ASTM E2700 PDF
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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ASTM E2700-14 Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
The couplant used should not be injurious to the material to be examined, should form a thin? E — 09 7. The practice is intended to be used on thicknesses of 9 to mm 0. Therefore, it is necessary that the display used provide a uniform color code related to amplitude at all sound path distances. Examination from both surfaces of the web-plate plate should be used when access permits.
Only 1D arrays or dual arrays con? The method for the system used is best described for each instrument in the operating manual for that instrument. In most cases, the surface from which the straight beam is used needs no further examination using angle beams.
Summary of Practice 4.
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. Link to Active This link will always route to the current Active version of the standard. Welds shall be inspected from both sides, where possible. The preferred probe placement for the angle beam is on the surface where the e270 bevel opening occurs.
For 2D arrays, which use electronic oscillation, calibration should be performed at all skewed angles. This can be replaced with raster scanning where the stand-offs are continuously varied to the limits required using manual movement of the probes.
Set the signal from the reference re? Where scanning is to be performed along the top or across this weld, the weld reinforcement may be ground to provide a?
ASTM E Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
Typical couplants include water, oil, grease, glycerin, and cellulose gum. Current edition approved Aug. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. The distance forward and backward that the probe is moved is determined by the scan plan to ensure full volume coverage. Codes and code cases have been developed, or are being developed, to cover phased array weld inspection requirements by organizations such as ASME.
While some scan patterns emulate manual technology, other scans for example, S-scans are unique to phased arrays. For special applications, frequencies up to 20 MHz can be used, but may require special instrumentation with appropriate digitization, and special approval.
Probe placement will be de? Alternative welding techniques, such as solid state bonding for example, friction stir welding and fusion welding for example, electron beam welding can be inspected using this practice provided adequate coverage and techniques are documented and wstm.
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. The values given in parentheses are for information only.
A remote portable PC connected astj the instrument may also be used for this purpose. Commercial software permits the operator to easily make set ups without detailed knowledge of the phasing requirements.
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.
Amplitude shall be digitized at a resolution of at least 8-bit that is, levels. Data, in the form of A-scans from each focal law used, shall be collected at increments of not greater 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.
ASTM E2700 – 14
The test equipment, probe sfocal law scouplant, etc. This feature will be used only for assessment 7 of data quality as the scan is progressing and may allow for one or more channels to be monitored.
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. Range standardization shall include correction for wedge travel time so that the zero-depth position in the test piece is accurately indicated for each focal law. The practice is intended to be used on thicknesses of 9 to mm e2070.
ASTM E – 09 Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
Not all possible con? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. If the source of sensitivity change is a result of change in the number of active elements compared to the baseline assessment it may require probe replacement.
Astmm instruments do not inherently store A-scan data, such as some manual instruments, the? Examination procedures recommended for common weld con? For thickness less than 50 mm 2 in. Note 1—This practice is based on experience with ferrous and aluminum alloys.
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. In manual scanning, the dominant display will be an S-scan with associated A-scans.