DE1915746A1 - Method and arrangement for electrical welding - Google Patents

Description

Priority; April 12, 1968; V.St ₀ A .; ITr. 720 777

The invention relates to the welding of metal parts in a welding zone with each other.

Am process for welding metal parts in one Welding zone is characterized according to the invention in that a film made of electrically conductive material as sioh Consuming electrode in a welding circuit together with at least one of the parts to be welded as Another electrode is used, with either one of the two metal parts or the foil in the welding zone and the other part is outside the same, and that a force is exerted to compress the two metal parts or the foil in the welding zone when the Welding circuit is closed.

Bayerische Vertintbank Munich 820993

1 π 15746

^{AMP 2465-2} - "Ηυ

According to a preferred embodiment of the invention the foil held in the weld zone, and ea find two too welding metal parts in such a way that a metal part is provided on each side of the foil and the two metal parts can be advanced with respect to the foil; in this case, one metal part is used for a specific period held in a fixed position while its end is in contact with one side of the film, and the other metal part is brought closer to the other side of the foil, expediently in one for this purpose movable frame. Another embodiment of the invention provides that the metal parts to be welded together extend and extend to one another their end faces end in the welding zone and the foil for carrying out the welding process is brought closer to the end faces is, according to a particularly preferred embodiment, a tungsten stamp is used.

The film made of a highly conductive material is expediently made of an electropositive metal that acts as a getter material acts for oxygen. Aluminum is particularly suitable as the metal of the foil, and the foil can either consist of this metal or an aluminum alloy. The film expediently has a thickness between 0.025 up to 0.13 mm. The invention is not limited to a mode of operation in accordance with the theory given below, however, it is believed that the electrical excitation of the welding circuit creates an arc through which the Aluminum foil is so evaporated that a hole is formed, which quickly enlarges to the outside, so that the movement the metal parts or the foil in the welding zone extinguishes the arc formed in this way. It can be assumed that as a result, precise control of the onset and termination of the welding process is achieved in a simple manner.

1315746

ΑΗΡ 2465 - 3.-

The parts to be welded together can be made of copper or a copper alloy, but they do not have to necessarily have the same chemical composition.

In a preferred embodiment of the invention, a continuous advancement of the foil electrode is used, and the two metal parts to be welded together are kept in contact with both sides of the film. When welding, a hole is formed in the foil, and on the periphery of the cut out hole can be the welded metal of the parts to the outside of the band-shaped Move the slide away. The invention also consists in an apparatus for carrying out the welding process, in which a tape-shaped feeding of the conductive film takes place.

The invention is particularly suitable for welding electrical lead wires to electrical terminals. Suitable Terminals for carrying out a method according to the invention have a contact part that is attached to the free End of the conductive core of an electrical conductor is welded in the welding zone, with two sleeve-shaped Parts are arranged around the contact point and a film of electrically conductive material between the sleeve parts clamped or depending from one of these extends into the weld zone; suitable connection means are provided intended for connecting the clamp and the foil to the welding circuit. It will be discussed below particularly suitable IC terminal shapes discussed. The welding method according to the invention can also be used in in a similar way to effect the feeding of an electrical component to a conductor which is on an insulating material existing printed circuit board. is arranged. Appropriately becomes the foil electrode on one surface

$ 08845/0941

AMP 2465 - 4 -

attached to the circuit board, and the consumption process the film during the welding process places part of the

Insulating material free, so that the welded connection from the 'Unused foil and the other conductors are insulated. The foil electrode can be placed on the circuit board or whose conductors are attached to places where connection • wires are to be provided, and the invention particularly relates to a method of welding such a printed circuit board.

The invention also relates to each other welded metal parts and in particular the welded connection of an electrical connection wire with a Terminal or an electrical connection wire with a printed Circuit board or a circuit board with the supply of a component.

