Mirror Surface Grinding
Machining Example of Ultra-Precision Forming Surface Grinder 1
「究極のゼロ」。超精密研削盤のナガセインテグレックス。成形平面研削盤による工具鋼やSUS、ガラス、超硬材料などの鏡面研削加工事例をご紹介します。
The Mirror Surface, Achievable Only Through "Polishing", is Made Possible by Precision Machine "Grinding".
Mirror surface grinding (mirror finishing) is a process in which fine abrasive grains are used to uniformly finish the unevenness of a workpiece's surface to a nano-order level.
Generally, a surface roughness of Rz 200 nm or less can be achieved to create a mirror-like, cloudless surface.
NAGASE's ultra-precision grinders have made it possible to create mirror surfaces by "grinding" with a machine, whereas in the past it was only possible to create mirror surfaces by "polishing" over time. Please take a look at the examples of ultra-precision grinding processes around the world that have popularized the concept of "mirror surface grinding" and are still evolving.
Works
Mirror Surface Grinding of Resin Lens Mold
Roughness: 15nmRa, 98nmRz
Flatness: TIR 0.66μm/132 x 100mm
Material: STAVAX
Size: 132 x 100 x 25mm
Machine: SGC-630αS4-Zero3
Ultra-Mirror Surface Grinding of Mold Plates
Roughness: (Hydrostatic spindle)6nmRa, 40nmRz
(Bearing Spindle)8nmRa, 62nmRz
Material: SKD-11
Size: 200 x 200 x 50mm
Machine: (Hydrostatic spindle)SGC-630S4-Zero3
(Bearing spindle)SGE-52BLD2-E2
Ultra-Mirror Surface Grinding from Middle to Large Mold Plates
Roughness: 10nmRa, 90nmRz
Material: SKD-11
Size: 750 x 350 x 40mm
Machine: SGC-840αS4-Zero3
Ultra-Mirror Surface Grinding
Roughness: 1.46nmRa, 11.6nmRz
Material: HPM-38
Size: 125 x 45 x 15mm
Machine: SGC-630αS4-Zero3
Scratchless T-Die Mirror Surface Grinding
Roughness: 9nmRa, 85nmRz
Material: SUS630
Size: 600 x 100 x 30mm
Machine: SGC-154SLS2-PCnc
Mirror Surface Grinding of Aspherical Lenses
Form accuracy: 0.8μm
Roughness: 1.3nmRa, 9.9nmRz
Material: Clearceram
Size: ⌀200mm
Machine: SGC-630αS4-Zero3
Inquiries
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(For urgent cases, please contact our regional sales offices.)