Wind Power

Key technical solutions for the use and optimization of cutting tools in the wind power industry

1. Innovation in tool materials and coatings
   1）Application of Superhard Composite Materials
   Using diamond (PCD) or cubic boron nitride (PCBN) cutting tools, the impact toughness is improved through nanocomposite technology. For example, the third-generation PCBN cutting tools can have a lifespan of up to 1000 minutes in quenched steel processing.
   Diamond coated cutting tools (such as DLC coating) can reduce cutting temperature by 200 ℃ and achieve a surface roughness of Ra0.2 μ m, making them suitable for composite materials such as carbon fiber reinforced plastic (CFRP).
   2）Gradient structure design
   By using gradient coating technology (such as MT-CVD material) to improve tool stability, the tool life was increased by 100% in a certain case.
2. Cutting parameters and process optimization
   1）Parameter adjustment strategy
   Control cutting line speed: It is recommended to use titanium alloy at 30-110m/min and nickel based alloy at 20-50m/min to avoid medium speed cutting and reduce chip buildup.
   Adopting cycloidal machining or high feed milling can reduce cutting force and temperature, and improve efficiency by 22%.
   2）Intelligent process optimization
   Digital twin technology can virtually verify tool paths, reducing the process validation cycle from 14 days to 36 hours.
   Five axis CNC technology optimizes tool angles and reduces delamination issues in blade machining.
3. Typical cases and equipment selection
   1）Successful Cases
   A certain wind turbine spindle is processed using T9415 and CN25-RM groove type cutting tools, which increase efficiency by 22% and double the lifespan.
   Laser cutting technology improves efficiency in blade manufacturing, while waterjet cutting is suitable for composite materials.
   2）Equipment selection principles
   Prioritize bridge/gantry CNC machine tools to meet the machining needs of ultra long blades.
   Balancing cutting accuracy and speed, balancing equipment cost and maintenance cost.
   Through material innovation, intelligent processes, and refined management, the performance and processing efficiency of cutting tools in the wind power industry can be significantly improved.