IMSE section 2
Most cutting proccess are? 3D orthoganal
3D
what doesnt have HAZ a) LBM b) oxygen fuel c) Pac d) AWM
AWM
CBn or diamond are used to gring ferrous metals
CBN
which desposition method has the higher depositing temperature? CVD (chemical vapor despo) PVD (physical v...)
CVD
WHat has the most accurate tolerance a) LBM b) oxygen fuel cutting c) PAC d) AWM
LBM
for the thermoset, the melting temperature is higher or lower than the curing temperature
Lower
in wire-EDM, a) a wire is moving b) wire is the product
a)
cylindrical grinding is where a) both the wheel and the workpiece spins b) wheel spins c) workpiece spins
a) both of them spin
which is false in grinding a) truing/dressing is sometimes called balancing b) some abrasive matrial should be removed during t/d c) t/d can be done using a single or multi point diamond tool
a) its sometimes called balancing
which is not true in grinding a0finer grain size gives rougher surface b) vitrified bond system is more rigid than resin c) pore space determines if the wheel has an open or closed structure
a)...
LBM and AWM are primarily for a)flat sheets b) cylinders c) hollow cavities
a)flat sheets
which is not true regarding creep feed grinding a) depth of cut is smaller b) feed rate is smaller c) requires more horsepower
a0 depth of cut is not smaller
what has the largest consumption in composites? a) space and defense b)aerospace c) industrial d) electronic
aerospace
in brazing and soldering, a filler metal will always be, never be, or may be consumed
always!
grinding has a better or worse surface finish than turning/milliing
better!!!
LBM is for small holes, large holes or both
both
double disk grinding- both sides of a grinding wheel are being used or both sides of the workpiece are being grinded
both sides of the workpiece
which is not true about honing? a) tool used is a stone made by abrasives b)removes a small amount of material from the surface of holes. c) cannot remove common errors left by boring d)it can removegrinding marks l
c) cannot fix boring
(milling) V=piDN D=? a)the work piece diameter b) hole being machined c) the tool
c) the tool
in autoclave molding process the pressure can or cannot reduce time
can
the individual components of the composite can or cannot get all the properties of both components
can not
which fiber has high temp resistance (glass carbon boron ceramic metallic)
ceramic
whats like corrosion a) chemical machining b) Electrochemical c) abrasive flow d) ultrasonic
chemical
which is less dense, aluminum or composites
composites
the mold in thermoplastic injection molding is cooled, heated or either?
cooled
which process belongs to the molding process? (imprenation, curing, extraction, trimming)
curing
Which is not a benefit of cutting fluid? a)increase tool life b) decrease rust c) less polution d) increase yield strengthof workpiece
d) increase yield strength
As shear angle increases, chip thickness?
decreases
CBN or diamond are used to grind non ferrous and non metals
diamond
For a twist drill, the rake angle along the main cutting edge is the same or different along the tool.
different
what isnt true. a) 1D reinforce men gives srength in one direction b) 2D gives 2 directions c) isotropic gives equally everywhere d)iso gives differently everywhere
differently everywhere
in spray up process continuous or discontinuous fibers and resins are sprayed simultaneously into the mold
discontinuous
LBM does or does not generate cutting forces
does not!
Put honing, drilling, and reaming in order from roughest to smoothest surface finish
drilling, reaming, honing
Which one will NOT happen when cutting fluid is applied. a) shear angle increases b)cutting temperature decreases c) BUE dissappears d) power consumption decreases e) actual clearance angle decreases
e) actual clearance angle decreases
the drying and hardening can be (unaided,aided or either) when curing
either
whats the reverse of electroplating? a) chemical maching b) electrochemical c)abrasive flow d) ultrasonic
electrochemical
pockets can be machined by (slab,face,end)
end
both USM and RUM can machine non circular holes
false
grinding is huge in automotive but not in semiconductor industry?
false
is it fusion or solid state welding that melts the base metal.
fusion
which fiber is most widely used (glass carbon boron ceramic metallic)
glass
explain up milling and down milling
good job
When maching very hard materials is it better to use grinding or turning/milling
grinding
straight or helical teeth in slab milling will result in an oblique cutting action.
helical
A small shear angle means a ? cutting force
high
are trees a composite
i suppose
decrease in cutting speed will___ the tool life
increase
EDM, as on-time increases, overcut?
increases
When depth of cut increases, the cutting force ?
increases
which uses a the close-mold (vacuum bag, pressure bag, pultrusion, manual lay-up, injection)
injection
whats not true about EDM a) low material removal rate b) long time to prepare c) workpiece must be conductive d0 can cut only one hole at a time
it can cut many holes
in solid state welding the temperatures at the welding interface will or will not exceed the melting point of the workpiece material
it will not
poly wood is what type of composite (fiber, particle, laminar, flake, filled or none of the above)
laminar
The ? the rake angle the sharper the the cutting edge.
larger
thermal cutting will produse more or less accurate tolerances than turning/milling
less
which has the least affect on chip type. machine tool horse power cutting speed workpiece material tool rake angle whether its in contiinuos contact
machine tool horsepower
is the electrode in arc welding consumable? ya nay or maybe
maybe
Qualities for tools: harder than workpiece, retain hardness at high temp, resist wear and thermal shock, impact resistant, chemically inert. do any of these have all of them? diamond ceramics HSS
no
increase in feed rate of drilling will make it smoother?
no
WHat has a more heat affected zone a) oxygen fuel cutting b) PAC c)AWM
oxygen fuel
which matrices is most common (polymer metal ceramic carbon)
polymer
EDM, the longer the on-tim the rougher or smoother the finish
rougher
resistance welding is used for welding sheets or bars
sheets
in a milling operation, if the surface generated is perpindicular to the cutter rotation axis is called (slab,face,end)
slab
is it slab, face or end milling that the surface is generated by teeth located on the periphery (only)
slab
up (conventional) and down (climb) miling refer to (slab,face,end)
slab and face (tricky)
which association is true in grinding vitrified, glass and organic, resin or the opposite
the first one
Flank wear occurs on ?
the tool face that interacts with the new workpiece
Electrical discharge machining. whats not a benefit a0 no cutting forces b) burr free c) very detailed d) tool never wears
the tool wears, lets be real
which matrix can be reused? thermo set or plastic
thermoplastic
in fusion welding, filler metals will always be, will never be, or may or may not be used
they could be used
In both USM and RUM, the tool vibrates at super high frequency
true
both USM and RUM are NTM proccess
true
in USM, an abrasive slurry is used while in RUM a fixed abrasive is used
true
in ultrasonic machining either the tool or the workpiece can vibrate at super high frequency
true
t/f Some shapes cant be made with filament winding
true
up or down milling will create a thin chip ath the beginning and then a thick chip at the end
up
up or down milling will require a higher clamping force
up
up or down milling will the surface scalle not affect tool life
up
the consumables in AWM will or will not be consumed
will
honing after drilling will make it smoother?
yes
increase of drill rotation speed will make it smoother?
yes
is a brazed joint stronger than a soldered joint?
yes
reaming after drilling will make it smoother?
yes