WELDlNGHEAT SOURCE

CHINESE JOURNAL OF MECHANICAL ENGINEERⅡ呵G
・5ll・
、b1_17.No 4.2004
MODEL OF LASER-TlG HYBRlD
Chen Yanbin
WELDlNG HEAT SOURCE
Li Liqun
Feng XiaOsOng
cllI蝴t。the wel抽g口rocess
panems:deep_p∞d州衄welding
hybdd welmng is p坨s鼬ted As
conductive welmng.The he甜now model of
Fang Junfei
to
and heat
deep—pene廿aⅡon
f胁The
he砒source ofhe砒
weldinE,the he砒souKe inchldes a su—hce hcat fhⅨand a volume beat
conductlve welding is composed oftwo Gaussi柚dis埘bu把surface he砒sources Witll mis heat source
code MARC is em口10”d for mis purpose
modeI,a把m口e扭hⅡe neld is calculated The f.mne
S怡teKey Labom幻ⅣofAdvanced
P州uclion砌nolog*
weIding
HarbIn ln酬lufe of
With Ihe vari撕on
Absh'ct:The welding mechamsm oflase}TIG hyb^d welding proc船s is妯myzed
of arc
is di“ded int0 two
TechnOlOgn
The
Harbm 150001 China
c“c11l撕on resulb show
el锄em
a肿amm with廿1e唧erim册tal
good
a
l(eywords:La卵r-TIG hvbndwel击ng
Hem
source
model
Dec口一口eneⅡn幻nweldin2
Temper№neld
da诅
11eat
cqn山尬dvewelding
Dl姗a
1船er induced Dlasma is above 8 000 K.The
reduces tlle
rcsis诅nce ofarc circuit so that血e elec血citv condllction is easieL
INTRoDUCTION
0
In laser.TIG
hvbdd weldin臣arc诬a坩acted and compressed
due to血e keyhole e彘ct induced by 1aser:tlle di锄eter ofarc mot
1s rcduced.As a remnL the cunEⅡt densitv increases and tlle
welding p∞e仃ation i皿proves The energy coupling be押ecn l心玎
and arc h髂a strong innuence on arc shape蚰d welding quali吼
And it is the main Dhysical州nci口1e ofme hvbdd weldi士lg
The energy
is rc“ized by the keyhole mech如i锄in
tmsfcr
hyMd de印-p∞∞Ⅲion
welding.In tllis regard,it is
si商lar
to
sophis廿c舭d
tllemlal force inter‘ac吐on in
kevhole粕d 11le addition of arc.n is di伍cuh t0 establish也e hv—
b^d welding hcat source model_
As t0 hcat缸彻s衙model oflaser weldin毛D.T SwiR-Hook
髓dA E FGick…Dresenccdtlleline heat source aImst Inme打
lascr weld:ing.Due
to
ns
model,l船er beaIn w船assumed as a unifor士n moving 1ine source
mrou曲me weldlIlent This model only adap拓to pene仃ation
welding of也e thin sheet Based on tlle line heat sdIlrce model,W
Dowdcll,et alH devel叩ed the poim—line heat
model.A point source close to the surfke ofme workpiece
was added to tlle 1ine source.whidl was
to be unifom iIl
M
Steen and J
source
ass啪ed
tllicl【ness.H.E.C1ine蚰d—R Anthony”o肿)posed an exp0一
nemial a饥enuati加oftlle temDeIamre in the thickness dircction.P
t11e
a
G.KlemensL…produced
balance amOng
more
vapOr prcssure
l叫hole,surfhce
tension
hydI硼ynalIlic
kcvh01e
Fmnk,ct al”1 dcvelopcd a laser
welding口rocess model,in whlch a wctor array desc—bes Ihe in—
cident beam callsdc,including di行:rent focus positions relative to
tive
now ill tlle
weld pool
血e model gurfhce,the
ergv
d∞si饥All
R
len础w船used
vector
of these
models mdicatc
to
express血e
en-
some州nciples
of
de印・peIIe甘adon weldi“g t0 a certaill degree.
