What is spindle rigidity?
The formula for stiffness is Stiffness (K) = Applied Force (F) ÷ Displacement (δ). Here are the inspection criteria.
Spindle rigidity refers to the ability to suppress deformation in response to external forces, and is typically expressed in N/μm (Newtons/microns). When spindle rigidity is insufficient, elastic deformation and vibrations are more likely to occur during machining, leading to issues such as reduced dimensional accuracy and deterioration of surface roughness. Furthermore, uneven bearing loads can occur, potentially adversely affecting long-term operational stability. On the other hand, a high-rigidity spindle design improves machining stability, contributes to the reduction of machining errors and tool wear, and can maintain high-precision machining quality over extended periods. 【Rigidity Calculation Formula】 ■K = Rigidity (N/μm) ■F = Applied Force (N) ■δ = Displacement (μm) *For more details, please download the PDF or feel free to contact us.
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