6 Compare between the weld decay Attack and Knife-Line Attack.

Q: TIG welding standard example

A: Tungsten Inert Gas (TIG) welding, also known as Gas Tungsten Arc Welding (GTAW), is a type of arc…

Q: A GTAW operation is performed on low carbon steel, whose unit melting energy is 10.3 J/mm3. The…

A: Given data: η1=0.7η2=0.65E=22 VI=135 AEm=10.3 J/mm3v=5 mm/s Need to determine the cross-sectional…

Q: 12)In resistance spot welding process the time between pressure application and weld is called:

A: Solution:

Q: 10)Which of the following is a technique to, minimize the distortion in a large weld components? a.…

A: Weld distortion is caused by the expansion and contraction of the weld metal and surrounding base…

Q: Solidification cracking in weldments occurs at 1) moderate temperature 2) very high temperature 3)…

A: Given :-  Solidification cracking in weldments occurs at 1) moderate temperature 2) very high…

Q: 4. Define welding?

A: As per bartleby guidelines we are allowed to solve only 1st question if multiple questions are…

Q: In your own words, explain thoroughly in 3 to 5 sentences the cause/s of the weld defect below and…

A: Transverse Shrinkage:- Transverse shrinkage is a type of distortion in weilding defect that occurs…

Q: esponse. Quèstion 13 In 'reverse polarity' of arc welding O A. Electrode is connected to + and most…

A: What happened in reverse polarity welding

Q: 6) In the given Fig. 2, the butt-welded joint is subjected to uniaxial tensile load of 10 kN, with…

A: Given data: Load = 10 KN h= 5 mm L= 100 mm Need to determine the maximum stress.

Q: What is the cross-sectional area of a V-groove weld that is 6mm wide and 8 mm deep on a 10-mm thick…

A:

Q: 5 Which of the following appropriate methods are adopted for reducing distortion in weldments?

A: When materials are welded together, because of the uneven cooling the stresses are induced in the…

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: the net heat input per unit length of the weld.

A: Given data;  Gas tungsten arc welding operation is performed using Voltage=30 V Current=520 A…

Q: 6) Residual stresses in the GMAW joint can be reduced through O Use of low coefficient of thermal…

A: Residual stresses in the GMAW joint can be reduced through Increasing the weld metal volume

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: What is welding and what type of fastening is it? Draw any four elementary weld symbols with its…

A: Solution:

Q: Why should convex weld faces be avoided?

A: Excessive Convexity This discontinuity can produce a notch effect in the welded area and,…

Q: 12) For welding thinner sheets using: FCAW process, the contact tip to work distance (CTWD) should…

A: CTWD- It is the distance between the contact tip and the work. It has to be consistent for better…

Q: Why are all welds not inspected to the same level orstandard?

A: Information Provided: Not all welds undergo the same level or standard of inspection. Not all welds…

Q: What is the minimum acceptance criteria for porosity for visual inspection of lap welds?

A: Lap welding: When two metals are attached in a overlapping pattern on top of each other then this…

Q: is the melting temperature range of soft soldering. a. 183°C-212°C b. 500°C-650°C c. 150°C-175°C d.…

A: Soft solder regularly incorporates a softening point run of 90 to 450 °C (190 to 840 °F; 360 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: 24. Why is it important not to strike the arc outside of the weld joint?

A: Welding is a fabrication process in which two similar metals or dis similar metal are joined with…

Q: 7) Which type of FSW technique prevents plate thinning and hooking at advancing side of the weld…

A: Weld thinning and hooking in friction stir welding has been an inherent issue which affects the…

Q: What bead pattern is best for overhead welds?

A: Vertical up overhead smaw is best bead pattern for overhead welding. While you're in the vertical…

Q: What is the first weld bead of a multiple pass weld called?

A: Root Pass  is the first weld bead placed in the weld joint in a multi-pass weld.

Q: 4) Which material cannot be weld using friction stir welding process?

A: Answer is Gold.

Q: How many categories of weld are associated with Weld symbols

A: There are so many categories of welds, these are given as with symbols, (1) Butt weld between plates…

Q: 6) How pressure exerted on the weld joint depends on resistance at the point of contact? At high…

A: Solution:

Q: Why is a prototype custom fabricated before producing multiple weldments

A: Why is a prototype custom fabricated before producing multiple weldments

Q: Explain minimum 3 types of welding position for groove and fillet weld?

A: WELDING  Welding is a manufacturing method through which two or more components are joined by heat,…

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: Arc welding is an example of pressure welding. Select one: True False

A: False

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: If you need narrow deep penetration weld for heavv base metal, which type of current polarity you…

A: Solution:

Q: What may happen if the GMA welding electrode is allowedto strike the base metal outside of the…

A: given; What may happen if the GMA welding electrode is allowed to strike the base metal outside of…

Q: Q2B/ Answer any one of the following: 1. Define weld decay and how can be prevented

A:

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: Sketch 2 NDT symbols illustrating different methods that can be used to indicate multiple test…

A: Solution:

Q: Q6. Identify four(4) types of defect in welding. How to minimize these defects defects minimize

A: Hot cracks. These can occur during the welding process or during the crystallization process of the…

Q: 5. The temperature of the hard soldering or silver brazing is 842F°. (a) above (b) equal (c) under

A: The temperature of the hard soldering or silver brazing is about 1145°F to 1650°F

Q: What will be the notation of throat length of a fillet weld

A: Given data⇒ Fillet weld Throat length

Q: 14)The name of the welds assembly shown Fig.3 is a

A: Explanation The given assembly are jointed by double transverse fillet weld.In the transeverse…

Q: if a weldment is heated to correct distort from welding, the maximum localized he

A: if a weldment is heated to correct distortion from welding, the maximum localized heat shall not…