7.4 Flashcards
how are manfuactruing emthdos catergogrised
high volume (mass)
batch production
oneoff/bespoke
wht is mass production
making large numebrs of standarisde products in highly mechansied factroies
what si batch rpoduction
manfuacture of groups of products to icnrease effciency and economy
what si bespoke
tailor made for custoemr
what does size of productuon depend on
demand
type of product
materials used
equipment avalble
workforce size and skill
costs
ability to use standardised martiasl and parts
exampels of bespoek productio
luxury yacht
customsie chairs for phsycially disabled
wedding cake
violin
what si tehre with bespoek production
increased expense
icn time requriemenst
mroe complex processes
why is tehr einc tiem expense and rpocess in bespoek proudction
individual client consultations and deisgn work
high levesl fo skill for making
length mnanfuactru set up
low eco of scakes
featrues of batch rpoduction
qc
effecint
cost effective
manfactrue of simialr proidycst
how does batch rpoduction have its features
by using simulatenous manfuactruing processes
examples of batch production
pottery
wooden futniture
electric gutiars
adv of batch production
accurate fast production of parts
flexibility for emand led change fo batch size
few skilled workers needed, comapred to ebspoek
offers special addition, colorus and customsiation
and does batc rpoduction allwo fro accurate fat manfuactrue
use of jig fixtures and cnc
general size of batch production
few to 1000s
when is high vol prodution sued
for products taht are costantly demanded
methdos of mass rpoducion
contioues flow
in lien
fully automated
what is contuniosu flwo production
higjly autoamted 24 7 process, usually requriing small workforce
key fratrues of cont flow prod
highly automated
raw materiasl to products in same factory
products can be the matrial for other products
where woudl cotn flow prod be sue d
glass
paper
polymer extrusion
copper wire
adv of cont flow prod
small work force
cons fo cotn flow prod
lwo job satsifaction
expensiev to set up
features of inline production
manfuactrign stages carried otu sequentially
division fo laabour
hugh skileld work kforce
highly auto mated
conveyros often sued
examples of inlien prod
cards
furnttiure
appliances
clothign
adv of in line
reduced cost comapred to bespoek ro batch ]
cons of in lien
expensiev set upw ith atuomationm
features of fully atuomated prod
used for products in high demadn
dedicated machienr for long runs
miniaml variatio
examples of fully automated
screws
staples
paper clips
leds
adv of fully automated
low unit costs
low skill work force
cosn fo full auot manfuatcure
high cpaital invetment
needs effecityve maitnainence systems
low job satsifactiom
how to comapre the diff productions cales
use very opposite expales, eg ebspoek woudl eb a personalsied suti, but mass woudl eba phoen case
what is the imapt fo mass customsiation
able to chaneg shit easy , to create new demadn etc
what is modular/cell production
combinign of cnc machines in groups
what are teh cells in mod/cell prod programmed to carry out
sequence of operations to provide flexibel manfauctrue for a wide raneg fo compeoeents
exampels of mod/cell rpoductio
robits transportign maetrials to diff areas
robots with six axes to laod and ulaod
rapdi tool chanegs and effcivte work peice clamping
small team of multi skilled workers
what is a high prirotity for mod/cell production
effectiev priodcution plannign
what is JIT manfuacture
manfuactrrue as order comes
what is lean manfuacture
a system that aims to recue waste and contuosuly improve
main featrues of JIT
good relationship with suppliers
good transport ifnrastructure
no stock pilign of materials
reduce stroage
computires stock control
what does lean manfuactrue focus on
enchancing JIT appraoch
hwo deos lean manfuactrue aim to enhance JIt approach
reduciton fo stock and waste in all forms
use of sigma 6
contiuos improvements
focus on relationship with custoemr and supplier
milti skilledand versatile capitla
what are the types of waste lean manfuactruing aism to rid
unnecsary transport
excess inevtory
too many peopel and machiner
waiting between machines
over enrgineerign
excess productio
correctign defects
what can standardise parts be relied upon to do
fit correctly when adding or repalcing elemenst fo design
what si one of the most improtnat exampel fo standardisation
screw fasteners
what will standrisation ensure
boguht in aprts and comepents will inetrgate seamlessly into manfuactruers products
beenfist fo using bough in compeoentst
sub assemblies
bought in bulk
tiem saving
no need for specialsit equip
high stadnard
wh do suppleirs make cad fiels easily avaible
so they can be easily inetrgeatd to cad design
what is fully automated manfuctrue
lack of human involvement and robtos alogn side auomated machiens
what do robtos in faully auto manfuacture do
move in 6 axis
precise hadnelling of parst nd compoenets
are prorgammable for a wide raneg of roel s
what is PPC
prodcution panning and control
what is ppc, other tahn what it satnds for
strategry to ensure shit in right palce at right time
what does PPC and other rleated comp software sytem provide
organsiation of materials and parts
maintaince scheduling to keep effeincy
what does CAD offer
wide range fo toosl for cretaign and mdoifyign
rapdi sharing
rapdi prottyping
aidings cAM
what si CAM
use fo wide raneg of CNC machiens
adv of CAM
minmum inteviention
standarised files mean remote work
compututre oeprated isnpection and qc
reduced human input
what do develpments such as CAD and CAM help facilitae
rapid repsone to chaning fashion in produce and computure controlled shit
where are computr systems used in manfuacture
productio
distribution
storage
what deos CAD and CAm allow
mass customsiatio
hwo does CAD and CAM allow for mass customsiation
peopel adding preferneces onlienwithotu the need for bespoek interaction etc
what si mass customsiation
manufacturing etchnqiue whcih ues onlien roderign to combien flexibiltiy adn personalsiation fo custom amde products in mass production
what is DDM mean
direct digitl manfuacture
what is DDM
syste where parts are produced directly from cad fiels to machien
what does DDM use
SLS 3D pritned maetrials and other RMs to allow the productioj of tooling parts and products
exampels fo what may be made in DDM
metal and cermaic patetrs/moulds
complex engieneering compeoents
custom prosethetcis
meaning of lgoistcis
deatieled oragsnation of actvities such as transport of materials, parst or products
what si CIM stadn for
compututre intergeated manfaucture
what si CIM often used to descirbe
hwo coputres oevsee all staegs fo binign shit to market , from design, to manfaucture to distrubution
adv of CIM
effocncy
optimum flw
demand cna be forecast
optimum suppliers identifed
stock control
examples of stcok cotnrol capabiltiies in CIM
motiorign costign and orderign maetrial and parts
computrueised warehosues
optimum loading patetrns for freights contraners
efficnt delievry schedule
EPOS
oragsnsiation fo optimum buffer stiok
general draw back of computure systems
ddigital data security issues
set up and trainign costs
need to be udpated
need for back up systems
