Current passing through resistance electric welding - Manufacturing Processes - 1

Q.  In resistance electric welding, the current passed through two joining metal pieces is
- Published on 03 Aug 15

a. 230 to 440 volts, at a high amperage
b. 230 to 440 volts, at a low amperage
c. 2 to 8 volts, at a high amperage
d. 2 to 8 volts, at a low amperage

ANSWER: 2 to 8 volts, at a high amperage

Related Content

 

    Discussion

  • Pankaj   -Posted on 02 Nov 15
    - In resistance electric welding, two metals are joined by pressing them together and passing a heavy electric current through them.

    - Fusion temperature is obtained by placing two metal surfaces in contact with each other and passing a current of 2 to 8 volts, at a high amperage through them.

    - Current is switched off to complete the welding.

    - The advantage of resistance electric welding is the rapid heating of the surface being welded due to high amperage current.

    - Successful operation of resistance electric welding depend upon correct application of welding current, welding pressure and contact area of electrodes.

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