Welding is a process that joins materials by heating them to melt and fuse together. The document discusses oxy-acetylene welding which uses oxygen and acetylene gases to produce a high-temperature flame. It describes the equipment, gases, and techniques used in oxy-acetylene welding including neutral, carburizing, and oxidizing flames. The document also covers advantages like portability, disadvantages like long heating times, and applications for sheet metal work.
This document provides information on welding positions, gas welding and cutting, oxy-acetylene welding equipment and techniques. It discusses the different welding positions - flat, horizontal, vertical and overhead. It describes the oxy-acetylene welding process and equipment used, including cylinders, regulators, torches and flames. It also covers gas welding techniques such as leftward, rightward and vertical welding.
This Presentation covers the Basic concepts of Gas welding and Gas cutting. For more information, please refer the books mentioned in the references slide.... Thank you
Gas welding is a process that uses a flame from oxygen and a fuel gas, usually acetylene, to heat and join metals. Oxy-acetylene welding is the most common type and uses an inner flame cone reaching temperatures over 3000°C to melt the metals. There are three types of flames - neutral, reducing, and oxidizing - which are used for different materials. The equipment includes gas cylinders, regulators, hoses, and a welding torch. While inexpensive and portable, gas welding has limitations such as low welding speed and risk of distortion.
Oxyacetylene welding uses a flame produced by burning acetylene and oxygen to heat metal to its melting point, allowing pieces to be joined. It can weld dissimilar metals and is used with or without a filler rod. While an older technology, it remains useful for brazing and can be replaced by newer gas tungsten arc welding. The process requires cylinders of acetylene and oxygen, regulators to control pressure, hoses, a welding torch, and safety equipment like goggles. Flux may be added to remove oxides from the molten metal and produce a quality weld.
Gas welding involves melting and joining metals using a flame produced by the reaction of a fuel gas, usually acetylene, with oxygen. Oxy-acetylene welding is commonly used as it produces a very high flame temperature of over 3,000°C. Flux may be used to clean the weld area and form a protective slag layer. There are three main types of welding flames - neutral, reducing, and oxidizing - which are produced by varying the ratio of oxygen to acetylene in the flame. Oxy-acetylene welding equipment includes gas cylinders, pressure regulators, hoses, and a welding torch.
This document provides an overview of various joining processes including welding and brazing. It discusses gas welding processes like oxy-acetylene welding in detail. It also covers different arc welding processes such as shielded metal arc welding, gas tungsten arc welding, flux-cored arc welding, and submerged arc welding. Other joining techniques summarized include resistance welding, plasma arc welding, electroslag welding, and thermit welding. Key information about equipment, process parameters, advantages and applications are provided for each welding and brazing process.
Gas welding involves heating metals with a flame produced by the reaction of fuel gas, typically acetylene, and oxygen. Oxyacetylene welding is the most common type and produces flames over 3,000°C. Flux may be used to clean the weld and form a protective slag layer. There are three main flame types - neutral, reducing, and oxidizing - which are used for different materials like steel, aluminum, or brass. Equipment includes gas cylinders, regulators, hoses, and a welding torch. While simple, gas welding has limitations such as low speed and risk of distortion.
The document discusses welding processes. It defines welding as joining metals with or without heat or pressure while adding or not adding filler materials. It classifies welding into fusion welding which melts the joint and non-fusion welding which heats the joint plasticly. Key welding processes include gas welding, arc welding, and chemical/brazing. Welding provides advantages like permanent joints and strength but has limitations like requiring skilled labor and being difficult to inspect for defects. Oxy-acetylene welding uses pressurized oxygen and acetylene gases to generate heat over 3200°C for melting metals while controlling the torch angle and using different flame types.
This document provides information on welding positions, gas welding and cutting, oxy-acetylene welding equipment and techniques. It discusses the different welding positions - flat, horizontal, vertical and overhead. It describes the oxy-acetylene welding process and equipment used, including cylinders, regulators, torches and flames. It also covers gas welding techniques such as leftward, rightward and vertical welding.
This Presentation covers the Basic concepts of Gas welding and Gas cutting. For more information, please refer the books mentioned in the references slide.... Thank you
Gas welding is a process that uses a flame from oxygen and a fuel gas, usually acetylene, to heat and join metals. Oxy-acetylene welding is the most common type and uses an inner flame cone reaching temperatures over 3000°C to melt the metals. There are three types of flames - neutral, reducing, and oxidizing - which are used for different materials. The equipment includes gas cylinders, regulators, hoses, and a welding torch. While inexpensive and portable, gas welding has limitations such as low welding speed and risk of distortion.
