What is material in design technology?
Design and Technology – Materials – enables students to produce products, systems or environments using a wide range of materials and technologies in a work-shop based environment. Materials can include plastics, timber, textile or metal and technologies used, range from mechanical to electronic to robotic systems.
What is the need for material testing?
The quality of a material going into a manufactured product is as important as the reliability of the production process. Materials testing helps us to understand and quantify whether a specific material or treatment is suitable for a particular application.
What are materials properties?
The material properties are size, shape, density of the particles, and their intrinsic mechanical properties (Young’s modulus, yield stress, fracture toughness, etc.
What is properties of technology?
Technological properties are those qualities which give information regarding the suitability of metals for various technological operations or processes. Such properties are highly desirable in shaping, forming and fabrication of materials.
What are properties in DT?
Physical properties
| Physical property | Definition |
|---|---|
| Aesthetics | The appearance of a material, including colour and feel |
| Density | The amount of material contained in a set volume |
| Conductivity | The ability of a material to hold heat in or out (thermal) or the ability of electrical current to flow through a material (electrical) |
What are the different types of material properties?
There is a difference between the mechanical and physical properties of an alloy.
- Conductivity.
- Corrosion Resistance.
- Density.
- Ductility / Malleability.
- Elasticity / Stiffness.
- Fracture Toughness.
- Hardness.
- Plasticity.
What are material properties?
Why is it important to test the properties of a material?
The answer is that every material has different properties; some are hard and others are soft, some are transparent and others are opaque. For each product that is produced, the material from which it is made determines many of its properties. This is why material testing is so important.
What are the different types of material tests?
In this lesson plan, students will conduct their own range of material tests, which include the assessment of mechanical, chemical, and optical properties. While testing different materials, they will realize that each material has its own characteristic properties.
Why is testing important in the design process?
An important part of the design and development process is testing the materials you plan to use – this can, for example, ensure the materials are strong or durable enough for the task. Testing is also used as a method of quality control to ensure that products are safe and fit to be marketed.
How is magnetic testing used in industrial design?
Magnetic Testing: the material will be magnetised, iron particles are dusted over the material and where magnetic lines are broken it visibly shows where the defects or cracks are (see the area that has waved out in the image) – used to check weldings in order to make sure they are secure. Watch a short video here.