In this anicle.the heat订粕sfcr medlanism iIl laser-TIG hv—
bdd welding process is analyzcd firstly.Then,on血e basis ofthe
柚alvsis。也e hvbdd
heat
source
model is
presented and the reli—
abllitv ofthe modelis ved丘ed.
1
MECHANISM
oF
HEAT
LASER-TIG HYBRJD
TRANSFER
melt
Recelved
0dober
energy
14,2003;把ce押ed
accepted Septembcr 20,2004
万方数据
impmved.The depth.to.widtll r撕o of the weld bead is
deep.口ene垃adon welding.
With the incre昭e of arc cun℃nt,the laser be锄ener科ab—
so唧ion in arc incrcases.At me s锄e time,1船er beam is
defbcused.because of廿le r11inus lens effbct of the D1asma.As a
result。t11e diameter oflaser spot is cnl盯母ed,which decre船es the
ciency is
阱at
ln
intensi吼the
revised
and tlle welding rnode is
lascr cncrgy
densi吼wh∞the
surfhce is less t11all
peak power
densny
0n
mat∞al
Ihe
value,me keyhole disap-
Dears.Undcr血is circumst蛐ce,arc c蛐’t be amacted and com-
p陀ssed。and the TIG arc cOlumn will exp趾d Therefore,wh∞me
keyhole disappears the pene廿撕on d印m decre船es grcatly卸d the
weld
The weldin£mode convens into heat
cenain thresh01d
a
wi拙increases
conductive welding
2
MATHEMATICAL
HEAT
SoURCE
DESCRIPTIoN
IN
LASER-TIG
oF
WELDING
we★mOwmattherc arctwowelding p甜e玎1sinla-
t11e口anems can廿独sit whh me in—
crease of arc currcnt.In order to siTHulate mis physical process,
two Hnds of heat saurce models were pmposed to desc^be the
S0fhL
ser_ⅡG
hvbdd welding a11d
hybdd welding process.
2.1
Heat
source
model 0fdeep_peⅡetra廿on weldin2
amacted
me kevhole,and a maio—ty ofarc energy inpu拓into the work-
me keyhole.the remains which surrol|nds me key-
h01e in口uts into the workpiece bv me舭s of he砒conductlon,Arc
11l hvb—d dee口一口enetration weldin2口rocess,arc is
bv
piece幽ugh
vol啪e
肌d 1aser ener盯in
tIle keyhole 1s dcs嘶bed as
heat sollrce
G叭ssiaIl dis廿ibulion in t11e radial direcnon Arc energy
around the kevh01e 1s desc—bed as
heat source Therefbfe.
f醣hvb^d deep.口ene廿a石on weld抽如the heat source modelis the
coⅡlbin撕on of a volume heat source nlodel and a suIface heat
source model_
wi也a
s曲ce
intotwOparts
hi曲
temp啪姐‘e
f0皿Fehlary
THE
HYBRID
只=丘+昱=仉w=J。L exp(一3r2/e)2Ⅱ脚
is
f0肌in
the high
colum
crea8e
Arc ene‘gy,w11ich i“puts int0 the wod中iece,can be divided
IN
WELDING
In hybdd welding process,if lascr ene‘gy density
enough t0 mal(eⅡle matefial ev8porate,a keyhole will
p001.Due to
ofⅡ壕workpiece.which adv蛐tage t0 in-
de—
me Dene廿adon.Because tlle dimension of arc
