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State whether the following statement is true or false regarding ES drilling.

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in Advanced Machining by (962k points)
State whether the following statement is true or false regarding ES drilling.

(a) “In ES drilling, hydrochloric acid is used for machining aluminium and its alloys.”

(b) True

(c) False

The question was asked during an online interview.

My doubt stems from Electrostream (Capillary) Drilling topic in section Electrochemical Processes of Advanced Machining

1 Answer

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Best answer
The correct choice is (a) “In ES drilling, hydrochloric acid is used for machining aluminium and its alloys.”

Best explanation: Hydrochloric acids are used for machining Al and its alloys and sulphuric acid is recommended for other metals.

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