Process and apparatus for applying layers of material to a workpiece made of tiAl

US9550255B2 · kind B2 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Karl-Hermann Richter · Markt Indersdorf, DE
• Herbert Hanrieder · Hohenkammer, DE
• Sonja Dudziak · Bietigheim-Bissingen, DE
• Albert Grueninger · Leonberg, DE

Key dates

• Filing date: Jun 16, 2011
• Grant date: Jan 24, 2017
• Expiry date: Jul 29, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12639
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method for depositing material layers on a workpiece made of a material which contains a titanium aluminide includes the steps of: preparing the workpiece; heating the workpiece in a localized region by induction to a predefined preheating temperature; and depositing an additive, preferably in powder form, on the heated surface of the workpiece by build-up welding, in particular laser build-up welding, plasma build-up welding, micro-plasma build-up welding, TIG build-up welding or micro-TIG build-up welding; the additive including a titanium aluminide.