creases greany,(he loss of arc cnergy rcduces and me heat e蹦-
easilv reach tlle deeD
so口11isticatcd modcl,in w11ich the
wnhiIl the
prcssure in tlle molten region sufrounding t11e
w船comidered J.MaZ【lmder aIld W M Ste∞”1 devel—
oped a numedcal model of laser welding They took into account
t11e anenuadon ofl踮er be啪in the thickness direction.J.G.An—
d|℃ws粕d D R.Amlcv【01 inves吐gated mree—dimensional convec-
and
TIG arcis rootcdtothepointofimDin鲇memoflaserbeaIn onthe
mat豇j“surfhce and a ma{odty of arc cunIent is forced to inpm
int0 me workpiece thI佻gh血e keyll01e.Therefore,arc enerl黟can
the
of
26,2004,
wherc
只——Tbtal
尸1——Arc power in血e keyhOle
P2——Afc powef su∞IlIlding me
厶——Peak power dclls姆ofarc
^——Arc radius
讯——Heat e瓶ciency 0f也e arc
arc
power t11at inputs int0 tlle
mat甜al
keyhole
(1)
Ch∞Y蛐bin,etal:M0del oflasepⅡG hybndweldlngheat soI聃e
‘512‘
尸1 and P2 c蚰be calculatcdwi血thefollo谢ng equ撕。璐
耳=f?L exp(一3,2/0)2nrdr
(2)
昱=j,L%p(一3r2/0)2础
(3)
The volume heat nux dens时in hybrid deep—pcnc廿ation
welding c蚰be w—tten船follows
E exp(一3r2/<)exp(一属^)+
whem h is t11e radius OfvOlume heat source.which relates t0血e
wi恤plasm,inv叭B埘n_
nle
Co璐equ即dy,
is considercd
a懒uation
1髂er power deIIsity is exponential
along the thicImess
di∞ction Arc Dow盯densi押in tlle thiclmess dircction is as目瑚ed
t0 be exoonential anenu吐ion.too The volume heat source dis订i-
wherc
related to tlle deD血of nle keyh01e,^m It can be calcu-
lated with a thfcsh01d pdwer dcnsi可五when tlle weldjng veloci可
is con砒越t.It is勰sumed mat when the peak口ower dcllsny is 1ess
value.the m砒edal c粕’t evaDomte舭d the
kevhole c蛐’t ex蛔ld to也e d∞per in也e nmt鲥a1.So,tlle口ower
densicy at me bonom of the keyhole is me threshold value,五.
Therefore,吐le peal【hy嘶d power d∞s时at a dep也in miclmess
c蛐be calculated as fbllows
ize
th锄nle衄sh01d
№ction
《唧(一成Ao)+‘唧(一届A0)=‘
E——Peak口owerdensityofarcvol啪eheat
where
(4)
source
^——Peak口owerdensi竹oflaserbeamin nlekevhole
卢4——Attcnu撕on coe伍∞ient ofarc energy
口1——Attenu鲥on coe伍cientoflaser口ower
^0——D印th of曲kcyh01e
^——11Iresh01d口ower dens埘
,:can be calculatcd w曲me f01lowi“g equadon
日=f JI exp(-3r2/寺)exp(一属^)2"埘
(5)
ⅣR
r=质ijr了,whichisme distallcetothe
where
the
s叫e
vol啪e heat
at
a
cenain dcplh in the
cenfer of
thichess d扛ec廿on,
vcloci吼fisthe岫e,Ristlle舢ge oflllevolume
visllleweldillg
heat
source in the radial direction,O~ro,which is related t0 the
radius ofthe keyhole,蚰d c柚be adjusted according to t11e pmcIi.
