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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Apply the correction to all focal laws used for the examination. Consideration must be given to these re? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Link to Active This link will always route to the current Active version of asm standard. Alternative welding techniques, such as solid state bonding for example, friction stir welding and fusion welding for example, electron beam w2700 can be inspected using this practice provided adequate coverage and techniques are documented and approved.
The couplant should wet the surfaces of the search unit and the test piece, and eliminate any air space between the two. Other metallic materials can be examined using this practice provided reference standards can be developed that demonstrate aztm the particular material and weld can be successfully penetrated by an ultrasonic beam.
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.
Practice E covers setting up of phased arrays for weld inspections. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
ASTM E2700 – 14
For 2D arrays, which use electronic oscillation, calibration should be performed at all skewed angles. Typical couplants include water, oil, grease, glycerin, and cellulose gum. This practice is based on experience with ferrous and aluminum alloys.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. When water is used, it should be clean and de-aerated if possible. Volume coverage xstm by multiple stand-off positions of probes are illustrated for encoded linear scans. The values given in parentheses are for information only. 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. Alternative scanning techniques shall be used for different weld pro? Scanning speed speed at which the probe is manually moved forward asstm backward will be limited by the 2e700 update capabilities. The values given in parentheses are mathematical conversions to SI units that are provided for information only sstm are not considered standard. The method for the system used is best described for each instrument in the operating manual for that instrument.
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.
ASTM E Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
Additionally, there should also be training or knowledge and experience related to phased array equipment and techniques. This astn is suitable for large planar? Amplitude shall be digitized at a resolution of at least 8-bit that is, levels. Sensitivity amplitude reference standards that accomplish this are sidedrilled holes parallel to the major surfaces of the plate and perpendicular to the sound path,?
Astk or wetting agents, or both, may be used. This may include the following information: Welds shall be inspected from both sides, where possible. Note that this interval should be reduced when length sizing of? The applicable edition of Practice E shall be speci?
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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.
If instruments do not inherently store A-scan data, such as some manual instruments, the? For improved sizing capabilities techniques described in Guide E may be more suitable and can be adapted to phased array applications. NOTE—Butt welds should be examined from both sides of the weld and preferably from the bevel opening side when access permits.
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. For certain combinations of thin wall and small diameter pipe side drilled holes may not be practical and surface notches may be used with agreement between contracting parties.
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. 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. This target may be considered the primary reference re?
NOTE 1—This practice is based on experience with ferrous and aluminum alloys. For thickness less than qstm mm 2 in. Set the signal from the reference re?
Examination procedures recommended for common weld con? Basis of Application 6. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
S-scans have the advantage over E-scans that all the speci?
ASTM E2700-14 Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
An external storage device,? In most cases, the surface from which the straight beam aztm used needs no further examination using angle beams. Codes and code cases have been developed, or are being developed, to cover phased array weld inspection requirements by organizations such as ASME. A general standard practice document is required to de?
Examination from both sides of the web plate should be used when access permits. This method can be used only if the instrument is provided with electronic distance amplitude compensation circuitry TCG.