公开(公告)号：EP1984142A1

公开(公告)日：2008-10-29

申请号：EP07726303.6

申请日：2007-02-02

申请人： CeramTec AG

发明人： TZSCHENTKE, Konrad ,  SCHREINER, Hans-Jürgen ,  HANDSCHUH, Kurt ,  BEN AMOR, Raouf ,  FRIPAN, Michael

IPC分类号： B23Q1/34 ,  B23Q17/09 ,  B23B29/12

CPC分类号： B23Q1/34 ,  B23Q17/0976 ,  Y10T83/541 ,  Y10T83/85

摘要： During the machining of workpieces, in particular dynamic loads act on the cutting tools in addition to the static loads. This leads to chipping at the cutting edges of the cutting elements and thus to the destruction of the cutting element with the possible consequence that the workpiece is damaged and thus becomes useless. Furthermore, bending and torsional forces act on the cutting tools, and these bending and torsional forces load the machine tool and cause a change in position of the cutting tool, thereby resulting in defective machining of the workpieces. Furthermore, vibrations and chatter phenomena impair the machining of the workpieces. It is therefore proposed according to the invention that piezoceramic transducers (22, 30) be arranged in the region of the cutting tools (3), where force components of the cutting force act on the transducers. The signals produced by the forces acting on the transducers are directed to the control device of the machine tool and the machining of the workpieces is controlled with regard to these signals.

公开(公告)号：EP1984141A1

公开(公告)日：2008-10-29

申请号：EP07726301.0

申请日：2007-02-02

申请人： CeramTec AG

发明人： TZSCHENTKE, Konrad ,  SCHREINER, Hans-Jürgen ,  HANDSCHUH, Kurt ,  BEN AMOR, Raouf ,  FRIPAN, Michael

IPC分类号： B23Q1/34 ,  B23Q11/00 ,  B23Q17/09 ,  B23B29/12

CPC分类号： B23Q1/34 ,  B23B29/12 ,  B23B29/125 ,  B23B2250/16 ,  B23B2260/108 ,  B23B2260/128 ,  B23C5/003 ,  B23Q15/12 ,  B23Q17/0976 ,  G05B2219/37355 ,  G05B2219/49047 ,  G05B2219/49079 ,  Y10T82/10 ,  Y10T82/2585

摘要： During the machining of workpieces, in particular dynamic loads act on the cutting tools in addition to the static loads. This leads to chipping at the cutting edges of the cutting elements and thus to the destruction of the cutting element with the possible consequence that the workpiece is damaged and thus becomes useless. Furthermore, bending and torsional forces act on the cutting tools, and these bending and torsional forces load the machine tool and cause a change in position of the cutting tool, thereby resulting in defective machining of the workpieces. Furthermore, vibrations and chatter phenomena impair the machining of the workpieces. It is therefore proposed according to the invention that piezoceramic transducers (22, 30) be arranged in the region of the cutting tools (3), where force components of the cutting force act on the transducers. The signals produced by the forces acting on the transducers are directed to the control device of the machine tool and the machining of the workpieces is controlled with regard to these signals.

公开(公告)号：EP1972015A1

公开(公告)日：2008-09-24

申请号：EP06830642.2

申请日：2006-12-15

申请人： CeramTec AG

发明人： BINDIG, Reiner ,  HANDSCHUH, Kurt ,  VOIGT, Claudia ,  SCHMIDT, Jürgen ,  SCHREINER, Dr. Hans-Jürgen

IPC分类号： H01L41/047

CPC分类号： H01L41/0471 ,  H01L41/0477 ,  H01L41/083 ,  H01L41/094 ,  H01L41/1876 ,  H01L41/273 ,  H04R17/00 ,  Y10T29/42

摘要： A method for producing a component as monolithic multilayer element or multilayer bending element, comprising at least two layer stacks each having 1-400 layers of piezoelectrically active material which are separated by at least one layer stack comprising 0-100 layers of piezoelectrically inactive material, wherein the inner electrodes of the active layer stacks contain at least the following materials: a) pure silver b) electrically non-conductive material having a proportion by weight of 0% to at most 30% and the material of the piezoelectrically active layers has a sufficient activity in a thermal process such that sintering below the melting point of the material of the inner electrodes is possible and performed.