机械制造技术2021秋季学习通超星期末考试答案章节答案2024年

机械制造技术2021秋季学习通超星期末考试章节答案2024年What

does

“tooling”

mean?

答案:Preparing

tools/star3/origin/2a7b2aa6d3e1453dca513b0c33eef20f.jpg

答案:①What

is

“travel

distance”

in

terms

of

machining?

(

)

答案:Distance

of

feed

motionCompare

to

finishing,

roughing

has

(

).

答案:larger

feed

and

larger

cutting

depthTo

remain

a

constant

cutting

speed

turning,

spindle

speed

should

be

(

)atlargerworkpiece

diameter.

答案:decreased/star3/origin/ca2650fd84815b1f2cd18d689df66730.jpg

答案:cutting

depthThe

purpose

of

“5S

system”

is

to

(

).

答案:all

of

the

aboveWhat

does

“Takt

time”

mean?

(

)

答案:Time

allowed

to

make

each

productThe

core

idea

of

just-in-time

is

(

).

答案:all

of

the

above“Jidoka”

means

(

).

答案:automaticstoppingLean

manufacturing

is

looking

for

(

).

答案:minimum

wasteCost

of

per

product

(

)

with

the

production

lot

size.

答案:decreasesProduction

line

is

applied

on

(

).

答案:mass

manufacturing“Jobbing”

means

producing

products

(

).

答案:in

very

small

quantity/star3/origin/f801dbd6c189e347041b787d6ba9b0ce.jpg

答案:Unnecessary

cutting

required/star3/origin/31e4a220a2304d1d3da23791c2c79408.jpg

答案:Extracuttingtoolsrequired/star3/origin/a3be4e5a22aa38b0a8606a59bd30c0c9.jpg

答案:Lack

of

tool

relief

space/star3/origin/7b289fef92392b18fdf7840c113d1150.jpg

答案:UnbalancedcuttingforceCNC

machine

tools

are

(

),

so

they

can

make

products

exactly

the

same.

答案:controlled

by

programsOn

a

CNC

lathe,

cutting

tool

is

driven

by

(

).

答案:servomotorsA

milling

machine

that

can

use

different

tools

to

automatically

perform

a

variety

of

machining

processes

is

called

(

)

答案:machining

centerACNCmachine

tool

can

use

different

tools

to

perform

turning,

milling,

and

drilling

continuously

is

called

(

)

答案:turning

centerDeburring

process

is

to

(

).

答案:remove

sharp

edgesGear

teeth

can

be

produced

by

(

).

答案:all

of

the

aboveElectrical

discharge

machining

can

cut

the

workpiece

(

).

答案:all

of

the

aboveWire

EDM

cuts

metals

by

(

).

答案:high

temperatureThe

purpose

of

sand

blasting

is

(

).

答案:cleaningElectrical

discharge

machining

CANNOT

be

used

to

cut

(

).

答案:plasticWhichofthefollowingprocessescanmakethebestsurfacesmoothness?

答案:Honing(

)

is

the

cutting

tool

used

in

honing.

答案:Abrasive

stoneWhich

of

the

followingprocessesis

NOT

an

abrasive

machining

process?

答案:TappingGrinding

wheel

dressing

is

to

(

).

答案:recover

cutting

function/star3/origin/a3132b1a2e411f01e0e1934c0fb1952b.jpg

答案:broachingWhich

process

CANNOT

be

a

reciprocating

machining?

答案:ReamingWhich

process

is

a

kind

of

reciprocating

machining?

答案:PlaningPlaning

process

is

applied

on

(

)

答案:rough

surface

flating/star3/origin/8b47cc2df122f76018855d741c3109b3.jpg

答案:slottingTapping

processes

areto

make

(

).

答案:threadsGun

drilling

processesareto

make

(

).

答案:deep

holesWhich

machine

tool

is

used

to

make

holes

in

large

workpieces?

答案:radial

drilling

machineThe

process

to

enlarge

diameter

of

an

exsiting

hole

is

known

as

(

).

答案:core

drillingReaming

processesareto

make

(

).

