Method for forming splines in sheet metal
US4397171A · kind A · utility
10Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Jul 27, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2250/0023
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sheet metal blank is placed at the entrance of a die having a splined interior contour. A punch having a conjugate splined surface enters and passes longitudinally through the die. The splines are formed by passing the blank and punch through the die within an annular space whose contour defines the final spline configuration. Alternatively, preformed splines having a large pressure angle and full corner radii are reformed by multiple passes through dies whose configurations vary to produce shallow pressure angle splines and tight corner radii.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.