RETRUING OF A GRINDING WHEEL USING EDM MACHINE
First Claim
1. A process for retruing a profile in an electrically conductive abrasive wheel comprising:
- providing a lathe table including at least one edged cutting tool;
fixturing the wheel having at least one outside metal edge and an abrasive grit matrix adjacent thereto for rotation along an axis compatible for lathe removal of metal material at at least the outside edge of the wheel;
removing a predetermined amount of material along the outside edge with the edged cutting tool;
providing a rotating electrical discharge profiling tool attached to an electrical discharge machine, for rotating the electrical discharge profiling tool along an axis in a direction to provide electrical discharge profiling of an abrasive surface of the abrasive grit matrix of the wheel; and
,profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrical discharge profiling tool.
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Accused Products
Abstract
A process for retruing a profile in an abrasive wheel is provided. A lathe table including an edged cutting tool is used for fixturing a grinding wheel having an outside metal edge and an abrasive matrix adjacent thereto for rotation along an axis compatible for lathe removal of material at at least the outside edge of said wheel. A predetermined amount of material along said edge with the edged lathe cutting tool is removed using the lathe cutting tool. A rotating electrical discharge profiling tool which is attached to an electrical discharge machine is used for profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrode. The process uses a machine specifically designed for electrical discharge machining of the profile. The machine also has a mechanism cutting a predetermined profile into the electrode without removing it from the machine.
10 Citations
20 Claims
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1. A process for retruing a profile in an electrically conductive abrasive wheel comprising:
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providing a lathe table including at least one edged cutting tool; fixturing the wheel having at least one outside metal edge and an abrasive grit matrix adjacent thereto for rotation along an axis compatible for lathe removal of metal material at at least the outside edge of the wheel; removing a predetermined amount of material along the outside edge with the edged cutting tool; providing a rotating electrical discharge profiling tool attached to an electrical discharge machine, for rotating the electrical discharge profiling tool along an axis in a direction to provide electrical discharge profiling of an abrasive surface of the abrasive grit matrix of the wheel; and
,profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrical discharge profiling tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A process for retruing a profile in an electrically conductive abrasive wheel comprising:
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providing a lathe device including at least one edged cutting tool; fixturing the wheel having at least one outside metal edge and an abrasive grit matrix adjacent thereto for rotation along an axis in a direction compatible for lathe removal of metal material at at least the outside edge of the wheel; removing a predetermined amount of material along the outside edge with the edged cutting tool; providing at least one cutting tool attached to an electrical discharge machine for selectively retruing a rotating electrical discharge profiling tool, said rotating electrical discharge profiling tool attached to the electrical discharge machine for rotating the electrical discharge profiling tool along a parallel axis in a direction to provide electrical discharge profiling of an abrasive surface of the abrasive grit matrix of the wheel; profiling the electrical discharge machine with the cutting tool; and
,profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrical discharge profiling tool, wherein the electrical discharge profiling tool and wheel are rotatable along the axis and parallel axis in the same or different directions. - View Dependent Claims (15, 16)
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17. A machine for retruing of a profile in an abrasive wheel comprising:
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an electrical discharge machine configured for controlled rotation of a profiling abrasive wheel to be retrued along a first axis; said machine including a spindle adapted for rotation of an electrode in a parallel axis to the first axis and said electrode having an outer circumferential profile for contacting the profile to be retrued of the abrasive wheel by electrical discharge machining; and
,a cutting tool mechanism adapted for contacting and reforming the contour of the electrode without removing the electrode from its spindle to provide a predetermined contour in the electrical machining surface of the electrode which has zero peripheral runout. - View Dependent Claims (18, 19, 20)
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Specification