The document appears to be a training manual or course material for visual inspection and non-destructive testing (NDT) of welds. It includes sections on visual inspection techniques and limitations, as well as descriptions and examples of different NDT methods including ultrasonic testing, magnetic particle inspection, dye penetrant inspection, and radiographic inspection. Information is provided on how to properly document and comment on NDT reports.
The document is a training manual on radiographic interpretation of welds. It contains multiple radiographic images of welds with defects labeled, asking the reader to identify the defects shown. The defects illustrated include lack of root penetration, porosity, undercutting, cracking, incomplete fusion, excess penetration, spatter, slag inclusions and others. The purpose is to help trainees learn to identify various weld defects from radiographic images.
The document provides guidance for welding inspectors taking the CSWIP 3.1 practical examination. It outlines the requirements for conducting visual inspections of plate and pipe test welds, including completing thumbprint sketches and final reports. Candidates must observe and report all imperfections, take accurate measurements, and compare their findings to code acceptance criteria. The document reviews welding imperfections, specialized gauges for measurements, and the reporting formats and evaluation standards required by the CSWIP exam.
Welding is a process that joins two metals or nonmetals by causing coalescence and with or without the addition of filler material. There are two main types of welding: pressure welding, which occurs under pressure with or without heat, and fusion welding, where the materials are joined in a molten state with an external heat source and sometimes filler. Common fusion welding methods include shielded metal arc welding, gas metal arc welding, and gas tungsten arc welding. Non-destructive testing methods like radiography, ultrasonic testing, and magnetic particle inspection are used to inspect welds for defects without damaging the material.
Evaluation of Porosity in Fusion Welded AA2014 Plates using X Ray Radiographyijtsrd
NDT has evolved as an essential demand in much modern engineering design in aircraft applications. The performance levels and reliability of the NDE is more important to the end use of the object being inspected. Failure is the primary threat to the integrity, safety and performance of aircraft structure. The aero grade material AA 2014 was taken for this project in the form of plate and welded by Tungsten Inert Gas welding TIG . The following NDT methods was done on this material Penetrant testing for to reveal surface defects, Ultrasonic testing to detect the subsurface and internal defects, X Ray Radiography for internal defects. Apart from conventional methods, remote crack inspection was carried using the Ultrasonic phased array. The results from methods were analysed. The acoustic emission test was conducted for the calibration of equipment for testing of AA 2014 material. Surface defects were detected by penetrant testing and internal defects like inclusions, blow holes, porosity and lack of penetration were detected by both Radiography testing and Ultrasonic tests. Very fine porosity was detected by ultrasonic phased array method, which could not be detected by Radiography testing and Ultrasonic testing. Mr. N. Nagendra Kumar | R. Akshay | P. Durga Kishore | V. Sai Kiran ""Evaluation of Porosity in Fusion Welded AA2014 Plates using X-Ray Radiography"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23186.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23186/evaluation-of-porosity-in-fusion-welded-aa2014-plates-using-x-ray-radiography/mr-n-nagendra-kumar
This document provides an introduction to using lasers in non-destructive testing (NDT). It discusses three main laser testing methods: holography, shearography, and profilometry. Holography uses high-frequency vibration to identify irregular structures or disbonds. Shearography utilizes interferometry to identify out-of-plane deformation from subsurface flaws. Laser profilometry is preferred for cylindrical products like pipelines to assess corrosion. The document also covers ultrasonic flaw detection, describing how high-frequency sound waves can detect subsurface discontinuities using transmission and pulse-echo methods. Ultrasonic testing is widely used due to its safety, penetration, and ability to inspect thick sections.
Experimental Validation on ASTM A516 Grade 70 Carbon Steel by Non-Destructive...IJMTST Journal
Welding is one type of erection process. It is process of joining by applying heat energy and molten metal
used extensively in automobile industries, aircraft machine frames structural work ship building and various
other fields. Physical properties of welds are affected by several factors. To produce satisfactory welds which
fulfil the requirement of quality the integrity of quality control is important. To understand the various defects,
their causes and remedies can help to improve higher quality and longer lasting welds. This report contains
major information of surface irregularities and weld discontinuities.