The invention is in the context of the description below discussed with the figures. From the figures show:

Figure 1 is a longitudinal section of an arrangement for

electric welding according to the invention, also showing the welding circuit;

Figure 2 longitudinal sections through the given in Fig. 1 and arrangement in different phases of the Figure 3 welding process;

Figure 4 is a schematic representation of a further embodiment of an inventive Welding device specifying the welding circuit;

FIG. 5a shows a partially sectioned side view and FIG. 5b of a third embodiment with the associated welding circuit, FIG. 5b showing the two parts to be welded together after completion of the welding process ; - ■ - ■■■ -

• 09846/0941

AMP 2465

Figure 6

Figure 7a
and 7b

Figure 8
big
Figure 10

Figure 11

Figure 12

Figure 13
and
Figure 14

a perspective view of a further embodiment of the invention;

partially sectioned representations of a clamp arrangement to be welded according to the invention;

Longitudinal sections of further clamp arrangements to be processed according to the invention;

an exploded view of the production of a splice connection according to the invention j

a sectional view of another embodiment of a splice connection according to the invention ; and

Partial representations of a printed circuit board with connecting conductors welded on according to the invention in perspective view,

In Figo 1, two parts to be welded together are made Copper or brass denoted by A and B; the two parts touch the opposite surfaces of an aluminum foil E at points on the common axis. The front end of part A is essentially rounded, while the front End of part B is essentially pointed. Part A and foil E form the electrodes, an electrical welding circuit, which consists of a capacitance C charged by a direct current source at a speed determined by the resistance R connected to the negative terminal of the capacitance with which the film E is also connected by means of the supply line II. The positive assignment of the capacitance C is via the supply line I. connected to the part A, and the capacitance C is actuated of the switch SW, which is switched on between the capacitance and the part A, discharged. The displayed polarity selection of electrodes is not essential and could

• O9I4S / 0941

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also be reversed. There is a force P on the ends of the two Parts A and B exercised so that the two are pressed together.

During the welding process, the capacitance C is over the line I discharged so far that in the part of the film 3 between the both metal parts A and B generated a plasma arc discharge will. The arc discharge causes evaporation of the film material and the formation of a hole in the film E, the expands outwards around parts A and B, which are used for welding are pressed against each other. The arc continues until the gap between the metal of the foil E and the metal parts A and B is sufficient for the deletion, with a weld V / between the two lines according to FIG. 3 forms. It is assumed, but should this Assuming no limitation of the subject matter of the invention that if parts A and B touch, then part B too becomes the anode and that the evaporation of the aluminum consumes oxygen and thereby the properties of the formed Welding point can be improved. The strength of the force with which parts A and B are pressed together, depends on the hardness of these metal parts, the shape of the ends of the metal parts at the contact.gytellen with the foil E and the degree of surface contamination and the resulting insulation. The film E can be between 0.025 mm and 0.13 mm thick and can have any shape and can also be produced by rolling or in the Yfege of the cladding be. For example, two 16 AWG-thick solid copper wires coated with "Formvar" were used an aluminum foil of 0.05 mm thickness welded together, with a capacity of 50,000> uF used which was charged to 45V and discharged to 30V. One wire was held immobile and the other Wire was held in a movable frame, which by means of

• 09845/0941

BAB ORfQfWAt

ΑΙ-DP 2465 - 7 -

a hammer was struck so that the wire hit the foil E touched and triggered the doge; this switch-on procedure proved itself better than the use of a switch SV / according to Pig · 1 »The weld point achieved was definitely was satisfactory and there was little damage to the insulation of the copper wires. The hole formed in the film had a diameter of 2.5 mm.

In the embodiment according to FIG. 4, a semi-independent welding circuit is assigned to each of the two metal parts A and B, to which the aluminum electrode E belongs as a common electrode. The capacities Cl and C2 are of. a common DC voltage source charged via the resistors R1 and R2, possibly to a different potential. The negative terminals of the capacitors Cl and C2 are connected to the metal part via the switches SW1 and SW2 and the lines I A connected so that it becomes the anode. Leads II connect the other electrode of each Capacity with foil E, the foil being grounded. The capacities are charged when the switches SWl and SV / 2 are in their interruption position, but if the switches are closed, expediently by common actuation means, the capacities are discharged, so that you see a weld as before "

In the embodiment according to FIG. 5a, the two are coaxial and parts A and B which surround one another are welded to one another using a film E, which passes through a tungsten punch M is brought into the welding zone. The welding circuit is essentially the same as before has been described in connection with FIG. The punch M is advanced to the foil E against each other aligned faces of parts A and B when the switch SW is closed. The discharge of the

109846/0941 ''

AMP 2465 - 8 -

Was capacitance causes evaporation of a part of the film, and thereby the welding ¥ forms in a similar V / else, such as in connection with the! _O Fig 1-3 discussed. The weld is shown in FIG. 5b. If the shape of part B allows, part B can be used as an electrode instead of part A.

