METHOD FOR MANUFACTURING HOLLOW HYDRO-FORMED PRODUCT using MULTI-TUBE ASSEMBLY
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United States of America Patent
Stats
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N/A
Issued Date -
Nov 26, 2015
app pub date -
Feb 15, 2013
filing date -
Feb 13, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for manufacturing a hollow hydro-formed product using a multi-tube assembly is provided, which comprises the steps of: (a) stably placing a multi-tube assembly in a Die, the hollow inner tube having fluid channel holes radially formed therethrough; (b) injecting fluid into the inner periphery of the inner tube; (c) applying fluid pressure to the inner periphery of the outer tube by the fluid while the fluid is discharged through the fluid channel holes of the inner tube; and (d) obtaining a formed product having an intended outer peripheral shape completed according to diameter-enlargement and plastic deformation of the outer tube. The inner periphery of the outer tube is pressed and hydro-formed by discharging the fluid through the fluid channel holes of the inner tube formed through the inner tube of the multi-tube assembly.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| KR | B1 | KR101454791 | Feb 13, 2013 |
| WO | A1 | WO2014126280 | Feb 15, 2013 |
International Classification(s)
- 2013 Application Filing Year
- B21D Class
- 696 Applications Filed
- 611 Patents Issued To-Date
- 87.79 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B21D Class
- 19.97 % this patent is cited more than
- 10 Age