If you need narrow deep penetration weld for heavv base metal, which type of current polarity you will use with DC current?

Q: Hard soldering of metals can be done in the melting point temperature range of O 183°C-212°C…

A: Hard solders are used for brazing, and melt at a higher temperatures,alloy of copper with zinc or…

Q: 3) Epitaxial solidification occurs during Autogenous welding Welding with dissimilar fillers…

A: The solid particles of melt require heterogeneous nucleation. where

Q: 2) The loss of strength in HAZ of weld joints of work hardened Al alloys can be reduced by

A: Given: To determine the correct option Welding is a process of joining two similar metals with the…

Q: What does liquid-solid phase bonding mean and in which cases is it preferred over welding? What does…

A: The liquid-solid phase bonding is a joining technique that has been used to join a variety of…

Q: In flux-cored arc welding process, the type of electrode is a; * O Welding rod O Welding wire O…

A: Concept: Flux cored arc welding process is a arc welding process in which heat for welding process…

Q: Difference in solubility of gases in molten and solid state of metal during welding promotes Cracks…

A:

Q: Why is argon the most commonly used shielding gas for GTA welding?

A: Argon is the used as a shielding gas for GTA welding because as we know argon is an inert gas and…

Q: Describe the potential hazard in the following picture in one paragraph?

A: Welding is a joining process in which metals, or sometimes plastics, are heated, melted and mixed to…

Q: Research on the following:  a. What is a GMAW process? b. Specific advantage of GMAW process. c.…

A: To find :  a. What is a GMAW process?              b. Specific advantage of GMAW process.…

Q: Which one of the following arc welding processes produces the highest temperatures? * O SAW O CAW O…

A: It is asked that which arc welding can produce high temperature. SAW - it is submerged arc welding…

Q: Explain the process of thermite welding with neat sketch. Write its applications.

A:

Q: What two units are used to show the minimum shearstrength of a spot weld?

A: Resistance welding comes in the form of spot welding. One of the simplest and quickest methods of…

Q: 33- Which one of the followings is not used for heating the joining materials for soldering and…

A:

Q: (Textbook: page 51, problem 12) How can machinery parts and pipeline welds be tested for flaws…

A: THESE TESTS LIKE X-RAYS AND HYDROSTATIC TESTS ARE NON DESTRUCTIVE TESTS. THE BASIC GOAL IS TO…

Q: some of the factors that influence the cost of making a weldment

A: Various factors affecting the cost of making a weldment: 1) The type of equipment used. 2) Required…

Q: Provide a general description of electric arc furnace used in Industrial Manufacturing of Steel

A: following is the answer to the above problem

Q: In flux-cored arc welding process, the type of electrode is a; * O Welding rod Welding wire O…

A: Flux cored is an arc welding process. that uses a tubular wire electrode with flux filled inner…

Q: List five advantages of the modulated current andpulsed-arc metal transfer process.

A: The basic Metal inert gas welding process includes three distinctive process techniques: short…

Q: Why must cast iron weld metal be ductile

A: Cast iron is the alloy of carbon and iron. Cast iron has high hardness due to presence of high…

Q: 8) High chromium content in the austenitic stainless steel welds generally leads to Reduction in…

A: High chromium content is austenitic steel can lead to oxidation at high temperatures. The presence…

Q: 12- Brazing and soldering are attractive comparing to welding for some situations: I. the metals…

A: It is required to determine in which situation brazing and soldering is used

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: elding gas have on some rutil

A: given: What benefits does adding an externally supplied shielding gas have on some rutile based…

Q: temperature

A: An I-beam made of 4140 steel is heat treated to form tempered martensite. It is then welded to a…

Q: 62. Silver is used as filler metal in soldering process. Select one: True False

A: Soldering is a process in which base material components are joined together by filler material…

Q: ndividual weld nuggets formed are s to form a sealed seam. The powe ated that goes into the…

A: given:thickness t=5mmE=2.9J/mm3current I=6000At=0.3secdw=6mmtw=3mm

Q: In brazing process the joint strength is a welded joint. * generally Equal to Larger than None of…

A: There are different types of weddings like Gas wells, Arc welding , Chemical welding etc.. The…

Q: The strength in the weld zone of an age-hardening aluminium alloy is often higher than in the heat…

A: particle that does not dissolve might transform into equilibrium phase instead , this is more likely…

Q: 1) laser micro-welding technique is used to weld transparent polymers without the use of any…

A: TWIST ("Transmission Welding by Incremental Scanning Technique") is a  micro welding technique where…

Q: 4. Is a fire hydrant more likely to be cast or forged? Why?

A: Is a fire hydrant more likely to be casted or forged? The fire Hydrant are more likely to be Casted,…

Q: How is a flux cored arc welding (FCAW) electrode wire different from a gas metal arc welding (GMAW)…

A: It is required to differentiate between FCAW and GMAW electrode

Q: why is the fca welding process not used for open root critical welds

A: Critical welds are the welds whose failure could be a disaster in terms of loss of property or human…

Q: What type(s) of bonding would be expected for each of the following materials: solid xenon, calcium…

A: Bonding of Materials: There are basically three types of material bonding. These include ionic,…

Q: If the base metal thickness is 3.2 mm, what will be tip size of the torch and what are acetylene and…

A: If the base metal thickness is 3.2 mm The tip size of the torch is 1/32" The acetylene pressure =…

Q: Explain with neat sketch, “Galvanizing” heat treatment process

A: As per Given question  We have explain galvanizing heat treatment process

Q: 4) Flux coatings in SMAW electrode helps in

A: Solution:

Q: A. In arc welding, what is the importance of heat effected zone in producing a crack free weld?

A: Concept: 1.In arc welding, the electrode is cathode and the workpiece is anode.  2.When power supply…

Q: Describe different types of primary bonding with neat sketches.

A: There are three types of primary bonds. (1) Ionic bonds: It is a type of bond which is formed due to…

Q: Definition of the picture ? The material formed is the name of the metal that has been corroded ?…

A: 1) The picture shows the corrosion of the hexagonal head Bolt 2)Generally iron oxide material…

Q: In one type of welding, electric charge flows between the welding tool and the metal pieces that are…

A: Arc Welding is the process by which two pieces of metal are joined together by the use of electrical…

Corrosion control methods

Corrosion may be defined as the method in which metals are attacked on their exteriors by gases existing in the atmosphere, converting them to their oxides, nitrides, sulfides, etc.