In Fig. 6 an arrangement is shown which serves the purpose of successively welding workpieces A and B to one another using a band-shaped aluminum foil E, which is wound on the drum Sl. The tape will processed and transported using suitable advancing means to a point to which the parts & and B,. each one Touching the side of the foil. The strip-shaped film makes contact with a resilient power supply II. At a third point, an opening is made at the formed weld hole of the band, so that they are welded together Parts of the tape can be removed and the tape can be wound on a take-up reel S2. In operation, the tape unwound from the reel S1 is gradually guided past the processing station. the Parts A and B are pressed against the opposite surfaces of the belt at the second processing station, the Foil is over connection II and part A over the supply line I energized so that the two feeders form part of the Sohweißstromkreis, through which in ahn-. licher Way as in Fig. 1, the welding process is effected. At the next station, one side wall of the is. formed sweat holes in the tape, and the parts welded together are moved out away from the tape, which itself is then wound on the reel S2.

009146/0941

1015746

2465 - 9 -

7a and 7b show , in section and perspective, a terminal 20 in the shape of a ring tongue which, according to the invention, is welded to an electrical cable 10, which consists of a core conductor 14 consisting of a plurality of individual wires and an insulating jacket 16. The terminal 20 consists from the ring part 22 at one end of the sleeve part 24, the inner diameter of which is selected to correspond to the core conductor 14 of the cable 10. The length of the sleeve part 24 is such that the end of the core conductor 14 of the cable 10 freed from the insulating jacket 16 is received in the sleeve. Around the sleeve part 24 there are two coaxial sleeves 25 and 26 made of insulating material, the sleeve 26 extending rearward from the clamp 20 so far that the sleeve 26 engages over the cable jacket 16 and thereby carries the cable 10. One Foil electrode 28 is clamped between sleeves 25 and 26, and the free depending end 29 of the foil covers the open end of the sleeve Sleeve 24 in the vicinity of the ring part 22. The sleeve 26 has a recess 27 which makes part of the foil 28 accessible, so that a connection option for the negative lead II of the welding circuit to the foil is formed. A positive power supply I of the welding circuit is in connection with the ring part 22 of the terminal, so that the terminal 24 thus forms one electrode. During operation, the sleeve 25 is pushed over the clamping sleeve 24 and the film 28 is inserted, so that the free end 29 of the film also lies over the open end of the sleeve 24 in the vicinity of the ring part 22. The sleeve 26 ■ is then pushed over the sleeve 25 so that the film is clamped. The recess 27 of the sleeve 26 is aligned with the foil 28 * ¹ The core conductor 14 of the cable is pushed into the sleeve 24 until the free end of the core conductor meets the inside of the end 29 of the foil 28

AMP 2465 - 10 -

cuts off. The supply line I is connected to the input part 22 and the supply line II is connected to the film 25 at the recess 27. Sin tungsten stamp M is against the end 29 of the slide pushed, and the Schv; eii3stron: circle is closed and thereby the weld, similar to that of FIGS. 5a and 5b, is produced.

The clamp 30 according to FIG. 8 is welded to a cable 10, the one non-divided core conductor 14 within one Has insulating jacket 16. The clamp 30 consists of one annular tongue part 32 and a shaft part 34, the end of which is rounded, around the formed during welding focus initial arc. A first plastic sleeve 35 is pushed over the shaft part 34 and carries the foil electrode 37, the flat end 38 of which is bent downwards is and rests on the end of the shaft part. A second plastic sleeve 36 has a recess 39 which lies above the sleeve 35 and is aligned with the film 38 so that the feed II is connected to the film can be. The sleeve 36 extends beyond the shaft portion 34 and takes the end of the electrical cable on. When welding, the positive lead I and the negative lead II of the welding circuit are connected to the Ring part 32 or the film 38 connected, and the cable 10 is pushed into the sleeve 35 using a force F, while a counterforce is brought to act against the ring portion 32 so that the clip and the core conductor of the cable are printed towards each other and thereby the welding circuit is switched on and a weld is formed according to FIG. 1. The sleeves 35 and 36 can consist of a material that shrinks when exposed to heat, which comes to flow during the welding and seals the so-white zone.

