1. INTRODUCTION Ms. SumbalSalim

2. Role of Material in Designing A strong understanding of material use and manufacturing processes is essential and needed in the Industrial Design industry today. The right selection of materials and manufacturing processes is important in enabling a successful product launched to market. Selection of a material requires a knowledge of the function & requirements of the product & materials available to fulfill them.

3. Good Design 1. is a good investment. This means there has to be risk assessments, planning, budget controls, and long term goals set out. It is not, and should never be about making something look good and flogging it for extra cash. 2. does not exist in vacuum.Good understanding of user needs, a critical insight on a problem, and a well defined brief is vital for producing the best designs.

4. Good Design 3. is beautiful. There is no justification for bad design or idea. In other words you cannot polish crap. 4. is innovative, intuitive and clever. 5. is strategic.

5. how to choose the right material for our products? 1. Function and Personality of the Materials grasp a good knowledge of materials characteristics. Different materials have different functional properties. 2. Manufacturing Processes, Quantity and Cost Choosing the right material and having a good understanding of various processing methods to form products are very essential factors

6. how to choose the right material for our products? 3. The question of sustainability Choosing the right material that has strong sustainable qualities ( recyclability, energy efficient, solar-powered etc.) are important.

8. Role of Materials in Designing- paper clip Material selection involves cost consideration, appearance, surface texture, & corrosion resistance. A paper clip is made of galvanized steel wire or plastic (PVC) 1. If elasticity is too high, a great force will be required to open it. 2. If strength is too low, it will bend permanently. 3. The wire needs to be stiff enough to hold its shape in use.

9. Role of Materials in Designing- paper clip The paper clip evolved to fill a specific need. A large amount of paper could be bound into a book in order to hold the leaves together. the paper need not be pierced.

10. Role of Materials in Designing- Al foils Aluminium foilis prepared in thin metal leafs, with a thickness less than 0.2 mm / 0.008 in, although much thinner gauges down to 0.006 mm are commonly used. Aluminium foils thicker than 0.025 mm (0.001 in) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

11. Role of Materials in Designing- Al foils Aluminium foils thicker than 0.025 mm (0.001 in) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process. As aluminium foil acts as a complete barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moisture, and bacteria, it is used extensively in food and pharmaceutical packaging.

12. Role of Materials in Designing- Al foils These foils are several times thicker than household foil- allowing for long lasting creations.

13. Manufacturing Process/TechnologyPaper clip Will the chosen material be able to under go bending during the forming process without breaking? Can the wire easily be cut from the longer piece? Will it cause excessive wear on the tooling? Will it produce a “burr” on the wire? Does the material have to be metallic? If steel, which carbon steel would be least expensive one?

14. Manufacturing Process/TechnologyPaper clip The wire itself is given some important treatment including, “tempering”, “cold drawing” “annealing”. A variety of special finishes for these materials are suitable such as protective coatings of steel, e.g. tinned, galvanized A rod (made in a rolling mill) is heated and pulled through a hole whose diameter is slightly smaller than the rod's. This process is repeated through ever-smaller holes until the wire is as fine as desired

15. Manufacturing Process/TechnologyAluminum foil Aluminium foil is produced by rolling For thicknesses below 0.025 mm (0.001 in), two layers are usually put together for the final pass which produces foil with one bright side and one matte side. The two sides in contact with each other are matte and the exterior sides become bright. this reduces tearing, increases production rates, control thickness. The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%

16. Anodizing Aluminum Foils Aluminium is anodized to increase corrosion resistance, to increase surface hardness, and to allow dyeing (coloring). Anodized aluminiumis non-conductive. the coating will crack from thermal stress if exposed to temperatures above 80 °C.