Method and device for producing a workpiece with exact geometry

Details Method and device for producing a workpiece with exact geometry Method and device for producing a workpiece with exact geometry

2008-03-25

2008-03-25

Gupta, Yogendra N (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

C425S375000, C425S404000

Reexamination Certificate

active

10298412

ABSTRACT:
A method and apparatus for the production of a workpiece of exact geometry and high surface quality, such as, for example, a forming tool, are disclosed. Preferably computer-controlled, the apparatus follows the method of the invention to produce the workpiece by radiation and compacting of nxsuccessive layers of powdered starting material, each subsequent layer being formed on the uppermost surface of the previously formed layer. Following the radiation and compacting of each layer, at least one of the vertical lateral faces of the layer and of one or more underlying layers, all of which are surrounded by excess powdered starting material throughout the process, are mechanically finished, for example by a hobbing process or a peripheral grinding process.

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