Section 6 Flashcards
What type of finishes can be used for timbers?
paint
varnish
wax
polish
sealant
What is a smart material, name examples.
a smart material is a material that has an element of intelligence and can react to its environment or a stimulus. Examples - thermochromic
photochromic
Electrochromic
What is the basic machine principle?
(input force x input speed) = (output force x output speed)
What surface finishes are typically applied to metal products to prevent corrosion?
Metals can be protected using finishes such as painting, lacquering, enamelling (baking the paint on after application), polishing, buffing, powder coating, dip coating, electroplating, and galvanising.
what is the efficiency equation?
Efficiency = output power
input power
What are the key types of forces that act on a structure or product?
The main forces include tension (pulling apart), compression (pushing together), bending, torsion (twisting), and shear (sliding forces acting in opposite directions).
How can triangulation improve the strength of a structure?
Triangulation uses triangular shapes to distribute weight and force more evenly, making structures more stable and resistant to bending or collapsing.
What is the purpose of lamination in material reinforcement?
Lamination involves bonding multiple layers of material together to improve strength, durability, and resistance to wear or damage.
What are composite materials, and why are they used in design?
Composite materials are made by combining two or more materials with different properties to create a material with enhanced characteristics, such as increased strength, reduced weight, or better resistance to corrosion.
What are the advantages of using CAD (Computer-Aided Design) in product development?
CAD allows for precise design modifications, faster prototyping, improved collaboration, easier visualization, and the ability to run simulations before manufacturing.
What are the different methods of joining materials in product design?
Common joining methods include mechanical fasteners (screws, bolts, rivets), adhesives (glue, epoxy), welding (for metals), and heat-sealing (for plastics)
What are the benefits of using alloys in manufacturing?
Alloys, such as stainless steel or brass, combine metals to improve properties like strength, corrosion resistance, and durability while maintaining desirable characteristics.
What are linkages?
These are collections of levers and other devices used to change motion types/ directions and include examples such as a crank and slider, a peg and slot or a bell crank.
What are cams and followers?
This mechanism is used to convert rotary motion into linear motion and consists of 2 parts.
Name the 4 types of bearings?
Ball bearing
Tapered bearing
Sealed bearing
Fluid bearing