Oxyacetylene welding uses a flame produced by burning acetylene and oxygen to heat metal to its melting point, allowing pieces to be joined. It can weld dissimilar metals and is used with or without a filler rod. While an older technology, it remains useful for brazing and can be replaced by newer gas tungsten arc welding. The process requires cylinders of acetylene and oxygen, regulators to control pressure, hoses, a welding torch, and safety equipment like goggles. Flux may be added to remove oxides from the molten metal and produce a quality weld.
Gas welding involves melting and joining metals using a flame produced by the reaction of a fuel gas, usually acetylene, with oxygen. Oxy-acetylene welding is commonly used as it produces a very high flame temperature of over 3,000°C. Flux may be used to clean the weld area and form a protective slag layer. There are three main types of welding flames - neutral, reducing, and oxidizing - which are produced by varying the ratio of oxygen to acetylene in the flame. Oxy-acetylene welding equipment includes gas cylinders, pressure regulators, hoses, and a welding torch.
This document provides an overview of various joining processes including welding and brazing. It discusses gas welding processes like oxy-acetylene welding in detail. It also covers different arc welding processes such as shielded metal arc welding, gas tungsten arc welding, flux-cored arc welding, and submerged arc welding. Other joining techniques summarized include resistance welding, plasma arc welding, electroslag welding, and thermit welding. Key information about equipment, process parameters, advantages and applications are provided for each welding and brazing process.
Gas welding involves heating metals with a flame produced by the reaction of fuel gas, typically acetylene, and oxygen. Oxyacetylene welding is the most common type and produces flames over 3,000°C. Flux may be used to clean the weld and form a protective slag layer. There are three main flame types - neutral, reducing, and oxidizing - which are used for different materials like steel, aluminum, or brass. Equipment includes gas cylinders, regulators, hoses, and a welding torch. While simple, gas welding has limitations such as low speed and risk of distortion.
The document discusses welding processes. It defines welding as joining metals with or without heat or pressure while adding or not adding filler materials. It classifies welding into fusion welding which melts the joint and non-fusion welding which heats the joint plasticly. Key welding processes include gas welding, arc welding, and chemical/brazing. Welding provides advantages like permanent joints and strength but has limitations like requiring skilled labor and being difficult to inspect for defects. Oxy-acetylene welding uses pressurized oxygen and acetylene gases to generate heat over 3200°C for melting metals while controlling the torch angle and using different flame types.
This document discusses different types of welding processes. It begins by defining welding as a process of joining similar or dissimilar metals through the application of heat, with or without pressure and the addition of filler material. It then provides a brief history of welding technology and describes some modern welding techniques. The document goes on to classify welding into two main categories: fusion welding, which joins metals through melting; and pressure welding, which joins metals in their solid state through applied pressure. It provides details on specific fusion and pressure welding methods.
Welding is a process that joins materials by heating them to a temperature that causes melting or softening, with or without the use of pressure or filler material. There are two main types: plastic welding uses pressure to join heated materials, while fusion welding heats materials to a molten state to fuse them together. Oxyacetylene welding uses a flame from burning acetylene and oxygen to heat and fuse metals. It can be used with or without a filler rod and produces temperatures up to 34,000°C, making it suitable for welding steels, aluminum, copper and cast iron.
The document discusses various advanced welding techniques including magnetic arc welding, friction welding, explosive welding, and ultrasonic welding. It provides details on brazing, a process that joins metals without melting them using a filler metal with a melting point above 450°C. The document outlines brazing procedures and techniques, advantages/disadvantages, fluxes used, and induction heating for brazing. It also covers gas welding, arc welding, and the equipment, shielding gases, positions, and safety involved in these processes.
This document discusses various welding and metal joining processes. It describes gas welding (oxy-acetylene welding) where a flame is used to heat and join metal parts. Resistance welding uses electric current to heat and join metals under pressure. Solid state welding techniques like friction and ultrasonic welding join materials without melting them. The document also covers soldering and brazing which use filler metals to join parts through capillary action without melting the base metals.
Gas welding involves burning a combustible gas like acetylene or hydrogen with oxygen to heat and melt metals for joining. Oxy-acetylene welding uses oxygen and acetylene gases to produce a flame reaching 3000-3500°C, melting a filler material and parent metals to join workpieces. Equipment includes gas cylinders, regulators, welding torches, and non-return valves. It has advantages of low cost, ability to weld various metals, and adjustable flame intensity, but disadvantages of lower temperature than arc welding and lack of flux shielding.
