01 Ke eng akopanetsoe
Lenonyeletso le tjheseletsang le bolela lenonyeletso leo ho lona ho hokelwang disebediswa tse pedi kapa ho feta ka ho tjheseletsa. The welded joint of fusion welding e bopjwa ke ho futhumala ha selehae ho tswa mohloding wa mocheso o phahameng wa mocheso. Lenonyeletso le cheselitsoeng le na le sebaka sa fusion (weld zone), mohala oa fusion, sebaka se amehileng ke mocheso, le sebaka sa tšepe sa motheo, joalo ka ha ho bonts'itsoe setšoantšong.
02 Lenonyeletso la marako ke eng
Mohaho o sebelisoang ka tloaelo ho tjheseletsa ke lenonyeletso moo likarolo tse peli tse hokahaneng li cheselitsoeng sefofaneng se le seng kapa arc bohareng ba lenonyeletso. Tšobotsi ke mocheso o ts'oanang, matla a ts'oanang, 'me ho bonolo ho netefatsa boleng ba welding.
03 Ke eng atjheseletsa groove
E le ho etsa bonnete ba ho kenella ka hare le boleng ba manonyeletso a tjheselitsoeng, le ho fokotsa deformation ea tjheseletsa, manonyeletso a likarolo tse cheselitsoeng ka kakaretso a sebetsoa pele ho libopeho tse fapaneng pele ho tjheseletsa. Li-groove tse fapaneng tsa welding li loketse mekhoa e fapaneng ea ho tjheseletsa le botenya ba weldment. Mefuta e tloaelehileng ea li-groove e kenyelletsa: Sebopeho sa I, V-shaped, U-shaped, unilateral V-shaped, joalo-joalo, joalokaha ho bontšitsoe setšoantšong.
Mefuta e tloaelehileng ea li-groove tsa manonyeletso a butt
04 Tšusumetso ea Butt Joint Groove Foromo hoLaser Arc Composite Welding
Ha botenya ba workpiece e cheselitsoeng e ntse e eketseha, ho finyella welding e le 'ngoe le ho etsoa ka mahlakoreng a mabeli a lipoleiti tse mahareng le tse teteaneng (laser matla<10 kW) hangata e ba thata haholoanyane. Hangata, maano a fapaneng a ho tjheseletsa a hloka ho amohelwa, joalo ka ho rala liforomo tse nepahetseng tsa li-groove kapa ho boloka likheo tse itseng tsa ho tjheseletsa, e le ho fihlela tjheseletsa ea lipoleiti tse mahareng le tse teteaneng. Leha ho le joalo, ts'ebetsong ea tjheseletso ea 'nete, ho boloka likheo tsa docking ho tla eketsa bothata ba lisebelisoa tsa welding. Ka hona, moralo oa groove o ba oa bohlokoa nakong ea ts'ebetso ea welding. Haeba moralo oa groove o sa utloahale, botsitso le katleho ea welding e tla ameha hampe, hape e eketsa kotsi ea liphoso tsa welding.
(1) Sebopeho sa groove se ama ka ho toba boleng ba seam sa weld. Moralo o loketseng oa groove o ka etsa bonnete ba hore tšepe ea welding e tlatsitsoe ka botlalo ka har'a seam, ho fokotsa ho hlaha ha liphoso tsa welding.
(2) Sebopeho sa geometri sa groove se ama tsela eo mocheso o fetisetsoang ka eona, e ka tataisang mocheso hantle, ho finyella mocheso o ts'oanang le ho pholisa, le ho thusa ho qoba ho senyeha ha mocheso le khatello ea kelello e setseng.
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Joalokaha ho bontšitsoe setšoantšong sa 3, bafuputsi ba fumane hore ho sebelisa laser arc composite welding (laser power 4kW) ho ka tlatsa groove ka mekhahlelo e 'meli le lipase tse peli, ka katleho ho ntlafatsa katleho ea welding; Ho tjheseletsa ntle ho sekodi ho 20mm thick MnDR ho ile ha finyellwa ho sebediswa tjheseletsa e kopanyang ya laser arc composite (matla a laser a 6kW); Laser arc composite welding e ne e sebelisetsoa ho tjheseletsa tšepe ea 30mm e teteaneng ea khabone e tlase ka mekhahlelo e mengata le lipase, 'me morphology ea karolo e fapaneng ea lenonyeletso e ne e tsitsitse ebile e le ntle. Ho feta moo, bafuputsi ba fumane hore bophara ba li-grooves tse nang le mahlakore a mabeli le li-angles tsa li-grooves tse bōpehileng joaloka Y li na le tšusumetso e kholo ho sepakapaka sa sebaka. Ha bophara ba groove e khutlonnetsepa ke≤4mm le angle ea groove e bōpehileng joaloka Y ke≤60 °, morphology ea karolo ea sefapano ea seam ea weld e bonts'a mapetsong a bohareng le li-notch tsa marako a mahlakoreng, joalokaha ho bontšitsoe setšoantšong.
Phello ea Foromo ea Groove ho Cross Section Morphology of Welds
Tšusumetso ea Bophara ba Groove le Angle on the Cross Section Morphology of Welds
05 Kakaretso
Khetho ea mofuta oa groove e hloka ho nahanisisa ka botlalo litlhoko tsa mosebetsi oa welding, litšoaneleho tsa thepa, le litšoaneleho tsa ts'ebetso ea welding ea laser arc composite. Moralo o nepahetseng oa li-groove o ka ntlafatsa ts'ebetso ea welding le ho fokotsa kotsi ea bofokoli ba welding. Ka hona, khetho le moralo oa sebopeho sa groove ke ntlha ea bohlokoa pele ho welding ea laser arc composite ea lipoleiti tse mahareng le tse teteaneng.
Nako ea poso: Nov-08-2023
