Inserted wiper die for high-pressure tube-bending and method...

Details Inserted wiper die for high-pressure tube-bending and method... Inserted wiper die for high-pressure tube-bending and method...

2011-01-18

2011-01-18

Tolan, Edward (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

C072S155000

Reexamination Certificate

active

07870773

ABSTRACT:
The present invention is a wiper die assembly that combines the performance of a solid-body wiper die with the economy of a inserted wiper die for high-pressure rotary-draw tube-bending. The key features of the present invention are: [1] A wiper insert attached to the wiper holder by a mechanical means that retains the bore of the insert as a smooth, uninterrupted working surface, and [2] radius face support shoe attached to the wiper holder that can be adjusted to support and stabilize the entire wiper assembly against the cavity of the bend die.

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