Studied by 5 people
Examples of Additive techniques
Paper-based rapid prototyping
Laminated object manufacture (LOM)
Stereolithography
Paper-based rapid prototyping
Layers of paper cut and glued together to create a 3D shape. Low-fidelity.
Laminated object manufacture (LOM)
3D printing technique that involves the layer-by-layer construction of objects using sheets of material, typically paper, plastic film, or metal foil
Stereolithography
Solidification of powder using 3D printing
Examples of subtractive techniques
Cutting (Laser, Saws, Chiseling, Drilling)
Machining (Router or Milling machine)
Turning (Metal or Wood Lathe)
Abrading (Sanding, Filing, Grinding)
Examples of shaping techniques
Moulding
Thermoforming
Laminating
Knitting
Weaving
Moulding
Injection moulding, extrusion
Thermoforming
Heating plastics and vacuum forming, or using a strip heater to heat and bend acrylic
Laminating
Flexi-plywood by gluing layers together over a former/shaped mould
Casting
Sand casting, Die casting- usually solid to liquid then cooled
Examples of Joining techniques
Permanent
Temporary
Adhering- Gluing
Fusing (welding)
Permanent
Methods used to permanently bond or join materials together, creating a strong and lasting connection.
e.g. Welding, Brazing, Soldering (joining metals by melting a filler metal), Pop riveting
Adhering- Gluing
once formed, cannot easily be separated
Fusing (welding)
Permanent process involving the heating of the surfaces such as metals and plastics. This process isn’t recommended when considering design for disassembly
Temporary
(non-permanent fastening)
Fastening or joining materials mechanically through the use of screws, rivets, bolts, pins, clips, nails, press studs and snaps.
Adv and Disadvantages of permanent vs temporary
Temporary:
ease for disassembly at the expense of permanent damage to the materials used eg. installing screws
Adjustability: Temporary joining methods offer flexibility in terms of adjustment and alignment of the joined parts.
Permanent:
Strength and durability: Permanent joining techniques, such as welding or adhesive bonding, can create strong and durable connections between materials.
Seamless appearance
Load distribution: Permanent joining techniques distribute the load across the entire joint, minimizing stress concentration.
