The document discusses various welding processes including arc welding, gas welding, plastic welding, and fusion welding. It provides details on common arc welding techniques like shielded metal arc welding, submerged arc welding, and gas metal arc welding. The document also covers gas welding processes using oxy-acetylene, oxy-hydrogen, and air-acetylene flames. It discusses equipment, applications, advantages and disadvantages for different welding methods.
this ppt pdf beneficial for 1st year engineering student who studying workshop technology. in this pdf types of joining, gas welding, arc welding, spot welding, tig welding, mig welding, soldering brazing and different welding defect has been discussed.
this ppt pdf beneficial for 1st year engineering student who studying workshop technology. in this pdf types of joining, gas welding, arc welding, spot welding, tig welding, mig welding, soldering brazing and different welding defect has been discussed.
An introduction to various welding processes, suitable for all welding students and welding professionals like welder, supervisor, inspector, engineer.
SMAW is one of the basic and most common of all welding processes. this presentation is geared towards helping the general public in understanding the fundamentals of SMAW process. Look out for my next series of publications...
i have made a presentation on welding and welding transformer, here i included types of weldings and their advantages and types of welding transformer and their working, construction, application, advantages..
Metal Joining Processes: Welding, Riveting, Bolting, Brazing, SolderingJJ Technical Solutions
The presentation is a mechanical engineering presentation on the basics of metal joining processes. The basics of metal joining processes such as welding, riveting is explained in detail.
An introduction to various welding processes, suitable for all welding students and welding professionals like welder, supervisor, inspector, engineer.
SMAW is one of the basic and most common of all welding processes. this presentation is geared towards helping the general public in understanding the fundamentals of SMAW process. Look out for my next series of publications...
i have made a presentation on welding and welding transformer, here i included types of weldings and their advantages and types of welding transformer and their working, construction, application, advantages..
Metal Joining Processes: Welding, Riveting, Bolting, Brazing, SolderingJJ Technical Solutions
The presentation is a mechanical engineering presentation on the basics of metal joining processes. The basics of metal joining processes such as welding, riveting is explained in detail.
Personal Entrepreneurial Competencies (PECS) in Commercial CookingOiluj Oderrab
This is my first sharing of presentation here and hoping to help other TLE teachers as they introduce the PECs in Commercial Cooking. I would like to give credits to the resources of the information I put together and to the images I googled. Thank you so much.
Personal Entrepreneurial Characteristics (PECs) CEFE MethodologyFabio Buiza
Presentation used in San Salvador, El Salvador in Central America, to describe the Personal Entrepreneurial Characteristics (PECs) as a basic element of the CEFE methodology and its importance in the formation of people in Business and Entrepreneurs
the slide shows the advance welding technic like as Tig And Mig Welding Process.
it help people to understand the advance manufacturing process for welding.
it made by Sk Samsuddin.
In the modern world of industrialization the wear is eating metal assets worth millions of dollars per year. The wear is in the form of corrosion, erosion, abrasion etc. which occur in the process industries like oil & gas, refineries, cement plants, steel plants, shipping and offshore working structures. The equipments like pressure vessels, heat exchangers, hydro processing reactors which very often work at elevated temperatures face corrosion in the internal diameter.Hastelloy C-276weld overlay on ferrous material is developed for outstanding resistance to wide variety of chemical process environments such as ferric and cupric chlorides, hot contaminated mineral acids, solvents, chlorine and chlorine contained media, both inorganic and organic, dry chlorine, formic and acetic acids, acetic anhydride, sea water and brine solutions.Selection of SMAW is for development of hastalloy C-276 material with SMAW process to use as a weld overlay process at non accessible area & where position is constraint which is not feasible by other processes like ESSC, FCAW, and SAW etc.
Welding process /certified fixed orthodontic courses by Indian dental acad...Indian dental academy
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power systems ppt on Arc welding and Electric welding equipment and compariso...sanjay kumar pediredla
this ppt is mainly based on the power systems related topic and in this ppt mainly consists of ac and dc weldings and which welding is used mainly and the importance of arc welding and electric welding and the techniques are also discussed in this and it is so helpful .and the safety requirements and the equipment used is also discussed in this topic
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
1. joining together (metal parts) by heating the
surfaces to the point of melting with a blowpipe,
electric arc, or other means, and uniting them by
pressing, hammering, etc.
2. 1 . PLASTIC WELDING OR
PRESSURE WELDING
Example : Resistance
welding
2. FUSION WELDING OR NON-
PRESSURE WELDING
Example : a .Arc welding
b . Gas welding
3. Arc welding is a type of welding that uses a welding power supply to create an electric
arc between an electrode and the base material to melt the metals at the welding point.
Today it remains an important process for the fabrication of steel structures and vehicles.