cal welding process,H is
of血e vOlume heat source
me啪ge
d印m,O瑚o
,,_!盟
r——Li血tofinccgmtion,“s r∞geis%一一
soune modeI o仆eat conduct‘ve welding
Heat
When
the
hyb五d
mcch卸i锄扛眦si扭曲m
welding
d∞p-pene廿adon weldi“g t0 heat conmIctive weldi“g,l嬲er beam
and
botll
arc are
des嘶bed
tbis鼢sidon
as
sumce heat
In order to Teal—
sOurce
c“cula蛀on,it is ass姗ed吐lat when t11e peak
pawer dens时inputted into me workpiece is morc tllall t11e
吐1]陀8hold value,the hyb—d heat source can make the matedal
e”印omte∞d thc kcyb01e f0H11s.Under tllis condition,me
weldi“g pⅢ盯n is
welding∞d llle k。yh01e has a
in
d。印-p∞e州on
d印m Wh曲Ⅱ1e
cenain
TIG arc cu玎ent is
dcns畸of hyb—d
value,the
peak powcr
decrc硒e,and tlle deplll
mo咒Ih锄aⅡⅡesh01d
heat
sollrce
begins to
ofthc keyh01e decreases correspondingly
keyh01e dis印pears,me welding p甜哪咖sits行Om
deep_pene仃撕on welding to heat conductive welding
Wh朗the
In heat
conductive weldin岛Ⅱ1e
s曲ce h哪nux
of
arc
heat
sourceis dc丘ncdby
以=‘exp(一3,/f)
w妇e
(12)
mxim-arc—ow“曲ns竹in m
L书等,“mc
heaIed盯ea
s曲ce
The
heat nux density oflaser heat
cul砒cd wim f0110wi士lg oqu砒ion
soIⅡce
can
be cal-
(13)
“=』Iexp(一2,2/12)
wherc,I:2里畔,is
tlle
peak
power
deIls蚵of
laser
heat
S01Jrce.
!
!
(11)
Ⅱ^
Thecquationof,。caIlbe、vri伽asfollows
~
su血ce hcalnux dcns姆c趾be dc6nedby
吼=吼=L elp(一打2/《)
2.2
bu廿on is
(10)
‘exp(之r2/12)exp(一届^)
radius of山e I【cvhole.
Bec跚se me kcvhole is舢cd
ss仃allhlg absor曲0n oflaser∞ergy
2
耳,2 g。+gI
:
Thereforc,in
碍l—cxp(一3%2/#)1一cxp(一屈^0)
so眦e is
heat
conductjve
weldi“g process,me heat
cOnlpOsed 0ftwopans
gs=以+gf=L exp(一3r2/0)+』Iexp(—2r2 7^2)
女————L一
“1一exp(一屈^0)
(6)
^can be calculated witlI t11e following emIation
3
咒=』』‘exp(一2r2 712)exp(一届^)2州m
FINITE
ELEⅧNT
MoDEL
oF THE
PERATURE FIELD IN HYBRlD
(7)
(14)
TEM-
WELDING
Ⅳ月
R=啊卯,which
where
P
and
nle mate—al
is
a
is the totallaser power inpuned into tlle
is l淞盯poweL确is the e历ciency of laser
workpiece
abso州on
surfhe
coemcient to
beanl。n is me radius ofl%cr s口ot.
Wh锄C02 l∞er irradiates alloyed neel
sur‰e
absorp石0n
cocmciem
a
c锄be
be锄,
on
s曲ce.tlle
its
calculatcd
l硒er
w油the
fol-
10wing equa廿0n
r1———’——=——————。—————:一
口=11.2√15×10“(1+1.5×10。r)
whe化P—S曲ce
tc“1pemnⅡe
Wh∞11le matedal
is
(8)
mehin岛a
ass岫ed
As
a
temp锄tIlrc excecds thc evapora廿on
ass眦e4tll砒100%1船er power is曲sorbcd
re8un,the
ternpera-
!
‘赢
!
caIl
and
(2)The hvbdd welding pmcess is a quasi—stable state
(3)The latent heat of evaporation is negIected and t11e啦ss
A halfmodel is emDloved iIl calculation because of tlle
symmetry ofthe workpiece,and t11e
plane is consid-
ercd to be adiabatic.And an the tllenno口hvsical pr叩enies are
syr砌emcal
be蛔nper№dep∞dent
Fi2 1 shows a口omon ofmesh used in血e model.The weld—
ing velocity direction is z—d打ection,pdircction is venical to the
weld曲g velocitv蚰d z-direcbon is tlle mic★mess direction Be—
一
cause
(9)
be calclllated wich
source
comi叫ous
considered to
1一唧(一2%2/12)1一exp(一届%)一
nlerefore,^o,』;粕d』l
肌d(91.
