a numerically controlled command. Measure the length of the movement using a standard scale, and determine the difference in length between the programmed value and the measured value. 5.2.3.7 Machining speed accuracy Measure the deviation betwee
47、n the programmed speed and the actual machining speed, in regard to 1/4, 1/2, and 1/1 times the maximum speed in the X-axis and Y-axis directions respectively. Measurement shall be made at the time when the head passes between the two target positions, after the normal constant speed has been attain
48、ed. For numerically controlled machines, the speed can be checked using the self-diagnosis function. 5.2.4 Acceptance criteria The results of the tests carried out in accordance with 5.2 shall be within the acceptance limits given in Table 1. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 01/31/2009 05:12:22 MSTNo reproduction or networking permitted without license from I