Welding is a process used to join metal materials by heating them to the point of melting and allowing them to fuse together and harden. There are several types of welding including electric arc welding, gas welding, resistance welding, friction welding, and robotic welding. The document provides details on the key techniques such as MIG, TIG, oxy-acetylene gas welding and resistance spot welding. It also summarizes the equipment, processes, advantages and applications of each welding method.
Welding is a process that joins materials by heating them to melt or soften them and allowing them to cool, producing a permanent bond. It is used to join metal components in industries like automotive, aerospace, shipbuilding and more. There are several types of welding including arc welding, gas welding, resistance welding, and newer processes like laser beam and electron beam welding. Arc welding, which uses an electric arc to generate heat and join metals, is the most common welding method.
Welding is a process that joins materials by heating them to melt or soften them and allowing them to cool, producing a permanent bond. It is used to join metal components in industries like automotive, aerospace, shipbuilding and structural construction. There are several types of welding processes that differ based on the heat source and temperature used, such as gas welding, arc welding and resistance welding. Welding is a versatile technique for making permanent, strong joints between metal parts.
This document provides information about plasma arc welding (PAW). It defines plasma as ionized gas that is electrically conductive. PAW uses plasma to melt and fuse metals together for welding. There are two variants of PAW: transferred arc mode where the arc is between the electrode and workpiece; and non-transferred mode where the arc is between the electrode and nozzle and heat is carried to the workpiece. PAW allows for deep penetration, uniform welds at high speed without filler material. However, it requires specialized equipment, produces high noise and radiation, and has high gas consumption.
This document provides information about various welding techniques. It discusses that welding joins materials by heating them to suitable temperatures with or without applying pressure. Welding is used to make permanent joints in manufacturing automobiles, aircraft, machinery etc. It then describes different types of welding such as plastic welding, fusion welding, and classifications including arc, gas, resistance welding. Arc welding uses an electric arc and gas welding uses a flame. It provides details about equipment, flames, and advantages and limitations of various welding techniques.
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 to join metal parts in manufacturing. Some key types of welding include arc welding, gas welding, resistance welding, and solid state welding. Welding is used in many industries such as automotive, aerospace, shipbuilding, and construction.
This document provides information on various welding processes and their characteristics. It discusses the following:
- Welding is a process that joins materials through heat, pressure, and metallurgical conditions. Key requirements include a heat source, metal protection/cleaning, and avoiding harmful effects.
- Common welding processes include oxy-fuel welding, arc welding, resistance welding, and solid state welding. Oxy-fuel welding uses a gas flame, arc welding uses an electric arc, and other processes vary in their heat and pressure application.
- Materials like aluminum, cast iron, and stainless steel each have their own challenges for weldability due to properties like thermal conductivity and carbon/alloy content. Proper techniques
Metal Joining Process- Welding, Brazing and SolderingLearnwithus2
The document discusses different metal joining processes including brazing, soldering, and welding. It provides details on:
- Brazing involves melting a higher-temperature filler metal without melting the base metals. Soldering uses a lower-temperature filler metal.
- Welding can involve melting both the filler metal and base metals. Common welding processes discussed are shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding.
- Proper ventilation and safety equipment are important when welding to avoid electrical, fire, explosion, and inhalation hazards.
The document discusses gas welding, specifically oxy-acetylene welding. It describes how oxy-acetylene welding uses oxygen and acetylene gases to generate a flame hot enough to melt and fuse metals. It also discusses the different types of flames (neutral, reducing, oxidizing) used in oxy-acetylene welding and their purposes. Finally, it provides an overview of the equipment used, including oxygen and acetylene cylinders, regulators, hoses, torches, and more.
Welding Processes
Two Categories of Welding Processes
Arc Welding
Resistance Welding
Oxy-fuel Gas Welding
Other Fusion Welding Processes
Solid State Welding
Shielded Metal Arc Welding
Gas Metal Arc Welding
Flux‑Cored Arc Welding
Electro gas Welding
Submerged Arc Welding
Gas Tungsten Arc Welding (GTAW) or TIG
Resistant Welding
Brazing and Soldering
This document provides an overview of gas and arc welding processes. It discusses oxy-acetylene welding in detail, including the different types of welding flames produced (neutral, reducing, oxidizing) and equipment used such as cylinders, regulators, torches, and filler rods. Arc welding processes are also introduced, with oxy-acetylene welding described as a fusion welding technique that uses a gas flame to generate heat and join metals. The document covers advantages and disadvantages of welding in general.