万方数据
0 9
eq删0nof^c粕be州n∞船f01lows
,一!旦墨
1’q2
be
to
Wben tlle surfhce
nJre,it is
are calculated with 6nite
presented above is employed
for也e calculation User-de6ned subrou廿nes arc com口iled to cou-
ple in me nnite elemem code MARC for nlis口urpose The f01一
lowin2船s11芏Il口tions are made in t11e fInite elemem model_
(1)The matcdal welded wnh hvb—d heat soIIrce is isonDpy
the heat
r朗noving is not considered
of山e wod中iece
is
anicle.temDera眦6elds
In this
el锄em m劬od卸d
Eqs.(4),(6)
of sbarp
mesh鲥ds
are
temperanJre盯adi蚰ts near tlle weld bead,丘ne
necessa弭The丘nite element code MARC has tlle
capability to perfoml ada口tive mesh rc丘n锄ent to improve the
accuracv oftlle soludon and a one.1evel adaDtive mesh re丘nement
is employed in t11e region ofthe voluIne heat source
里坚望竖!曼!里!坚塑!垒兰Q!M星曼坚:垒塑!堡垒兰!盟鱼堕里里墨型鱼
:!!!:
Fig.3 sllaws the cross secnons coInparison be晰ecn tlle甜mu-
lalcd rc吼d忸柚d the exp嘶m如tal∞sulb The dime越ions of the
weld bead are
comparcd be腑e∞the exp甜men协l results皿d
simulatcd rcslllts iⅡFig.4.n c袖be seen tllat thc simulaIed feslllts
agree wen wim me experiln∞tal da诅
Fig.1
4
Mesh ofthe FEM modd
(&)J=50A
SIM:ULATIoN RESUITS AND nISCUSSIoN
The above heat source modeI柚d FEM model are empIoyed
fbr也e tempem“Irc丘eld c“culation in hybdd welding,卸d也e
calculation results are comparcd wi血the exp嘶rnental da诅.In
cxpenments,廿le bead・Omplate weld8 are made on
AISB2】s喇nles5 sfcel specim髓s
TIG am
Tllr优-dimension
50A,130A粕d
wj幽砒l细t
t锄p钟atIl∞丘elds
sh啪inFig
4衄thick
cu栅t
of hybdd
190A cllIrent
are
welding witll
2.
(b),=130A
㈣
黼
\
蠊蒜蹬
(c),=190A
Fig 3
D【p酣mem酊and
Ofcross secHOns at
(a),茸50 A
(1as“power卢1
simln咖d碍辄hs
di丘b陀ntaⅡmt
000 w,weIdiⅡg
vcloc埘v=l
m衄n)
&
厶&&L
L
l\≈唔e,d0_口gu‰
L
L
(b)J;130A
量
t
也
I≥{Pl}屯|a事
邑
L
Current,,A
(c),=190A
T如p锄“睇dis删bud叩0ntop su曲∞of啪却Iece
Fj吕2
at
dif妇nt c峨nt m l聃e}TIG wdding pmcessing
0如erpowerP=l 000W weldmg
万方数据
veloc时Fl叫血)
(b)Weld谢dth
Fig 4
Comp一“g ofexpe五m蚰协l舭d simIlla刚
pool血nensions atdif触m cur"nt
(1ase‘pow日芦1
000 w'wclding
veloc时F1
m胁n)
・514・
ch∞Yhnbin,d m:ModeI ofl鹅ePnG hybrid welding
h the丘羽lrcs,、Ⅳe can 6nd tllat wi吐I协e increase of arc cur-
r蚰k the p朗e仃ation depth increases when the arc cu肿nt is not
very hi曲However,me p朗e仃ation d印lh decrc嬲es grcatly when
也e arc current is hi窖her tll柚a cer“n value because me kc、,h01e
disappe盯s The addmon of arc can enhance the powcr density of
血e bvbnd heat source when me arc cmT℃nt is not hi曲.粕d.the
power density decreases because the l髂er ener譬v absorbed bv arc
incre船es明d廿1e
m血s
cI】曲rged.Thercfm,wh∞
ofl踮盯spot is
11le arc cuITem is hiP血ef th卸a ccrtain value the kevhole disa口.
