In GTAW the welding cable is connected to the tungsten electrode through a water-cooled copper contact tube, as shown in picture below. Why is the tube positioned near the lower end of the electrode instead of the top?

Q: A gas tungsten arc welding operation is performed using a current 650 A and arc voltage of 10 V at a…

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Q: Discuss in details different type of resistance welding with the help of best diagram

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Q: a) Why is good eye protection far more important when arc welding rather than gas welding? b)…

A: Good eye protection far more important when arc welding rather than gas welding because arc welding…

Q: 1. Name the three main types of welding processes.

A: Solution:   Note: Dear Student! As per our guidelines, we are only allowed to answer a single…

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: Discuss the Quality of flame required to do gas welding and give any four advantages of gas welding.

A: Quality of flame used in gas welding

Q: accuracy of the finished workpiece in welding works?  Is it possible to have an accurate workpiece…

A: INTRODUCTION  Welding desertsWeld deformities, for example, breaking and porosity greatly affect the…

Q: a). Explain the three types of flames produced in the gas welding process. b). Explain the soft…

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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: Explain the welding method used for welding more than 25 mm thickness mild steel plates with neat…

A: Solution:

Q: Q2) Answer the following questions:- (A) What is the Flux? Explain the purpose and the uses of the…

A: Welding is the process in which two metals or materials are joint with each other. In this process…

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

A: Given data;  Find net heat input per unit length of the weld ? Where,  current=120 A   voltage=10 V…

Q: When welding using Oxyacetylene method on medium or high carbon steels, which type of flame is…

A: When welding using Oxyacetylene method on medium or high carbon steels, which type of flame is…

Q: Question No.14. Backhand technique used in gas welding is suitable for joining Thin sheets O…

A: Backhand welding: It is a welding technique under which the worker welds the objects from left to…

Q: 4) In the non-transferred plasma arc welding process, arc is struck between the tungsten electrode…

A: Plasma Arc Welding (PAW) is an arc welding process similar to gas tungsten arc welding(GTAW).

Q: alculate the electrode tip diameter if the thickness of low carbon steel type of material is 1.2mm.

A: Given:- Electrode tip t=1.2mm=0.0472441 To find: Tip diameter

Q: Which of the following processes are classified as fusion welding: (A) Arc welding (B) Oxyfuel gas…

A: Fusion weldingFusion welding is a  welding processes in which a heat source generates sufficient…

Q: Thermit, used in thermit welding is, a mixture of: O Charcoal and aluminum Charcoal and iron oxide O…

A: Thermit is the raw material used in connecting conductors and provide mechanical strength and…

Q: Using illustrations mention the types of flames in the Oxyacetylend Welding.

A: Oxyacetylene weld is a gas weld process where acetylene is burn with the help of oxygen to produce…

Q: When the molten metal is transferred from the electrode to the weld zone, it can be shielded from…

A: In electric arc welding

Q: ace of nitr

A: introduction: Nitrogen is employed in some heat treatments and can be used as a shielding gas for…

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

A: Given data;  A gas tungsten arc welding operation is performed using;  current,c= 300 A  Voltage,v=…

Q: In submerged arc welding, an arc is produced between a; Coated metal electrode and the work Two…

A: To select the correct option.

Q: Welding is a common method to join separate parts of metal together. Briefly describe the conditions…

A: Several industrial and production operations rely heavily on the welding process. Metals of all…

Q: the net heat input

A: Given data;  Current=250 A Voltage,v= 20 V Welding speed,=5 mm/s Arc efficiency=70%=0.7Determine the…

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

A: Given data; A gas tungsten arc welding operation is performed using;  Current,c= 550 A  Voltage, v=…

Q: d) A shielded metal arc-welding operation is performed at a current of 175A and voltage of 20V. The…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: During a fatigue test, the number of loading cycles to failure with increasing applied load.…

A: Given Fatigue test EMF series To find During fatigue test the number of loading cycle to failure…

Q: elding gas have on some rutil

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

Q: The function of gas regulators in the cylinders of gas welding is to:     Increase the flow of the…

A: The function of gas regulators in the cylinders of gas welding is to: Control gas Pressure Keep…

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

A: Given data; A gas tungsten arc welding operation is performed using following data;  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: What is the purpose of oxy-acetylene welding, and how this process differ from arc welding?

A: Oxy-acetylene welding or gas welding: A joining or welding process which is done by combustion of…

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.