33. Savetovanje sa međunarodnim učešćem Zavarivanje 2024, (p. S4.6)
AUTHOR(S) / АУТОР(И): Zoran Nikolić, Veljko Nikolić
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DOI: 10.46793/Zavarivanje24.S4.6N
ABSTRACT / САЖЕТАК:
Ultrazvučna tehnika koja u Evropi i svetu od nedavno nalazi sve veću primenu u ispitivanju materijala i zavarenih spojeva jeste FMC/TFM, poznatija kao tehnika totalnog fokusiranja. Razlozi za to su preciznost detektcije reflektora i unapređeni prikaz tih reflektora na ekranu uređaja. Na taj način se obezbeđuje ispitivaču komfornije ocenjivanje ispitane komponente a naručiocu ispitivanja vrlo detaljan i besprekoran izveštaj dajući na taj način adekvatan odgovor na sve složenije zahteve kvaliteta i ubrzan napredak industrije. U našoj zemlji i okruženju skoro da nema zabeleženih primera praktične primene ove tehnike. I ako ih ima, svode se na blic-prezentacije i reklame prekookeanskih kompanija koje posluju na našim prostorima uglavnom dok traju radovi na izgradnji pojedinih gasovoda i naftovoda. Standard EN ISO 17640 navodi znatna ograničenja kod primene ultrazvučne metode za ispitivanje zavarenih spojeva bez pune penetracije. U ovom radu prezentovana su iskustva iz prakse u primeni tehnike totalnog fokusiranja na ispitivanju zavarenih spojeva od legura aluminijuma 6005A-T6 i 5083 H111 kod karakterističnog konstrukcijskog rešenja spojeva bez pune penetracije ne narušavajući pri tom fizikalne principe na kojima je UT metoda zasnovana.
KEYWORDS / КЉУЧНЕ РЕЧИ:
Total Focusing Method, Full Matrix Capture, nepotpuna penetracija, legura aluminijuma, detekcija reflektora
REFERENCES / ЛИТЕРАТУРА:
[1] SRPS EN ISO 9712:2013 – Ispitivanje bez razaranja – Kvalifikacija i sertifikacija osoblja za IBR, ISS, Institut za Standardizaciju Srbije, Beograd
[2] ISO 23243:2020 – Non-destructive testing – Ultrasonic testing with arrays – Vocabulary, ISO, Vernier, Geneva, Switzerland.
[3] SRPS EN 755-2:2016 – Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 2: Mechanical properties, CEN, European Committee for Standardization, Brussels.
[4] EN 573-1:2004 – Aluminium and aluminium alloys – Chemical composition and form of wrought products – Part 1: Numerical designation system, CEN, European Committee for Standardization, Brussels.
[5] Prokić Cvetković, R., Popović, O., : Metalurgija zavarivanja, Mašinski fakultet Univerziteta u Beogradu, Beograd, 2019, str., 307-312.
[6] EN ISO 16810:2012 – Non-destructive testing – Ultrasonic testing – General principles, CEN, European Committee for Standardization, Brussels.
[7] ISO 23864:2021 – Non-destructive testing of welds – Ultrasonic testing – Use of automated total focusing technique (TFM) and related technologies, ISO, iiw, Vernier, Geneva, Switzerland.
[8] ISO 23865:2021 – Non-destructive testing – Ultrasonic testing – General use of full matrix capture / total focusing technique (FMC / TFM) and related technologies, ISO, iiw, Vernier, Geneva, Switzerland.
[9] ISO 18563-1:2022 – Non-destructive testing – Characterization and verification of ultrasonic phased array equipment – Part 1: Instruments, ISO, Vernier, Geneva, Switzerland.
[10] ISO 18563-2:2017 – Non-destructive testing – Characterization and verification of ultrasonic phased array equipment – Part 2: Probes, ISO, Vernier, Geneva, Switzerland.
[11] ISO 18563-3:2015 – Non-destructive testing – Characterization and verification of ultrasonic phased array equipment – Part 3: Combined system, CEN, European Committee for Standardization, Brussels.
[12] ISO 19285:2017 – Non-destructive testing of welds – Phased array ultrasonic testing (PAUT) – Acceptance levels, CEN, European Committee for Standardization, Brussels.
[13] EN 10160:1999 – Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method), CEN, European Committee for Standardization, Brussels.
[14] ISO 17640:2018 – Non-destructive testing of welds – Ultrasonic testing – Technique, testing levels, and assessment, ISO, Vernier, Geneva, Switzerland.
[15] EN ISO 17635:2016 – Non-destructive testing of welds – General rules for metallic materials, CEN, European Committee for Standardization, Brussels.