Method for Welding Balls

Patent metadata

Field	Value
Publication number	US-2021237194-A1
Application number	US-201917049592-A
Country	US
Kind code	A1
Filing date	Jun 13, 2019
Priority date	Jul 9, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

A method for welding balls provides a component, provides at least two balls, places at least one first ball of the at least two balls on the component, and applies an electrical voltage in such a manner that a current flows through the at least two balls and through the component, wherein the at least two balls are simultaneously welded together and the first ball is simultaneously welded to the component.

First claim

1 .- 13 . (canceled)

14 . A method for welding balls, comprising:
providing a component; providing at least two balls; mounting at least one first ball of the at least two balls onto the component; and applying an electrical voltage such that a current flows through the at least two balls and through the component, wherein simultaneous welding of the at least two balls and simultaneous welding of the first ball and the component occurs.

15 . The method according to claim 14 , wherein
welding is performed without a protective gas atmosphere during the welding process.

16 . The method according to claim 14 , wherein
more than two balls are used, and at least two of the balls are simultaneously welded to the component and at least two of the balls are likewise simultaneously welded to one another.

17 . The method according to claim 14 , wherein
a holding device is used by which the at least two balls are held relative to one another during the welding process.

18 . The method according to claim 14 , wherein
the at least two balls are introduced into a tubular holding device, and the at least two balls are arranged one behind the other in a row, and successive balls make contact with one another.

19 . The method according to claim 17 , wherein
a ring-shaped holding device is used.

20 . The method according to claim 19 , wherein
the ring-shaped holding device is placed onto the component, at least two balls bear against an inner side of the ring-shaped holding device and against the component, and at least one further ball bears against the at least two balls which bear against the inner side of the ring-shaped holding device and which bear against the component.

21 . The method according to claim 17 , wherein
the holding device is composed at least at an inner side, or is composed entirely, of an electrically nonconductive or electrically insulating material.

22 . The method according to claim 18 , wherein
the tubular holding device is composed at least at an inner tube side, or is composed entirely, of an electrically nonconductive or electrically insulating material.

23 . The method according to claim 14 , wherein
the at least two balls are pressed against the component by a welding electrode during the welding process.

24 . The method according to claim 14 , wherein
the at least two balls are steel balls.

25 . The method according to claim 24 , wherein
the component is a steel component.

26 . The method according to claim 14 , wherein
the component is a steel component.

27 . The method according to claim 14 , wherein
the electrical voltage with which the welding current is generated is a DC voltage.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Hammer Maik
• Niekerk Johann

Classifications

• B23K2103/04

  Steel {or steel} alloys · CPC title

• B23K2101/06

  Tubes · CPC title

• B23K11/0046 Primary

  the extremity of a small piece being welded to a base, e.g. cooling studs or fins to tubes or plates · CPC title

• B23K11/115 Primary

  by means of two electrodes placed opposite one another on both sides of the welded parts · CPC title

• B23K2101/006

  Vehicles · CPC title