(8) Mechanical and Adaptive Metallurgy

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15 Terms

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ADAPTIVE METALLURGY

converting final product from extractive metallurgy to user product

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  • Mechanical Metallurgy

  • Foundry Science

  • Powder Metallurgy

  • Metal Joining and Assembly

Major Categories Under Adaptive Metallurgy (4)

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MECHANICAL METALLURGY

area of adaptive metallurgy that deals with the response of metals to forces or loads

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ROLLING

thickness reduction of a material passed between a pair or revolving rolls

most commonly used deformation process

<p>thickness reduction of a material passed between a pair or revolving rolls</p><p>most commonly used deformation process</p>
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FORGING

  • compressive stress is applied on the material that exceeds the flow of stress of the metal

  • application of stress is employed in succession or continuous manner

  • laterally between x and y axis

<ul><li><p>compressive stress is applied on the material that exceeds the flow of stress of the metal</p></li><li><p>application of stress is employed in <strong>succession or continuous</strong> manner</p></li><li><p>laterally between x and y axis</p></li></ul><p></p>
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EXTRUSION

  • reduction of cross section of a metal block through forcing it flow through a die orifice under high pressure

  • application of force is on the side with large cross section

  • force is applied outside to the end

<ul><li><p>reduction of cross section of a metal block through <strong>forcing it flow through a die orifice under high pressure</strong></p></li><li><p>application of force is on the side with large cross section</p></li><li><p>force is applied outside to the end</p></li></ul><p></p>
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DRAWING

  • metal is pulled through a die with the use of tensile stress

  • application of force is on the exit side of the die or the side of smaller cross section

<ul><li><p>metal is pulled through a die with the use of tensile stress</p></li><li><p>application of force is on the exit side of the die or the side of smaller cross section</p></li></ul><p></p>
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CASTING or FOUNDRY SCIENCE

  • molten metal is solidified in a mold which produces the metal object

  • the shape of the cavity determines the shape of the object

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POWDER METALLURGY

  • powdered metal is being compacted that is then succeeded by heat treatment method to produce desired shape of the object

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  • Mechanical Process/Joining

  • Adhesive Bonding

  • Soldering, Brazing, and Welding

Metal Joining Processes (3)

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MECHANICAL JOINING

  • oldest method for joining metals

  • these methods only require minimum use of equipment in producing simplest forms

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ADHESIVE BONDING

  • bonding metals together with the use of organic and inorganice compounds

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SOLDERING

  • deals with bonding two or more metal pieces using another metal whose Tm < 800 oF and < Tm of the metal to be joined

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BRAZING

  • deals with bonding two or more metal pieces using another metal whose Tm > 800 oF and < Tm of the metal to be joined

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WELDING

  • a filler metal is used to join work pieces together which are heated to > Tm

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