Presentation on theme: "organic shapes Key areas for research During this task the research is going to focus on the following aspects: trendy Welsh craft companies and product."— Presentation transcript:
organic shapes Key areas for research During this task the research is going to focus on the following aspects: trendy Welsh craft companies and product analysis. innovative and inspiring designers. types of metals – especially mild steel
Types of Metals Metal one of the most exciting, versatile and important material to mankind? What do you think?
Metals Task – name 10 objects made of metal that is in close proximity to you.
Metals Can you think of words that describe metals? Shiny, strong, reflective, rusty, brilliant, hard, cold, rough, smooth…. Can you name any metals? Steel, gold, sliver, iron, aluminium, copper, brass, zinc, platinum, titanium, mercury, nickel, magnesium ….
Can you think of ways we use metals in: Metals our homes transport jewellery/adornment Let look at each of these and investigate the impact of metal on our lives
How do we use metals in our homes ? Metals hot water jug stool drain cover tinned food speaker back of a computer fan colander buildings lighting
How do we use metals in: transport Metals Some photographs courtesy photolibrary wales
Metals Task – Make a digital poster on the influence of metals on our daily lives. Think about, how you start the day e.g. washing your face and digitally record images of how metals influences your life. Wash my face.. cup of tea…cereal ….toast….check my mail & messages…. Inspirational image sites: www.gettyimage.com or www.istockphoto.comwww.gettyimage.com Or ask your teacher for some good image site – two possible ones are given below.
Metals are divided into three categories copper ore as it found in the ground. Metals Metals are mined from the earths crust as metal ore, which is then heated to produce pure metals. photography courtesy of photolibrary wales Non Ferrous metals Alloys Ferrous metals
Mild Steel bridge structure Bright mild steel Black mild steel Ferrous metals Ferrous metals contains iron. Bright and black mild steel are common examples: Properties Strong Joined permanently by welding / brazing Shaped by heat treatment
Carbon Steel Carbon is often added to steel so that the steel can be made harder by heat treatment, here are some examples of its uses: Properties harder than mild steel can be hardened with heat treatment not as easy to work with Carbon steel handle bars Carbon steel blades springs Other Ferrous metals.
Copper – brownish orange in colour, excellent conductor of heat and electricity. Uses of copper? Non ferrous metals These metals do not contain iron and are the most expensive to buy. Here are a few examples Aluminium – a light grey colour, this metal is easily recognised because it feels very light to handle. Gold – a very expensive metal and is used mainly for jewellery. Other uses of gold? Aluminium – a light grey colour, this metal is easily recognised because it feels very light to handle. Can you name products made from aluminium?
Alloy Wheels – similar to duralumin. Light and strong. Alloys Alloys are made up of two or more metals being mixed together: Here are a few examples : Brass - made up of copper and zinc, does not rust, quite expensive. Uses? Duralumin - made from aluminium, copper & magnesium. Mainly used for camera & aircraft parts.
Other ferrous metals Stainless Steel Made up of iron, carbon and chromium, therefore this ferrous metal does not rust very easily. Properties doesnt rust hard not easy to cut and form expensive Photographs below courtesy of www.bodieandfou.com/photolibrarywaleswww.bodieandfou.com/photolibrary Where is stainless steel used in the home? Can you work out the properties of stainless steel?
Metals can be worked/processed in a number of ways: Metals you can join it you can shape it you can polish it you can add other materials to it you can colour or paint it
Match the mostly likely used metal to each of the products below. sliver aluminiumduralumincast iron carbon steel Photograph of gold torque bangle courtesy www. adrahome.com brass silver aluminium bright mild steel bronze duralumin. gold stainless steel brass copper cast iron carbon steel stainless steel gold bronze copper Mild bright steel
Metals Task – Make a digital poster to show how metals have been used in your locality to reflect culture and traditions. Some photographs courtesy photolibrary wales
Metals Task – Make a digital poster on the ways that metals: have been used in the past are used at present could be used in the future.
Metals -recap Look carefully at the photographs below and can you spot the odd one out. ferrous metal carbon steel ferrous metal mild steel non ferrous metal aluminium
Metals – recap Look carefully at the photographs below and can you spot the odd one out. non ferrous metal copper non ferrous metal gold ferrous metal black mild steel
Metals -recap Look carefully at the photographs below and can you spot the odd one out. alloy brass alloy duralumin non ferrous metal aluminium
Metal - sustainability considerations. Before we use metal, what should we think about ? photographs courtesy photolibrary wales Metal are expensive to produce for the planet and people. Producing metals involves the mining of ore. Mining ore results in the moving of a lot of soil and rock, this can release pollution into the local environment. The amount of rock and soil moved varies with the metal ore being mined. A lot of energy is normally used to process the ore into metal. This varies for each type of metal. Do you agree with this statement? Between 3 to 20 tons of rock and soil needs to be shifted and processed to make 1 gold wedding ring. How much of rock and soil needs to be moved to produce 1 gold wedding ring?.
Metal sustainability considerations. photographs courtesy photolibrary wales Recycling metal has a higher energy payback than many other materials. This is true especially of aluminium where recycling only takes about 5% of the energy that it would to produce it from its ore source – bauxite. Before we use metals what should we think about Aluminium cans crushed ready for recycling Recycling 1 kg of aluminium saves - 4 kg chemicals 14kWh electricity 6 kg bauxite This doesnt mean we can use as much as we like, but every scrap we do use should be recycled.
Can you think of metal products that can be recycled? Computer parts being recycled in south Wales Compacted cars ready for the world largest shredder at Simms Metals - Newport Metal cans sorted Scrap metalBatteriesDomestic appliances
Metal sustainability considerations. Before we use metals what should we think about is there a lower impact material that could be used instead? ways to minimise the amount you use how to produce as little waste as possible. Where should the circle be cut out from in this sheet of metal – the centre or the corner ? As metals are such high impact materials, when choosing your materials you could consider
Helpful websites: Designers +makers in Wales www.simongaiger.co.ukwww.simongaiger.co.uk – unique wood + metal products/recycled materials – west Wales www.anncatrinevans.com www.anncatrinevans.com – innovative and exciting metal products + public art. – North Wales www.marieluned.co.ukwww.marieluned.co.uk – innovative welsh jewellery made from slate, oak and silver Others sites of interests www.bodieandfou.comwww.bodieandfou.com – full of innovative products www.wheredidyoubuythat.comwww.wheredidyoubuythat.com – again cutting edge well designed products. www.cat.org.ukwww.cat.org.uk – up to date information on sustainability www.crockhamhill.kent.sch.uk/teachers/Science...www.crockhamhill.kent.sch.uk/teachers/Science... - good reference www.wasteonline.org.ukwww.wasteonline.org.uk - help information on recycling etc Books : Metal for inspiration by Chris Lefteri – RotoVision