§ (19 * 41/0141

AKP "2465 - 11 -

The clamp 40 according to Pig * 9 has a ring part 42 and a fully filled shaft. 44, which is covered by a tubular plastic sleeve 46. An aluminum cap 48 has a membrane 49 at one end that forms the end of the shaft 44 so that the membrane 49 abuts the end of the shaft 44. It becomes a full wire cross-section Wire 10 pressed against the cap 49 and, as was described in connection with Pigc 1, welded, with the positive power supply I is connected to the ring part 42 and the negative power supply to the aluminum cap 48 int.

The terminal 50 according to Pig «10 consists of a ring part 52 and a rearwardly extending shaft 54 which is inserted into one end of a plastic sleeve 56. A Aluminum tube 58 forms a closed end 59 and is inserted into the sleeve 56, with the end 59 after inside until the end 59 hits the shaft end 54 «Der Core conductor 14 of the electrical cable 10, the insulating jacket of which is denoted by 16, is pointed and inserted into the Tube 58 inserted until the tip hits the end 59, and the cable 10 together with the tube 58 is in the sleeve 56 pressed. The tube 58 extends out of the sleeve 56, so that its surface for the connecting line of the Welding circuit is accessible. Then the clamp is on the core conductor 10 is welded in a manner similar to that described in connection with Pig »I, with the power supply lines I and II be brought into connection with the ring part 52 or the tube 58 «

In Pigο 11 a splice connection 60 is shown. Under Splice connection is understood to mean the coaxial connection of two cables 10, specifically here by way of accidental welding.

109845/0941

131.5746

AMP 2465 «12 -" ■

The splice clamp consists of the inner sleeve 64, on whose Outside the film 68 is arranged so that the one The end 69 of the film is bent inward and extends inward through a slot in the wall of the sleeve 64, so that the end is parallel to the sleeve ends. An opening 65 is provided in the sleeve 64 opposite, but is located somewhat in the longitudinal direction offset with respect to end 69 of the foil. An outer sleeve 62, which is shorter than the sleeve 64, is over the Sleeve 64 pushed in such a way that part of the film 68 remains accessible for the purpose of connecting the welding circuit, An opening 63 is formed in the sleeve 62, and the sleeve

62 is pushed onto the sleeve 64 so that the opening

63 is aligned with opening 65 for a lead wire of the welding circuit can be passed through the openings when the wire to be spliced is inserted into the splice sleeve. The two wires will go into the ends of the sleeve 64 inserted so that they act against the end 69 of the foil 68, and the leads to the welding circuit are connected to the electrodes concerned, and the welding is carried out as before. The sleeves 62 and 64 may be made of a material that melts under the action of heat, so that then the welding zone is closed.

Fig. 12 shows a further embodiment of one according to the invention Splice connection. The splice connection 70 consists of a plastic sleeve 72 which has an opening in the middle 73 has. A metal peg 74, for example made of copper or brass, is provided approximately in the middle of the sleeve 72, so that a welding current lead through the opening 73 with the stake 74 can be connected. An aluminum tube 78

909845/0941

19157Λ6

AMP 2465 - 13 -

is provided for each of the cable ends to be interconnected, with the bottom portion 79 in contact with each one side of the peg 74 is brought. The length of the 'Hohres 78 is such that the pipe over the end of the plastic sleeve 72 protrudes so that a corresponding lead for the welding current can be connected. It a tube 78 is pushed over the end of each cable 10 and pushed into the end of the sleeve 72, and there are the power supply lines to the relevant electrodes connected and the core conductors of the cables pressed together when; the welding circuit is closed and the Welding., - takes place. Splice connection 70 can be employed be carried out by core conductors of different materials.

A Yerschweißung according to FIGS. 1 to 12 can after Welding process or during the same still be subjected to a pressing process in order to achieve a better connection between effect of the sleeve and the welding point "

In Figo 13 and 14 is a printed circuit board 80 of insulating material, advantageously provided from a phenolic resin or a diallyl phthalate, is composed of thin film 82, provided by sticking on the plate surface a pattern on the Z ₀ field B _0. Using the invention, certain selected atroma conductive parts are shown welded onto plate 80. A pin 84 with a head part 86 serves the purpose of connecting the connecting wire 90 of an electrical component through the plate 80 to a conductor 88 on the underside. The conductor 88 can be used for connection to the plate edge. The pin 84 can be directly related to the lead: p08 «The connecting wire 90 is against the foil

909845/0941

AMP 2465 - 14 -

pressed, with leads I and II to an ochweißstromkrel8 are connected to the film 82 and the conductor 88, respectively.

