Welding is a process that joins materials by heating them to melt or soften them and allowing them to cool, forming a permanent bond. It is commonly used in manufacturing to join metal parts like in automobiles, ships, and machinery. There are several types of welding including arc welding, gas welding, resistance welding, and solid state welding. Arc welding, one of the most common methods, uses an electric arc to heat and fuse metals while gas welding uses a flame from oxygen and fuel gases to do so. Welding has many applications and advantages but also limitations like safety hazards from high heat and difficulty detecting defects.
If you are completely new to the world of welding, it can be defined as a method of joining and melting together two or more pieces of metal or other materials such as thermoplastics through the use of applied heat and pressure. cemetalfabrication.com
This presentation focuses on basics of solid state processes and its processes including the applications of specific processes. It also covers the advantages and disadvantages of the discussed processes.
Introduction to solid state welding processesMelfway
Welding joins metals through different ways. From arc to oxyfuel, there are various techniques to fasten metal pieces together to create unique products.
Contrary to popular belief, not all welding processes have to melt the metal. One such way of forming metal pieces without increasing the temperature is through solid-state welding, and there are different techniques under this branch too. Here are some of them:
this presentation provides you the knowledge releated to basic components and working of various types of welding which is known by every mechanical engineer hope you like....
If you are completely new to the world of welding, it can be defined as a method of joining and melting together two or more pieces of metal or other materials such as thermoplastics through the use of applied heat and pressure. cemetalfabrication.com
This presentation focuses on basics of solid state processes and its processes including the applications of specific processes. It also covers the advantages and disadvantages of the discussed processes.
Introduction to solid state welding processesMelfway
Welding joins metals through different ways. From arc to oxyfuel, there are various techniques to fasten metal pieces together to create unique products.
Contrary to popular belief, not all welding processes have to melt the metal. One such way of forming metal pieces without increasing the temperature is through solid-state welding, and there are different techniques under this branch too. Here are some of them:
this presentation provides you the knowledge releated to basic components and working of various types of welding which is known by every mechanical engineer hope you like....
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
Welding is a fabrication process that lets you join materials like metals by using heat at high temperatures. Welding uses high temperature to join the materials, whereas soldering and brazing do not allow the base metal to melt. After cooling, the base metal and the filler metal get attached.
The welding process came to light when there was a search for the technique for developing iron into useful shapes. Welded blades were the first result of welding in the early years—the carburization of iron produced hard steel that was very brittle for usage. Later interlaying the rigid and soft iron with high-carbon material and hammer forging resulted in a tough and durable blade.
The process of welding uses filler material. The filler material is the pool of molten material that aids in the formation of a strong link between the base metal. The shielding process after welding the metals protects both the base and filler components from being oxidised.
From gas flame to ultrasound, many energies are used in welding like electron beams, electric arc, LASER, and friction. Now let us understand various types of welding.
Types of Welding
There are many types of welding used for various purposes under different situations. They are:
Manual welding includes:
Forge welding
Arc welding
Oxy-fuel welding
Shielded metal arc welding
Gas metal arc welding
submerged arc welding
flux-cored arc welding
electroslag welding
Laser beam welding
electron beam welding
magnetic pulse welding
friction stir welding
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
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https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
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Cheryl Hung, ochery.com
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State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
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Attacks on counties – USA
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In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
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Cyber risk predictions
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Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
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Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
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https://www.rttsweb.com/jmeter-integration-webinar
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Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
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The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
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- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
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Designing Great Products: The Power of Design and Leadership by Chief Designe...
TYPES OF WELDING
1. WELDING PROCESS
Engineering Collage Tuwa
(ECT)
SUBJECT- UTILAZATION OF ELECTRICAL
ENERGY & TRACTION
UNDER ASSI. PROF.:- SHRI JAVED DHANTIYA
NAME OF STUDENT ENROLLMENT NO.
VASANI MASUM K. 160553109011
ARPIT S. SONI 160553109010
LAKHARIA PREET 160553109005
RATHOD KIRTI V. 150550109007
2. -Welding is a materials joining process which
produces coalescence of materials by heating
them to suitable temperatures with or without the
application of pressure or by the application of
pressure alone, and with or without the use of filler
material.
– Welding is used for making permanent joints.
