US 11,305,367 B2Granted

Non-consumable electrode arc-welding method

AssigneeDAIHEN Corporation

InventorsMichitaka Todo, Masatoshi Ooie, Toshiyuki Tanaka, Ichiro Umezawa

Life of this patent

Estimating the term…

Loading patent…

Abstract

A non-consumable electrode arc-welding method is provided for causing a welding machine to output or stop a welding current in accordance with at least an ON state and an OFF state of a start signal. In the method, a start signal is switched between an ON state and an OFF state, thereby controlling the on/off operation of the welding machine. Further, an operation mode instruction signal is switched between a normal mode and an interval mode, thereby controlling the operation mode of the welding machine. When the operation mode instruction signal indicates the interval mode and also the start signal is in the ON state, the welding current is outputted in a welding current output period. Then, the output of the welding current is suspended in a welding current interval period successively following the welding current output period.

Claims7

Dependent claims

A non-consumable electrode arc-welding method for causing a welding machine to output or stop a welding current for a single welding torch, the method comprising:

switching between an ON state and an OFF state of a start signal that controls an on/off operation of the welding machine;
and
switching between a normal mode and an interval mode of an operation mode instruction signal controlling an operation mode of the welding machine, wherein in the normal mode the welding current continues to be outputted when the start signal is in the ON state and the output of the welding current is suspended when the start signal is in the OFF state,
wherein when the operation mode instruction signal indicates the interval mode and the start signal is in the ON state, the welding current is outputted in a predetermined welding current output period and the output of the welding current is suspended and becomes zero in a welding current interval period even though the start signal is in the ON state, the welding current interval period successively following the predetermined welding current output period.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/164,908Filed 19 Oct 2018
Priority: JP JP2017-2119251 Nov 2017
Published: US 2019/0126378 A12 May 2019
Granted: 19 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B23K 9/091
Arrangements or circuits for arc welding with pulsed current or voltage: characterised by the circuits
B23K 9/09
Arc welding or cutting: arrangements or circuits for arc welding with pulsed current or voltage
B23K 9/1043
Power supply: characterised by the electric circuit
B23K 9/164
Making use of shielding gas: making use of a moving fluid

Family

US 2019/0126378 A1Pre-grant publication · published 2 May 2019
US 11,305,367 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key