Method and apparatus for manufacturing rotationally symmetrical constructional parts such as nozzles and combination chambers of rocket engines
US4148121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1978 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Jan 26, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49346
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The constructional parts have walls formed of elongated elements, such as res or tubes, wound spirally in juxtaposition about the axis of symmetry of the part and connected to each other. The elongated elements are bent to shape utilizing a bending device having at least one bending groove conformable to the predetermined three-dimensional geometry of the part to be manufactured. One end of each wire or tube is fixed to the bending device and the other end is engaged in a clamping and adjusting device designed as a combined Cardan swivel joint which, during the bending, it utilized to continuously control the adjustment parameters of the wire or tube, about three mutually intersecting axes, in conformity with such predetermined three-dimensional geometry of the part. The bent elements are then assembled in juxtaposition on an assembly core, separate from the bending device, having an external contour identical with the internal contour of the finished part, and the opposite ends of assembled juxtaposed elements are clamped against movements. The juxtaposed elements are then wrapped with a wire winding extending completely over the juxtaposed elements. The wire winding is then remov…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.