Mike Stokes
Flashcards by Mike Stokes, updated more than 1 year ago
Mike Stokes
Created by Mike Stokes over 4 years ago


Metal exam revision

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Question Answer
What are the two main types of metal? Ferrous and Non-ferrous Ferrous metals contain iron. Non-ferrous metals do not contain iron. Both types of metals can be recycled.
What is an alloy? A metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion.
Mild steel Ferrous Tough, ductile, malleable, good tensile strength, poor resistance to corrosion General purpose engineering material
Tough Toughness is the ability of a material to absorb energy and plastically deform without breaking. (plastically deform: to bend and return to its original shape)
Ductile Ductility is a solid material's ability to deform under tensile stress (stretching).
Malleable Malleability, is a material's ability to deform under compressive stress (squashing); this is often characterized by the material's ability to form a thin sheet by hammering or rolling
Cast iron Ferrous Hard skin, softer underneath, but brittle , corrodes by rusting Parts with complex shapes which can be made by casting (A material is brittle if, when subjected to stress, it breaks without significant deformation)
Stainless Steel Ferrous & Alloy Hard and tough, resistant to wear and corrosion Cutlery, kitchen equipment
Aluminium Non-Ferrous Good strength-to-weight ratio, light, soft, ductile, good conductor of heat and electricity Kitchen equipment, window frames, general cast components
Copper Non-ferrous Malleable and ductile, good conductor of heat and electricity, resistant to corrosion Water pipes, electrical wire, decorative goods
Brass Non-Ferrous Alloy Resistant to corrosion, fairly hard, good conductor of heat and electricity Ornaments, cast items such as water taps
Tin Non-Ferrous Soft, weak, malleable, ductile and resistant to corrosion Usually used for coating steel to form tin-plate, soft solder
Life cycle of metal 3b00b34a-5360-4ff1-9ab3-380a6f2fbd66.gif (image/gif)
Metal forming processes Casting Rolling Forging Extrusion Drawing Punching
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Discuss the possible environmental impact of using metal to manufacture products. 18e5b487-cb95-44db-ba58-67b13ac4d521.PNG (image/PNG)
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Describe and explain a method of separating ferrous containers from non-ferrous containers at a recycling plant. 984b4697-8bf6-46dc-ba0d-292ed1208326.PNG (image/PNG)
Explain the effects that a metal-based product has upon the environment throughout its life cycle. 960dd3c6-c51d-47a1-ad6f-20e1c7ae8239.PNG (image/PNG)
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Metal fixings Machine Screws 649cc216-c297-4121-abb2-18b54d06de06.gif (image/gif) Have a screw thread to fit into a threaded hole or a hexagonal nut. They can be used to join two or more pieces of metal or plastic.
Fixings Bolts 15de0cda-2484-4eaa-8b05-1b32793a0a08.PNG (image/PNG) Bolts Have a screw thread which fits into a threaded hole or a hexagonal nut, and are normally used to join two or more pieces of metal or plastic. A bolt is only threaded for part of its length. Bolts normally have hexagonal heads.
Pop rivet 360285f0-d29c-4c30-81cb-777ebf68ff66.jpg (image/jpg) Originally designed for use in the aircraft industry but are now used in many different products. They are often used where there is only access to one side of the material.
Metal joints Brazing Brazing is a way of bonding materials by melting a filler metal or alloy between the components. The filler metals used in brazing must have a lower melting point than that of the material being joined. Brazing forms very strong, permanent joints.
Metal joints Soldering Soldering is a type of brazing which works at lower temperatures. Soft soldering is used to make permanent joints between copper, brass, tin-plate or light steelwork, and is normally used to join components to electronic circuit boards. Hard soldering is used for stronger joints.
Metal joints Welding In welding, two pieces of metal are melted along the joints - fusing together as they cool. No filler is used. A filler rod may be used for a really strong joint.
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