SIMULATION OF DEFECTS IN ULTRASONIC TESTING OF WELDED JOINTS

2020 ◽  
Vol 13 (1) ◽  
pp. 4-9
Author(s):  
Evgeniy Andreev ◽  
S. Nikolenko ◽  
Svetlana Sazonova
Keyword(s):  
Quality Control ◽  
Welded Joints ◽  
Ultrasonic Testing ◽  
Phased Array ◽  
Electronic Media ◽  
Considerable Time

The paper analyzes and develops proposals for optimizing the quality control of welded joints of technological pipelines using mechanized ultrasonic testing using the phased array method. The main advantage of the proposed method, in addition to identifying all existing defects, is the storage of information about scanning for a considerable time on electronic media, which makes it possible to use it in cases where a controversial situation arises, when an incident occurs, or if an accident occurs.

Features of ultrasonic control of butt welded joints of polyethylene pipes

2020 ◽  
pp. 46-52
Author(s):  
N.P. Aleshin ◽  
D.M. Kozlov ◽  
L.YU. Mogilner
Keyword(s):  
Quality Control ◽  
Welded Joints ◽  
Ultrasonic Testing ◽  
Ultrasonic Inspection ◽  
Mechanical Tests ◽  
Ultrasonic Control ◽  
Lack Of Fusion ◽  
Polyethylene Pipes ◽  
End To End

The reliability of ultrasonic testing (UT) of the quality of welded joints of polyethylene pipelines, made end-to-end with a heated tool, is considered in comparison with mechanical tests and radiography. The greatest detection of solid defects is provided by ultrasonic inspection with the use of chord tipe probes (not less than 90 %). When detecting defects translucent for ultrasound (lack of penetration, lack of fusion, etc.), the reliability decreases to 70÷80 %. Keywords: welding, polyethylene pipeline, quality control, ultrasonic testing, chord tipe probe. [email protected]

A test of phased array ultrasonic testing of aluminium alloy friction stir welded joints

2008 ◽  
Vol 22 (8) ◽  
pp. 511-517 ◽  
Author(s):  
N. Oiwa ◽  
K. Kida ◽  
T. Iwaki ◽  
T. Okada ◽  
T. Ishikawa ◽  
...  
Keyword(s):  
Aluminium Alloy ◽  
Welded Joints ◽  
Ultrasonic Testing ◽  
Phased Array ◽  
Friction Stir

Experience in Ultrasonic Testing of Austenitic Welded Joints Using SAFT Technique and Phased Array Technique

NDT World ◽  
2017 ◽  
pp. 50-54
Author(s):  
Андерсон ◽  
Edward Anderson ◽  
Кочергин ◽  
Dmitry Kochergin ◽  
Садкин ◽  
...  
Keyword(s):  
Welded Joints ◽  
Ultrasonic Testing ◽  
Phased Array

Application of Visual Beam Ultrasonic Phased Array in Inspection of Weld in Tubular Node

2015 ◽  
Author(s):  
Shaojun Wang ◽  
Xiaoying Tang ◽  
Houde Yu ◽  
Yaozhou Qian ◽  
Jun Cheng ◽  
...  
Keyword(s):  
Welded Joints ◽  
Phased Array ◽  
Sound Beam ◽  
Ultrasonic Sound ◽  
Array Technology ◽  
Coverage Model ◽  
Ultrasonic Phased Array ◽  
Arbitrary Section ◽  
Tubular Joint ◽  
Low Efficiency

Responding to complexity and particularity welding on the geometry of TKY tubular node, this paper constructs mathematical model of tubular joint weld of arbitrary section by simplifying the geometry structure, and draws welded joints and ultrasonic sound beam lines based on the actual specifications in order to solve the problems of low efficiency, positioning difficulty, missing inspection and etc. The computeraided simulation technology can realize the visualization in the beam coverage model of welded joints, which can commendably guide the design of ultrasonic phased array inspection and overcome the blindness of the instrument detection parameters, thus improving the effectiveness and pertinence of the actual detection. Study shows that it is beneficial to enhance the effectiveness of the detection tubular joint weld by employment of Visual beam and ultrasonic phased array technology.

scholarly journals Design Considerations for the Use of Ultrasonic Phased Array Probes in Weld Inspection

2000 ◽  
Author(s):  
Paul A. Meyer
Keyword(s):  
Ultrasonic Testing ◽  
Phased Array ◽  
Design Considerations ◽  
Array Probe ◽  
Ultrasonic Phased Array ◽  
Weld Inspection ◽  
Service Inspection

Ultrasonic testing of metal welds has been in use for many years. Scanning methods using both contact and immersion methods are often used at the time of manufacture and also during periodic in-service inspection programs. But because of a variety of component configurations and potential flaw geometries it is often necessary to perform several inspections, each with a different probe configuration to assure adequate defect delegability. It is possible that a properly designed phased array probe can perform several different inspections without changing hardware thereby reducing inspection times. This presentation reviews the design and operation of ultrasonic phased array transducers and the necessary features to achieve the desired performance. Situations in which these probes have already been implemented effectively are also discussed.

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