pears锄d the welding mode is heat conduc廿ve welmng舭d the
decrc踮es g他a11y T1lis mech锄ism
in也e
pene嘣ion
is唧lained
sectionl
References
1
tIvo
swlEHook
2
3
lmr
K】锄曲s
6
beex-
of
260
scannmg
J A∞1 Phys,1977,48(91:3 895 ̄3 900
He毗h蚰柚ce姐d now con凼tl衄s for elect∞beam and laser
A"1 Phys,1976.47r51:2 165 ̄2 174
Hen啪ns凫rmoddforCWl鹊盯mat耐al Droc-
J
M蛐d盯J,Stc∞WM
Phys,,1980,51(2):941埘7
嘲ing J Appl
And∞ws J G,A“bey D
by aM曲.pow盯beam
R
J
HydrodynaIIlic llmit协口e扯协mon ofa mnenal
Appl Ph粥,1976.9(12):218l也194
Fr蛐kR,Gun也盯R,He衄啪L s咖18曲nIechnlqu曲躯a协olfbrl鹊er
produn㈣站In:I却ld Ihtotyp证2
on∞ted
CoNCLUSIoNS
s0㈣del
P G
weldlⅡg
5
b锄wcl血z
He甜口e砒醯z孤dme№gm栅ialwi山a
el㈨beam
C|ineHE,A岫oDyTR
0r
4
wl血l肿蛆m州cd
D T'Gick A E F P髓endon wcldmg
l咕cr
c叩ab£矾es mav
teⅡdedt札f01d weld J Res Suppl.1973,(521:492 ̄499
S怔蚰WM,Dowden L Da订&M,nm A po缸andlme
k盯keyholcwclding.J.Pby8 D:A叩I.Ph”,1998。(21):1 255~l
shldy砌啪0酷恤t町sem
7
5
he缸so啉e
Menm2。Bcs蛐c蚰,FraⅡce,
1996.f2 7871:43—52
(1)L勰e卜nG arc hvbnd weldin窖mocess caIl be di“dcd into
welding modes:de印.p锄e扛adon welding and heat conduc.
廿ve welding
(2)As to diffcrem welding modes,“vo heat source models
developed:me heat source of me deep.口en出a廿on weldinz
includes a surface heat nux觚d a volume heat nux.wbose deDm
is decidcd by the衄cshold power densi母:廿le heat source of廿le
heat conducdve welding mode is composed of帆o G肌ssian dis.
埘bute surfhce heat nuxes.
are
(3)The tclIlper“吡e丘elds
of
calculafed witll t11e presented heat
rcsults show 8 good agrcement
sta“ess
sOIlrce
steel
bead weld
w岫me唧e打mental蛐.n
dic“tes mat the hybdd heat
血c actIlal
万方数据
in.