A connection is created between the part 90 and the head 86 of the peg 84 by welding, v; above a hole in the atrum-diverting foil 82, such as S ¹ Xg. 14 shows how plasma arc is formed during the welding process. The diameter of the head 86 is dimensioned in relation to the hole such that the hole exposes a surface part of the plate 80 and in this way the part 90 is electrically isolated from the film 82. 13 and 14 also show two parts 110 and 112 which are connected to one another by means of a connecting pin 100. The connector plug 100 has a head 104 on a columnar portion 106, and a plug 108 protrudes from the lower part of the plate 80. The parts 110 and 112 are placed together against the foil 82 above the columnar part 106, and leads of a welding circuit are connected to the foil 82 and the connector 100 or to one of the parts, and the welding is then effected, as already before was discussed. The diameter of the columnar portion 106 is selected in relation to the hole formed in the electrically conductive foil 82 so that electrical separation from the foil is achieved. The figures also show the connection of a plurality of connections 128 of a component 126 with the current paths 124 on one side of the plate 80 made of insulating material. The current-conducting film 120 can be attached in such a way that the current-conducting paths 124 are covered and on the places where connections are to be made should be concentrated, as can be seen in FIG. For welding, the feeds 128 and the corresponding feed lines I and II to the welding circuit are provided, as shown in FIG

909845/0941

Ai-IP 2465 ~ 15 »

shows. The welding then takes place in the "already described" Way. The welding process consumes parts of the film in the vicinity of the welding zone, so that the supply lines 129 - to the component 126 with the printed current paths 124 and parts of the printed circuit board made of insulating material on the board surface are exposed and the supply lines 128 electrical from each other and from the non-consumed foil parts be separated.

Claims i

909845/0941

Claims (1)

