Abrading – Precision device or process - or with condition responsive... – Computer controlled
Reexamination Certificate
2006-04-18
2006-04-18
Nguyen, George (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
Computer controlled
C451S049000, C451S057000, C451S177000, C451S189000, C451S190000, C451S194000, C451S223000, C451S261000, C451S262000
Reexamination Certificate
active
07029366
ABSTRACT:
For the machining of a workpiece (18) rotating about a workpiece axis, a first abrasive tool (20), which rotates about a first tool axis, and the workpiece (18) are advanced towards one another, in order to machine a first workpiece face in a first abrasive operation. Further, a second abrasive tool (54), which rotates about a second tool axis (56), is advanced towards the workpiece (18), in order to machine a second workpiece face in a second abrasive operation. The two workpiece faces are designed rotationally symmetrically with respect to the workpiece axis and are arranged adjacently to one another in such a way that a sharp, burr-free, circular transition edge is formed between them. The two abrasive operations are controlled in such a way that they are terminated at the same time. The method and apparatus for abrasive circular machining allow a reliable and accurate machining of workpieces with a sharp and a burr-free transition edge between two rotationally symmetrical faces, even in the manufacture of large series.
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Birch & Stewart Kolasch & Birch, LLP
HTT Hauser Tripet Tschudin AG
McDonald Shantese
Nguyen George
LandOfFree
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