Survey of welding_and_allied_processes_and_oxy-acetylene_weldingHimanshu Khulve
The document provides an overview of welding and allied metal joining processes. It discusses the history of welding, which dates back 3000 years. Various joining methods are described, including soldering, brazing, and welding. Soldering uses a lower melting point filler metal to join thin metals. Brazing is similar but stronger, using brass with a higher melting point. Welding fully fuses metals together permanently. Oxy-acetylene welding and cutting are explained in detail, including equipment, flames, and applications for different metals. The document provides a comprehensive survey of welding techniques and processes.
This document provides information about an oxy-acetylene welding course, including definitions, equipment setup, flame types, welding techniques, brazing, cutting, and safety precautions. The objective is to introduce students to oxy-acetylene welding fundamentals and develop their ability to produce quality welds through progressive steps. It covers topics like cylinder hazards, personal protective equipment, regulator and torch setup, troubleshooting, and maintaining quality welds. General safety precautions are outlined to prevent fires and explosions when welding or cutting.
A high-Speed Communication System is based on the Design of a Bi-NoC Router, ...DharmaBanothu
The Network on Chip (NoC) has emerged as an effective
solution for intercommunication infrastructure within System on
Chip (SoC) designs, overcoming the limitations of traditional
methods that face significant bottlenecks. However, the complexity
of NoC design presents numerous challenges related to
performance metrics such as scalability, latency, power
consumption, and signal integrity. This project addresses the
issues within the router's memory unit and proposes an enhanced
memory structure. To achieve efficient data transfer, FIFO buffers
are implemented in distributed RAM and virtual channels for
FPGA-based NoC. The project introduces advanced FIFO-based
memory units within the NoC router, assessing their performance
in a Bi-directional NoC (Bi-NoC) configuration. The primary
objective is to reduce the router's workload while enhancing the
FIFO internal structure. To further improve data transfer speed,
a Bi-NoC with a self-configurable intercommunication channel is
suggested. Simulation and synthesis results demonstrate
guaranteed throughput, predictable latency, and equitable
network access, showing significant improvement over previous
designs
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
This document discusses different types of welding processes. It begins by defining welding as a process of joining similar or dissimilar metals through the application of heat, with or without pressure and the addition of filler material. It then provides a brief history of welding technology and describes some modern welding techniques. The document goes on to classify welding into two main categories: fusion welding, which joins metals through melting; and pressure welding, which joins metals in their solid state through applied pressure. It provides details on specific fusion and pressure welding methods.
Welding is a process that joins materials by heating them to a temperature that causes melting or softening, with or without the use of pressure or filler material. There are two main types: plastic welding uses pressure to join heated materials, while fusion welding heats materials to a molten state to fuse them together. Oxyacetylene welding uses a flame from burning acetylene and oxygen to heat and fuse metals. It can be used with or without a filler rod and produces temperatures up to 34,000°C, making it suitable for welding steels, aluminum, copper and cast iron.
The document discusses various advanced welding techniques including magnetic arc welding, friction welding, explosive welding, and ultrasonic welding. It provides details on brazing, a process that joins metals without melting them using a filler metal with a melting point above 450°C. The document outlines brazing procedures and techniques, advantages/disadvantages, fluxes used, and induction heating for brazing. It also covers gas welding, arc welding, and the equipment, shielding gases, positions, and safety involved in these processes.
This document discusses various welding and metal joining processes. It describes gas welding (oxy-acetylene welding) where a flame is used to heat and join metal parts. Resistance welding uses electric current to heat and join metals under pressure. Solid state welding techniques like friction and ultrasonic welding join materials without melting them. The document also covers soldering and brazing which use filler metals to join parts through capillary action without melting the base metals.
Gas welding involves burning a combustible gas like acetylene or hydrogen with oxygen to heat and melt metals for joining. Oxy-acetylene welding uses oxygen and acetylene gases to produce a flame reaching 3000-3500°C, melting a filler material and parent metals to join workpieces. Equipment includes gas cylinders, regulators, welding torches, and non-return valves. It has advantages of low cost, ability to weld various metals, and adjustable flame intensity, but disadvantages of lower temperature than arc welding and lack of flux shielding.
