ASTM E – “Standard Practice for Contact. Ultrasonic Testing of Welds Using Phased Arrays”. ○. ASME Code Case – “Use of Ultrasonic. ASTM E + REDLINE: STANDARD PRACTICE FOR CONTACT ULTRASONIC TESTING OF WELDS USING PHASED ARRAYS – INCLUDES STANDARD +. ASTM E相控阵操作 – 5/13/ Michael Moles PROPOSED CHANGES TO: APPENDIX IV – PHASED.
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This method is suitable for large planar? If laterally focused beams are used, this can be considered for data collection s2700 as above. Personnel performing examinations to this standard should list the qualifying credentials in the examination report. Note the amplitude responses from the side drilled holes is the same for each hole even though the angle used to detect the hole and the sound path to the hole is different in each instance.
The practice is intended to be used on thicknesses of 9 to mm 0. Data, in the form of A-scans from each focal law used, shall be collected at increments of not e22700 than 2 mm with at least three increments for the length of the smallest required detectable defect, that is, a defect length of 3 mm would require increments of not greater than 1 mm along the scan axis.
Codes and code cases have been developed, or are being developed, to cover phased array weld inspection requirements by organizations such as ASME. The modeled coverage in the upper portion of Fig. In addition, the alternative method and its equipment shall meet all the performance requirements of this standard.
SE provides details to be considered in the procedures used. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Consideration must be given to these re?
Current edition approved Aug. S-scans have the advantage over E-scans that all the specified inspection angles can be covered at the same time. The practice is intended to be used on thicknesses of 9 to mm 0. Commercial software permits the operator to easily make set ups without zstm knowledge of the phasing requirements. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
ASTM E相控阵操作_图文_百度文库
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. This may include the following information: Training programs for phased arrays have been set up worldwide. Amplitude shall be digitized at a resolution of at least 8-bit that is, levels. Basis of Application 6. Descriptive sketches are usually recommended. Practice E recommends methods of assessing performance characteristics of phased array probes and systems.
The method for the system used is best described for each instrument in the operating manual for that instrument. A remote portable PC connected to the instrument may also be used for this purpose.
ASTM E2700 – 14
NOTE—Butt welds should be examined from both sides of the weld and preferably from the bevel opening side when access 2e700. For thin sections, it may be possible to use a single stand-off position with either E-scans or S-scans. Not all possible con? The distance forward and backward that the probe is moved is determined by the scan plan to ensure full volume coverage. Other metallic materials can be examined using this practice provided reference standards can be developed that demonstrate that the particular material and weld can be successfully penetrated by an ultrasonic beam.
Other metallic materials can be examined using this practice provided reference standards can be developed that demonstrate that the particular material and weld can be successfully penetrated by an ultrasonic beam.
ASTM E – 14 – Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
e27700 Practices for specific geometries such as spot welds are not included. Other metallic materials can be examined using this practice provided reference standards can be developed that demonstrate that the particular material and weld can be successfully penetrated by an ultrasonic beam. Some phasedarray systems may include options for entering some items into a report format and incorporating S-scan or B-scan images as part of the report. When water is used, it should be clean and de-aerated if possible.
Practices for specific geometries such as spot welds are not included. Sample illustrations are shown in Figs. While some scan patterns emulate manual technology, other scans for example, S-scans are unique to phased arrays.
Greater and lesser thicknesses may be tested using this standard practice if the technique can be demonstrated to provide adequate detection on mockups of the same wall thickness and geometry 1. Your comments are invited asm for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
This practice is based on experience with ferrous and aluminum alloys. Historical Version s – view previous versions of standard.
ASTM E2700-14 Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
For thick wall sections, multiple probe stand-offs or multiple focal law stand-offs will be required for linear scanning to ensure full volume coverage. In some cases a phased array probe may be used without a refracting wedge or delay-line that is, just a hard wear-face surface.
A number in parentheses indicates the year of last reapproval. For additional pertinent information, see Practices EEand E The preferred probe placement for the angle beam is on the surface where the weld bevel opening occurs. The values given in parentheses are for information only.