The document discusses liquid penetrant testing (LPT) and magnetic particle testing (MPT) as two surface non-destructive testing methods. It describes the basic principles, testing procedures, equipment, and applications of LPT and MPT. For LPT, it explains how penetrants are drawn into surface flaws using capillary action and developers are used to reveal the flaws. For MPT, it outlines how magnetizing a material causes magnetic particles to accumulate at flaws, making them visible. Both are effective for detecting surface-breaking defects in many materials.
Liquid Penetrant Testing - Principles, types and properties of liquid penetrants, developers, advantages and limitations of various methods, Testing Procedure, Interpretation of results. Magnetic Particle Testing- Theory of magnetism, inspection materials Magnetisation methods, Interpretation and evaluation of test indications, Principles and methods of demagnetization, Residual magnetism
NDT Versus Mechanical testing, Overview of the Non Destructive Testing Methods for the detection of manufacturing defects as well as material characterisation. Relative merits and limitations, Various physical characteristics of materials and their applications in NDT., Visual inspection – Unaided and aided
Liquid Penetrant Testing - Principles, types and properties of liquid penetrants, developers, advantages and limitations of various methods, Testing Procedure, Interpretation of results. Magnetic Particle Testing- Theory of magnetism, inspection materials Magnetisation methods, Interpretation and evaluation of test indications, Principles and methods of demagnetization, Residual magnetism
NDT Versus Mechanical testing, Overview of the Non Destructive Testing Methods for the detection of manufacturing defects as well as material characterisation. Relative merits and limitations, Various physical characteristics of materials and their applications in NDT., Visual inspection – Unaided and aided
Introduction to NDT and Visual Inspection Hareesh K
This presentation will gives you basic idea about Non destructive testing and brief detail about Visual Inspection Technique.This topic is included in UG level Mechanical Engineering Syllabus by all top Indian Universities
This presentation Based on Non Destructive Testing.the Abbreviation is NDT.Dye penetrant Testing (DPT) is the part of NDT .I think my presentation will be helpful for NDT Related person
Liquid penetrant inspection is one of the oldest and most widely used non destructive testing methods. It is also called as dye penetrant inspection.Penetrant testing can be applied to most of materials including metallic and non metallic objects.This Presentation will gives you an overview about Liquid Penetrant Testing and Various methods used for Inspection
This presentation contain discription about Fine finishing process of complex shape material which cannot be finished by normal processess. three type of finishing process has been described they are Abrasive flow machining, MAgnetic Abrasive Finishing, Magneto Rheological abrasive finishing.
Introduction to Non Destructive Testing. Various Advantages, and also covers the 6 principal methods of Non Destructive Testing and their applications and limitations.
Introduction to NDT and Visual Inspection Hareesh K
This presentation will gives you basic idea about Non destructive testing and brief detail about Visual Inspection Technique.This topic is included in UG level Mechanical Engineering Syllabus by all top Indian Universities
This presentation Based on Non Destructive Testing.the Abbreviation is NDT.Dye penetrant Testing (DPT) is the part of NDT .I think my presentation will be helpful for NDT Related person
Liquid penetrant inspection is one of the oldest and most widely used non destructive testing methods. It is also called as dye penetrant inspection.Penetrant testing can be applied to most of materials including metallic and non metallic objects.This Presentation will gives you an overview about Liquid Penetrant Testing and Various methods used for Inspection
This presentation contain discription about Fine finishing process of complex shape material which cannot be finished by normal processess. three type of finishing process has been described they are Abrasive flow machining, MAgnetic Abrasive Finishing, Magneto Rheological abrasive finishing.
Introduction to Non Destructive Testing. Various Advantages, and also covers the 6 principal methods of Non Destructive Testing and their applications and limitations.
Unit-III Non Destructive Testing (NDT)
Subject Name: OML751 Testing of Materials
Topics: Various NDT tests [Visual inspection, Liquid penetrant test, Magnetic particle test, Thermography test, Radiographic test, Eddy current test, Ultrasonic test, Acoustic emission test]
B.E. Mechanical Engineering
Final Year, VII Semester, Open Elective Subject
[As per Anna University R-2017]
NON DESTRUCTIVE TESTING TECHNIQUES ARE USEFUL FOR FINDING DEFECTS LIKE CRACKS,POROSITY,FLAWS,BLOWHOLES IN MATERIALS WITHOUT DESTRUCTING COMPONENT. IT IS ALSO USEFUL FOR TAKING DECISIONS RELATED TO QUALITY OF MATERIAL OR PRODUCT. Non destructive testing includes study and testing of components by various methods such as dye penetration test, eddy current test, magnetic particle test, ndt, radiography test, ultrasonic test.
REFRIGERATION AND AIR CONDITIONING
Vapour compression refrigeration cycle - working principle - Effect of super heat and sub cooling - performance calculations - working principle of vapour absorption system - ammonia - water, lithium bromide water systems (description only) - air conditioning system - types and working principles
STEAM NOZZLES AND TURBINES
Flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio, supersaturated flow - impulse and reaction principles, velocity diagram, work done and efficiency – types of compounding - governors.
