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  • Kaustubh Katdare
    Kaustubh Katdare

    @thebigk • Jul 30, 2012

    Welcome to CE, friend. We're happy to have you with us. Hope to see you active here. Explore our Mechanical Engineering section and post your ideas there.

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  • Ramani Aswath
    Ramani Aswath

    @ramani-VR4O43 • Jul 30, 2012

    IR rain sensors are already in the market and in use for closing sliding roofs and such when it rains. They can easily be used for your application.
    #-Link-Snipped-#
    You can easily integrate this with a photo resistor with a suitable grey filter to do the same when the incident sunlight is above a designed value.
    Something on these lines:

    [​IMG]

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  • Harshad Italiya
    Harshad Italiya

    @harshad-ukH5ww • Jul 30, 2012

    Welcome to CE. Now you have reference design start working buddy.

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  • zaveri
    zaveri

    @zaveri-5TD6Sk • Aug 1, 2012

    imhomohneed any assist to achieve these

    welcome dude. come to the mechanical section and explain your problem in detail.

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  • Kedar Malwadkar
    Kedar Malwadkar

    @kedar-crbktt • Aug 3, 2012

    Welcome to CE!
    Lot's more to explore in mechanical section!

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  • kn081993
    kn081993

    @kn081993-bzlfx7 • Jul 20, 2016

    can anybody give the correct answer of this question?
    in a particular arc welding operation 5 mm thick steel plate require 40 A current , what should be the current requirement for welding 10 mm thickness plate?
    a) 10 A
    b) 20 A
    c) 60 A
    d) 160 A

    pls answer

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  • Ramani Aswath
    Ramani Aswath

    @ramani-VR4O43 • Jul 20, 2016

    <a href="https://www.mig-welding.co.uk/arc-flat-joints.htm" target="_blank" rel="nofollow noopener noreferrer">Arc (MMA) Welding Flat Joints</a>

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  • kn081993
    kn081993

    @kn081993-bzlfx7 • Jul 20, 2016

    sir i watched this topic but i am not getting any help ..i m not getting any formula for answer of this question..pls help...

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  • Ramani Aswath
    Ramani Aswath

    @ramani-VR4O43 • Jul 20, 2016

    There cannot be a formula as such. The heat transfer during welding is far from steady state. Too many factors are involved. Thickness is only one. The practice is to start with a smaller current and increase it gradually till a satisfactory weld is got.
    My knowledge in welding is very limited and non structural.

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  • kn081993
    kn081993

    @kn081993-bzlfx7 • Jul 20, 2016

    ok sir

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  • Azar Deep
    Azar Deep

    @azar-YZifUn • Aug 19, 2016

    kn081993can anybody give the correct answer of this question?
    in a particular arc welding operation 5 mm thick steel plate require 40 A current , what should be the current requirement for welding 10 mm thickness plate?
    a) 10 A
    b) 20 A
    c) 60 A
    d) 160 A

    pls answer

    C)60

    0