Process for manufacturing a mold using three-dimensional computer modelling
US4641270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Apr 24, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/3835
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The process comprises the modelling of the piece and its negative in three dimensions, determination of a main joint plane of the two mold parts, searching for the unstrippable zones by simulating a relative translational movement between the model of the piece and the two parts of the model of its negative defined by the reference plane and by determining the contact zones between the piece and the negative, a determination of the offset joint plane in successive sections of the model of the negative including the zones, modelling of the mobile and fixed impressions as a function of the previously determined joint planes, and manufacture of the mold whose fixed and mobile parts comprise joint planes and impressions in accordance with those previously determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.