It is that branch of welding in which Electric current is used to produce the large heat required for joining together into firm two pieces of metals.
Electrical welding process fall into two main categories
RESISTANCE WELDING.
ARC WELDING.
The project is based on electric heating and its method. This project is a college project done by students. So the project might have some mistakes. Use this project as any source is restricted. The project is uploaded only because of the benefits of the students who want to get the basic idea of the powerpoint presentation of a project.
The project is based on electric heating and its method. This project is a college project done by students. So the project might have some mistakes. Use this project as any source is restricted. The project is uploaded only because of the benefits of the students who want to get the basic idea of the powerpoint presentation of a project.
types of transformers,seminar on transformers,
What is Transformer,
Working principle,
Types of transformers,
Ideal and practical transformer,
Applications of transformers.
Presentation on 132/33 KVSubstation Training Sakshi Rastogi
This is a presentation based on the 132/33 KV substation. At which I have done my vocational Training. this presentation uncovers all the aspects related to the substation.
The manual is useful for PG students belongs to ME power Electronics and Drives
By
M.MURUGANANDAM. M.E.,(Ph.D).,MIEEE.,MISTE,
Assistant Professor & Head / EIE,
Muthayammal Engineering College,
Rasipuram,
Namakkal-637 408.
Cell No: 9965768327
Over Head Line Insulators : Presentation Topic in Electrical Engineering SeminarSandip Kumar Sahoo
Over Head Line Insulators a Presentation Topic in Electrical Engineering for Seminars was prepared by me with comprehensive research and phenomenal guidance. You just need a little research on the mentioned points and you are ready to go. I hope this PPT will help you immensely.
The complete list of thyristor family members include diac (bidirectional diode thyristor), triac (bidirectional triode thyristor), SCR (silicon controlled rectifier), Shockley diode, SCS (silicon controlled switch), SBS (silicon bilateral switch), SUS (silicon unilateral switch) also known as complementary SCR or CSCR, LASCR (light activated SCR), LAS (light activated switch) and LASCS (light activated SCS).
types of transformers,seminar on transformers,
What is Transformer,
Working principle,
Types of transformers,
Ideal and practical transformer,
Applications of transformers.
Presentation on 132/33 KVSubstation Training Sakshi Rastogi
This is a presentation based on the 132/33 KV substation. At which I have done my vocational Training. this presentation uncovers all the aspects related to the substation.
The manual is useful for PG students belongs to ME power Electronics and Drives
By
M.MURUGANANDAM. M.E.,(Ph.D).,MIEEE.,MISTE,
Assistant Professor & Head / EIE,
Muthayammal Engineering College,
Rasipuram,
Namakkal-637 408.
Cell No: 9965768327
Over Head Line Insulators : Presentation Topic in Electrical Engineering SeminarSandip Kumar Sahoo
Over Head Line Insulators a Presentation Topic in Electrical Engineering for Seminars was prepared by me with comprehensive research and phenomenal guidance. You just need a little research on the mentioned points and you are ready to go. I hope this PPT will help you immensely.
The complete list of thyristor family members include diac (bidirectional diode thyristor), triac (bidirectional triode thyristor), SCR (silicon controlled rectifier), Shockley diode, SCS (silicon controlled switch), SBS (silicon bilateral switch), SUS (silicon unilateral switch) also known as complementary SCR or CSCR, LASCR (light activated SCR), LAS (light activated switch) and LASCS (light activated SCS).
Welding process
Arc Welding
Resistance Welding
Oxy fuel Gas Welding
Other Fusion Welding Processes
Solid State Welding
Weld Quality
Weld ability
Design Considerations in Welding
Welding is a fabrication process used to join materials, typically metals or thermoplastics, by causing fusion, leading to the creation of a strong, permanent bond. Various welding processes exist, each with its own techniques, applications, and suitability for different materials and conditions. Some of the common welding processes include:
Shielded Metal Arc Welding (SMAW):
Commonly known as "stick welding," it uses a consumable electrode coated with flux to create the weld.
It's versatile and widely used in construction, maintenance, and repair work.
Gas Metal Arc Welding (GMAW/MIG - Metal Inert Gas):
Uses a continuous solid wire electrode and a shielding gas (typically argon or a mix of gases) to protect the weld area from atmospheric contamination.
Generally used in manufacturing, automotive, and construction industries.
Gas Tungsten Arc Welding (GTAW/TIG - Tungsten Inert Gas):
Uses a non-consumable tungsten electrode and a separate filler material if needed.
Often used for thin materials, critical welds, or where precise control is necessary.
Flux-Cored Arc Welding (FCAW):
Similar to MIG welding but uses a tubular wire filled with flux instead of a solid wire and external shielding gas.
Commonly used in heavy equipment manufacturing and construction.
