DIN EN () Founding – Ultrasonic examination – Part 2: Steel castings for highly stressed components. Hello. The scope of this standard is for highly stressed components. Where is the limit? When can I know if one material is higly stressed or not. Licens k?bt af: Vesta Wind System A/S Dansk standard DS/EN 1. udgave St?bning – Ultralydunders?gelse – Del 2.
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In this case, the casting to be tested shall have parallel surfaces, the distance between which shall be measured. Distance-amplitude correction curve technique DAC The distance-amplitude correction curve technique makes use of the echo-heights of a series of identical reflectors flat-bottomed holes FBH or side-drilled holes SDHeach reflector having a different sound-beam path.
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These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. Standards Subsctiption may be the perfect solution. NOTE Normal or angle probes can be used for the examination of steel castings for highly stressed components.
These indications shall not exceed the limits given in Table 1. Proceed to Checkout Continue Shopping. This standard is not included in any packages. This European Standard does not apply to austenitic steels and joint welds. This European Standard applies to the ultrasonic examination of steel castings which have usually received a grain refining heat treatment and which have wall thicknesses up to and including mm.
NOTE 2 Annex C gives information on types of indications and on the determination of their dimensions. Promoting, selling, recruiting, coursework and thesis posting is forbidden.
All echo indications from discontinuities with measurable dimensions shall be recorded, when the signal amplitude exceeds both the levels given in Table 3 126802 the criteria given in Figures 3 and 4.
BS EN 12680-2:2003
For wall thicknesses greater than mm, agreement shall be made between the parties concerned on the test procedure and also on the recording and acceptance levels. The characterization of the type of discontinuities can be improved by using additional sound directions and angles of incidence.
The maximum distance between discontinuities as criterion for evaluation as an individual indication in through-wall direction or lateral to the surface, shall be 20 mm. Annexes B and C are informative. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. This investigation can be achieved by altering the ultrasonic test technique e.
Your Alert Profile lists the documents that will be monitored. Students Click Here Join Us! Are you an Engineering professional? Some information is available as follows: The sizing of small planar discontinuities, as given in Figure 2, becomes more difficult with increasing beam-path length and sound-beam diameter. To identify the 1680-2 of indication, the test sensitivity can be changed according to the distance from the test surface, the geometrical shape and the surface finish of the test surface.
If the opposite surface is machined or complies at least to the limit comparator 4 S1 or 4 S2 according to ENthis surface has a quality which is sufficient for transfer correction measurements.
For an area with measurable length and non-measurable dimension in through-wall direction, this non-measurable dimension shall be taken as 3 mm and the area be calculated: ENNon-destructive testing — Characterization and verification of ultrasonic examination equipment — Part 3: Subscription pricing is determined by: Severity level 1 is only applied to weld preparations and special rim zones.
The area of indication with 12860-2 length but with non-measurable dimension in through-wall direction shall be calculated according to the formula given in Figure 2.
EN – NDT Ultrasonic examination. Founding – Material engineering other topics – Eng-Tips
The height of the echo indication is given as flat-bottomed or side-drilled hole diameter. Please first log in with a verified email before subscribing to alerts. The dimension in through-wall direction of the discontinuity should be measured according to Figure 5. During probe movement the sound paths change, but all indications remain without measurable dimensions.
Dimension of indication range equal to or larger than the sound-beam diameter DF. Complete coverage of all areas specified for examination shall be conducted by carrying out systematically overlapping scans. Indications from discontinuities frequently invisible. This assessment shall be carried out on selected casting areas which are representative of the surface finish and of the total thickness range. ENFounding — Surface roughness inspection by visualtactile comparators.
Founding Some information is available as follows: