What might be the meaning for "ground" here ?
After heating, the blades are annealed, this process of heating and annealing ensures that each blade has the right blend of hardness ,durability and flexibility. The blades are ground to give them sharpness, 90 percent of the grinding is done by robots.
Past participle of "grind". org/wiki/grind#Verb : To remove material by rubbing with an abrasive surface. Palabra After heating, the blades are annealed, this process of heating and annealing ensures that each blade has the right blend of hardness, durability and flexibility.
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Past participle of "grind". Sense #3 at https://en.wiktionary.org/wiki/grind#Verb:
To remove material by rubbing with an abrasive surface.
PalabraAfter heating, the blades are annealed, this process of heating and annealing ensures that each blade has the right blend of har