– It is used in the manufacture of automobile bodies, aircraft
frames, railway wagons, machine frames, structural works,
tanks, furniture, boilers, general repair work and ship
building.
WELDING
3. TYPES
• Plastic Welding or Pressure Welding
The piece of metal to be joined are heated to a
plastic state and forced together by external
pressure
(Ex) Resistance welding
• Fusion Welding or Non-Pressure
Welding
The material at the joint is heated to a molten state
and
allowed to solidify
(Ex) Gas welding, Arc welding
4. Classification of
welding processes:
(i). Arc welding
• Carbon arc
• Metal arc
• Metal inert gas
• Tungsten inert gas
• Plasma arc
• Submerged arc
• Electro-slag
(ii). Gas Welding
• Oxy-acetylene
• Air-acetylene
• Oxy-hydrogen
(iii). Resistance Welding
• Butt
• Spot
• Seam
• Projection
• Percussion
(iv)Thermit Welding
(v)Solid State Welding
Friction
Ultrasonic
Diffusion
Explosive
(vi)Newer Welding
Electron-beam
Laser
(vii)Related Process
Oxy-acetylene cutting
Arc cutting
Hard facing
Brazing
Soldering
5. Arc welding
• Equipments:
• A welding generator (D.C.) or Transformer (A.C.)
• Two cables- one for work and one for electrode
• Electrode holder
• Electrode
• Protective shield
• Gloves
• Wire brush
• Chipping hammer
• Goggles
8. Arc Welding
Uses an electric arc to
coalesce
metals
Arc welding is the most
common
method of welding metals
Electricity travels from
electrode
to base metal to ground
10. Arc welding
Advantages
– Most efficient way to join
metals
– Lowest-cost joining
method
– Affords lighter weight
through better utilization of
materials
– Joins all commercial
metals
– Provides design flexibility
Limitations
• Manually applied, therefore
high labor cost.
• Need high energy causing
danger
• Not convenient for
disassembly.
• Defects are hard to detect at
joints.
11. Comparison of A.C. and D.C. arc welding
Alternating Current (from Transformer)
More efficiency
Power consumption less
Cost of equipment is less
Higher voltage – hence not safe
Not suitable for welding non ferrous metals
Not preferred for welding thin sections
Any terminal can be connected to the work or electrode
12. Comparison of A.C. and D.C. arc welding
Direct Current (from Generator)
Less efficiency
Power consumption more
Cost of equipment is more
Low voltage – safer operation
suitable for both ferrous non ferrous metals
preferred for welding thin sections
Positive terminal connected to the work
Negative terminal connected to the electrode
13. GAS WELDING
• Sound weld is obtained by selecting proper size of
flame, filler
material and method of moving torch
• The temperature generated during the process is
33000c
• When the metal is fused, oxygen from the
atmosphere and the torch
combines with molten metal and forms oxides, results
defective
weld
• Fluxes are added to the welded metal to remove
oxides
• Common fluxes used are made of sodium,
potassium. Lithium and
borax.
• Flux can be applied as paste, powder,liquid.solid
coating or gas.
15. Brazing Brazing and Soldering
It is a low temperature joining process. It is performed at
temperatures above 840º F and it generally affords
strengths
comparable to those of the metal which it joins. It is low
temperature in that it is done below the melting point of the
base
metal. It is achieved by diffusion without fusion (melting) of
the base
Brazing can be classified as
Torch brazing
Dip brazing
Furnace brazing
Induction brazing
17. Advantages & Disadvantages
Advantages
• Dissimilar metals which canot be welded can be
joined by brazing
• Very thin metals can be joined
• Metals with different thickness can be joined easily
• In brazing thermal stresses are not produced in the
work piece.
Hence there is no distortion
• Using this process, carbides tips are brazed on the
steel tool
holders
Disadvantages
• Brazed joints have lesser strength compared to
welding
• Joint preparation cost is more
• Can be used for thin sheet metal sections
18. Soldering
• It is a low temperature joining
process. It is performed at
temperatures below 840ºF for
joining.
• Soldering is used for,
• Sealing, as in automotive
radiators or tin cans
• Electrical Connections
• Joining thermally sensitive
components
• Joining dissimilar metals
