JPS5584270A - Three o'clock plasma keyhole welding method - Google Patents

Three o'clock plasma keyhole welding method

Info

Publication number
JPS5584270A
JPS5584270A JP15641078A JP15641078A JPS5584270A JP S5584270 A JPS5584270 A JP S5584270A JP 15641078 A JP15641078 A JP 15641078A JP 15641078 A JP15641078 A JP 15641078A JP S5584270 A JPS5584270 A JP S5584270A
Authority
JP
Japan
Prior art keywords
works
molten metal
upward
plasma arc
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15641078A
Other languages
Japanese (ja)
Inventor
Akiyoshi Imanaga
Hironari Taguchi
Mitsuaki Haneda
Koichiro Furusawa
Masatoshi Kanamaru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15641078A priority Critical patent/JPS5584270A/en
Publication of JPS5584270A publication Critical patent/JPS5584270A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To push up and hold molten metal with a plasma arc and prevent the formation of under-cuts and blowholes by tilting the plasma torch upward to the works and welding the works.
CONSTITUTION: A plasma torch 1 is tilted upward with respect to horizontal by making its angle α to the works 3, 3' at 0<α≤30°. In this way, the molten metal is pushed up and held by the upward plasma arc 2. A filler metal 5 is fed from forward of the plasma arc 2 at a suitable insertion angle and the filler metal feed angle β is tilted within a range of 0<β≤30° with respect to the weld line 6 and while the filler metal is contact-moved to the surface or molten pool of the works 3, 3', welding is done. then, the molten metal is pushed up to the bead upper side where the molten metal tends to become short, whereby it is replenished.
COPYRIGHT: (C)1980,JPO&Japio
JP15641078A 1978-12-20 1978-12-20 Three o'clock plasma keyhole welding method Pending JPS5584270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15641078A JPS5584270A (en) 1978-12-20 1978-12-20 Three o'clock plasma keyhole welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15641078A JPS5584270A (en) 1978-12-20 1978-12-20 Three o'clock plasma keyhole welding method

Publications (1)

Publication Number Publication Date
JPS5584270A true JPS5584270A (en) 1980-06-25

Family

ID=15627128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15641078A Pending JPS5584270A (en) 1978-12-20 1978-12-20 Three o'clock plasma keyhole welding method

Country Status (1)

Country Link
JP (1) JPS5584270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111633303A (en) * 2020-04-30 2020-09-08 北京卫星制造厂有限公司 Aluminum alloy variable polarity plasma arc piercing welding arc starting and stopping quality control method and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111633303A (en) * 2020-04-30 2020-09-08 北京卫星制造厂有限公司 Aluminum alloy variable polarity plasma arc piercing welding arc starting and stopping quality control method and system

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