答案:accurate

holesBoring

processes

areto

make

(

).

答案:accurate

holesFace

milling

is

to

make

a

(

).

答案:flatsurfaceBoring

processescanbedone

ona(

).

答案:both

of

the

above/star3/origin/69e7ba688ca9a7a124716d0e01925540.jpg

答案:TurningA

collet

chuck

is

used

to

hold

(

).

答案:a

bar

stockTo

operate

a

lathe,

you

should

NOT

wear

(

).

答案:glovesKnurling

process

is

to

make

a

(

)

答案:pattern“Lathe

dog”

is

used

to

(

).

答案:drive

the

workpieceWhat

kind

of

lathe

fixture

is

used

to

hold

a

thin

wall

hollow

workpiece?

(

)

答案:mandrelWhat

kind

of

lathe

fixture

is

used

to

produce

a

long

and

slender

workpiece?

(

)

答案:steady

restGrinding

wheels

are

(

)

cutting

tools.

答案:abrsiveMetal

cutting

does

NOT

change

(

)

of

a

workpiece.

答案:materialDrill

bits

are(

)cuttingtools.

答案:multi-pointMachine

tools

are

used

to

(

).

答案:all

of

the

aboveWhich

is

a

potential

hazard

when

operate

a

machine

tool?

答案:all

of

the

aboveCutting

tools

must

be

(

).

答案:all

of

the

above(

)

machine

tools

are

widly

applied

in

modern

flexible

manufacturing

system.

答案:CNCInternal

turning

cutters

are(

)cuttingtools.

答案:single-pointJigs

and

fixtures

CANNOT

(

).

答案:extend

cutting

tool

lifeThe

welding

defect

of

entrapping

nonmetallic

material

in

weld

metal

is

known

as

(

).

答案:inclusionEvaluating

weld

quality

by

break

the

workpiece

to

test

its

strength

is

known

as

(

)

答案:destructive

testingWelding

distortion

is

caused

by

(

).

答案:rapid

heating

and

coolingWeld

quality

can

be

examined

by

(

).

答案:all

of

the

aboveIn

soldering

process,

the

melt

point

of

filler

metal

is

below(

).

答案:450℃/star3/origin/99b8a8d93b8f45dfc4cab00b749c4da1.jpg

答案:thermite

weldingIn

brazing

or

soldering

process,

melting

point

of

the

filler

metal

is

(

)

the

metal

to

be

joined.

答案:lower

thanWhich

of

the

following

is

solid

state

welding?

(

)

答案:ColdweldingWhich

of

the

following

is

NOT

solid

state

welding?

(

)

答案:Resistance

weldingSolid

state

welding

does

NOT

require

(

).

答案:electrodesWhich

welding

process

is

suitable

to

join

tubular

parts

in

mass

production?

(

)

答案:Friction

weldingWhich

welding

process

can

ONLY

be

applied

on

sheet

metals?

(

).

答案:Resistance

weldingWhat

is

the

temperature

in

an

electric

arc

welding?(

)

答案:5000-6000°CWhich

of

the

following

is

NOT

fusion

welding?

(

)

答案:Friction

weldingAC

welding

machine

can

be

used

on

(

).

答案:steelDC

welding

machine

can

be

used

on

(

).

答案:all

of

the

aboveAcetylene

gas

(C2H2)

is

(

).

答案:all

of

the

aboveFusion

welding

joins

two

parts

by

(

).

答案:high

temperatureThe

welding

process

using

flooding

gas

(e.g.

Ar/He/CO2)

to

improve

welding

quality

is

known

as

(

).

答案:gas

metal

arc

weldingThe

welding

process

using

arc

shielding

by

a

cover

of

granular

flux

is

known

as

(

).

答案:submerged

arc

welding/star3/origin/75498096b5f06ef9369a9c0b5cf4b217.jpg

答案:PressworkWhich

product

CANNOT

be

made

by

extrusion

process?

