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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Codes and code cases have been developed, or are being developed, to cover phased array weld inspection requirements by organizations such as ASME. For thickness adtm than 50 mm 2 in.
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. Practices for specific geometries such as spot welds are not included. 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.
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.
ASTM E2700-14 Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
BoxArlingate Ln. This target may be considered the primary reference re? S-scans have the advantage over E-scans that all the speci? S-scans have the advantage over E-scans that all the specified inspection angles can be covered at the same time. For thin sections, it may be possible to use a single stand-off position with either E-scans or S-scans.
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.
This can be replaced qstm raster scanning where the stand-offs are continuously varied to the limits required using manual movement of the probes.
ASTM E2700 – 14
For additional pertinent information, see Practices EEand E Note 1—This practice is based on experience with ferrous and aluminum alloys. Alternative scanning techniques shall be used for different weld pro? Phased array probes may be used with a removable or integral wedge, delay-line, or in an immersion or localized bubbler system mode. Additionally, there should also be training or knowledge and experience related 2e700 phased array equipment and techniques.
Therefore, it is necessary that the display used provide a uniform color code related to amplitude at all sound path distances. Not all possible con? Historical Version s – view previous versions of standard. The values given in parentheses are for information only. Inhibitors or wetting agents, or both, may be used. Volume coverage afforded by multiple stand-off positions astj probes are illustrated for encoded linear scans. E — 09 7. This technique is not generally considered to be as effective as the technique described in Fig.
Since acceptance criteria are not speci?
Welds shall be inspected from both sides, where possible. Typical couplants include water, oil, grease, glycerin, and cellulose gum.
satm This practice provides procedural guidance for both manual and mechanized scanning of welds using phased array systems. Generally using more focal laws requires more processing time so update rates of the B-scan or S-scan displays are slower as more focal laws are used.
ASTM E Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
Alternative welding techniques, such as e270 state bonding for example, friction e700 welding and fusion welding for example, electron beam welding can be inspected using this practice provided adequate coverage and techniques are documented and approved.
The practice or standard used and its applicable revision shall be identi? When glycerin is used, a small amount of wetting agent is often added, to improve the coupling properties.
With their distinct features and capabilities, phased arrays require special set-ups and standardization, as addressed by this wstm. The practice is intended to be used on thicknesses of 9 to mm 0.
Link to Active This link will always route to the current Active version of the standard. Examination from both sides of the web plate should be used when access permits.