Mechanical Engineering - Workshop Technology - Discussion

42. 

The electrodes used in spot welding have a tip of

[A]. stainless steel
[B]. aluminium
[C]. copper
[D]. brass

Answer: Option C

Explanation:

No answer description available for this question.

Pagi said: (Mar 6, 2014)  
Copper is better conductor of electricity.

Devendra Mishra said: (Jun 10, 2016)  
Copper is used for electrodes because it has a low resistance and high thermal conductivity compared to most other metals.

Debasish Somu said: (Aug 26, 2016)  
I think the brass tip is used.

Rahul Dhiman said: (Jan 30, 2017)  
Brass is used I am 100% sure.

Rajbir said: (Oct 25, 2017)  
Copper is the correct answer.

Shamal said: (Nov 15, 2017)  
Copper, because of its high thermal and electrical conductivity.

Amitraghat said: (Feb 10, 2018)  
Sharp copper tip electrodes are used.

Gurunath said: (Mar 22, 2019)  
Alloys of copper where Sharp copper tip electrodes are used.

Mayur Rank said: (Nov 27, 2019)  
But both copper and brass are in option its better to choose copper if option C not given as 'both A&B correct'.

Salahuddin said: (Mar 12, 2020)  
But welding copper with spot welding is difficult.

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