Index Grinding
Grinding Examples of Ultra Precision Gear Forming Grinding Machine 1
「目指すは世界一の歯車研削加工精度」。ナガセインテグレックスの超精密歯車研削盤(ギア研削盤)SUGseriesなどによる超硬やハイスなどのセレーションパンチ加工・歯車研削加工事例をご紹介。
Index Grinding of Serration and Spline Shapes with Zero Polishing Process.
Serration punch machining is the grinding of workpieces with multiple grooves on the axis used in cold forging and plate forging processes. Target materials include high-speed tool steel and carbide materials. NAGASE's gear grinding machine can produce mirror-finished gear-shaped parts, which were previously finished by hand lapping, by grinding alone. The indexing accuracy is such that it can be used for spline gauge grinding and master gear grinding. We have also developed a high-precision indexing unit that can perform these serration operations on a surface grinder.
Works

Ultra Precision Form Grinding of Gear Punch (YXR7)
Form accuracy: ±2μm
Roughness: 58nmRa, 264nmRz
Material: YXR7
Size: ⌀71 x 30mm
Machine: SUG-300SL3S-N5

Ultra Precision Form Grinding of Serration Punch (SKH-55)
Form accuracy: ±2μm
Roughness: 32nmRa, 248nmRz
Material: SKH55
Size: ⌀120 x 100mm
Machine: SUG-300SL3S-N5

Ultra Precision Index Grinding of Serration Punch (Carbide)
Indexing accuracy: 1.0μm
Cumulative pitch error: 3.0μm
Roughness: 30nmRa, 180nmRz
Material: Carbide
Size: ⌀18 x 140mm
Machine: SHL-315ALS2-Zero5
+ Ultra precision index on the grinder

Index Grinding of Gear Punch (YXR7)
Accuracy: Old JIS 0 class
Roughness: 70nmRa, 230nmRz
Material: YXR7
Size: ⌀64 x 68mm
Machine: SUG-300SL3S-N
Inquiries
We are experts in ultra-precision machining, If you have any type of machining problems, please feel free to consult us.
Consultations are free of charge. First, please tell us about the precision, size, materials, etc. related to the machining you are considering.
For test machining, prototype machining support, or equipment utilization, our experienced engineers at our Technical Center will examine the most appropriate methods and respond promptly.
(For urgent cases, please contact our regional sales offices.)