Materials and processes for final prototypes Flashcards
What is a final prototype
A pre production version of an intended product
What is wasting and subtraction
Removal of metrial to get a desired shape
Talk about drilling
Method of -
Removal
Subtraction
Talk about the different twist drills
Used on polymers, metals and timber
Talk about spur points
Used for drilling wood and leaving clean sided holes
Talk about flat wood bits
Only for power drill, the centre finds the point and the sides cut away the materials either size
Talk about holes saw drill bit
Interchangeable toothed cutting rings
Used to cut holes in thin sheet metals and wood and polymers
Talk about forstner bit
Used to make holes with aflat bottom
Talk about wood auger bits
Used for drilling deep holes into timber
Talk about tenon saws
A back saw used for general wood cuttings
Talk about dovetail saws
A back saw, which is a smaller version of a tenon, used for more detail
Talk about coping saw
A fram saw for cutting curves in woods
Talk about hacksaws and junior hacks saw
A fram saw used for cutting metal or tubes
Talk about piercing saws
A frame saw with a fine blade used for delicate work with metals
Talk about cross cut saws
A hand saw used for large sections of woods when cutting across grains
Talk about panel saws
Hand saws used for cutting large sheets
Talk about rip saws
Hand saws used for cutting or ripping the grain of large sections of woods
Talk about turning
Done in two ways , where a piece is either set up on a face plate or between two centres
Talk about milling
The removal of material using multi tooth cutting devices
How can shaping of materials be done
With tools such as files rasps and surforms
What is abradings
Wearing material away by rubbing it with another surface
Talk about riveting
Joinign fo flat metal ships, wjere rivet is hammered and sheet is joined
What is souldering
The joining of metal compoenets by metling and flowing metal filler
What is brazing
Similar to souldering , but at higher temperatures
Talk about welding
Unlike souldering and brazing it does not use a filler metal, yet the base metal to joing to things together
Talk about adhesion
Where componenets are bonded using adhesives
Give some commonly used adhesives
PVA
Metal adhesives
Polyurethane Resin
Epoxy resins
Silicolnes
Solvents
What are some polymer moulding methods
Thermo forming
Line bending
Vaccum forming
Press forming
What is lost wax casting
High detailed mould
Mould dipped in slurry
Material inside sets
Leaving a die
What is resin casting
Where a mould is filled with a liquid resin then left to harden, the resin would me mixed with a curing agent
What is low temperature casting
Where low melting temp metal, is heated and placed into a mould
temporary joiningmethods
self tappign screws
machien screws
nuts and bolts
what are machien screws
a type of bolt where there si thrread n the entire length of the shaft
what are kd fittings
knock down fittings, which allwo products to eb assembled and disasmbeld many tiems withotu weakjign the joint
what are dfiferent types of adhesisves
pva - for wood
contact adhesives - large areas
solvent cemenet - polymers
epoxy resin
what does solvent cement do
softens the surface of teh polymers to be joined
knock down fitting examples
corener blocks
camp lock fittings
barrel and svrew
cabinet hinges
whta is gravity die casting
using lower meltin point metal,and lettign gravity elp them flow through th mould
when is gravity die castign used
for thicker mould sectiosn and batch productions, alloys and door knobs etc
what is prrssure die casting
standard die castign
what is a fixture
soemthign that hodls osemthign in a set place
what is lean manufcaturing
a process whcih aims to recdce waste and contually improev to add valeu for consuemrs
strategries of lean rpodctuon
recution os exess stock
the use of sigma siz
philosphy of cotnuous improbemnt
relationships with consumers
multi skilled workrs
types of waste targeted in lean manuacturing
transport
inventory
moving parts
waiting times for equipment
removal of uneccssar comeptonents
over production
defects
what is ddm
direct digital manufacturing, fiels sent directly to printers and shit from cad
what is cim
computure intergated manfacture
difference bwteen qa and qc
qa is planning for quality and qc is specific measures and control during manfuacture
when are pop rivets used
when udner side fo metal is inaccesibly
types of fasters used for metals
self tappign screws
machien screws - whoel shaft si threaded
nuts and bolts
types of adhesives
PVA - wood to other
contact adhesives - same or diff materiasl
solvent cement - softens polymers and allows them to join
what are knock down fittings
parts that allow products to be assembled and dissamebled withotu dameg to joints
types of knock down fittings
corner blocks
cam lock fittings
barrel and screw
cabinet hinges
