JP2000301331A - Turning swing-pull method of manual welding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the turning swing-pull method of manual welding joining easily and surely fixed ends and for obtaining appearances which their constructions are inconspicuous. SOLUTION: The swing-pull of a welding rod while turning once on the right is performed to an end point 2 so that the (α) of the Greek alphabet is written by igniting, discharging and transferring from a starting point 1 between joined surfaces obtained by the tack welding of members. Successively, the swing-pull of the welding rod while turning once on the left is performed from the end point 2 to an end point 3 so that the (α) of the Greek alphabet is symmetrical, and successively, the swing-pull while turning once on the right is performed from the end point 3 to a terminal point 4 so that an ellipse which is long to the left and right is drawn in the center. In the series of the operations, welding is performed while the swing-pull while turning is continuously performed in the downward direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a member and a part of the member and a weld metal are melted and solidified to form a fixed end.

[0002]

2. Description of the Related Art Conventionally, this method includes a constant pull welding using a hand arc welding machine, a swing pull welding to the right and left,
Two-and-a-half turn indentation welding and electric adjustment welding using a carbon dioxide gas shield welding machine are known.

[0003]

The former of the prior arts described above is extremely simple, but has the problem that a special welding rod is used and careful work is required.

[0004] The latter is easy to weld, but generates a large amount of fume gas and is harmful to health.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. It is an object of the present invention to reliably melt-solidify by hand-turning and swinging and to provide an excellent fixed end. It is intended to provide what is.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method of joining a member to a member by temporarily welding a required left half edge from a joint surface where the member is temporarily welded. From the upper starting point 1 between the surfaces, the lower right point between the joint surfaces where the members have been temporarily welded while the welding rod is ignited and transferred to the ignition discharge, and the Greek character α is written clockwise one time while swinging it. Pull down to 2.

Subsequently, while the welding rod is being discharged, the required right half edge from the joint surface where the members are temporarily welded to each other is moved from the lower right end point 2 toward the required right half edge from the lower right point 2.
The member is pulled to the left lower end point 3 between the members and the joint surface where the members are temporarily welded while swinging once so as to write leftward symmetrically.

Subsequently, while the welding rod is being discharged, the ellipse is drawn to the left and right from the lower left end point 3 toward the center of the edge between the members and the joint surface where the members are provisionally welded so as to draw a long ellipse from side to side. This method is a method in which the members are pulled to the end point 4 while being swung, and in a series of operations, the members are welded while being swung and pulled continuously downward in a required direction of the joint surface where the members are temporarily welded.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A member is mainly made of a material such as steel or stainless steel.

[0010] The welding of the fixed end uses a hand arc welding machine.

[0011] The fixed end is welded downward using a mild steel-coated welding rod for downward use that is preferable for health and generates less fume gas.

The peripheral portion of the member is formed into a groove, or the peripheral portion of the member is directly welded to a desired angle.

In FIG. 1, the starting point 1 is a place where the welding rod starts igniting and discharging from the upper part between the members and the joint surface where the member is temporarily welded. Turn around the required left half edge between the joint surfaces where the members were temporarily welded so that the Greek letter α is written clockwise, and turn the lower right of the end of the swing to the end point 2. While discharging, turn around the required right half edge between the members and the joint surface where the members were temporarily welded so that the Greek letter α is written left and right symmetrically to the left. , While moving the welding rod from the end point 3 toward the discharge, and swinging clockwise to draw an ellipse long toward the left and right toward the center of the edge between the members and the joint surface where the members were temporarily welded. Turn the ellipse clockwise for a long time and finish it at the end point 4. You.

In FIG. 1 and FIG. 2, the required left half edge from the joint surface where the interference material and the member are temporarily welded is shifted from the upper starting point 1 between the member and the joint surface where the member is temporarily welded. Then, the welding rod is shifted to the ignition discharge, and is turned to the right at a time to write the Greek letter α, and is pulled to the lower right end point 2 between the joining surfaces where the members are temporarily welded.

