JPH04274878A - Hot wire tig/mig welding method - Google Patents

Abstract

PURPOSE:To offer the device which can execute both of hot wire TIG welding and hot wire MIG welding with one device. CONSTITUTION:TIG welding, and MIG welding are executed by a TIG welding power source 1 and a TIG welding torch 2, and an MIG welding power source 3, an MIG welding wire feeding device 4 and an MIG welding torch 5, respectively, and also, the hot wire supply is executed by a hot wire power source 6, a hot wire feeding device 7 and a hot wire torch 8, and by one device formed by combining them, hot wire TIG welding and hot wire MIG welding may be executed in accordance with necessity. Both of hot wire TIG welding and hot wire MIG welding may be executed in accordance with necessity without changing the set-up, and welding of high quality can be executed with high efficiency.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot wire TIG/MIG welding method capable of performing both hot wire TIG welding and hot wire MIG welding.

0002

2. Description of the Related Art Conventionally, hot wire TIG welding and hot wire MIG welding have each constituted a set of welding equipment using separate mechanisms. Note that related devices of this type include, for example, Japanese Patent Application Laid-Open No. 54-39338.

0003

[Problems to be Solved by the Invention] For example, in the case of butt joints of long aluminum alloys, when tack welding is performed inside the groove and then butt welding is performed, the former method is performed using MIG welding or hot wire MIG welding. When constructed using the method, it is likely that defects will occur due to penetration at the starting end. On the other hand, when the latter is performed by hot wire TIG welding, the efficiency is lower than that by hot wire MIG welding. Therefore, tack welding is performed using a hot wire TIG welding method, and butt welding is performed using a hot wire MIG welding method, but conventionally, these methods have had to be performed using separate devices.

The object of the present invention is to eliminate these inconveniences.

[0005]

[Means for Solving the Problems] In order to achieve the above object, a single device is configured to perform both hot wire TIG welding and hot wire MIG welding, eliminating inconveniences such as setup changes, Both welding methods can be used selectively as needed.

[0006]

[Operation] 1 set of TIG welding machine, 1 set of MIG welding machine and 1
A set of hot wire equipment constitutes a set of welding equipment, sometimes a TIG welding machine and a hot wire equipment perform hot wire TIG welding, and sometimes a MIG welding machine and a hot wire equipment perform hot wire welding. Perform TIG welding.

[0007]

[Embodiment] An embodiment of the present invention will be explained below with reference to FIG. The TIG welding power source 1 and the TIG welding torch 2 constitute the TIG welding function, and the MIG (or MAG) power source 3, the MIG welding wire feeder 4, and the MIG welding torch 5 constitute the MIG (or MAG) welding function. In addition, a hot wire power supply 6 and a wire feeding device 7 for hot wire are provided.
and hot wire torch 8 constitute a hot wire feeding function. Each of the torches 2, 5, and 8 is then fixed with a torch holder 12.

In the case of TIG welding, TIG welding torch 2
A hair arc of the base material 11 is taken out from the base material 11, detected by a TIG welding ammeter 9, and hot wire is supplied from a hot wire wire supply device 7 according to the current. In the case of MIG welding, a hair arc of the base metal 11 is taken out from the MIG welding torch 5, this is captured by the MIG welding ammeter 10, and a hot wire is similarly supplied.

According to such a configuration, for example, tack welding can be performed by hot wire TIG welding to eliminate poor penetration at the starting end, and main welding can be performed by hot wire MIG welding to increase the speed.

0010

According to the present invention, hot wire TIG welding and hot wire MIG welding can be performed using relatively simple equipment, and high quality and highly efficient welding can be performed with a small investment in equipment.

[Brief explanation of the drawing]

FIG. 1 shows a configuration diagram of an apparatus used in the hot wire TIG/MIG welding method of the present invention.

[Explanation of symbols]

1...TIG welding power source, 2...TIG welding torch, 3...MI
G (or MAG) power supply, 4...MIG welding wire feeder, 5...MIG welding torch, 6...hot wire power supply, 7...hot wire wire feeder, 8...hot wire torch, 9...for TIG welding Ammeter, 10... MIG welding ammeter, 11... Base material, 12... Torch holder.

Claims (1)

[Claims] Claim 1: One set of welding equipment is configured with one set of TIG welding function, one set of MIG welding function and one set of hot wire supply function, and one set of welding device has one set of TIG welding function, one set of MIG welding function and one set of hot wire supply function, and the hot wire supply function and TIG welding function or MIG welding function are combined. Hot wire TI by combining
A hot wire TIG/MIG welding method characterized by performing G welding or hot wire MIG welding.