发明名称 |
METHODS OF MANUFACTURING BLADES OF TURBOMACHINES BY WIRE ELECTRIC DISCHARGE MACHINING, BLADES AND TURBOMACHINES |
摘要 |
<p>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.</p> |
申请公布号 |
CA2888416(A1) |
申请公布日期 |
2014.05.08 |
申请号 |
CA20132888416 |
申请日期 |
2013.10.25 |
申请人 |
NUOVO PIGNONE SRL |
发明人 |
GRILLI, MARCO;GIUSTI, ENRICO;ARCIONI, MASSIMO;CECCONI, MASSIMILIANO |
分类号 |
F01D5/14;B23H1/00;B23H9/10;B23P15/04;F01D9/02 |
主分类号 |
F01D5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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