Grinding is widely applied in the aeronautical manufacture industry as an important process technique to guarantee the machining quality of those precision and ultra-precision components. Grinding has been developed into an enabling technology featuring high precision

high machining quality and also high process efficiency. It is capable to achieve high process efficiency with satisfactory machining accuracy and surface integrity. Driven by the application requirements and also the improvements of theoretical understanding

various high-performance grinding techniques have been developed beyond the limits of conventional grinding concepts. By using very high grinding wheel speeds

large depths of cut and also high worktable speeds

HEDG (High efficiency deep grinding) process can achieve extremely high machining efficiency

with good surface integrity on the ground workpiece surface. HEDG process has been successfully applied for the high efficiency grinding of turbine blade roots

showing excellent machining performance. HSSG (High speed stroke grinding) process is based on the linear drive technology for the worktable movement

pushing the feed rate toward an extremely high level

resulting in beneficial heat transfer conditions with most of the heat generated in the grinding zone being removed by the grinding chips

thus capable to achieve high grinding efficiency with good surface integrity. For the precision grinding of thin-walled slender shafts with high ratios of length over diameter

quick-point grinding technique provides the possibility to ensure both machining accuracy and machining efficiency. For the deepcut profile grinding of turbine blade roots using CFG (Creep-feed grinding) process

the heat transfer condition is rather complicated

further research work related with the heat transfer problems under the conditions of deep-cut and complex contact geometry is needed; Further research aspects also include process design method regarding the set up of parameters at different stages including roughing

semi-finishing and finishing

and intelligent process monitoring and optimization approaches. High efficiency deep grinding approach can also be applied for the deep-cut grinding of aluminum alloys widely used in aeronautical industry

whilst high speed and ultra-high speed grinding technique has good potentials to be applied for the machining of silicon carbide reinforced aluminum composites. High speed fly-grinding of the rotating blade tips assembled on the turbine disks

presents another application area of high speed and ultra-high speed grinding technique.