Modern Machine Shop

MAY 2018

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

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Page 95 of 179

z z z BETTER PRODUCTION MMS MAY 2018 94 CENTERLESS GRINDING grinding process. Preparing the Giz- motron shaft for grind- ing required ensuring that initial turning of the shaft's profile (an operation conducted on an L20 Type IX Swiss-type lathe from Marubeni-Citizen Cincom) leave 0.005 inch of extra material on the main diameter. The shaft was then placed on a work-support blade between the grinding and regulating wheels of Cincinnati Milacron Cinco 15, an NC-con- trolled centerless grind- ing machine with CNC dresser. The extra stock left by the turning oper- ation ensured that the grinding wheel, wide enough to cover the Cut your COOLANT disposal costs up to 90%. RECYCLE AND REUSE METALWORKING COOLANTS The PRAB Guardian™ Coolant Recycling System is a centralized collection point that removes tramp oil and suspended solids from contaminated coolant, controls bacteria and can adjust fluid concentration, for coolant reuse and significant cost savings. z Fast Payback- Average return is 6 to 9 months. z Reduce Disposal Costs- up to 90%. z Recycle Coolant- Remove tramp oils to 0.1% or less. (888) 324-2576 The height of the work blade support is critical in center- less grinding. Mounting a workpiece with high or low points along its periphery at the centerline of the wheels, as shown at left, generates a lobed shape like the exaggerated one shown at right. This shape has a constant diameter, but making it round as well requires elevating the work blade. Precise positioning varies by application. WORK REGULATING WHEEL GRINDING WHEEL WORK BLADE

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