AIR COMPRESSORS
Classification - working principle - type of compressors, work of compression with and without clearance - volumetric efficiency - isothermal and isentropic efficiency of reciprocating compressors - multistage air compressor with inter cooling.
GAS POWER CYCLES
Cycles: Otto, Diesel, Dual, Brayton - Calculation of mean effective pressure - Air standard efficiency - Comparison of cycles
INTERNAL COMBUSTION ENGINES
Classification - Components and their function - valve timing diagram and port timing diagram - actual and theoretical p-v diagram of two stroke and four stroke engines – carburettor - diesel pump and injector system - battery and magneto ignition system - principles of combustion and detonation in CI engines - lubrication and cooling systems - performance parameters and calculations.
Electric Vehicles: History of electric vehicles - components of electric vehicle – layout & working of electric vehicles – comparison with internal combustion engine - advantages and disadvantages of EV.
Hybrid Vehicles: Components of hybrid vehicles – layout & working principle of hybrid vehicles - comparison with electric vehicles - advantages and disadvantages of hybrid vehicles.
UNIT-IV-STEERING, BRAKES AND SUSPENSION SYSTEMS.pptxDineshKumar4165
Steering geometry and types of steering gear box-Power Steering- Pneumatic and Hydraulic Braking Systems - Antilock Braking System (ABS)- Electronic brake force distribution (EBD) and Traction Control - Types of Front Axle- types of Suspension systems
UNIT-II-ENGINE AUXILIARY SYSTEMS &TURBOCHARGERDineshKumar4165
Electronically controlled gasoline injection system for SI engines, Electronically controlled diesel injection system, Unit injector system, Rotary distributor type and common rail direct injection system, Electronic ignition system - Transistorized coil ignition system, capacitive discharge ignition system, Turbo chargers -Waste Gate Turbocharger, Variable Geomentry Turbocharger, Engine emission control by three way catalytic converter system, Emission norms (Euro and BS).
Types of automobiles, vehicle construction and different layouts, chassis, frame and body, resistances to vehicle aerodynamics (various resistances and moments involved), IC engines-components functions and materials, variable valve timing (VVT).
UNIT 5 RECENT TRENDS IN NON-TRADITIONAL MACHINING PROCESSES.pptxDineshKumar4165
Recent developments in non-traditional machining processes, their working principles, equipments, effect of process parameters, applications, advantages and limitations. Comparison of non-traditional machining processes.
UNIT 4 ADVANCED NANO FINISHING PROCESSES.pptxDineshKumar4165
Abrasive flow machining, chemo-mechanical polishing, magnetic abrasive finishing, magneto rheological finishing, magneto rheological abrasive flow finishing their working principles, equipments, effect of process parameters, applications, advantages and limitations
UNIT 3 CHEMICAL AND ELECTRO-CHEMICAL ENERGY BASED PROCESSES.pptxDineshKumar4165
Chemical machining and Electro-Chemical machining (CHM and ECM)- Etchants – Maskant - techniques of applying maskants - Process Parameters – Surface finish and MRR-Applications. Principles of ECM- equipments-Surface Roughness and MRR - Electrical circuit-Process Parameters- ECG and ECH - Applications.
Numerical control (NC) machine tools - CNC: types, constructional details, special features - design considerations of CNC machines for improving machining accuracy -structural members - slide ways - linear bearings - ball screws - spindle drives and feed drives.
Centre lathe, constructional features, various operations and specifications, taper turning methods, thread cutting methods, special attachments, machining time and power estimation. Capstan and turret lathes – Automatic lathe: single spindle, swiss type, screw type, multi spindle - Turret Indexing mechanism - Bar feed mechanism
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
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Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
1. KONGUNADU COLLEGE OF ENGINEERING AND TECHNOLOGY
(AUTONOMOUS)
NAMAKKAL- TRICHY MAIN ROAD, THOTTIAM
DEPARTMENT OF MECHANICAL ENGINEERING
ME8097 NON DESTRUCTIVE TESTING AND EVALUATION
SEVENTH SEMESTER
UNIT-II
PRESENTED BY
M.DINESHKUMAR,
ASSISTANT PROFESSOR,
DEPARTMENT OF MECHANICAL ENGINEERING,
KONGUNADU COLLEGE OF ENGINEERING AND TECHNOLOGY.
2. ME8097 NON DESTRUCTIVE TESTING AND EVALUATION
OBJECTIVE:
To study and understand the various Non Destructive Evaluation and Testing methods, theory and their industrial applications.
UNIT I OVERVIEW OF NDT 9
NDT Versus Mechanical testing, Overview of the Non Destructive Testing Methods for the detection of manufacturing defects as
well as material characterisation. Relative merits and limitations, Various physical characteristics of materials and their
applications in NDT., Visual inspection –Unaided and aided.
UNIT II SURFACE NDE METHODS 9
Liquid Penetrant Testing - Principles, types and properties of liquid penetrants, developers, advantages and limitations of various
methods, Testing Procedure, Interpretation of results. Magnetic Particle Testing- Theory of magnetism, inspection materials
Magnetisation methods, Interpretation and evaluation of test indications, Principles and methods of demagnetization, Residual
magnetism.
