Quality • Innovation • Progress

Out-of-Round Work When Plunge Grinding

Problem Cause Correction
Out-of-Round Work When Plunge Grinding Work piece center holes out of round or not in line Relap center holes
Burrs in work piece center holes Clean holes
Work loose on centers Be sure footstock and headstock are clamped
Centers loose Tighten and clean centers
Center holes do not fit spindles Replace and clean centers
Center goles out-of-round Regrind center holes
Work piece center holes not deep enough Deepen holes or blunt center points slightly
Work centers scored Regrind centers and lubricate
Center points worn down Regrind centers
Work too tight on centers Loosen footstock spring tension
Insufficient coolant Readjust coolant flow