Title:
METHOD FOR PRODUCING A LARGE-DIMENSIONED COMPONENT FROM NODULAR GRAPHITE IRON
Document Type and Number:
WIPO Patent Application WO/2012/010513
Kind Code:
A3
Abstract:
The invention relate to a method for producing a component from nodular graphite iron, comprising the following steps: constructing the component (1) from nodular graphite iron such that the component (1) is composed of a plurality of component parts (2, 3) which are placed against one another, forming partial joints (8), and are dimensioned and designed such that said parts can be cast from nodular graphite iron without critical flaws in the material; providing the component parts (2, 3) in pairs, wherein one of the partial joints (8) is formed by an edge (6) of an edge section (4) of the first component part (2) and an edge (7) of an edge section (5) of the second component part (3); placing the edge section (5) of the second component part (3) against the edge section (4) of the first component part (2) such that the edges (6, 7) rest against one another; welding the edge sections (4, 5) such that the partial joint (8) formed by the edge sections (4, 5) is welded and thereby the first and the second component parts (2, 3) are attached to one another, whereby the first and second component parts (2, 3) at least partially form the component (1); wherein for welding a MIG welding process having a low-energy short arc which is generated by means of an electrode, which melts during welding, and alloys up the molten electrode to the nodular graphite iron of the edges (6, 7) is used, or a friction stir welding process is used, by which the edge sections (4, 5) are welded with minimal energy input, such that structural disintegration of the nodular graphite iron does not occur during welding of the edge sections (4, 5), a nickel-based welding additive, especially SG-NiTi4 or SG-NiCu30MnTi, being used for the welding of the edge sections (4, 5).
Inventors:
BRUSSK STEFAN (DE)
KERN TORSTEN-ULF (DE)
NIEPOLD KARSTEN (DE)
SHENG SHILUN (DE)
KERN TORSTEN-ULF (DE)
NIEPOLD KARSTEN (DE)
SHENG SHILUN (DE)
Application Number:
PCT/EP2011/062141
Publication Date:
January 03, 2013
Filing Date:
July 15, 2011
Export Citation:
Assignee:
SIEMENS AG (DE)
BRUSSK STEFAN (DE)
KERN TORSTEN-ULF (DE)
NIEPOLD KARSTEN (DE)
SHENG SHILUN (DE)
BRUSSK STEFAN (DE)
KERN TORSTEN-ULF (DE)
NIEPOLD KARSTEN (DE)
SHENG SHILUN (DE)
International Classes:
B23K9/23; B23K9/02; B23K9/028; B23K9/173; B23K20/12; F01D25/24
Domestic Patent References:
| WO2006089322A1 | 2006-08-31 |
Foreign References:
| DE2728777A1 | 1978-02-02 | |||
| US3995139A | 1976-11-30 | |||
| US4426426A | 1984-01-17 | |||
| US20090155623A1 | 2009-06-18 | |||
| US20070181647A1 | 2007-08-09 | |||
| EP1428605A1 | 2004-06-16 | |||
| US20060151440A1 | 2006-07-13 | |||
| US4561484A | 1985-12-31 | |||
| US4213025A | 1980-07-15 |
Attorney, Agent or Firm:
SIEMENS AKTIENGESELLSCHAFT (München, DE)
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