October 2007 Issue
October 2007
Features
Featured articles from the latest issue of Modern Machine Shop
Five-Axis Machining Has Special Workholding Needs
This clamping system allows a workpiece to be rigidly clamped while raised up from the surface of the worktable on a five-axis machining center. Moving the workpiece away from the table creates clearance for the spindle nose and cutting tool when the table swivels the workpiece for multi-sided machining, or when the spindle head rotates and swivels to do contouring or sculptured surfaces. Without this clearance, the user may be forced to refixture the part or to switch to a longer, less rigid tool.
Read MoreHigh Speed Machining Without The Fast Spindle
Relying on axial chip thinning lets a larger-diameter tool realize some of the benefits of high speed machining even if the machine's spindle speed is low.
Read MoreAtomic-Level Engineering For Greater Tool Life
Manipulating the direction of aluminum oxide crystals produces a cutting tool coating that is harder, and also cuts cooler.
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