UNIT III THERMOGRAPHY AND EDDY CURRENT TESTING (ET) 9
Thermography- Principles, Contact and non contact inspection methods, Techniques for applying liquid crystals, Advantages and
limitation - infrared radiation and infrared detectors, Instrumentations and methods, applications. Eddy Current Testing-Generation
of eddy currents, Properties of eddy currents, Eddy current sensing elements, Probes, Instrumentation, Types of arrangement,
Applications, advantages, Limitations, Interpretation/Evaluation.
UNIT IV ULTRASONIC TESTING (UT) AND ACOUSTIC EMISSION (AE) 9
Ultrasonic Testing-Principle, Transducers, transmission and pulse-echo method, straight beam and angle beam, instrumentation,
data representation, A/Scan, B-scan, C-scan. Phased Array Ultrasound, Time of Flight Diffraction. Acoustic Emission Technique –
Principle, AE parameters, Applications.
UNIT V RADIOGRAPHY (RT) 9
Principle, interaction of X-Ray with matter, imaging, film and film less techniques, types and use of filters and screens, geometric
factors, Inverse square, law, characteristics of films -graininess, density, speed, contrast, characteristic curves, Penetrameters,
Exposure charts, Radiographic equivalence. Fluoroscopy- Xero-Radiography, Computed Radiography, Computed Tomography.
TOTAL : 45 PERIODS
3. UNIT II SURFACE NDE METHODS
Liquid Penetrant Testing - Principles, types
and properties of liquid penetrants, developers,
advantages and limitations of various methods,
Testing Procedure, Interpretation of results.
Magnetic Particle Testing- Theory of
magnetism, inspection materials Magnetisation
methods, Interpretation and evaluation of test
indications, Principles and methods of
demagnetization, Residual magnetism.
4. Liquid Penetrant Testing
The principle of liquid penetrant tests is that the
liquid penetrants are drawn into surface flaws such
as cracks or porosities by capillary action. Then the
developer material in conjunction with visual
inspection reveals the surface flaw.
Characteristics:
• To locate cracks, porosity and other defects that
breaks the surface as a material and has enough
volume to trap and hold the penetrant material.
• To inspect large areas very effectively and will
work on most non-porous materials.
8. STAGES/TEST PROCEDURE OF LPI
1.Surface preparation
2. Application of penetrants
3.Dwell or penetrant time
4.Removal of excess penetrant
5.Application of Developer
6.Examinaion, interpretation and evaluation
7.Post process cleaning
9. 1.SURFACE PREPARATION
The test surface should be thoroughly cleaned
and dried before the penetrant is applied by
(i) Mechanical cleaning method
(ii) Chemical cleaning method
(iii)Solvent cleaning method
10.
11.
12. 2. APPLICATION OF PENETRANTS
Penetrant is a liquid capable of wetting the entire
surface and being drawn into fine openings.
13. 3.DWELL OR PENETRANT TIME
It is the period of time from when the penetrant applied to the surface until it is
removed.
25. Florescent Penetrant:
They are usually green in color and they
contain a dye or several dyes that fluoresce when
exposed to ultraviolet radiation.
Visible Penetrant:
It contain a red dye that provides high contrast
against the white developer background.
37. DEVELOPERS
Developer is an absorbent material capable of drawing traces of
penetrants from the discontinuities back into the surface.
Characteristics of Good Developer:
57. Magnetic Particle Inspection
Magnetic particle
Testing (MPT) is used for
the testing of material which
can be easily magnetized
(Ferromagnetic materials).
This method is
capable of detecting surface
and subsurface flaws such
as cracks and inclusions.
58. Basic Principles of Magnetic Particle (MPT)
• When a bar magnet is broken in
the center of its length, two
complete bar magnets will result.
• If the magnet is just cracked but
not broken completely in two, a
north and south pole will form at
each edge of the crack.
•
• If iron particles are sprinkled on a
cracked magnet, the particles will
be attracted to the poles at the
edges of the crack
59.
60.
61. Testing Procedure/Process of MPI
Step:1 Cleaning/ Surface preparation
Step:2 Demagnetization
Step:3 Magnetizing the object
Step:4 Addition of magnetic particles
Step:5 Illumination during inspection (e.g. UV lamp)
Step:6 Interpretation
Step:7 Documentation and reporting
81. MAGNETIC FIELD ORIENTATION IN MPI
• In MPI, the orientation of magnetic lines of
forces is important in detection of cracks or
other defects.
• Types of Magnetic field,
– Longitudinal Magnetic field
– Circular Magnetic field
84. EQUIPMENT USED IN MAGNETIC PARTICLE TESTING
1. Magnetization equipment
I. Portable
a) Permanent magnets
b) Electromagnetic yokes
c) Prods
d) Portable coils
II. Stationary
2. Portable power supplies
3. Lighting equipment
a) Visible color particle
b) Fluorescent particle