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MECHANISM OF LASER WELDING Laser welding of metals is performed with beams focused to irradiate levels in the range of 106 to 107 W / cm 2 . At such power densities, melti
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At a fixed point in a strained material the intensities of normal stress on the planes at right angles to each other are 20 N/mm 2 and 10 N/mm 2 . Evaluate the principal stresses
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Q. Describe Cold extrusion? • Cold extrusion is done at room temperature or near room temperature. • The advantages of this over hot extrusion are the lack of
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Strain energy stored in a body due to impact load
Lasers with Solid State Lasing Mediums For an active medium, the solid state laser uses lasing ions which are suspended in a rod shaped solid matrix. These "dopants" in the rod
why we feel increase in weight when elevator goes up?
Flow Work and Flow Energy - thermodynamics: Flo w Work: The flow work is energy needed to move the working substance against its pressure It is called as flow or displac
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