Welding is a process used to join metal materials by heating them to the point of melting and allowing them to fuse together and harden. There are several types of welding including electric arc welding, gas welding, resistance welding, friction welding, and robotic welding. The document provides details on the key techniques such as MIG, TIG, oxy-acetylene gas welding and resistance spot welding. It also summarizes the equipment, processes, advantages and applications of each welding method.
Welding is a process that joins materials by heating them to melt or soften them and allowing them to cool, producing a permanent bond. It is used to join metal components in industries like automotive, aerospace, shipbuilding and more. There are several types of welding including arc welding, gas welding, resistance welding, and newer processes like laser beam and electron beam welding. Arc welding, which uses an electric arc to generate heat and join metals, is the most common welding method.
Welding is a process that joins materials by heating them to melt or soften them and allowing them to cool, producing a permanent bond. It is used to join metal components in industries like automotive, aerospace, shipbuilding and structural construction. There are several types of welding processes that differ based on the heat source and temperature used, such as gas welding, arc welding and resistance welding. Welding is a versatile technique for making permanent, strong joints between metal parts.
This document provides information about plasma arc welding (PAW). It defines plasma as ionized gas that is electrically conductive. PAW uses plasma to melt and fuse metals together for welding. There are two variants of PAW: transferred arc mode where the arc is between the electrode and workpiece; and non-transferred mode where the arc is between the electrode and nozzle and heat is carried to the workpiece. PAW allows for deep penetration, uniform welds at high speed without filler material. However, it requires specialized equipment, produces high noise and radiation, and has high gas consumption.
This document provides information about various welding techniques. It discusses that welding joins materials by heating them to suitable temperatures with or without applying pressure. Welding is used to make permanent joints in manufacturing automobiles, aircraft, machinery etc. It then describes different types of welding such as plastic welding, fusion welding, and classifications including arc, gas, resistance welding. Arc welding uses an electric arc and gas welding uses a flame. It provides details about equipment, flames, and advantages and limitations of various welding techniques.
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 to join metal parts in manufacturing. Some key types of welding include arc welding, gas welding, resistance welding, and solid state welding. Welding is used in many industries such as automotive, aerospace, shipbuilding, and construction.
This document provides information on various welding processes and their characteristics. It discusses the following:
- Welding is a process that joins materials through heat, pressure, and metallurgical conditions. Key requirements include a heat source, metal protection/cleaning, and avoiding harmful effects.
- Common welding processes include oxy-fuel welding, arc welding, resistance welding, and solid state welding. Oxy-fuel welding uses a gas flame, arc welding uses an electric arc, and other processes vary in their heat and pressure application.
- Materials like aluminum, cast iron, and stainless steel each have their own challenges for weldability due to properties like thermal conductivity and carbon/alloy content. Proper techniques
Metal Joining Process- Welding, Brazing and SolderingLearnwithus2
The document discusses different metal joining processes including brazing, soldering, and welding. It provides details on:
- Brazing involves melting a higher-temperature filler metal without melting the base metals. Soldering uses a lower-temperature filler metal.
- Welding can involve melting both the filler metal and base metals. Common welding processes discussed are shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding.
- Proper ventilation and safety equipment are important when welding to avoid electrical, fire, explosion, and inhalation hazards.
The document discusses gas welding, specifically oxy-acetylene welding. It describes how oxy-acetylene welding uses oxygen and acetylene gases to generate a flame hot enough to melt and fuse metals. It also discusses the different types of flames (neutral, reducing, oxidizing) used in oxy-acetylene welding and their purposes. Finally, it provides an overview of the equipment used, including oxygen and acetylene cylinders, regulators, hoses, torches, and more.
Welding Processes
Two Categories of Welding Processes
Arc Welding
Resistance Welding
Oxy-fuel Gas Welding
Other Fusion Welding Processes
Solid State Welding
Shielded Metal Arc Welding
Gas Metal Arc Welding
Flux‑Cored Arc Welding
Electro gas Welding
Submerged Arc Welding
Gas Tungsten Arc Welding (GTAW) or TIG
Resistant Welding
Brazing and Soldering
This document provides an overview of gas and arc welding processes. It discusses oxy-acetylene welding in detail, including the different types of welding flames produced (neutral, reducing, oxidizing) and equipment used such as cylinders, regulators, torches, and filler rods. Arc welding processes are also introduced, with oxy-acetylene welding described as a fusion welding technique that uses a gas flame to generate heat and join metals. The document covers advantages and disadvantages of welding in general.