Non-destructive testing is the process conducting examination on any component (welds, casting bars,
automobile etc.) without affecting its usefulness of component to detect discontinuities in component and
physical properties of component. There are more than sixteen methods of NDT in metals, in this the most
important onesVisual, Ultrasonic, radiography, magnetic particle testing and penetrant testing are discussed
in detail. The experimental outputs are discussed and comparisons are made based on the cost, accuracy,
safety, time consumption, etc. Based on these considerations conclusions and recommendations are made
The document discusses various advanced non-destructive testing methods. It defines non-destructive testing and lists common NDT methods. It then describes several advanced NDT methods in more detail, including automated ultrasonic testing, phased array ultrasonics testing, time of flight diffraction, magnetic flux leakage testing, alternative current field measurement, and acoustic pulse reflectometry. The advanced methods provide more accurate inspections with improved detection capabilities compared to conventional NDT techniques.
Nondestructive testing (NDT) allows inspection or measurement of materials without causing damage. Common NDT methods include visual testing, liquid penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography. These methods are used to detect inherent, processing, and service defects in raw materials and components, as well as to inspect for in-service damage in applications like aircraft engines, rails, and bridges in order to ensure safety and prevent failures.
The document is a training manual on radiographic interpretation of welds. It contains multiple radiographic images of welds with defects labeled, asking the reader to identify the defects shown. The defects illustrated include lack of root penetration, porosity, undercutting, cracking, incomplete fusion, excess penetration, spatter, slag inclusions and others. The purpose is to help trainees learn to identify various weld defects from radiographic images.
The document provides guidance for welding inspectors taking the CSWIP 3.1 practical examination. It outlines the requirements for conducting visual inspections of plate and pipe test welds, including completing thumbprint sketches and final reports. Candidates must observe and report all imperfections, take accurate measurements, and compare their findings to code acceptance criteria. The document reviews welding imperfections, specialized gauges for measurements, and the reporting formats and evaluation standards required by the CSWIP exam.
Welding is a process that joins two metals or nonmetals by causing coalescence and with or without the addition of filler material. There are two main types of welding: pressure welding, which occurs under pressure with or without heat, and fusion welding, where the materials are joined in a molten state with an external heat source and sometimes filler. Common fusion welding methods include shielded metal arc welding, gas metal arc welding, and gas tungsten arc welding. Non-destructive testing methods like radiography, ultrasonic testing, and magnetic particle inspection are used to inspect welds for defects without damaging the material.
Evaluation of Porosity in Fusion Welded AA2014 Plates using X Ray Radiographyijtsrd
NDT has evolved as an essential demand in much modern engineering design in aircraft applications. The performance levels and reliability of the NDE is more important to the end use of the object being inspected. Failure is the primary threat to the integrity, safety and performance of aircraft structure. The aero grade material AA 2014 was taken for this project in the form of plate and welded by Tungsten Inert Gas welding TIG . The following NDT methods was done on this material Penetrant testing for to reveal surface defects, Ultrasonic testing to detect the subsurface and internal defects, X Ray Radiography for internal defects. Apart from conventional methods, remote crack inspection was carried using the Ultrasonic phased array. The results from methods were analysed. The acoustic emission test was conducted for the calibration of equipment for testing of AA 2014 material. Surface defects were detected by penetrant testing and internal defects like inclusions, blow holes, porosity and lack of penetration were detected by both Radiography testing and Ultrasonic tests. Very fine porosity was detected by ultrasonic phased array method, which could not be detected by Radiography testing and Ultrasonic testing. Mr. N. Nagendra Kumar | R. Akshay | P. Durga Kishore | V. Sai Kiran ""Evaluation of Porosity in Fusion Welded AA2014 Plates using X-Ray Radiography"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23186.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23186/evaluation-of-porosity-in-fusion-welded-aa2014-plates-using-x-ray-radiography/mr-n-nagendra-kumar
This document provides an introduction to using lasers in non-destructive testing (NDT). It discusses three main laser testing methods: holography, shearography, and profilometry. Holography uses high-frequency vibration to identify irregular structures or disbonds. Shearography utilizes interferometry to identify out-of-plane deformation from subsurface flaws. Laser profilometry is preferred for cylindrical products like pipelines to assess corrosion. The document also covers ultrasonic flaw detection, describing how high-frequency sound waves can detect subsurface discontinuities using transmission and pulse-echo methods. Ultrasonic testing is widely used due to its safety, penetration, and ability to inspect thick sections.
