What is undercut defect in welding?

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asked Mar 11, 2018 by anonymous

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For arc welding current range is usually

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Last answer: For arc welding current range is usually 100 to 350 A

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asked Apr 30, 2018 by anonymous

Spot welding is used for

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Last answer: Spot welding is used for Thin metal

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The supply for arc welding is :

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Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :

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Last answer: Identify the correct combination of respective Electric arc welding and Electric resistance welding methods : (A) Butt welding and Seam welding (B) Hydrogen shielding and Projection welding ... Seam welding and Coated electrode welding (D) Coated electrode welding and Hydrogen shielding

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asked Apr 29, 2018 by anonymous

The electrode rod used for welding uses a coating on it

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Explain with sketch electron beam welding.

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asked Jan 2 by anonymous

State the four advantages of MIG welding.

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List two special feature of welding transformer.

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asked May 7, 2020 by anonymous

Welding Defects

Last answer: Welding Defects Welding defects Explanation and causes 1. Cracks Cracks occur when localized stresses exceed the ultimate tensile strength of material. These stresses are developed due to shrinkage ... Too fast a travel, Bad welding technique, Too great a heat build-up.

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asked May 7, 2020 by anonymous

State the applications of TIG welding.

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Describe with a neat diagram, the process of any one type of electric welding.

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asked Oct 12, 2018 by anonymous

Compare between Resistance welding and Arc welding on any six points.

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Welding generator will have?

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In which of the following welding methods, the molten metal is poured for joining the metals ?

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Last answer: In which of the following welding methods, the molten metal is poured for joining the metals ? (a) Gas welding (b) Thermit welding (c) TIG welding (d) Arc welding

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asked May 17, 2018 by anonymous

The commonly used gases in tungsten arc welding are

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Last answer: The commonly used gases in tungsten arc welding are Helium and argon

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asked May 20, 2018 by anonymous

Electric welding equipment works best at

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Last answer: Metal excess defect due to anion vacancies

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asked May 17, 2018 by anonymous

A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

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What is meant by dielectric heating?

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In arc welding, Argon is used because of its (1) Low reactivity with metal (2) Ability to lower the melting point of the metal (3) High flammability (4) High calorific value

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In spot welding, electric supply used is

In spot welding, electric supply used is (a) low voltage high current (b) high voltage low current (c) low voltage low current (d) high voltage high current

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In resistance welding the electrodes used are of

Last answer: In resistance welding the electrodes used are of Non – Consumable type

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In practice generative breaking is used when

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In an electric press, mica is used

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The range of frequencies used in induction heating is :

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Last answer: The range of frequencies used in induction heating is : more than 1 kHz

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Specific energy consumption is least in _______ service.

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What is undercut defect in welding?

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