Survey of welding_and_allied_processes_and_oxy-acetylene_weldingHimanshu Khulve
The document provides an overview of welding and allied metal joining processes. It discusses the history of welding, which dates back 3000 years. Various joining methods are described, including soldering, brazing, and welding. Soldering uses a lower melting point filler metal to join thin metals. Brazing is similar but stronger, using brass with a higher melting point. Welding fully fuses metals together permanently. Oxy-acetylene welding and cutting are explained in detail, including equipment, flames, and applications for different metals. The document provides a comprehensive survey of welding techniques and processes.
This document provides information about an oxy-acetylene welding course, including definitions, equipment setup, flame types, welding techniques, brazing, cutting, and safety precautions. The objective is to introduce students to oxy-acetylene welding fundamentals and develop their ability to produce quality welds through progressive steps. It covers topics like cylinder hazards, personal protective equipment, regulator and torch setup, troubleshooting, and maintaining quality welds. General safety precautions are outlined to prevent fires and explosions when welding or cutting.
Similar to Welding Processes and gas welding.pptx (20)
A high-Speed Communication System is based on the Design of a Bi-NoC Router, ...DharmaBanothu
The Network on Chip (NoC) has emerged as an effective
solution for intercommunication infrastructure within System on
Chip (SoC) designs, overcoming the limitations of traditional
methods that face significant bottlenecks. However, the complexity
of NoC design presents numerous challenges related to
performance metrics such as scalability, latency, power
consumption, and signal integrity. This project addresses the
issues within the router's memory unit and proposes an enhanced
memory structure. To achieve efficient data transfer, FIFO buffers
are implemented in distributed RAM and virtual channels for
FPGA-based NoC. The project introduces advanced FIFO-based
memory units within the NoC router, assessing their performance
in a Bi-directional NoC (Bi-NoC) configuration. The primary
objective is to reduce the router's workload while enhancing the
FIFO internal structure. To further improve data transfer speed,
a Bi-NoC with a self-configurable intercommunication channel is
suggested. Simulation and synthesis results demonstrate
guaranteed throughput, predictable latency, and equitable
network access, showing significant improvement over previous
designs
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
This study Examines the Effectiveness of Talent Procurement through the Imple...DharmaBanothu
In the world with high technology and fast
forward mindset recruiters are walking/showing interest
towards E-Recruitment. Present most of the HRs of
many companies are choosing E-Recruitment as the best
choice for recruitment. E-Recruitment is being done
through many online platforms like Linkedin, Naukri,
Instagram , Facebook etc. Now with high technology E-
Recruitment has gone through next level by using
Artificial Intelligence too.
Key Words : Talent Management, Talent Acquisition , E-
Recruitment , Artificial Intelligence Introduction
Effectiveness of Talent Acquisition through E-
Recruitment in this topic we will discuss about 4important
and interlinked topics which are
Accident detection system project report.pdfKamal Acharya
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
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Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...PriyankaKilaniya
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
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2. Fabrication Process
• Joining of 2 metals in order to make into single component.
• Types of Joints:
1. Temporary Joints – Nuts, Bolts, etc,.
2. Semi-permanent Joints – Riveted joints etc,.
3. Permanent Joints – Welded Joints.
3. Welding Process
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.
Example:
• Butt joints, Lap joints, Cotter joints, Edge joints etc,.
4. Advantages:
• Permanent joint is produced, which becomes an integral part
of work piece.
• Joints can be stronger than the base metal if good quality filler
metal is used.
• Economical method of joining.
• It is not restricted to the factory environment.
5. Disadvantages:
• Labor cost is high as only skilled welder can produce sound
and quality weld joint.
• Creates the problem in dissembling if the sub-component is
required.
• Hazardous fumes and vapours are generated during welding.
6. • Applications of welding processes
General applications:
• Fabrication of pressure vessels, LPG cylinders, Transport
tankers (oil, water, milk, chemicals), bridges, building
structures, aircraft and space crafts, railway coaches,
electrical, electronic and defense industries, laying of pipe
lines and railway tracks and nuclear installations.
7. Specific Applications:
• Automobiles (Resistance welding),
• Rail Joints in railways (Thermit welding),
• Aerospace and nuclear reactors (TIG welding),
• Ship work (Submerged arc welding),
• Joining of metals like stainless steel, aluminum and
magnesium (MIG welding).