Experimental Validation on ASTM A516 Grade 70 Carbon Steel by Non-Destructive...IJMTST Journal
Welding is one type of erection process. It is process of joining by applying heat energy and molten metal
used extensively in automobile industries, aircraft machine frames structural work ship building and various
other fields. Physical properties of welds are affected by several factors. To produce satisfactory welds which
fulfil the requirement of quality the integrity of quality control is important. To understand the various defects,
their causes and remedies can help to improve higher quality and longer lasting welds. This report contains
major information of surface irregularities and weld discontinuities.
Non-destructive testing is the process conducting examination on any component (welds, casting bars,
automobile etc.) without affecting its usefulness of component to detect discontinuities in component and
physical properties of component. There are more than sixteen methods of NDT in metals, in this the most
important onesVisual, Ultrasonic, radiography, magnetic particle testing and penetrant testing are discussed
in detail. The experimental outputs are discussed and comparisons are made based on the cost, accuracy,
safety, time consumption, etc. Based on these considerations conclusions and recommendations are made
The document discusses various advanced non-destructive testing methods. It defines non-destructive testing and lists common NDT methods. It then describes several advanced NDT methods in more detail, including automated ultrasonic testing, phased array ultrasonics testing, time of flight diffraction, magnetic flux leakage testing, alternative current field measurement, and acoustic pulse reflectometry. The advanced methods provide more accurate inspections with improved detection capabilities compared to conventional NDT techniques.
Nondestructive testing (NDT) allows inspection or measurement of materials without causing damage. Common NDT methods include visual testing, liquid penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography. These methods are used to detect inherent, processing, and service defects in raw materials and components, as well as to inspect for in-service damage in applications like aircraft engines, rails, and bridges in order to ensure safety and prevent failures.
Inspection and Testing Methods in Casting.IRJET Journal
This document discusses non-destructive testing (NDT) of aluminum alloy castings produced using stir casting. Specifically, it examines using radiography NDT techniques to identify internal defects in aluminum alloy specimens that were heat treated at 450°C and 600°C and compressed using hydraulic pressing before inspection. After NDT inspection, most defects were identified. Scanning electron microscope photos were also taken of the compressed casting specimens to examine structural changes and increased hardness and bond strength from the hot forming process. The NDT inspected values were then compared to the SEM microstructure analysis results.
Quality control involves measuring quality characteristics of products and comparing them to standards to identify any deviations. Quality assurance provides confidence that quality achieved meets standards. Key quality documents include the quality assurance plan (QAP), welding procedure specification (WPS), and erection welding schedule (EWS). The QAP outlines inspection stages while the WPS defines welding parameters and the EWS details welding and non-destructive testing requirements. Non-destructive testing methods like radiography, ultrasonic testing, liquid penetrant testing, and magnetic particle inspection are used to identify flaws without damaging materials. Proper preheating, post heating, and post weld heat treatment are important to reduce welding defects and residual stresses.
Weld Defects and Material Properties - PaperBrett Leary
This document summarizes research on common weld defects including inclusions, cracks, and incomplete fusion/penetration. It discusses the causes, effects, prevention methods, and detection techniques for each type of defect. Key points include: porosity and slag are common inclusion defects caused by contamination; cracks are caused by residual stresses from welding and can reduce fatigue strength; and incomplete fusion/penetration occur when the weld does not fully melt and fuse the materials together. Prevention focuses on cleanliness while detection examines welds for discontinuities using methods like radiography and ultrasonics. Understanding weld defects helps engineers design safer and more reliable welded structures.
