Method for the welding production of a large-dimensioned part from ductile iron by using laser-deposition-welded buffer materials and electric welding

US9162317B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Stefan Brussk · Wetter (Ruhr), DE
• Birgit Grüger · Dortmund, DE
• Michael Kretschmer · Fort Wayne, US
• Karsten Niepold · Bad Hersfeld, DE
• Shilun Sheng · Oberhausen, DE
• Claus Wilhelm · Lahr (Eifel), DE

Key dates

• Filing date: Mar 31, 2010
• Grant date: Oct 20, 2015
• Expiry date: Nov 1, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2230/30
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method for producing a part from ductile iron, including the steps of designing the part in such a way that the part is composed of a plurality of part components, producing the part components from ductile iron, providing the part components in pairs, depositing buffer material onto the rim edge of the first part component and onto the rim edge of the second part component by means of deposition welding, laying the second part component with the rim section thereof on the rim section of the first part component so that the rim edges lie against each other with the buffer materials thereof, and welding the rim sections, wherein the buffer material is selected in such a way that a structure change in the ductile iron material of the part components is prevented when the rim sections are welded.