July 2007 Issue
July 2007
Features
Featured articles from the latest issue of Modern Machine Shop
Get A (Tight) Grip
High toolholder gripping torque reduces the likelihood that a tool will slip within a toolholder during a cutting operation. A mechanical toolholder design provides a very high gripping torque via a worm gear that compresses a shallow-taper collet tightly around a tool shank.
Read MoreRobots Make A Clean Sweep
A plant already effective at using robots for work handling applies robots to the end of the process as well, using them to clean and deburr intricate parts.
Read MoreA Machine Designed With Contract Shops In Mind
This five-axis, moving-column machine features a table configuration allows C-axis rotation of small- to medium-sized parts as well as fixturing of very long workpieces.
Read MoreDesktop 3D Scanner Captures Part Shapes
This desktop laser scanning system allows 3D objects to be digitized so that the data can be used to create part geometry for tool path generation. The system's ease of use and low cost make reverse engineering available to machine shops that could not previously access this technology.
Read MoreChip Conveyor Selector Guide
A chip conveyor can dramatically reduce a machine tool’s chip cleanup time and maintenance needs. Machine tool supplier Hurco shares this matrix of the chip conveyor suggestions it gives to users of the company’s lathes. To view the chip selector guide, please see table below … .
Read MoreWhen To Use A Spindle Chiller
Because conventional spindles on machining centers are typically designed with a fixed bearing preload (no springs), there isn’t any compensation for the thermal expansion that occurs from heat generation. Higher temperatures cause the bearing raceways to expand and tighten. This causes the bearing system to increase its preload beyond the original setting, which leads to increased axial and radial loading on the bearing system.
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