AMP 2465 '- Claims e Method for welding metal parts in a welding zone in which at least one metal part acts as an electrode, characterized in that a film (E in Fig. 1-6; 29 in Fig. 7; 38 in Fig. 8; 49 in Fig _o 9; 59 in Fig. 10; 69 in Fig. 11; 79 in Fig. 12; 82, 120 in Figs. 13 and 14) is used as the consuming electrode of an electrical welding circuit and at least one of the parts to be welded (Δ , Β in Figs. 1-6; 14 and 20 in 'Fig. 7; 14 and 30 in Fig. 8; 10 and 40 in Fig. 9; 14 and 50 in Fig. 10; 14 and 60 in Fig. 11; 10 and 74 in Fig. 12; 88, 100 and 124 and 90, 110, 112, 128 in Figs. 13 and 14) is used as another electrode, either one of the metal parts or the foil being in the welding zone and the other part outside the same, and that a force is applied to press the other of the parts or the foil in the welding zone when the welding current is switched on. 2. The method according to claim 1, characterized in that the film (E in Figs. 1-4 and 6; 38 in Fig. 8; 49 in Fig. 9; 59 in Fig. 10; 69 in Fig. 11; 79 in Figure 12; 82 in FIGS. 13 and 14) is held in the welding zone and on both sides of the film the ones to be welded Parts (A, B in Figs. 1-4 and 6; 14 and 30 in Fig. 8; 10 and 40 in Fig. 9; 14 and 50 in Fig. 10; 14 and 60 in Fig. 11; 10 and 74 in Fig. 12; 88, 100 and 90, 110, 11-2 in Figs. 13 and 14 "). 3. The method according to claim 2, characterized in that that one of the parts to be welded (34 in Fig. 8; 44 in Fig. 9; 14 in Fig. 10, 124 in Fig. 13 and 14) come into contact with one side of the film 9.09845 / 0941 ■ 915746 AMP 2465 ff (38, 49, 59, 120) and the other part (14, 10, 54, 128) brought into contact with the other side of the slide will. 4. The method, laughing knov.-ruch 1, characterized in that the two are welded together au Parts (A, Ti in Pig. "5; 14, 20 in Fig. 7) α i in extend in the same direction and common in the welding zone Form end surfaces and that the film (E, 29) is pushed against the end surfaces. 5. The method according to claim 4, characterized that the film - (S) by means of a Üteiapelteiles (H) is advanced « 6. A method according to any one of claims 1 to 5, characterized in that the film consists of an electropositive metal is ₀ 7. The method according to claim 6, characterized in that that the electropositive metal as Oxygen getter works «, 8. The method according to claim 7 »characterized in that that the foil is made of aluminum » 9. The method according to claim 1 or one of the following claims, characterized in, that the film has a thickness of 0.025 mm to 0.15 mm. 1oo method according to claim 2, characterized GEK e η η - characterized in that the film (E in Figure "6) of a tape is used in the form, and the two parts to be welded (A, B) in the weld zone of the belt _0R1G1NAL '915746 AMP 2465 on opposite lines, be kept in contact with the same and, after the swelling has taken place, Tcr. de:!, 3ana moved away to the side; ground _{or similar} 11. The method according to one of address 1 to 10, characterized in that Ls.ü lie iait each other to be welded ¹ IeIIe consist of I.'upf he or a copper alloy » 12. The method according to any one of claims 1 to 11, characterized in that the one of the two ends of the core conductor of an electrical cable (14 in Pia »7, t-, 10 and 11; IC is in Figo 9 and 12) and the other I'eil an electrical terminal (20, 30, 5O ₅ 60, 40, 70) isx. 13. Terminal for performing the method according to claim. 12, characterized in that a contact part the terminal (24 in Pig. 7? 34 in Fig, B; 44 in "Fig" 9; 54 in Jig. 10; 14 in Fig, 11? 74 in Fig. 12) rail: the end of the core of an electrical cable in the wiring zone can be welded and two sleeves (25, 26 in Pisr, 7; 35, in Fig. 3 $ 46, 43 in Fig. 9; 56, 58 in Figure 10; 62, 64 in Fig. 11? 74, 78 in Fig. 12) on the contact part of the clamp are arranged and a sheet of electrically conductive material (29 in Fig. 7; 38 in Fig. 3; 49 in Fig. 9; 59 "in Fig. 10; 69 in Fig. U; 79 in Fig. 12) between the "two Pods is wedged or hangs down from one end of one pod and, in - * ea? extends the welding zone and that connection means (22, 27 in Fig. 7; 32, 39 in Fig. 8; 42, 48 in Figure 9; 52, 58 in Fig. 10; 63, 68 in Fig. 11; 73, 79 in Fig. 12) for connecting the connecting lines (I, II) of the welding circuit to the foil or the clamp are provided. BATH ORIGINAL 1315746 AIiP 2465 14. Clamp for performing the method according to claim 12, characterized in that the Kcriilleiter (14) of an electrical cable (10) with his End into the tubular welding clamp (24 in Fig. 7) of the Kleinne EinstecVoar is so that the end of the core conductor (14) with the end of the ferrule (24) and cut the welding aone forms, and that sleeves (25, 26) made of insulating material are arranged coaxially around the ferrule (24) surrounding one another and a strip-shaped film (28) between the sleeves (25, 26) is clamped in such a way that one end (29) is bent to form the welding zone, and the outer sleeve (26) a cutout (27) for the connection of the supply line (II). Of the welding fluid circuit to the film (23). 15. Clamp for performing the method according to claim 12, characterized in that a pin-shaped clamping part (34 in Fig. 8) from a first Sleeve (35) is surrounded by insulating material and that the sleeve (35) and the cable to be connected (10) from opposite Sides can be inserted into a second sleeve (36) made of insulating material in a longitudinal extension with respect to one another, and that a strip-shaped film (38) between the two sleeves (35, 36) and has a bent end (39) which extends over the end of the first sleeve (35) and between the opposite ends of the peg-shaped Klenunteiles (34) and the core conductor (14) of the Cable lies in the second sleeve (36), the second sleeve (36) having a cutout (39) for connecting the supply line (II) of the welding drinking circuit on the film (38). 