Submerged Arc Welding (SAW):
Involves feeding a continuous, solid filler wire electrode and granular flux over the weld zone.
Ideal for heavy industrial applications due to its high deposition rates.
Resistance Spot Welding (RSW):
Joins metals by applying pressure and passing current through the metals using copper alloy electrodes.
Widely used in automotive manufacturing and sheet metal applications.
Oxy-Fuel Welding (OFW):
Uses fuel gases and oxygen to weld and cut metals.
Still used for maintenance and repair work, though its use has declined in favor of other processes.
Electron Beam Welding (EBW) and Laser Beam Welding (LBW):
Utilize highly focused beams of electrons or lasers to create high-quality welds in precise and delicate applications, often in aerospace or electronics industries.
Each welding method has its advantages and limitations, making certain techniques better suited for specific applications based on factors like material type, thickness, required strength, and the environment in which the welding will be performed.
Welding processes continue to evolve, with advancements in technology improving efficiency, precision, and safety, and newer techniques being developed to cater to specific industrial needs and challenges.
Welding process /certified fixed orthodontic courses by Indian dental acad...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
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Performance and Analysis of Weld Joint by using Two Dissimilar Electrodes E60...ijtsrd
In this project we discussed the characteristics and performance of electrodes on the MS metal in arc welding method. In this two different electrodes E6010 and E7018 welding parameters investigated. After that the dye penetration test conducted for knowing the defects due to electrodes and welding ,again the welded specimens were cut and machined to standard configurations for tensile test. The results showed that selecting different welding electrodes had a remarkable effect on the mechanical properties such as the ultimate tensile strength, hardness, elongation percentage, and yield strength of the welded specimens. The increment in the electrical current for each electrode in the welding processes led to increase in yield strength and tensile strength. The initial increase in tensile strength and yield strengths were observed. This behaviour was attributed to the fact that different welding electrodes and increased the required electrical current to melting for the welding electrode, increased the electrical current led to increased heat input on heat affected zone HAZ , then the observed change mechanical properties which could create area for defect. The welding processes and tensile test at a room temperature was performed. P. Varalakshmi | K. Manohar | K. Mallikarjun | K. Lokesh ""Performance and Analysis of Weld Joint by using Two Dissimilar Electrodes E6010 and E7018"" 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/ijtsrd23172.pdf
Paper URL: https://www.ijtsrd.com/engineering/manufacturing-engineering/23172/performance-and-analysis-of-weld-joint-by-using-two-dissimilar-electrodes-e6010-and-e7018/p-varalakshmi
A transducer is a device which transforms a non-electricalphysical quantity (i.e. temperature, sound or light) into anelectrical signal (i.e. voltage, current, capacity…)
In a generating station the generator and transformer are the most expensive equipments and hence it is desirable to employ protective system to isolate the faulty equipment as quickly as possible to keep the healthy section in normal operation and to ensure uninterruptable power supply.
Design of Magnetic Circuit for Synchronous MachineAbhishek Choksi
Mmf required to drive flux in the magnetic circuit of a synchronous machine can be calculated as by the governing terms:-
Mmf for air gap
Mmf for armature teeth
Mmf for core
Mmf for poles
Mmf for yoke
Total field Mmf at no load
Total field Mmf at full load
Load flow studies or Power flow studies is the analysis of a power system in normal steady state condition.
Load flow studies basically comprises of the determination of
Voltage
Current
Active Power
Reactive Power
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
Digital control is used to create a square wave, a signal switched between on and off.
DC motor and open loop speed control.
Closed loop speed control of DC drives.
Closed loop speed control with inner loop current control
Closed loop field control
Closed loop armature control.
Synthesis of unsymmetrical phasors from their symmetrical componentsAbhishek Choksi
Power systems are large and complex three phase system
In normal operating conditions , electrical power system operate in balanced condition.
But sometimes certain situation occurs like fault or short circuit which make the system to be unstable.
Single phase equivalent system method of analysis cannot be applied to such system.
In early days, there was a little demand for electrical energy so that small power stations were built to supply lighting and heating loads. However, the widespread use of electrical energy by modern civilisation has necessitated to produce bulk electrical energy economically and efficiently.
The increased demand of electrical energy can be met by building big power stations at favourable places where fuel (coal or gas) or water energy is available in abundance.
The armature winding is the main current-carrying winding in which the electromotive force or counter-emf of rotation is induced.
The current in the armature winding is known as the armature current.
The location of the winding depends upon the type of machine.
The armature windings of dc motors are located on the rotor, since they must operate in union with the commutator.
In DC rotating machines other than brushless DC machines, it is usually rotating.
The microprocessor is the core of computer systems.
Nowadays many communication, digital entertainment, portable devices, are controlled by them.
