Exam timber processes

Question 1

Tools for steam bending

Answer 1

Steam box
Steam or heat gen
thermometer
hose

Question 2

t must steam bixe be made of

Answer 2

pvc pipe

Question 3

why must steam boxes be made of pvc pipe

Answer 3

compeltley encase wood so steam can penetrate full length

Question 4

steam bending steps

Answer 4

timber placed in sealed box (pvc tube)
steam fed into the box via a pipe from steam box
steam penetrates timber
timber is pliabale
timber removed
set around a former using clamps

Question 5

what to include in diagram

Answer 5

steam box
pipe for steam
sealed pvc tube
water hole
valve
clamp aroudn former

Question 6

qc in steam bending

Answer 6

sacrficie wood when around former
shelves in steam box
pressure valve
water hole
guides and markings of former to ensure accurate curve

Question 7

adv of steam bending

Answer 7

aethtic appeal
most effectiev method of bending wood
doen with simple equip p
goo dstrength to weight ratio parts
connected to make any shapes
no joining needed
low power consumption
strong flexibel designs

Question 8

dis adv of steam bending

Answer 8

only high quality timebrs shoudl be used
nto the most accurae and precise
bend radius depends on timber used

Question 9

what is wood laminaing

Answer 9

multipel sheets fo wood veneers formed using moulds and then bonded using strong adheisves

Question 10

what does wood laminating produce

Answer 10

stong, rigid, light weight structure

Question 11

process fo lamianting

Answer 11

thin veneers
adhesive applied
adesives lauyered up
clamped in adie
adhesive dries

Question 12

what is the die look liek for lamianting

Answer 12

a sanddwhich
male and female part
timber in middle

Question 13

how to draw wood lamination diagram

Answer 13

former
wood in between aletranting grain directions
each layer glued
clamped together
make shape

Question 14

what are the veneers in wood lamination

Answer 14

very thin

Question 15

materials used in lamination

Answer 15

birch
plywood - flexbible

Question 16

why birch used

Answer 16

strong
flexible when thin
durable

Question 17

adv of laminating

Answer 17

range fo thciknesses
strong lightweight components
can be combiend wiht other materials to enhacne proeptire s

Question 18

scale of laminating

Answer 18

one off
batch
mass

Question 19

cons of laminating

Answer 19

many steps
restricted to bends in signle direction

Question 20

are the number of veneers used in lamianiting odd or even

Answer 20

odd so grain same directio

Question 21

quality control for forming

Answer 21

high quality contact sirface
plastci film tp [rpdicy oulds from spillahe

Question 22

how vaccum lamianting work

Answer 22

same as vacc forming jst for wood

Question 23

diagram for vacc lamianting

Answer 23

High densitiy polysere mould
laminates gled and placed on surface
sealed pvc bag
air extraction
bed designed for air removal

Question 24

what is kefing

Answer 24

close saw cuts to allow shit to bend

Question 25

kerfing step by step

Answer 25

slot or grooves in board
not cut all the way through

Question 26

after wood is kerfed then what

Answer 26

thin laminate on cut side to hodl it together

Question 27

materials used in steam beding

Answer 27

hardwoods
beech
oak

Question 28

why beech and oak used for steam bending

Answer 28

pliable