model c髓su伍ci即ny desc曲e
oflaser・T王G盯c hy晰d weldin吕
source
hcat廿ans船process
arc
mOdel_The sinlmatcd
LiL蛔岫1s
cmT刎ly蚰鹤socime pro岛ssormH曲血Ins廿tIlk
ofTbchnologn
Cbjna.shew幽{n恤丘ddofl碣盯fo幽t删nu瑚髑c蛆simul“oAofk蝌
wdd证gp∞ce嚣
Tel:+86_451—86415374;E-m蚰llllqlln固hlt
F印g)(i∞song
is
a
PhD咖d衄t
edu
cn
ofHarb访I∞6tLlk of Technolog弘chma
ofl鳃er wddmg
worb血血e丘e埘ofn岫耐c“s证ml“ion
He
mcess
1科:+86.451.86415374
Ju把沌a PhD咖dent of H砷in Instit咐of 1础nok阱Chln“He
wo血血血e蹦d ofnume血“simuMon越d q叫时con昀1 oflaserweldlng
F蚰g
p㈣
1bl:+86—451—86415374
MODEL OF LASER-TIG HYBRID WELDING HEAT SOURCE
作者:
作者单位:
Chen Yanbin, Li Liqun, Feng Xiaosong, Fang Junfei
State Key Laboratory of Advanced Welding Production Technology,Harbin Institute
of Technology, Harbin 150001,China
刊名:
机械工程学报(英文版)
CHINESE JOURNAL OF MECHANICAL ENGINEERING
2004,17(4)
1次
英文刊名:
年,卷(期):
被引用次数:
参考文献(7条)
1.Swif-HookDT;Gick A E F Penetration welding with lasers-analytical study indicates that present
laser beam welding capabilities may be extended tenfold 1973(52)
2.SteenWM;Dowden J;Davis M A point and line source model of laser keyhole welding 1998(21)
3.ClineHE;Anthony T R Heat treating and melting material with a scanning laser or electron beam
1977(09)
4.KlemensPG Heat balance and flow conditions for electro beam and laser welding 1976(05)
5.MAZUMDERJ;Steen W M Heat transfer model for CW laser material processing 1980(02)
6.AndrewsJG;Atthey D R Hydrodynamic limit to penetration of a material by a high-power beam 1976(12)
7.Frank R;Gunther R;Hermann L Simulation techniques as a tool for laser oriented product design 1996
本文读者也读过(10条)
1. Zhang Jianqiang.Zhang Guodong.He Jie.Wang Chengquan.Chen Bingquan The mechanical measuring method
of welding heat source efficiency[期刊论文]-中国焊接2007,16(4)
2. 刘会杰.藤井英俊.前田将克.野城清 Friction stir welding characteristics of two aluminum alloys[期刊
论文]-中国有色金属学会会刊(英文版)2003,13(5)
3. Chen Shanben.QIU Tao.Lin Tao.Wu Yixiong ON INTELLIGENTIZED TECHNOLOGIES FOR MODERN WELDING
MANUFACTURING[期刊论文]-机械工程学报(英文版)2003,16(4)
4. Pogrebisky David Experience in Welding of Extra Pure Hydrogen Filters and Catalytic Reactors
Design[会议论文]-2008
5. Xunhong Wang.Kuaishe Wang.Yang Shen.Kai Hu Comparison of fatigue property between friction stir
and TIG welds[期刊论文]-北京科技大学学报(英文版)2008,15(3)
6. Zheng Zhentai.Shan Ping.Hu Shengsun.Wei Xinwei.Yang Jinglei Numerical simulation of gas metal arc
welding temperature field[期刊论文]-中国焊接2006,15(4)
7. 陈彦宾.雷正龙.李俐群.吴林 Welding characteristics in different laser-TIG hybrid manners[期刊论文
]-中国焊接(英文版)2003,13(1)
8. Jiang Lipei.Jiao Xiangdong.Xue Long.Ma Hongze.Li Mingli.Yang Zhaochun FLEXIBLE MAGNETIC WHEEL
TYPE INTELLIGENT WELDING ROBOT FOR SPHERICAL TANK[期刊论文]-机械工程学报(英文版)2002,15(2)
9. 《机械工程学报》英文版2004年第17卷第4期目次、摘要预告[期刊论文]-机械工程学报2004,40(11)
10. 董志波.魏艳红.刘仁培.董祖珏 Three dimensional numerical simulation of welding temperature fields
in stainless steel[期刊论文]-中国焊接(英文版)2004,13(1)
引证文献(1条)
1.LEI Zhenglong.CHEN Yanbin.LI Liqun.WU Lin CHARACTERISTICS OF DROPLET TRANSFER IN CO2 LASER-MIG
HYBRID WELDING WITH SHORT-CIRCUITING MODE[期刊论文]-机械工程学报(英文版) 2006(2)
本文链接:http://d.g.wanfangdata.com.cn/Periodical_jxgcxb-e200404009.aspx