8. Types of Welding processes
• Plastic Welding or Pressure Welding
The piece of metal to be joined are heated to a plastic state
and forced together by external pressure.
Example:
Forge Welding, Spot Welding, Seam Welding, Projection
Welding, Butt (or) Upset, Thermit, Friction, Ultrasonic Welding
etc,.
9. • Fusion Welding or Non-Pressure Welding
The material at the joint is heated to a molten state and
allowed to solidify.
Example:
Electron Beam Welding, Laser Welding, Soldering, Brazing, Arc
Welding, Gas Welding, Resistance welding.
10. Classification of welding processes
• Gas Welding
• Oxy-acetylene
• Air-acetylene
• Oxy-hydrogen
• Arc welding
Carbon arc
Metal arc
Metal inert gas
Tungsten inert gas
Plasma arc
Submerged arc
Electro-slag
• Resistance Welding
• Butt
• Spot
• Seam
• Projection
• Percussion
• Thermit Welding
• Solid State Welding
• Friction
• Ultrasonic
• Diffusion
• Explosive
• Newer Welding
• Electron-beam
• Laser
• Related Process
• Oxy-acetylene cutting
• Arc cutting
• Hard facing
• Brazing
• Soldering
11. Gas Welding
• A group of welding processes where in coalescence is
produced with a gas flame with or without use of pressure
and filler material.
• The temperature generated during the process is 33000c.
12. Gases
• Oxyacetylene welding process uses two principal gases
• Oxygen and acetylene
• Other gases can be used for cutting and heating
• Propane
• Natural gas
• Mapp® gas
5 -
12
13. Various Fuel Gas Efficiencies
5 -
13
Normal
Btus Usable heat Flame Oxygen velocity
Fuel Gas (ft3) (s/ft2) temp. per ft3 of fuel (ft/s)
Acetylene 1433 12,700 5,420ºF 1.04 17.7
Mapp®2 2381 5,540 5,301ºF 2.4 7.9
Propane 2309 5,500 5,190ºF 4.00 11.9
Natural gas3 918 5,600 5,000ºF 1.50 15.2
Hydrogen 275 7,500 4,600ºF 0.25 36
14. Acetylene
• Most widely used of all fuel gages
• Both welding and cutting
• Generated as result of chemical reaction that takes place when
calcium carbide comes in contact with water
• Tests show oxyacetylene flame temperatures up to approximately
6,300ºF
• Very rapid rate of preheating
• Burns with smoky flame, gives off carbon, has peculiar odor
5 -
14
15. Characteristics of an Effective Welding
Fuel Gas
• High flame temperature
• High rate of flame propagation
• Adequate heat content
• Minimum chemical reaction of flame with base and filler metal
5 -
15
Acetylene most closely matches all these
requirements and used for welding purposes.
18. • The oxyacetylene welding process uses a combination of
oxygen and acetylene gas to provide a high temperature
flame.
• Acetylene produces high temperatures of about 32000C.
• The chemical reaction involved in burning of acetylene is
2C2H2 + 5O2 → 4CO2 + 2H2O + Heat
19. • During the welding, heat from the flame is concentrated on
the joint edges until the metal melts and starts to flow.
• When the molten metal from both sides melts it starts to fuse.
• when the metal cools down the two parts become
Permanently joined.
20. • Acetylene can be supplied in two ways:
1. High pressure system.
2. Low pressure system.
High Pressure Welding
• oxygen and acetylene are stored at high pressure from their
respective high pressure cylinders.
• Oxygen is normally stored in strong cylinder at a pressure
ranging from 13.8 to 18.2 MPa.
21. • Acetylene is highly explosive, if stored at a pressure more than
200 kPa, it becomes very unstable and likely to explode.
• Hence acetylene must be carefully stored in a strong cylinder
filled with 80 to 85% of porous material [Calcium Silicate] and
then filled with acetone.
22. • Acetone can absorb up to 420 times of its volume of acetylene
at a pressure of 1.75 MPa.
• This helps in storing acetylene at a much higher pressure than
permitted when it is in the free form.
23. Low Pressure Welding
• In low pressure welding, oxygen is supplied from high pressure
cylinder but acetylene is generated by the action of water on
calcium carbide and supplied at low pressure.
• CaC2 + 2H2O →C2H2 + Ca (OH)2
25. • It consists of a cylinder partially filled with water.
• The calcium carbide is stored in a hopper at the top of the
generator.
• When the calcium carbide reacts with water acetylene is
formed.
