JPS5510305A - Start control method of keyhole welding - Google Patents
Start control method of keyhole weldingInfo
- Publication number
- JPS5510305A JPS5510305A JP8188578A JP8188578A JPS5510305A JP S5510305 A JPS5510305 A JP S5510305A JP 8188578 A JP8188578 A JP 8188578A JP 8188578 A JP8188578 A JP 8188578A JP S5510305 A JPS5510305 A JP S5510305A
- Authority
- JP
- Japan
- Prior art keywords
- time
- keyhole
- travelling truck
- production
- make
- 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
Links
Abstract
PURPOSE: To obviate the production of internal defects by stopping the travelling truck which has already moved at the start part until a keyhole is formed or for the specified time immediate before this.
CONSTITUTION: Holding time Ts of start current Is is provided at the start part to make the shape 5 of reinforcement of weld smoother. At the same time, the travelling truck is temporarily stopped by the t time to allow penetration to increase during this time and make the keyhole easier to be formed, so that no defects such as inclusion of gas, etc. will be produced in the inside at the restarting of the travelling truck. This method reduces heat input given to molten pool because the travelling truck is held stopped from the start current Is lower than the current value IH at the keyhole welding, hence the production of burn-through is suppressed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8188578A JPS5510305A (en) | 1978-07-07 | 1978-07-07 | Start control method of keyhole welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8188578A JPS5510305A (en) | 1978-07-07 | 1978-07-07 | Start control method of keyhole welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5510305A true JPS5510305A (en) | 1980-01-24 |
Family
ID=13758895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8188578A Pending JPS5510305A (en) | 1978-07-07 | 1978-07-07 | Start control method of keyhole welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510305A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5018816A (en) * | 1990-06-11 | 1991-05-28 | Amp Incorporated | Optical delay switch and variable delay system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132445A (en) * | 1974-09-13 | 1976-03-19 | Kubota Ltd | PURAZUMAAAKUYOSETSUNOSUTAATOHOHO |
-
1978
- 1978-07-07 JP JP8188578A patent/JPS5510305A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132445A (en) * | 1974-09-13 | 1976-03-19 | Kubota Ltd | PURAZUMAAAKUYOSETSUNOSUTAATOHOHO |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5018816A (en) * | 1990-06-11 | 1991-05-28 | Amp Incorporated | Optical delay switch and variable delay system |
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