公开(公告)号：WO2016042026A1

公开(公告)日：2016-03-24

申请号：PCT/EP2015/071215

申请日：2015-09-16

Applicant: NUOVO PIGNONE SRL

Inventor： ARCIONI, Massimo ,  BARTALI, Claudio

IPC: B23H7/20 ,  G05B19/404 ,  B23H1/04 ,  B23H7/18 ,  B23H9/10

CPC classification number: B23H9/10 ,  B23H1/04 ,  B23H7/18 ,  B23H7/20 ,  G05B19/404 ,  G05B2219/45221 ,  G05B2219/45225 ,  G05B2219/50285

Abstract: A method for checking a geometry of an electric discharge machining electrode (11) is described. The method comprises the following steps: • providing a file containing a native 3D-model (21) of the electric discharge machining electrode; • providing a manufactured electric discharge machining electrode (11) based on the native 3D-model; • light scanning a set of images of the manufactured electric discharge machining electrode in different positions and generating therewith a scanned 3D-model (23) of the manufactured electric discharge machining electrode; comparing the native 3D-model (21) and the scanned 3D-model (23) and generating electrode compensation coordinates for an electric discharge machining apparatus, to correct an electrode path during electric discharge machining.

Abstract translation: 描述了一种用于检查放电加工电极（11）的几何形状的方法。 该方法包括以下步骤：•提供包含放电加工电极的原生3D模型（21）的文件; •基于本机3D模型提供制造的放电加工电极（11）; •在不同的位置对所制造的放电加工电极的一组图像进行光扫描，并产生所制造的放电加工电极的扫描的3D模型（23）; 比较原始3D模型（21）和扫描3D模型（23）并产生放电加工装置的电极补偿坐标，以在放电加工期间校正电极路径。

公开(公告)号：WO2014067868A1

公开(公告)日：2014-05-08

申请号：PCT/EP2013/072383

申请日：2013-10-25

Applicant: NUOVO PIGNONE SRL

Inventor： GRILLI, Marco ,  GIUSTI, Enrico ,  ARCIONI, Massimo ,  CECCONI, Massimiliano

IPC: F01D5/14 ,  B23H1/00 ,  F01D9/02 ,  B23H9/10 ,  B23P15/04

CPC classification number: F01D5/147 ,  B23H1/00 ,  B23H7/02 ,  B23H9/10 ,  B23P15/04 ,  F01D5/18 ,  F01D9/02

Abstract: The method is used for manufacturing a blade (201) of a turbomachine comprising an airfoil portion (202); according thereto at least one external or internal surface of the airfoil portion is obtained by wire electric discharge machining; this is allowed by designing these surfaces as "ruled surfaces" or very close to such kind of surfaces; this method is particularly effective, for forming internal cavities (205) of hollow stator blades of steam turbines; this method allows to manufacture in a single piece hollow blades (201) having root portions and shroud portions. Blade of a turbomachine with an internal cavity wherein the surface of the airfoil of the blade inside the cavity defines grooves perpendicular to the axis of the turbomachine.

Abstract translation: 该方法用于制造包括翼型部分（202）的涡轮机的叶片（201）; 根据该方法，通过电磁放电加工获得翼型部的至少一个外表面或内表面; 这是通过将这些表面设计为“刻面”或非常接近这种表面的; 该方法特别有效，用于形成蒸汽轮机的中空定子叶片的内腔（205）; 该方法允许在具有根部和护罩部分的单件式中空叶片（201）中制造。 具有内腔的涡轮机的叶片，其中在腔内的叶片的翼面的表面限定垂直于涡轮机轴线的凹槽。