For a cross section of a typical fusion-welded joint: (a) list all types of different zones in the joint and (b) Explain the different types of grain structure that formed during welding of metal.

Q: Outline the principle of Ultra Sonic testing for checking deeply imbedded defects in a welded joint.

A: Ultra sonic testing is one the non destructive technique used for testing the defects inside a solid…

Q: A gas metal arc welding test is performed to determine the value of melting factor f₂ for a certain…

A: Gas metal arc welding is a semi automatic or automatic arc welding process which uses a consumable…

Q: (b) Two flat aluminum sheets (each 1 mm thick) are being spot welded by use of a current of 5000A…

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Q: Why is cost a consideration in joint design?

A: The joint design is one major way to control welding cost. If any changes in the design can reduce…

Q: heat treatment is applied in welding processes and what its importance

A: Heat treatment in welding operation :

Q: What is a cold solder joint? Identify its causes, its appearance, and the means of correction.

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Q: Explain the residual stress in weldin operations. What kind of geometries or machine elements are…

A: Solution:

Q: 8 mm thick plates of S275 steel will be welded by SMAW, SAW, GTAW, GMAW and PAW processes. Evaluate…

A: Data given-  8 mm thick plates of S275 steel needs to be welded  Processes -  SMAW, GTAW, GMAW  PAW…

Q: Describe the three applications of each Tee and Edge joint in welding

A: Edge welding Joints are frequently applied to sheet metal parts that have flanging edges or are…

Q: Explain how a cylindrical joint can be practically realised?

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Q: What are the parameters of inert gas welding process?

A: The parameters for the inert gas welding process are as follows: Welding Current Welding Voltage…

Q: Explain why fusion welding with non-consumable electrodes is advantageous, compared to consumable…

A: The two advantages of non-consumable electrode used in fusion welding compared to consumable…

Q: Are the Expansion joints, used to mitigate thermal stress in materials?

A: Expansion joint It is a configuration developed to join the sections together while efficiently…

Q: What is metal inert gas welding and the effect of metal inert gas welding process parameters?…

A: what is metal inert gas welding?? answer-In this type of welding consumable type of electrode used.…

Q: A plate of Low carbon steel AISI 1023 is to be welded by SMAW, thickness is equal to 19mm, total…

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Q: What do you understand by the term welded joint? How it differs from riveted joint?

A: Welding is the process of joining two pieces of metal together by forming a metallurgical bond.  The…

Q: Mention the main groups of processes that are contained in fusion welding.

A: The group of process contained in the fusion welding is as follows: 1. Induction welding: In…

Q: 5) Which of the following welding processes combination suitable for dissimilar joining of Plastic…

A: here, Resistant welding Use only for metal which can conduct the electricity. As far as plastic is…

Q: why Filler metals are used in fusion welding process?

A: Filler metal Filler metal is a metal added in the making of a joint through welding, brazing, or…

Q: Calculate the heat input of welded Truss by assuming the welding current is 180 amperages, its arc…

A: Given data,  u= 7cm/min= 1.167 mm/s  V= 23 volt  I=180 amp.

Q: What are the possible defects of MIG welding on stainless steels?

A: Metal Inert Gas Welding Metal Inert Gas Welding uses consumable electrode and it is used to join…

Q: A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and…

A: Option A is the correct answer.

Q: What are the advantages of MIG welding on stainless steels?

A: MIG : (Metal Inert Gas) It is a type of arc welding. MIG welding is carried out by placing an arc…

Q: 9. For spot welding of two steel sheets (base metal) each of 3 mm thickness, welding current of…

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Q: Calculate the heat input of welded Truss if the welding current is 215 amperages, its arc voltage is…

A: Given, Current, I=215AVoltage,V=21VWelding travel speed,v=15cm/minTo calculate,Heat input of welded…

Q: Please explain the significance of residual stress in welded structures and the ways to deal with…

A: Welding is a process in which materials join together to form assemblies of a system. Due to…

Q: What are the disadvantages of MIG welding on stainless steels?

A: Before answering above question, we should know the physical and chemical properties of stainless…

Q: A gas tungsten arc welding operation is performed using a current 350 A and arc voltage of 25 V at a…

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Q: 8) The correct ways to control liquation cracking tendency in fusion weld joint are I. Use of filler…

A: The way of arranging and control liquation cracking tendency in fusion is iii, iv and v

Q: When steel is joined using arc welding, only the liquid fusion zone must be protected by a gas or…

A: A fabrication process where two or maybe more parts are fused together with the help of heat, the…

Q: In your own words, describe the ultrasonic welding process as applied for polymer materials and…

A: Ultrasonic welding, for thermoplastic infusion shaped components, may be a process that…

Q: why is arc shielding requried during arc welding ? how is the arc shielding accomplshed? provide the…

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Q: What effect does the end shape of the tungsten have on its own welding performance?

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Q: what  is ultrasonic welding? dicuss the mechanism of this process. what is the main limitaion of…

A: Ultrasonic welding is a solid-state welding process in which we produce  weld by local application…

Q: A gas tungsten arc welding operation is performed using a current 140 A and arc voltage of 15 V at a…

A:

Q: Write down the solid state welding methods in articles; write the principle, usage areas, advantages…

A: Solid-State Welding is a process where two workpieces are joined under a pressure that ensures close…

Joining Processes

It is the process of permanent or temporary joining of two metal pieces with the help of heat or pressure. Two metal parts are assembled by applying an energy source for the formation of a single unit. The obtained joined metals cannot be fragmented easily with the application of any force.