Crown Grinding (Crowning)
Grinding Example of Ultra Precision Double Column Surface Grinding Machine 3
世界最高の精度のベッド研削盤。ナガセインテグレックスの超精密門形静圧研削盤ORIGINseriesによる工作機械のベッド研削などに必要なクラウニング研削加工・ヨーイング加工の事例をご紹介。
Shape Form Grinding of a Few Microns on Metric Size Machine Tool Parts.
Crown grinding is the process of machining the surface of a workpiece into a convex or concave shape. The creation of convex and concave shapes of a few micrometers/m is required for guideway surfaces of machine tools and other equipment. NAGASE's double column surface grinding machine realize crowning of large workpieces with such precision that they could be mistaken for small- or medium-sized grinding machine. This is made possible by a high degree of accuracy in following vertical axis NC commands in 0.1μm increments, and by a high-dimensional fusion of well-established large ultra-precision element technologies, such as hydrostatic gConvex and concave shapes/Synchronous controluideways and linear motor drives.
Works
Bed Grinding
(Shape form machining of large machine workpieces)
Material: Cast metal
Size: 220 x 220 x 2000mm
Machine：ORIGIN-10025
W Crown Grinding
(Convex and concave shapes/Synchronous control machining of table feed-axes and cross-axes)
Form error: Less than 2μm
Form: 11μm double crowning/5m
Material: Cast metal
Machine: ORIGIN-10025
①Crown Grinding
(Mid-convex shape/Synchronous control of vertical-axes and table feed-axes)
Form error: 2.03μm
Form: 5mm mid-convex /2m
Material: Cast metal
Size: 220 x 220 x 2000mm
Machine: ORIGIN-10025
②Crown Grinding
(Mid-concave shape/Synchronous control of vertical-axes and table feed-axes)
Form error: 1.82μm
Form: 5mm mid-concave /2m
Material: Cast metal
Size: 220 x 220 x 2000mm
Machine: ORIGIN-10025
③Yaw Grinding
(Convex shape/Synchronous control of cross-axes and table feed-axes)
Form error: Less than 2μm
Form: 10μm convex /2m
Material: Cast metal
Size: 220 x 220 x 2000mm
Machine: ORIGIN-10025
Machining Point of ①, ②, and ③
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.)