Rapid non-contact energy transfer for additive manufacturing driven high intensity electromagnetic fields
US10124531B2 · kind B2 · utility
1Cited by
48References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 2013 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Nov 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2055/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for additive manufacturing that includes a nozzle and/or barrel for extruding a plastic material and a supply of polymeric working material provided to the nozzle, wherein the polymeric working material is magnetically susceptible and/or electrically conductive. A magneto-dynamic heater is provided for producing a time varying, high flux, frequency sweeping, alternating magnetic field in the vicinity of the nozzle to penetrate into and couple the working material to heat the material through at least one of an induced transient magnetic domain and an induced, annular current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.