Bending method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 25, 2023
Grant Date -
Nov 8, 2018
app pub date -
Nov 3, 2016
filing date -
Nov 3, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present disclosure provides a method for air bending a plate of material such as steel which is characterised by having two bending steps, wherein the bending punch in the second bending step has a smaller radius and/or the die width used in the second bending step is smaller than the die width used in the first bending step. The method of the disclosure can achieve a significant improvement in the bendability of materials, particularly high strength steels. The disclosure also provides new bending apparatus that are specifically adapted to carrying out the method of the disclosure, including a nested double die having a second narrower die residing below and within the first die, and an adjustable die having a height adjustment means (either in the support, bending punch or both) capable of accommodating movement of the material during the adjustment to form the second die width.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- B21D Class
- 836 Applications Filed
- 615 Patents Issued To-Date
- 73.57 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B21D Class
- 0 % this patent is cited more than
- 2 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
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