Method and arrangement for processing thin sheets and...

Details Method and arrangement for processing thin sheets and... Method and arrangement for processing thin sheets and...

2007-07-17

2007-07-17

Carter, Monica (Department: 3722)

Gear cutting, milling, or planing

Milling

Process

C409S136000

Reexamination Certificate

active

11000764

ABSTRACT:
The invention relates to a method for machining thin sheets and thin-walled, single or two-fold curved, three-dimensionally shaped sheets, plates, or shells, in particular, by material-removing machining methods, such as milling and drilling. In the method, a vacuum, surface tension is produced, which is large enough to fix the position of the workpiece, by using a vacuum over a layer acting as a distributor or a diffuser on the surface of the workpiece to be machined. The distributor or diffuser is made up of a thin-walled, completely or partially air-permeable, heat-reactive layer. The workpiece is then machined, and a cutting speed and rate of feed is adjusted, such that a defined local heating takes place in a contact area between the tool and workpiece. The peak temperature at the contact area is greater or the same as a melting temperature of the surface of the distributor or diffuser.

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