This document provides a classification and overview of common welding defects. It divides defects into three main categories: planar defects, linear volumetric defects, and non-planar defects. Examples of each type of defect are given. The document also describes specific defect types such as cracks, inclusions, lack of fusion, porosity, overlap, undercut and provides potential causes of each.
Neste Webinar apresentaremos as principais soluções em Timming devices (Ressonadores e Cristas) Murata, suas tecnologias, materiais utilizados, aplicações, como identificar possíveis falhas e como utilizar ferramenta de seleção da Murata Simsurfing.
Tópicos do Webinar
Tecnologia Timing Devices
Ressonadores e Cristais
Vantagens dos Ressonadores Murata
Vantagens dos Cristais Murata
Como identificar possíveis falhas nos Ressonadores e Cristais.
Matching - como identificar melhor Cristal de acordo com microprocessador.
Ferramenta Murata Simsurfing
Aplicações
Feasibility Study for In-Process Monitoring of Gas Tungsten Arc WeldingIJERD Editor
Different methods can be adopted for monitoring the quality and prediction of process stability for Gas Tungsten Arc Welding. The acoustic emissions generated during welding of V groove weld for SS304 material can be utilized to assess the behaviour of weld produced and analyze using softwares. For evaluation of influences of sound generation, extensive experiments have to be performed and a comparative study can be carried out.
Guided Wave Ultrasound - Principles and Apllicationssubash_j
This presentation provides a general background on the principles and theory of guided wave ultrasound and its application to inspection of a wide range of structures and materials
Nest Institute of NDT posse’s high quality international standard training for NDT in accordance with quality management system and pursuing placement for candidates to improve their career.
To give quality training and education along with placement for the youngsters to enrich their career (or) to make their life delightful.Courses: VISUAL TESTING, LIQUID PENETRANT TESTING, MAGNETIC PARTICLE TESTING, RADIOGRAPHY TESTING, ULTRASONIC TESTING,More Information Visit Our Website nestndt.com
Nest is a leading training institute that provides both theoretical and practical training to candidates seeking ASNT level II certification in non-destructive testing. It offers 100% placement assistance and trains candidates using advanced audio-visual tools to enrich their knowledge. Candidates receive globally recognized certificates upon completion and have opportunities for onsite training in industries. The institute aims to provide high quality international standard training and help improve candidates' careers through education and placement assistance.
Visual testing ,Liquid penetrant testing ,Magnetic particle testing,Radiograp...Nestndt Chennai
Nest Institute of NDT provides Visual Testing training methodologies to detect the following discontinuities Surface deposits, Scaling, Corrosion, Discoloration, Oxidation bulging, Missing parts, Mechanical damage, Dimensional conformance, like Distortion of components during fabrication & in services and general corrosion on the surface of a component If you have any queries regarding training methodologies, feel free to contact @ 9962003355 Email: info@nestndt.com.Web: www.nestndt.com
Nest is a leading training institute that provides both theoretical and practical training to candidates seeking ASNT level II certification in non-destructive testing. It offers 100% placement assistance and trains candidates using advanced audio-visual tools to enrich their knowledge. Candidates receive globally recognized certificates upon completion and have opportunities for onsite training in industries. The institute aims to provide high quality international standard training and help improve candidates' careers through education and placement assistance.
Nest is a leading training institute that provides both theoretical and practical training in ASNT level II NDT techniques like ultrasonic testing. It aims to give candidates globally recognized certification and 100% placement assistance. Trainers have over 10 years of industry experience and candidates will receive on-site training in industries. The document discusses various NDT techniques like visual testing, liquid penetrant testing, magnetic particle testing, radiographic testing, and ultrasonic testing; outlining their applications, advantages, limitations, and types of defects detected.
This document introduces various pipeline inspection methods used by Taiwan Metal Quality Control Co. Ltd (TMQC), including long-range guided wave ultrasonic testing (LRUT), medium-range guided wave ultrasonic testing (MRUT), and phased array UT (PAUT). LRUT can rapidly screen for corrosion locations qualitatively, while MRUT can provide quantitative inspection of wall loss percentages. PAUT allows for corrosion mapping, crack detection, and weld inspection. TMQC utilizes these non-destructive testing methods to inspect pipelines for corrosion and defects.
