Complete machining of components for small power plants
Up to the end of the 19th century, energy was generated by means of human and animal power. The rapid progress brought about by the industrial revolution meant that faster, more efficient solutions were found. We’re talking about all kinds of special small power plants. WFL is established in this sector and offers complete machining for a range of different small power plant components.
Workpieces for energy technology applications and components for small power plants such as turbine and generator shafts and wind energy plant components are produced with extremely stringent tolerances and place great demands on the machining process. A MILLTURN provides the necessary special technologies for efficient production of such workpieces, such as milling special profiles or large gear teeth, as well as grinding shaft components, including measurements of true run-out and concentricity to ensure compliance with the very highest requirements for precision.
Components for small power plants:
• Valve
• Pump wheel
• Turbine shaft
• Gear shaft
• Turbocharger shaft
• Generator shaft
Technologies:
• Milling of dovetail profiles
• Milling of fir tree profiles
• Grinding
• Run-out and concentricity measurement
• Turning with pivoting B-axis
Example: One sector of components for small power plants is generator shafts:
The untensioned blank in the generator shafts is often pre-turned and turned into a MILLTURN with welded-on bars. One of the most important aspects of machining the welded-on bars is ensuring that the blank is aligned in the circumferential direction in such a way that the longitudinal grooves are inserted in the centre of the bars. Thanks to the WFL measuring cycles, measurement of this blank is fully automated, with it even being possible to determine and correct welding errors. In the shaft area, inclined ø 60 mm bores must be inserted, which meet the ø 100 mm centre bore at a depth of approx. 500 mm. All bores can be inserted in the MILLTURN without any tools, with very elegant rounding of the edges of the bores being carried out too. The precise outside diameter of the bars that is to be machined is finished in IT7 quality by means of turn-milling. Bearing seats on the pins are rotated with maximum precision and subsequently rolled. The WFL in-process measuring guarantees process reliability, even with IT6 quality.