Extrusion dies and methods of manufacturing the same
US12122066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2020 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | May 8, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B2003/203
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods of manufacturing an extrusion die (100) having a plurality of pins (600a-c) and a plurality of slots (601) defined by the plurality of pins, each pin having a base, the method including applying a coating material (604) over side walls of the bases of the pins of the extrusion die and removing a portion of the coating material coated over the side walls of the bases of the plurality of pins with a cutting tool (650). In some embodiments, the cutting tool has a cutting width (652) equal to a target slot width (640) of the slots. In some embodiments, applying the coating material over the side walls of the bases of the pins includes overcoating a coating material to a thickness that is greater than a thickness needed to define a target slot width of the slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.