I have learnt CREO just as a part of the curriculum from my institution, and know only a few basic tools from the creo.
I want to have something like that but it is irregular in the model you attached. Moreover, it is also changing the basic shape of the blade.
can we make it as a curve driven??? And without affecting the basic shape???
Boundary Blend, Sweep, Sweep Blend, pick your poison. Get your curves set up. Figure out how you are going to manage tangencies, or worse, continuous surfaces. NOT a simple undertaking.
If you have the surfaces module, you may have better options.
Core Creo is simply lacking in quality engineering surfaces.
Of course my model was a quick push and pull. It follows its own rules. Even Wrap is an adventure!
The vertical surface is from the truncated portion of a standard airfoil. Forward of that location is being replaced with the new geometry. It takes little imagination to see that creating the entire airfoil by using more guide curves would allow you to do whatever is required.
The reason I mention the surfacing module is that it has better ways to blend surfaces.
With core Creo, it is tedious at best to join surfaces with a high degree surface quality.
I have already attached the model in the first post of my thread and waves can be of sine eqn and amplitude or wavelength or no. of turns can be of any number