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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 x10-2 mm3 /(As), the current (in A) required
is __________(correct to two decimal places).
    Correct answer is '(968.992)'. Can you explain this answer?
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    An electrochemical machining (ECM) is to be used to cut a through hole...
    Volume of metal to be removed

    Ideal energy required



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    An electrochemical machining (ECM) is to be used to cut a through hole...
    Wide and 8 mm high. The ECM process uses a current density of 200 A/cm2 and a voltage of 10 V. The material removal rate is 0.1 mm/min. Determine the machining time required to cut the through hole.

    To determine the machining time required, we need to calculate the volume of material that needs to be removed and then divide it by the material removal rate.

    The volume of the hole can be calculated as:
    Volume = length × width × height
    = 12 mm × 10 mm × 8 mm
    = 960 mm^3

    Since the current density is given in A/cm^2, we need to convert the volume to cm^3:
    Volume = 960 mm^3 ÷ (10 mm/cm)^3
    = 0.96 cm^3

    To calculate the machining time, we divide the volume by the material removal rate:
    Machining time = Volume ÷ Material removal rate
    = 0.96 cm^3 ÷ 0.1 mm/min ÷ (1 cm/min ÷ 10 mm/min)
    = 0.96 cm^3 ÷ 0.1 mm/min ÷ 0.1
    = 96 min

    Therefore, the machining time required to cut the through hole is 96 minutes.
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    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 as3.44 x10-2 mm3 /(As), the current (in A) requiredis __________(correct to two decimal places).Correct answer is '(968.992)'. Can you explain this answer?
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    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 as3.44 x10-2 mm3 /(As), the current (in A) requiredis __________(correct to two decimal places).Correct answer is '(968.992)'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about 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 as3.44 x10-2 mm3 /(As), the current (in A) requiredis __________(correct to two decimal places).Correct answer is '(968.992)'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 as3.44 x10-2 mm3 /(As), the current (in A) requiredis __________(correct to two decimal places).Correct answer is '(968.992)'. Can you explain this answer?.
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