答案:Valvebodies

/star3/origin/6ae9fe5bd0a2f14c9a625cb92c2da00a.jpg

答案:Presswork/star3/origin/f908a677d05c878d98a56710b47d3593.jpg

答案:Presswork/star3/origin/0c0906c4d442b8114566eaf8774d29e9.jpg

答案:RollingPrecise

forging

is

known

as

(

).

答案:flashless

forgingOpen-die

forging

is

to

make

a

blank

to

be

(

).

答案:shorter

and

thickerForged

parts

have

(

)

答案:both

of

A

and

BWhich

forging

machine

produces

the

largest

press

force?

(

)

答案:Hydraulic

pressAsaforgingmachine,hydraulicpresscanproduceaforceof(

)

答案:80000tonsForging

is

economical

for

(

).

答案:large

quantity

productionUpset

forging

is

known

as

(

).

答案:headingAs

a

forging

machine,

gravity

drop

hammer

can

produce

a

force

of

(

)

答案:20tonsIn

a

rolling

process,

the

metal

is

(

)

答案:plastically

deformedRolling

process

is

applied

to

produce

(

)

答案:all

of

the

aboveWhich

casting

process

can

provide

the

products

the

highest

mechanical

properties?

(

)（哪种铸造方式获得的铸件机械性能最好？）

答案:Squeeze

casting/star3/origin/25fa4a19808a30a71a7a5e51d5ccbcd6.jpg

答案:CastingInvestment

casting

is

applied

to

produce

(

)

答案:all

of

the

aboveWhich

is

the

advantage

of

die

casting?

(

)

答案:good

surface

quality/star3/origin/b76e7a465a8d2c7917bfd43c0b687f94.jpg

答案:WeldingWhich

kind

of

metals

is

commonly

used

in

die

casting?

答案:Aluminium/star3/origin/25dd322978e5947704c7f71d7eb488c3.jpg

答案:CastingCentrifugal

casting

is

suitable

to

produce

(

).

答案:hollow

cylindrical

partsDefect

of

cavities

in

casting

is

caused

by:

(

)

答案:metal

shrinkage(

)

is

an

incomplete

casting.（以下哪项属于铸件不完整缺陷）

答案:misrunWhich

metal

does

NOT

shrink

during

casting

process?

(

)

答案:gray

iron(

)

is

a

defective

surface

of

casting.（以下哪项属于铸件表面缺陷）

答案:cold

lapsCasting

sandsshouldhave(

)

答案:all

of

the

aboveIn

a

sand-casting

mould,

the‘core’is(

)

答案:both

of

the

above/star3/origin/6c50a770306ba26aa9a9fe23477481f9.jpg

答案:Sand

casting/star3/origin/3a3c951f3d8132b90e02aa593b06201f.jpg

答案:Sand

castingSand

casting

pattern

design

shouldtake(

)intoconsideration.

答案:all

of

the

above/star3/origin/3a350eedc85a3b25889ebc7f80f85aca.jpg

答案:riserWhy

do

casting

processes

produce

minimal

waste?

答案:Because

excess

metal

can

be

used

againCasting

process

can

be

applied

on

metals

and

(

)

答案:plastics(

)

can

be

used

in

casting

process

答案:all

of

the

aboveIndustry

4.0islookingfor(

)

答案:customizationPolymers

usually

referto

(

)

答案:plasticsIndustry

3.0

realizes(

)

答案:flexibilizationWhat

is

a

sub-assembly?

答案:部件Manufacturing

converts

(

)

into

products

答案:materials这门课的成绩由几项考核组成？

答案:4项该课程使用双语授课、英语考试的目的是：

答案:以上均正确这门课的主要内容是什么？

答案:机械制造工艺与技术如果期末卷面考试只得了30分，意味着：

答案:平时作业、综合设计、在线学习需要更努力的完成如果期末卷面考试得了90分，意味着：

答案:得到了大约18分的总评成绩关于上课缺席、迟到的理解，以下正确的是：

答案:以上均正确如果考试或书面作业被证明是抄袭的，惩罚是：

答案:抄袭者和提供答案者均得零分在线学习占本课程总成绩比重约为（

）

答案:40-50%In

a

flexible

manufacturing

system,

AGVs

are

used

for

(

).

答案:m