A designer should know what types of components he needs, ways to reduce production costs and product reliable.
Principle of regenerative braking and chopper configurationAbhishek Choksi
A Regenerative Brake, is an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into another form, which can be either used immediately or stored until needed.
Regenerative braking takes place whenever the speed of the motor exceeds the synchronous speed.
This braking method is called regenerative baking because here the motor works as generator and supply itself is given power from the load, i.e. motors.
Root locus is a graphical representation of the closed-loop poles as a system parameter is varied.
It can be used to describe qualitatively the performance of a system as various parameters are changed.
It gives graphic representation of a system’s transient response and also stability.
We can see the range of stability, instability, and the conditions that cause a system to break into oscillation.
Web application attack and audit framework (w3af)Abhishek Choksi
w3af (web application attack and audit framework) is an open-source web application security scanner. The project provides a vulnerability scanner and exploitation tool for Web applications. It provides information about security vulnerabilities and aids in penetration testing efforts. Users have the choice between a graphic user interface and a command-line interface.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
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.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
1. 6th Sem
Electrical Engineering Department
Batch – B1 (2014 Batch)
Abhishek Choksi
(140120109005)
Utilization of Electrical Energy & Traction (2160907)
ALA Presentation
On
“Electric Welding”
Prepared By: Guided By:
Prof. Rahish Silavat
Gandhinagar Institute Of Technology
2. Definition of Electric Welding
It is that branch of welding in which Electric current is used to produce the
large heat required for joining together into firm two pieces of metals.
Electrical welding process fall into two main categories
RESISTANCE WELDING.
ARC WELDING.
4. Resistance Welding (RW)
Heat generated by electrical resistance to current
flow at junction to be welded.
Butt welding is a welding technique used to
connect parts which are nearly parallel and don't
overlap. It can be used to run a processing machine
continuously, as opposed to having to restart such
machine with a new supply of metals. Butt-welding
is an economical and reliable way of joining
without using additional components.
Butt Welding (BRW)
5. Spot Welding (SW)
Resistance welding process in which fusion of
faying surfaces of a lap joint is achieved at
one location by opposing electrodes
Used to join sheet metal parts using a series
of spot welds
Widely used in mass production of
automobiles, appliances, metal furniture, and
other products made of sheet metal
Typical car body has ~ 10,000 spot welds
Annual production of automobiles in the
world is measured in tens of millions of
units
6. Seam Welding (SW)
Uses rotating wheel electrodes
to produce a series of
overlapping spot welds along lap
joint.
Can produce air-tight joints
Applications:
Gasoline tanks
automobile mufflers
Various other sheet metal
containers
8. Projection Welding (PW)
A resistance welding process in which coalescence occurs at one or
more small contact points on parts.
Contact points determined by design of parts to be joined
May consist of projections, embossments, or localized intersections of
parts
9. What is an Electric Arc?
An electric arc is a discharge of electric current across a gap in a circuit.
It is sustained by an ionized column of gas (plasma) through which the current flows.
To initiate the arc in AW, electrode is brought into contact with work and then quickly
separated from it by a short distance.
Electric energy from the arc produces
temperatures ~ 10,000 F (55000C),
hot enough to melt any metal
10. Carbon Arc Welding (CAW)
Carbon Arc Welding (CAW) is
a welding process, in which heat is
generated by an electric arc struck between
an carbon electrode and the work piece.
The arc heats and melts the work pieces
edges, forming a joint.
Carbon arc welding is the oldest welding
process.
11. a manual arc welding process that uses a
consumable electrode coated in flux.
An electric current, either alternating current or
direct current, forms electric arc between the
electrode and the metals to be joined.
As the weld is laid, the flux coating of the
electrode disintegrates, providing a shielding gas
and a layer of slag, both of which protect the
weld from contamination until it cools.
Shielded Metal Arc Welding (SMAW)
12. Atomic hydrogen welding (AHW) is an arc welding process that uses an arc
between two metal tungsten electrodes in a shielding atmosphere of
hydrogen.
The electric arc efficiently
breaks up the hydrogen
molecules, which later
recombine with tremendous
release of heat, reaching
temperatures from 3400 to
4000 °C.
Atomic hydrogen welding (AHW)
13. References
• Larry Jeffus’ and Harold Johnson’s Welding Principles and
Applications.
• http://www.esabna.com/EUWeb/AWTC/Lesson1_1.htm
• http://teacher.buet.ac.bd/shabnam/14250_ch3.pdf
• http://ebookbrowse.com/chapter2‐manual‐metal‐arc‐welding‐pdf‐d7
9324541
• http://www.esab.ch/de/de/support/upload/XA00136020‐Submerged
‐Arc‐welding‐ handbook.pdf
• Wikipedia -- https://en.wikipedia.org/wiki/welding