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Industry News

How is the special shape of cast steel blade processed

2020-06-09 00:00

At present, many SULZER Sand Casting Supplier turbofan engines still use the more mature titanium alloy damping fan blades. The narrow and long structure of this blade profile makes its weak rigidity in the form of thin-walled structure in the direction of the basin back more prominent.

The poor rigidity of the structure and the large surface area of the profile, the nature of the material being difficult to process, have an adverse effect on the traditional machining process, which is intuitively reflected in the contour size accuracy and position accuracy of the profile It is difficult to guarantee, the efficiency of manual polishing is low, the labor intensity is large, and the leaf type is prone to burn and ablation. The existence of the above problems constitutes a bottleneck for blade production.


With the development and application of multi-axis linkage CNC machining technology and the research on the machining technology of this blade profile, the difficulties of this blade profile machining have been gradually broken through, and the machining quality and efficiency level have reached a relatively ideal state.The fan blades of the large bypass ratio turbofan engine have basically reached more than 500MM in terms of length and size.


This large-scale structural feature makes the centrifugal force and vibration stress to be very large during their work, so it has also become a large turbo fan engine Very important parts.The processing of difficult-to-machine steel such as high-manganese steel, stainless steel and alloy steel is also suitable for the processing of ordinary steel and cast iron is used for finishing and semi-finishing of stainless steel, alloy steel, high strength steel and ultra high strength steel. It can also be roughed under low impact force.