• The produced acetylene is supplied to the blow pipe at a low
pressure from a gas holder incorporated in the generator.
26. • Acetylene is cleaned by passing it through a purifier.
• A pressure regulating valve controls the flow of calcium
carbide into water, depending on the requirement of the
pressure of acetylene in the generator.
• To prevent the possibility of explosion (or) air blowing back
into the generator, a back pressure valve is arranged between
the blow pipe and the gas holder.
27. Safety Precautions in Gas Welding
• Always handle the gas cylinders with care.
• The adjusting screw on the regulator must be fully released
before opening a cylinder valve.
• Never use matchsticks for lighting a torch.
• Never lubricate the regulator valve with oil or grease, it may
cause explosion.
• Always use goggles while working.
28. • Acetylene cylinders should be stored in up right position.
• Do not open acetylene cylinders near sparks or fire.
• Never remove torch tips with pliers.
• The cylinder should be leak proof.
• Always use protective caps over the valves.
• Keep in mind the location of the fire extinguishers.
29. Types of Flames
• The type of flame produced depends upon the
ratio of oxygen to acetylene in the gas mixture
which leaves the torch tip.
• There are three distinct types of oxy-acetylene
flames, usually termed:
• Neutral
• Carburizing (or “excess acetylene”)
• Oxidizing (or “excess oxygen”)
30. Neutral Flame:
• Approximately equal amounts of O2 & C2H2 are burned (1.01
to 1.14).
• No chemical effect on the metal being welded.
• It will not oxidize the weld metal;
• it will not cause an increase in the carbon content of the weld
metal.
• Recognized by two sharp zones.
1. Inner white cone,
2. Outer blue flame.
31. • Two thirds of the heat is generated in the inner core.
• The products of the primary combustion, CO and H2, react
with O2 from the surrounding air and form CO2 and H2O.
• One third of the heat is generated in the outer flame.
• The area where this secondary combustion takes place is
called the outer envelope.
• Flame temperatures can reach upto 3,2000C.
32.
33. Carburizing Flame
• It is formed when C2H2 is supplied more than O2.
• The approximate ratio of O2 to C2H2 is 0.82 to 0.95.
• Recognized by three zones.
1. Inner white cone,
2. Outer blue flame,
3. Intermediate flame feather.
• Length of intermediate flame indicates presence of excess
acetylene.
34. • Unburnt carbon present in it goes into the weld pool and the
metal appears to boil.
• Used for high carbon steels, cemented carbides etc,.
• Flame temperature can reach upto 32000C.
35. Oxidizing Flame:
• It is formed when O2 is supplied more than C2H2.
• The approximate ratio of O2 to C2H2 is 1.15 to 1.17.
• Recognized by two sharp zones.
1. Inner white cone with sharp edge,
2. Outer blue flame.
• It will oxidize or ”burn” some of the metal being welded.
• Used for non-ferrous alloys.
• Highest temperatures upto 34000C can be achieved.
36.
37. OXY-ACETYLENE WELDING
TECHNIQUES
On the basis of torch movement there are two types of
techniques.
1. Leftward / Forward Technique.
2. Rightward / Backward Technique.
38. LEFTWARD / FORWARD
TECHNIQUE
• Torch moved from right to left.
• Blow pipe – right hand.
• Welding rod – left hand.
• Blow pipe angle of 600 to 700.
• Welding rod angle of 300 to 400.
• Preheats the metal ahead of the molten pool.
39.
40. RIGHTWARD / BACKWARD
TECHNIQUE
• Torch moved from left to right.
• Blow pipe – right hand.
• Welding rod – left hand.
• Blow pipe angle of 400 to 500.
• Welding rod angle of 300 to 400.
• Cooling time is high.
• Welding speed increases by 20-25%.
• Fuel consumption decreases by 15-25%.
• Used for thicker materials.
41.
42. Advantages of OAW:
• Equipment is cheap as compared to other welding process.
• It can be used for welding of all types of metals.
• Maintenance of equipment is very less.
• It is a portable process.
• It can be used for cutting metals of small thickness.
• It is specially used for sheet metal work.
43. Disadvantages
• It takes long time for heating the job as compared to the arc
welding.
• The heat affected area is more.
• This is prone to corrosion and brittleness.
• Gasses are expensive and difficult to store.
44. Applications
• Oxy-acetylene welding is particularly used for sheet metal
work.
• All the metals can be welded with proper filler metals.
• Same equipment may be used for cutting purposes.