Dear 各位大大们 小弟想请教一下以下几个定义: 1.Hemstitching (Kellering): Hemstitching is a term commonly used to describe the characteristic displacement of the surface resulting from certain techniques in numerical controlled or tracer controlled machining. The hemstitching pattern results on flat, inclined or contoured surfaces using ball-nosed end mills or on inclined or contoured surfaces using end mill or face mill cutters 2.Ramp: A cutter ramp is a special case of mismatch, at intersections of non-vertical flanges with webs. Cutter ramps are used to reduce machining cost of parts 小弟不是非常地清楚这个定义指的是什麽?有高手大大可以帮忙解惑吗? --

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