16. Clamp for performing the method according to claim 12, characterized in that the Clamp a spigot-shaped part to be welded (44 in 90984S / O941 ^ßAD AMP 2465 | Figo having 9) and is surrounded by a sleeve (46) of insulating material and a cup-shaped metal part (48) 49) as a bottom, a membrane (and which consists of insulating material sleeve (46) so überschiebbar is _r. that the membrane (49) is in contact with the pin-shaped part (44) to be welded. 17. Terminal for performing the method according to claim 12, characterized in that the Clamp a pin-shaped part to be welded (54 in Figo 10) and in a sleeve (56) made of insulating material can be inserted and a cup-shaped part (53), the one formed as a membrane bottom / has, in the sleeve (56) in order to be able to insert the cable (10) to be connected in such a way that its core conductor (14) is in contact with the base part (59) of the cup-shaped part (58) and the peg-shaped Part (54) of the clamp is held in contact with the bottom (59) of the cup-shaped part (58), and that part the cup-shaped part (58) for the purpose of connecting the The welding line (II) extends outside the sleeve (56), 18. Splice connection for carrying out the method according to; Claim 12, characterized in that two sleeves (62, 64 in Figo 11) are arranged one inside the other and the outer sleeve (62) is shorter than the inner sleeve (64) and each sleeve an opening (63, 65) for receiving a supply line of the Welding circuit has at mutually corresponding points and the inner sleeve (64) has a slot in one of the Opening (65) opposite, but axially slightly offset point, and that a strip-shaped film (68) is clamped between the two sleeves (62, 64) in such a way that 909845/0941 1015746 AMP 2465 "W ~ that her one end is freely accessible and the inner end (69) through the slot in the inner sleeve (64) inward is bent and between the facing end faces of the core conductor (14) in the inner sleeve (64) cable (10) which can be plugged in from opposite sides lies » 19. Splice clamp for carrying out the method according to claim 12, characterized in that in a sleeve made of insulating material (74 in Figo 12) a metallic stake (74) of smaller length is arranged and the sleeve (72) has an opening (73) for the purpose of to connect the lead (i) of a welding circuit to the stake (74), and that two cup-shaped parts (76), each having a bottom part (79) in the form of a film, the ends of the connecting cables that connect to one another (10) in such a way that the core conductors of the cables (10) are in contact with the base parts (79) are located, and that the cup-shaped 2eile (76) of opposite ends can be pushed into the sleeve (72) and in the pushed-in state with their free ends outside the sleeve (72) protrude for the purpose of connection to the terminal (II) of a welding circuit. 20 _o The method of any de ^ nsprüche 1 to 12, characterized in that the one which is to be welded together parts of a conductor (88, 124 in Pig. 13 and 14) a printed, consisting of insulating circuit board (80) and the other to be connected part (90, 110, 112, 128) is a power supply to be connected to the conductor of a switching element. QRtGiHAL 909845/0941 '915746 AI-IP 2465. 21. The method according to claim 20, characterized in that _ ?; η - indicates that the film (32 j is arranged on one surface of the plate (30) and the power supply (90, 110, 112) with a the plate (30) aurcl - .; etsencleri port set (84, 100) des Current conductor is thus protected that a part of the film (52) is consumed during the welding process, thereby exposing the surface of the external insulating material (80) and isolating the feed (90, 110, 112) τοη the nich-auf.je "honored rope of the foil (82) is effected. 22. The method according to claim 21, characterized. marked that the plastic through the e uzen- ' de Fortsats (34, 100) designed as a pin or tenon (E4, 106) is. 23. The method according to claim 22, characterized. marked that on the surface of the StroK-kreieplatte (30) a ätromleiterrnuster (124) is printed and the film (120) at certain points in the welding zone the printed ones. Current paths (124) covered and when a lead (128) of a switching element is welded on in of the welding zone, the film (12Q) is consumed and a part the surface of the circuit board is exposed, for the purpose of preventing the lead (128) from being consumed Part of the film (120) to be insulated., 24. Printed circuit board for performing the method according to claim 23, d a du r c h g e Ic e η η draws that on one side of the plate (80) made of insulating material a current conductor oyster (124) is printed and parts of a film (120) at certain points where leads (128) are to be welded Overlay current conductors (l-2'4). 909845/094 1 g / © ORIGINAL ΑΗΡ 2465 -yes - 25. Arrangement for carrying out the method according to claim 10, characterized in that a tear-off device (Sl in Figo 6) of the strip-shaped film (E) is provided and a further device is provided which the two metal parts to be welded together (A, li) from opposite sides of the strip (E) in contact with the same, and da3 a welding circuit a first power supply (i) for connection to at least one metal part and a second power supply (II) for connection to the strip-shaped film (E) and that a further device laterally separates the hole in the band (E) formed during welding for the purpose of leading out the welded metal parts and that a winding device (S2) winds up the band after the welding process. BATH ORIGINAL 90984 5 / 09-4