L35 phased array ultrasound & time of flight diffractionkarthi keyan
This document discusses ultrasonic testing (UT) and acoustic emission (AE) techniques. It provides details on phased array ultrasound and time of flight diffraction UT methods. Phased array UT uses multiple independently controlled transducer elements to inspect complex geometries quickly and repeatably. Time of flight diffraction UT uses two probes on opposite sides of a weld to detect flaws by measuring the diffraction of ultrasound pulses off crack tips. The document also lists advantages and applications of these advanced UT methods for nondestructive testing in various industries. It presents multiple choice questions related to UT probe materials, high temperature UT, and acoustic impedance definitions.
Non-destructive testing (NDT) refers to techniques used to evaluate the properties of a material, component, or structure without damaging it. The document discusses several common NDT methods, including visual testing, dye penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography testing. It provides details on the basic principles, processes, advantages, and limitations of these important NDT techniques.
Final strip and sheet steel product is commonly inspected with great scrutiny to qualify material for high-end product requirements. Surface flaws such as slivers, cracks, laps, etc., disqualify these materials from being used in automotive and big box applications. Internal defects such as voids, cracks, laminations, porosity and segregation may remain undetectable with surface inspection methods as they have not yet manifested at the surface. These internal defects often propagate to the surface where ultimately they are detectable in the finished product stage in the form of slivers, blisters, etc., although remaining undetectable in the steel making, hot-rolling, pickling, cold rolling and subsequent finishing operations. Surface flaws are a key cause of down grading of finished product and a significant cost to the steel maker as all value added operations are complete before detection and down grading are possible.
In today’s competitive environment, it is key to maximize utilization of mill assets and to avoid adding value to material which can be known early in the manufacturing process to contain deleterious defects. Using proven methods of volumetric material inspection in two separate case studies, methods have been developed to allow the steel maker to identify poor material early in the process thus avoiding the value added processes on these materials and only processing materials which with a probability of final inspection passage.
This document discusses three common non-destructive testing methods: radiography testing, ultrasonic testing, and liquid penetrant testing. It provides an overview of the principles, advantages, limitations, and applications of each method. Radiography testing uses x-rays or gamma rays to detect flaws by observing variations in radiation absorption. Ultrasonic testing uses high frequency sound waves that reflect off discontinuities. Liquid penetrant testing uses a fluid that seeps into surface-breaking flaws, which are then revealed using a developer. The document also lists traditional and advanced non-destructive testing methods and provides details on interpreting radiography and ultrasonic testing results.
Visual examination is the most commonly used non-destructive testing method for inspecting welds. It involves directly or indirectly observing the exposed surfaces of welds and base metals. Proper lighting of at least 1000 Lux is needed. Various aids like mirrors, telescopes and cameras can be used. Key factors in visual inspection are the condition of the inspector's eyes, their understanding of the inspection situation, and being objective. The document discusses visual inspection guidelines and acceptance standards from codes like ASME and AWS, as well as common weld defects.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Inspection and Testing Methods in Casting.IRJET Journal
This document discusses non-destructive testing (NDT) of aluminum alloy castings produced using stir casting. Specifically, it examines using radiography NDT techniques to identify internal defects in aluminum alloy specimens that were heat treated at 450°C and 600°C and compressed using hydraulic pressing before inspection. After NDT inspection, most defects were identified. Scanning electron microscope photos were also taken of the compressed casting specimens to examine structural changes and increased hardness and bond strength from the hot forming process. The NDT inspected values were then compared to the SEM microstructure analysis results.
Quality control involves measuring quality characteristics of products and comparing them to standards to identify any deviations. Quality assurance provides confidence that quality achieved meets standards. Key quality documents include the quality assurance plan (QAP), welding procedure specification (WPS), and erection welding schedule (EWS). The QAP outlines inspection stages while the WPS defines welding parameters and the EWS details welding and non-destructive testing requirements. Non-destructive testing methods like radiography, ultrasonic testing, liquid penetrant testing, and magnetic particle inspection are used to identify flaws without damaging materials. Proper preheating, post heating, and post weld heat treatment are important to reduce welding defects and residual stresses.
