Dt 10-11 Flashcards
(29 cards)
State the permanent joints (4)
Welding
Gluing
Screws (sometimes)
Rivets
State the temporary joints (2)
Nuts
Knock-down fittings
State the different Metal Joining Processes (4)
Soldering
Brazing
Welding
Riveting / Pop Riveting
Soldering is used for/temperature
Thin metal parts, electronics.
Low (~200°C).
Brazing is used for/temperature
Joining thicker metals (like steel or copper).
Higher than soldering (~800°C).
Welding is used for/temperature
Fusing metals together, Strongest metal join
Very high.
Riveting is used for
Thin metal sheets.
Metal pin hammered flat.
Pop Riveting is used for
Thin metal sheets.
Use a gun; one end snaps off
State the Common Joints of wood (4)
Dowel joints
Mortise and tenon
Mitre joints
Screws
State the Holding Devices
Clamps, vices – hold materials in place
State the Formers
Help shape material (e.g., for bending acrylic)
State the Jigs
Guide tools accurately (e.g., for drilling holes).
State Types of Finishes
Oil
Paint
Lacquer
Stain
Satin polish
Dip coating
Oil is used on
Wood
Paint is used on
Wood, metal
Lacquer is used on
Wood, metal
Stain is used on
Wood
Satin polish is used on
Wood
Dip coating is used on
Metal
Interior Finishes (3)
Satin polish, stain, paint
Less exposure to moisture
Focus on appearance and feel
Exterior Finishes (3)
Outdoor paint, oil, varnish
Must resist water, UV, weather
Focus on protection
State the different Special Finishes
Anti-corrosion coatings
Heat-resistant finishes
Waterproof sealants
Stain-resistant coatings
Define Self-Finishing Materials
The material has a built-in finish, so no extra treatment is needed
Self-finishing Reason of Acrylic (plastic)
Smooth and glossy straight from mould