In FIG. 1 to FIG. 3, while the welding rod continues to be discharged, the required right half edge from the joint surface where the members are temporarily welded is moved from the lower right end point 2 toward the joint. Then, the Greek letter α is drawn left and right symmetrically left and right, and is pulled to the lower left end point 3 between the joint surfaces where the members are temporarily welded while swinging.

In FIG. 1 to FIG. 4, while the welding rod is continuously transferred to the electric discharge, the central part of the edge between the members and the joint surface where the members are temporarily welded is moved right and left from the lower left end point 3 to the left and right. Pull to the end point 4 while swinging right once to draw a long ellipse.

In FIG. 1 and FIG. 5, in a series of operations, the members are welded while continuously turning downward and swinging and pulling a required interval between the members to which the members are temporarily welded.

After welding the fixed end, remove the slag raised on the fixed end with a chisel or the like, remove spatter around the fixed end with a chisel or the like, and weld with a wire brush around the fixed end. After rubbing the entire surface of the metal and the entire boundary between the surface of the weld metal and the surface of the member, or welding the fixed end, remove the slag raised above the fixed end with a chisel, etc., and attach it around the fixed end. After removing the spatter with a chisel or the like, the entire surface of the weld metal is processed and finished using a machine or a power tool.

[0019]

Since the present invention is configured as described above, it has the following effects.

The hand-welding spinning method has a simple operation, has a good appearance, is easily melted and solidified, and has no welding defects.

Further, as shown in FIGS. 6 and 7, the boundary between the weld metal whose fixed end is welded and the member is slightly corrugated, but the weld metal is arranged in a crescent-shaped curve such as a fingerprint at the fingertip, resulting in poor welding. There is no.

Further, when welding the fixed end, even if various welding rods dedicated to welding are used in the gap between the members while using a mild steel-coated welding rod, the fingertip of the weld metal may be swollen. There is no welding defect to the eyes.

Further, when welding the fixed end, even if there is a gap between the members, the weld metal is formed into a crescent-curved eye such as a fingerprint of a fingertip or an eye such that the fingertip is swollen.

[0024] Also, when members are spot-welded, they can be easily performed.

Further, in the case where welding is performed in a downward direction while turning and pulling the above series of operations, even a left-handed person can easily turn and pull in a symmetrical manner.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a swinging pulling of a fixed end by hand welding.

FIG. 2 is an exploded plan view showing a left side of a schematic plan view showing hand-welding turning of a fixed end;

FIG. 3 is an exploded right-side plan view of a schematic plan view showing a hand-welded turning swing of a fixed end.

FIG. 4 is an exploded plan view showing a schematic plan view of a fixed-end hand-welded turning swing;

FIG. 5 is a schematic plan view showing continuous downward pulling of the fixed-end hand-welded turning pull;

FIG. 6 is an inner perspective view showing a completed state of the fixed end.

FIG. 7 is an external perspective view showing a completed state of the fixed end.

[Explanation of symbols]

 1 Start point 2, 3 End point 4 End point

Claims (1)

[Claims] 1. A welding rod is formed from an upper starting point (1) between a member and a joint surface where the member is provisionally welded from the upper starting point (1) between the member and the member where the member is provisionally welded. Ignite the Greek letter α clockwise as it moves to the ignition discharge and pull it to the lower right point (2) between the members and the joint surface where the members were temporarily welded while shaking once, and then continuously transfer the welding rod to the discharge In the meantime, the required right half edge is written counterclockwise from the lower right end point (2) symmetrically to the left and right of the Greek character α from the lower right end point (2) from the joint surface where the members are temporarily welded. Pulling to the lower left end point (3) between the member and the joint surface where the member was temporarily welded while swinging once, and then continuously moving the welding rod to the discharge, while the center of the edge between the member and the joint surface where the member was temporarily welded. From the lower left point (3), turn once to the right to draw an ellipse longer to the left and right. Pull up to the end (4) with shaking,
In this series of operations, a method is used in which welding is performed while continuously turning downward and swinging a required distance between members and a joint surface where the members are temporarily welded.