Method for welding a welded part to a component and use of a welded part
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsHermann Krippl, Tuba Kurt
Life of this patent
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Abstract
A method for welding a welded part to a component is carried out as arc ignition welding by use of direct current, having a bias current phase in which an arc is formed between the negatively polarized welded part and the component, and a subsequent main current phase for melting material to the joint. The welded part: a) is a galvanized sphere made of C10C having a roundness G500, wherein the size of any zinc inclusions under the surface of the sphere equals 10 micrometers at maximum, orb) is formed by welding a galvanized sphere made of C10C having a roundness G500, wherein the size of any zinc inclusions under the surface of the sphere equals 10 micrometers at maximum, to a connection element.
Claims14
A method for welding a welded part to a component, which is carried out as drawn arc welding with DC current, the method comprising:
- a preweld current phase, in which an arc is formed between a negatively polarized welded part and the component;
- and
- a subsequent main current phase for melting material at a joining point,
- wherein the welded part:
- a) comprises a galvanized ball of C10C with a roundness of G500, in which a size of any zinc inclusions below a surface of the ball is a maximum of 10 micrometers,
- or
- b) is formed by the welding of a galvanized ball of C10C with a roundness of G500, in which a size of any zinc inclusions below a surface of the ball is a maximum of 10 micrometers, to a connecting element.
The method according to 9, wherein
- the component is a thin sheet with a sheet thickness of 0.7 mm or less or a thick sheet with a sheet thickness of 1.5 mm or greater.
Dependencies are inferred from the claim text.