Weld Defects and Material Properties - PaperBrett Leary
This document summarizes research on common weld defects including inclusions, cracks, and incomplete fusion/penetration. It discusses the causes, effects, prevention methods, and detection techniques for each type of defect. Key points include: porosity and slag are common inclusion defects caused by contamination; cracks are caused by residual stresses from welding and can reduce fatigue strength; and incomplete fusion/penetration occur when the weld does not fully melt and fuse the materials together. Prevention focuses on cleanliness while detection examines welds for discontinuities using methods like radiography and ultrasonics. Understanding weld defects helps engineers design safer and more reliable welded structures.
This document provides a classification and overview of common welding defects. It divides defects into three main categories: planar defects, linear volumetric defects, and non-planar defects. Examples of each type of defect are given. The document also describes specific defect types such as cracks, inclusions, lack of fusion, porosity, overlap, undercut and provides potential causes of each.
Neste Webinar apresentaremos as principais soluções em Timming devices (Ressonadores e Cristas) Murata, suas tecnologias, materiais utilizados, aplicações, como identificar possíveis falhas e como utilizar ferramenta de seleção da Murata Simsurfing.
Tópicos do Webinar
Tecnologia Timing Devices
Ressonadores e Cristais
Vantagens dos Ressonadores Murata
Vantagens dos Cristais Murata
Como identificar possíveis falhas nos Ressonadores e Cristais.
Matching - como identificar melhor Cristal de acordo com microprocessador.
Ferramenta Murata Simsurfing
Aplicações
Feasibility Study for In-Process Monitoring of Gas Tungsten Arc WeldingIJERD Editor
Different methods can be adopted for monitoring the quality and prediction of process stability for Gas Tungsten Arc Welding. The acoustic emissions generated during welding of V groove weld for SS304 material can be utilized to assess the behaviour of weld produced and analyze using softwares. For evaluation of influences of sound generation, extensive experiments have to be performed and a comparative study can be carried out.
Guided Wave Ultrasound - Principles and Apllicationssubash_j
This presentation provides a general background on the principles and theory of guided wave ultrasound and its application to inspection of a wide range of structures and materials
Nest Institute of NDT posse’s high quality international standard training for NDT in accordance with quality management system and pursuing placement for candidates to improve their career.
To give quality training and education along with placement for the youngsters to enrich their career (or) to make their life delightful.Courses: VISUAL TESTING, LIQUID PENETRANT TESTING, MAGNETIC PARTICLE TESTING, RADIOGRAPHY TESTING, ULTRASONIC TESTING,More Information Visit Our Website nestndt.com
Nest is a leading training institute that provides both theoretical and practical training to candidates seeking ASNT level II certification in non-destructive testing. It offers 100% placement assistance and trains candidates using advanced audio-visual tools to enrich their knowledge. Candidates receive globally recognized certificates upon completion and have opportunities for onsite training in industries. The institute aims to provide high quality international standard training and help improve candidates' careers through education and placement assistance.
Visual testing ,Liquid penetrant testing ,Magnetic particle testing,Radiograp...Nestndt Chennai
Nest Institute of NDT provides Visual Testing training methodologies to detect the following discontinuities Surface deposits, Scaling, Corrosion, Discoloration, Oxidation bulging, Missing parts, Mechanical damage, Dimensional conformance, like Distortion of components during fabrication & in services and general corrosion on the surface of a component If you have any queries regarding training methodologies, feel free to contact @ 9962003355 Email: info@nestndt.com.Web: www.nestndt.com
Nest is a leading training institute that provides both theoretical and practical training to candidates seeking ASNT level II certification in non-destructive testing. It offers 100% placement assistance and trains candidates using advanced audio-visual tools to enrich their knowledge. Candidates receive globally recognized certificates upon completion and have opportunities for onsite training in industries. The institute aims to provide high quality international standard training and help improve candidates' careers through education and placement assistance.
