公开(公告)号：EP2029788A1

公开(公告)日：2009-03-04

申请号：EP07764370.8

申请日：2007-06-14

申请人： MTU Aero Engines GmbH

发明人： KÄHNY, Andreas ,  HERTTER, Manuel ,  STEINWANDEL, Jürgen

IPC分类号： C23C4/12

CPC分类号： C23C4/12

摘要： The invention relates to a method for coating a workpiece, in which a material is applied to the workpiece by means of a thermal spraying process that is monitored and evaluated so as to establish on-line process control. According to the inventive method, infrared emissions of the spray jet are detected with the aid of at least one infrared camera, and properties of said spray jet are determined by analyzing the infrared emissions of the spray jet, which are detected by the or each infrared camera.

公开(公告)号：EP1867219B1

公开(公告)日：2008-10-01

申请号：EP06722707.4

申请日：2006-03-30

申请人： MTU Aero Engines GmbH

发明人： HERTTER, Manuel ,  HÖSCHELE, Jörg ,  SCHNEIDERBANGER, Stefan ,  STEINWANDEL, Jürgen

IPC分类号： H05H1/00

CPC分类号： H05H1/0037 ,  H05H1/0025

摘要： The invention relates to an arrangement for measuring characteristic properties of a plasma beam in a thermal spray process, said arrangement comprising means for introducing spray materials into the plasma, a one-dimensional or two-dimensional array consisting of first optical waveguides (2a) for receiving the light radiation emitted by the plasma (1), and other optical waveguides (2b, 2c) for distributing the light radiation emitted by the plasma (1). According to the invention, means (W) are provided for splitting the light guided in the first optical waveguides (2a) into the other optical waveguides (2b, 2c), one optical waveguide (2c) being connected to the opening diaphragm of a particle flow arrangement (7), and the other optical waveguide (2b) being connected to the opening diaphragm of a spectrometer (3). Means (5, 7) are also provided for determining the current state of the spray process.

公开(公告)号：EP1691948B1

公开(公告)日：2007-04-25

申请号：EP04802723.9

申请日：2004-11-12

申请人： MTU Aero Engines GmbH

发明人： BUSSMANN, Martin ,  KRÄNZLER, Thomas ,  PLATZ, Albin ,  STEINWANDEL, Jürgen

IPC分类号： B23H9/10

CPC分类号： B23H9/10

摘要： The invention relates to a method for structuring of components in aero gas turbines, produced using cathode tools and electrochemical machining. According to the invention, a boundary-layer minimising structure is produced on the surface of the components by means of structures provided on the surface of the cathode tool.

公开(公告)号：EP1369001A1

公开(公告)日：2003-12-10

申请号：EP02717991.0

申请日：2002-03-06

申请人： MTU Aero Engines GmbH

发明人： BAYER, Erwin ,  BETZ, Philip ,  HÖSCHELE, Jörg ,  ÖFFINGER, Friedrich ,  STEINWANDEL, Jürgen

IPC分类号： H05H1/34 ,  H05H1/30

CPC分类号： H05H1/30 ,  H05H2001/3426 ,  H05H2001/3484

摘要： The invention relates to a method for plasma welding by means of a free microwave induced plasma jet which is produced according to the following method: microwaves are produced in a high frequency microwave source; the microwaves are guided in a wave guide (1); process gas is introduced into a microwave transparent tube (2) which comprises a gas inlet (4) and a gas outlet (3) at a pressure p ≤ 1 bar, the process gas being introduced into the microwave transparent tube (2) via the gas inlet (4) so that it comprises a tangential flow component; a plasma (7) is produced in the microwave transparent tube (2) by igniting the process gases without electrodes; a jet of plasma (17) is produced by introducing the plasma into the work chamber (16) through a metallic expansion nozzle (5) arranged on the gas outlet (3) of the tube (2).