GATE ME · 2018 · ME
Question 55: Machining and Machine Tool Operations
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Question 55
MENAT2 marksNeeds review
An electrochemical machining (ECM) is to be used to cut a through hole into a 12 mm thick aluminum plate. The hole has a rectangular cross-section, 10 mm × 30 mm. The ECM operation will be accomplished in 2 minutes, with efficiency of 90%. Assuming specific removal rate for aluminum as 3.44 × 10⁻² mm³/(A s), the current (in A) required is ______ (correct to two decimal places).
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2018ME
GATE ME 2018 · Paper 1
Mechanical Engineering · Original paper archive
- Section
- Mechanical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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