Nest is a leading training institute that provides both theoretical and practical training in ASNT level II NDT techniques like ultrasonic testing. It aims to give candidates globally recognized certification and 100% placement assistance. Trainers have over 10 years of industry experience and candidates will receive on-site training in industries. The document discusses various NDT techniques like visual testing, liquid penetrant testing, magnetic particle testing, radiographic testing, and ultrasonic testing; outlining their applications, advantages, limitations, and types of defects detected.
This document introduces various pipeline inspection methods used by Taiwan Metal Quality Control Co. Ltd (TMQC), including long-range guided wave ultrasonic testing (LRUT), medium-range guided wave ultrasonic testing (MRUT), and phased array UT (PAUT). LRUT can rapidly screen for corrosion locations qualitatively, while MRUT can provide quantitative inspection of wall loss percentages. PAUT allows for corrosion mapping, crack detection, and weld inspection. TMQC utilizes these non-destructive testing methods to inspect pipelines for corrosion and defects.
L35 phased array ultrasound & time of flight diffractionkarthi keyan
This document discusses ultrasonic testing (UT) and acoustic emission (AE) techniques. It provides details on phased array ultrasound and time of flight diffraction UT methods. Phased array UT uses multiple independently controlled transducer elements to inspect complex geometries quickly and repeatably. Time of flight diffraction UT uses two probes on opposite sides of a weld to detect flaws by measuring the diffraction of ultrasound pulses off crack tips. The document also lists advantages and applications of these advanced UT methods for nondestructive testing in various industries. It presents multiple choice questions related to UT probe materials, high temperature UT, and acoustic impedance definitions.
Non-destructive testing (NDT) refers to techniques used to evaluate the properties of a material, component, or structure without damaging it. The document discusses several common NDT methods, including visual testing, dye penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography testing. It provides details on the basic principles, processes, advantages, and limitations of these important NDT techniques.
Final strip and sheet steel product is commonly inspected with great scrutiny to qualify material for high-end product requirements. Surface flaws such as slivers, cracks, laps, etc., disqualify these materials from being used in automotive and big box applications. Internal defects such as voids, cracks, laminations, porosity and segregation may remain undetectable with surface inspection methods as they have not yet manifested at the surface. These internal defects often propagate to the surface where ultimately they are detectable in the finished product stage in the form of slivers, blisters, etc., although remaining undetectable in the steel making, hot-rolling, pickling, cold rolling and subsequent finishing operations. Surface flaws are a key cause of down grading of finished product and a significant cost to the steel maker as all value added operations are complete before detection and down grading are possible.
In today’s competitive environment, it is key to maximize utilization of mill assets and to avoid adding value to material which can be known early in the manufacturing process to contain deleterious defects. Using proven methods of volumetric material inspection in two separate case studies, methods have been developed to allow the steel maker to identify poor material early in the process thus avoiding the value added processes on these materials and only processing materials which with a probability of final inspection passage.
This document discusses three common non-destructive testing methods: radiography testing, ultrasonic testing, and liquid penetrant testing. It provides an overview of the principles, advantages, limitations, and applications of each method. Radiography testing uses x-rays or gamma rays to detect flaws by observing variations in radiation absorption. Ultrasonic testing uses high frequency sound waves that reflect off discontinuities. Liquid penetrant testing uses a fluid that seeps into surface-breaking flaws, which are then revealed using a developer. The document also lists traditional and advanced non-destructive testing methods and provides details on interpreting radiography and ultrasonic testing results.
Visual examination is the most commonly used non-destructive testing method for inspecting welds. It involves directly or indirectly observing the exposed surfaces of welds and base metals. Proper lighting of at least 1000 Lux is needed. Various aids like mirrors, telescopes and cameras can be used. Key factors in visual inspection are the condition of the inspector's eyes, their understanding of the inspection situation, and being objective. The document discusses visual inspection guidelines and acceptance standards from codes like ASME and AWS, as well as common weld defects.
Similar to 445176106-NDT-Visual-Inspection-ppt.ppt (20)
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.