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Ekim, 2020 tarihine ait yayınlar gösteriliyor

LECTURE 4

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 Wood/ Limber Processing wood Softwood-evergreens-coniferous always stay green thin cell walls easier to glue, work light in color longer fiber Usage areas: construction. structural purpose, framing, paneling (cedar, fir, pine, hemlock..)  Hardwood expensive heavy, stronger, darker in color except maple, birch, ashwood usage area: furniture, flooring, cabinetry manufacturing... The anatomy of tree Timber:   Plank: Wood stick: Air seasoning: to dry wood Solid wood  Expensive, hard to joint, not practical for furniture use. Timber Based board  Different woods came together with pressing. Plywood Stronger than solid wood, show less moisture, can be used for built-up or box beams. Block Board  Each strip has different direction grains that take any directional forces. In the middle soft wood.

LECTURE 3

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 Metals - Stiff Material - Metals with fibrous: more ductile, malleable - Metals with crystalline: more brittle - With hammering and hot-working, they become more durable - Though due to strength and ductility. - High density and durable. - Good conductors. Funtions: Structural: beam, column... Covering: paneling, cladding... Framing: Window, door Installation: Pipes, flashing details Finishing: Buil-in or movable furniture Types of Metal Ferrous metal: Iron Pig Iron                                  Cast Iron: garden furniture                Wrought Iron: easily shaped Steel: the basic oxygen steel Alliminium : profiles u, L.... Brass: higher the zinc content, the harder and higher the tensile strength of the brass. varak (çok incelevha) Alpha brasses: decorative Alpha-beta brasses: more strong Bronze: expensive, rich brown in color, strong _ door furniture.....

LECTURE 2

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 Concrete The mixture of cement, water, and aggregate    Cement: (clay+cracked limestone+iron ore+ sand+(Heat)+Gypsum Drinking water: used for giving adhesive character. Aggregates: ashes, perlite Concrete can be made and formed: Cast in place-Pre-Cast Vibrator: for compress concrete Concrete Central. Transmitter: mix the concrete Glaze: smooth the surface Lento:  Concrete: Rigid, Brittle; do not show plastic deformation.   Aerated Concrete: Lighter, better in insulation. Lightweight Concrete: non-load structure can be used in insulation and acoustic -Polymer Concrete, Fiber Concrete The function is to increase tensional strength. Reinforced concrete: use with steel Shotcrete concrete: Sprayed: tunnels, pools Types of Concrete: Vacuum Concrete: Strength is higher, better surface quality. Litracon transparent concrete:

LECTURE 1

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  Ceramic Materials  ( Clay based material ) ( Glass  (Brittle))  (Stone )  ( Concrete )  Metal Materials:  ( Zinc )  ( Alliminium( Ductility) )  ( Iron )  (Copper (ductile))  (Bronze ) Molecular Materials:    ( Rubber )  ( Wood )  (Plastic)  ( PVC Vinyl Fabric )    Brittle Material: Little elastic deformation, breaks suddenly. - ceramic materials like glass. Strong Material which is not ductile: Steel - suddenly bend Stiffness: Show resistance to elastic deformation - structural steel Ductility: can be hammered - aluminum, copper Malleability: the ability to indentation. Rigidity: shows little deformation. - ceramic materials hardness: hard- steel