JPS59218283A - Welding method of three-ply projection - Google Patents

Abstract

PURPOSE:To perform welding with one stage and to reduce working time in the stage of welding projection plates having different thicknesses and projection sizes on the respective surface sides of a base plate by superposing these plates into three plies and changing over welding conditions to two stages. CONSTITUTION:Projection plates 1, 4 are disposed on the respective surfaces 3a, 3b of a base plate 3 and the projection 2, 5 thereof are placed to face each other via the plate 3. The thickness is smaller with the plate 1 than with the plate 4 and the sizes of the projections 2, 5 are such that the former is smaller. The thickness of the plate 3 is smaller than that of the plate 1 in the figure but may be the same or larger. Welding is accomplished first by welding the plates 1, 3 under the 1st welding conditions of welding time T1, pressurizing force P1 and current value I1. The conditions are determined by the thicknesses of the plates 1, 3 and the size of the projection 2. The welding is then performed under the 2nd welding conditions of welding time T2, pressurizing force P2 and current value I2. The conditions are determined by the thicknesses of the plates 3, 1, 4 and the sizes of the projections 2, 5 and are T2>T1, P2>P1, I2>I1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for welding projection plates having different thicknesses and projection sizes to each side of a substrate that does not have a projection.

Conventionally, when performing the above-mentioned welding, as shown in FIG.
The projection plate 1 is placed through the projection plate 1, and the welding conditions (current value, coupled time, pressure) determined from the thickness of the substrate 6 and the projection plate 1, and the size of the projection plate 2 are applied. It is welded to the substrate 6 via the projection 2. Next, as shown in Figure 2, plate I
vmata and projection size or projection@
The projection board 4, which is longer than 1, is attached to the other surface 6b of the substrate 3.
Place the digital exciter 5 of the projection plate 4 on top and face the projection 2 of the projection plate 1, and weld according to the thickness of the projection plates 1, 4 and the board 3, and the size of the projection 2°5. The projection plate 4 was in bath contact with the substrate 6 under the following conditions. Therefore, the welding process required two steps, which took time.

The present invention aims to provide a welding method for a six-piece heavy octopus machine W, which requires only one step of welding and the time required for one operation is shorter than that of the conventional method.

In order to accomplish the above objectives +S, this invention provides projection boards with different thicknesses and projection sizes on each side of a board that does not have a projection! i3
The projection of the image projection board is placed opposite to the substrate through the substrate.First, the substrate and the projection screen of a small thickness are connected to each other, and the current application time, pressing force, and current determined from the thickness of the drawing board and the size of the projection are applied. After welding with the value, the energization time is determined by the size of the board and large plate projection,
It is characterized by welding with non-N pressure and current values.

The present invention will be described below based on drawings showing embodiments. Third
Figure 4 shows an embodiment of this invention. Note that the same components as in FIGS. 1 and 2 are designated with the same # symbol, and their explanations will be omitted. Each side 3 of the substrate 6 as shown in FIG.
The projector boards 1 and 4 are placed on a and 3b,
The projections 2.5 face each other with a substrate 6 in between. Eggplant? , the thickness of the projection board 1 is smaller than that of the projection board 4, and the size of the projection 2 is smaller than the size of the projection 4. Also board 6
Although the thickness of the plate 6 is smaller than that of the progeexine plate 6 in the figure, it may be the same or the thickness of the plate 6.

As shown in FIG. 4, welding is performed by first welding the projection plate 1 and the substrate 3 together for a welding time of T1. Pressure force Pl.

Electric? f, Welding is performed under the first welding condition of value 1. This condition is determined by the thickness of both plates 1 and 6 and the size of projection 2. Next, welding time T2. Pressure force P 2, stone flow value 2
The projection plate 4 is welded to the substrate 3 under the second welding conditions. The second welding condition is ■Plate 6. Determined from the thickness of the glosiex board 1.4 and the size of the projection 2.5, T2>TI, P2>Pl, and work 2>work 1.

As mentioned above, the bath welding method of this invention requires only one process, and the working time is significantly shortened compared to the conventional welding method, so the work efficiency is significantly higher than that of the conventional welding method, and the work is also easy. It is.

[Brief explanation of the drawing]

@ Figures 1 and 2 show a front cross-sectional view of the substrate and projection plate when performing conventional 6-layer 4th projection welding, and Figure 6 shows a front cross-sectional view of the mounting plate and projection plate according to the present invention. Fig. 4 is a characteristic diagram showing the relationship between welding time, welding flow, and pressurizing force of the present invention. 1.4... Projection plate 2.5... Projection 5... - 8 people from the board Trota Automobile Co., Ltd. Agent Hidehiko Okada, patent attorney

Claims (1)

[Claims] This is a method of welding one projection plate of different thickness and projection size to each side of a board that does not have a projection, and in which a deprojection plate is placed in front of each side of the board. Then, the projections are placed opposite to each other through the substrate, and first the substrate and the projection plate with a small thickness are connected, which is determined by the thickness of both plates and the size of the projection plate. A three-layer projection welding method that produces an image welded using time, pressure, and current values.