4. SHIELDED METAL
ARC WELDING
MACHINES (SMAW) :-
Shielded metal arc
welding (SMAW), also
known as manual metal
arc welding (MMA or
MMAW), flux shielded
arc welding or
informally as
stick welding, is a
manual
arc welding process
that uses a consumable
electrode covered with
a flux to lay the weld.
Submerged Arc
Welding (SAW) :-
Submerged arc
welding (SAW) is a
common arc welding
process. The first patent
on the submerged-arc
welding (SAW) process
was taken out in 1935
and covered an electric
arc beneath a bed of
granulated flux.
5. ADVANTAGES
1. Relative simplicity and
portability of equipment
.
2.Low cost .
3.Adaptable to confined
spaces and remote locations.
4. Suitable for out-of-position
welding
DISADVANTAGES
1.Not as productive as
continuous wire
processes.
2. Likely to be more
costly to deposit a
given quantity of
metal.
3. Relatively high metal
wastage (electrode
stubs)
6. ADVANTAGES
1 .Welding is carried out without
sparks, smoke, flash or spatter.
2.Weld metal deposit possesses
uniformity, good ductility,
corrosion resistance and good
impact strength.
3.Very neat appearance and
smooth weld shapes can be got.
DISADVANTAGES
1.The flux needs replacing of
the same on the joint which is
not always possible.
2.The progress is limited to
welding in flat position and on
the metal more than 4.8
mm thick. In small thicknesses
burn through is likely to occur.
3. Flux is subjected to
contamination that may cause
weld porosity.
7. Limited to ferrous (steel or stainless steels)
and some nickel-based alloys.
Normally limited to long straight seams or
rotated pipes or vessels.
Requires inter-pass and post weld slag
removal.
8. Gas metal arc welding (GMAW),
sometimes referred to by its
subtypes metal inert
gas (MIG) welding or metal active
gas (MAG)welding, is a welding process
in which an electric arc forms between a
consumable wire electrode and the work
piece metal(s), which heats the work
piece metal(s), causing them to melt and
join.
10. PURPOSES
Oxyacetylene gas welding is
commonly used to permanently join
mild steel.A mixture of oxygen and
acetylene, burns as an intense /
focused flame, at approximately
3,500 degrees centigrade.When the
flame comes in contact with steel, it
melts the surface forming a molten
pool, allowing welding to take
place. Oxyacetylene can also be
used for brazing, bronze welding,
forging / shaping metal and cutting.
This type of welding is suitable for
the prefabrication of steel sheet,
tubes and plates.
12. DEFINATION
A gas-welding process
in which the heat is
obtained from the
combustion of acetylene
and air.
DIAGRAM
13. Ox hydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases.This gaseous mixture is
used for torches to process refractory materials and was the first[1] gaseous mixture used
for welding. Theoretically, a ratio of 2:1 hydrogen: oxygen is enough to achieve maximum
efficiency; in practice a ratio 4:1 or 5:1 is needed to avoid an oxidizing flame.[2]
14. Portability – moving the welding equipment
may not be that tough, but you also have to
handle the high pressure cylinders that contain
the shielding gas. Proper care must be taken.
Sensitive to wind – the shielding gas used for
mig welding can easily be blown away when
welding outdoors. Even inside, a fan or a wind
draft of as low as 5mph can be enough to cause
porosity.
Lack of fusion – due to the ability to weld at low
currents this process has the potential for lack of
fusision when running in short circuit mode.
15. ADVANTAGES
Low Hydrogen weld
deposit with all electrodes
High production factor
since no slag is required to
be removed and uses a
continuous electrode.
With the parameters
properly set for the
application, anyone can
weld after a very short
amount of practice.
DISADVANTAGES
Requires aWire Feeder
which is difficult to move
and can sometimes be a
maintenance/repair
burden.
Needs Shielding Gas so
welding in windy
conditions can be difficult.
Is not suitable for windy
conditions.
16.
17. There are three basic flame types: neutral (balanced), excess acetylene (carburizing), and
excess oxygen (oxidizing) as shown below. A neutral flame is named neutral since in most
cases will have no chemical effect on the metal being welded. A carburizing flame will
produce iron carbide, causing a chemical change in steel and iron. For this reason a
carburizing flame is not used on metals that absorb carbon. An oxidizing flame is hotter
than a neutral flame and is often used on copper and zinc.
18. Welding machine (A.C or D.C)
Two cables for job and another for electrode
Electrode holder
Gloves
Wire brush
Chipping hammer
Goggles
19.
20. Welding can be a dangerous and unhealthy practice without the proper
precautions; however, with the use of new technology and proper protection
the risks of injury or death associated with welding can be greatly reduced.