U4
SUMMARY unit 04.
MATERIALS. METALS
group:
2º Bil
METAL EQUIPMENT, TOOLS AND MACHINES
When we want to make an object out of metal, we need to follow these steps:.
Measuring (Medición)
Ruler
Marking & drawing (MarcadoyDibujo)
Scriber
Cutting
Drilling
Shaping/Turnning
Plane & sand
Joining& assembly
Finishing
(Cortado)
(Taladrado)
(Rebajado y nivelado)
(Alisado y Lijado)
(Unión & Ensamble)
(Acabado)
Metal cutter or shear Awl
Chisel
file
Permanent Joints Rivet
Measuring tape
Centre Punch
Guillotine
Drill
Lathe
Scraper
Press fit joint
What is it for? Removing surface imperfections Polishing Protecting metals from water and corrosion
techniques Odd-leg calliper Compass with Steel points
Punch press & die
Drill bits
Hacksaw
Circular saw
Sander
Grinder
Adhesives Welding and soldering
Temporary Joints Nuts and bolts
Equipment to secure pieces
Screws
Bench vice
Angle grinder
C-Clamp
Threaded stay bolts Keyed joints
Bar clamp
Splined shafts
Ring clamp
Slinding joints
TECHNOLOGIES IN SECONDARY SCHOOL FOR SPANISH SPEAKERS Tekneso
Grinding: It’s used to refine surfaces to precise, accurate dimensions and remove imperfections Lapping It’s used for finishing opening and conical surfaces and provides a very accurate finish. Polishing It’s used to provide shiny surfaces Buffing It’s used to provide shiny surfaces Coating It’s used to provide a protective layer with plastic or other metals. This technique is also called galvanization. Paints, enamels and varnishes can also be used.
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