GB2240888A - Pulse welding apparatus - Google Patents
Pulse welding apparatusInfo
- Publication number
- GB2240888A GB2240888A GB9025723A GB9025723A GB2240888A GB 2240888 A GB2240888 A GB 2240888A GB 9025723 A GB9025723 A GB 9025723A GB 9025723 A GB9025723 A GB 9025723A GB 2240888 A GB2240888 A GB 2240888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse
- welding
- arc
- short
- circuiting
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/02—Regulating electric characteristics of arcs
- G05F1/08—Regulating electric characteristics of arcs by means of semiconductor devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
- B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits
- B23K9/093—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits the frequency of the pulses produced being modulatable
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
A pulse welding apparatus such as of arc welding or short-circuiting arc welding that effects the welding utilizing pulse discharge that develops at the tip of a wire electrode, wherein undercut which is a defect in the shape of welding beads develops which deteriorates the welding when the timing for removing the molten mass grown at the tip of the wire electrode is delayed due to a change in the welding condition or disturbance. To eliminate this defect, the pulse current fed to the material to be welded is divided into a plurality of pulse groups, the pulse groups are allowed to have an average current of a maximum peak after a predetermined period of time has passed from the start of the pulse, the pulse current groups are allowed to have a mountain shape in compliance with the removing phenomenon of the molten mass, and pulse period, pulse width and pulse gap of pulse current groups are differed depending upon the wire feed speed or the pulse group period. In the short-circuiting arc welding method, furthermore, the short-circuiting and arcing periods are instantaneously controlled depending on the detected arc length or the wire feed speed to quickly obtain ideal arc length. By so doing, the molten mass can be regularly removed and moved onto the material to be welded. Even in the short-circuiting arc welding, furthermore, variation decreases between the short-circuiting period and the arcing period. Therefore, growth and removal of the molten mass can be controlled independently of the magnetic blow phenomenon of arc, and favorable welding is carried out to improve the quality irrespective of a change in the shape of welding joint and earth point in real arc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9319023A GB2268009B (en) | 1989-02-27 | 1993-09-14 | Pulse welding apparatus |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4593589 | 1989-02-27 | ||
JP5696089 | 1989-03-09 | ||
JP10276589 | 1989-04-21 | ||
JP10276789 | 1989-04-21 | ||
JP10276889 | 1989-04-21 | ||
JP10276689 | 1989-04-21 | ||
JP10276989 | 1989-04-21 | ||
JP15741489 | 1989-06-20 | ||
PCT/JP1990/000247 WO1990009858A1 (en) | 1989-02-27 | 1990-02-27 | Pulse welding apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9025723D0 GB9025723D0 (en) | 1991-01-09 |
GB2240888A true GB2240888A (en) | 1991-08-14 |
GB2240888B GB2240888B (en) | 1994-09-14 |
Family
ID=27572337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9025723A Expired - Fee Related GB2240888B (en) | 1989-02-27 | 1990-11-27 | Pulse welding apparatus |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2240888B (en) |
WO (1) | WO1990009858A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0570678A1 (en) * | 1992-05-20 | 1993-11-24 | kabelmetal electro GmbH | Method for controlling the welding current in response to the welding speed in arc welding devices |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6154512B2 (en) * | 1978-02-01 | 1986-11-22 | Honda Motor Co Ltd | |
JPS61266180A (en) * | 1985-05-20 | 1986-11-25 | Toyota Motor Corp | Arc welding equipment |
JPS6245025B2 (en) * | 1981-01-14 | 1987-09-24 | Sansha Electric Mfg Co Ltd | |
JPS6254585B2 (en) * | 1981-04-10 | 1987-11-16 | Mitsubishi Electric Corp | |
JPS6348633B2 (en) * | 1980-07-08 | 1988-09-29 | Mitsubishi Electric Corp | |
JPS6356029B2 (en) * | 1979-11-07 | 1988-11-07 | Mitsubishi Electric Corp |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56139286A (en) * | 1980-03-31 | 1981-10-30 | Mitsubishi Electric Corp | Pulse arc welding equipment |
DE3213278A1 (en) * | 1981-04-10 | 1982-11-18 | Mitsubishi Denki K.K., Tokyo | SHORT-CIRCUIT ARC WELDING WELDING MACHINE |
JPS58116164U (en) * | 1982-01-22 | 1983-08-08 | 株式会社ダイヘン | arc welding machine |
US4866247A (en) * | 1986-12-11 | 1989-09-12 | The Lincoln Electric Company | Apparatus and method of short circuiting arc welding |
JP2571708B2 (en) * | 1987-12-09 | 1997-01-16 | 三菱電機株式会社 | Pulse welding equipment |
US4994646A (en) * | 1988-05-19 | 1991-02-19 | Mitsubishi Denki Kabushiki Kaisha | Pulse arc discharge welding apparatus |
WO1990009857A1 (en) * | 1989-02-28 | 1990-09-07 | Mitsubishi Denki Kabushiki Kaisha | Pulse welding apparatus |
JPH10254385A (en) * | 1997-03-11 | 1998-09-25 | Stanley Electric Co Ltd | Led dot matrix display device and gradation display method therefor |
JPH10266180A (en) * | 1997-03-21 | 1998-10-06 | Komatsu Ltd | Fluidized backfilling method and its equipment |
-
1990
- 1990-02-27 WO PCT/JP1990/000247 patent/WO1990009858A1/en unknown
- 1990-11-27 GB GB9025723A patent/GB2240888B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6154512B2 (en) * | 1978-02-01 | 1986-11-22 | Honda Motor Co Ltd | |
JPS6356029B2 (en) * | 1979-11-07 | 1988-11-07 | Mitsubishi Electric Corp | |
JPS6348633B2 (en) * | 1980-07-08 | 1988-09-29 | Mitsubishi Electric Corp | |
JPS6245025B2 (en) * | 1981-01-14 | 1987-09-24 | Sansha Electric Mfg Co Ltd | |
JPS6254585B2 (en) * | 1981-04-10 | 1987-11-16 | Mitsubishi Electric Corp | |
JPS61266180A (en) * | 1985-05-20 | 1986-11-25 | Toyota Motor Corp | Arc welding equipment |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0570678A1 (en) * | 1992-05-20 | 1993-11-24 | kabelmetal electro GmbH | Method for controlling the welding current in response to the welding speed in arc welding devices |
US5440097A (en) * | 1992-05-20 | 1995-08-08 | Kabelmetal Electro Gmbh | Process for controlling the welding current as a function of welding speed in arc welding equipment |
Also Published As
Publication number | Publication date |
---|---|
WO1990009858A1 (en) | 1990-09-07 |
GB9025723D0 (en) | 1991-01-09 |
GB2240888B (en) | 1994-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
746 | Register noted 'licences of right' (sect. 46/1977) |
Effective date: 19960611 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020227 |