Process and device for direct fabrication of a part on a structure
First Claim
1. A process for direct fabrication of at least one part at a predetermined position on a structure, said process comprising the following successive steps:
- a) scanning, via a three-dimensional scanner, the structure in a region of the predetermined position;
b) comparing, by a central unit, a virtual surface mesh of the predetermined position with a real surface mesh of said predetermined position, said virtual surface mesh being calculated by the central unit from modeling data recorded in a first database, and said real surface mesh being calculated by the central unit from data obtained subsequent to the scanning carried out in step a);
c) determining, by the central unit, the existence of one or more gaps between said two meshes, said one or more gaps representing joint clearances in the structure;
d) calculating, by the central unit, data for modeling an inserted part having dimensions which fill up said one or more gaps calculated in step c), to obtain a model of the inserted part;
e) merging, by the central unit, a virtual model of a part, linked with said predetermined position recorded in a second database, with the model of the inserted part calculated in step d), to obtain an adjusted model of the part having geometry adjusted to the structure in the region of the predetermined position;
f) fabricating an adjusted part based upon the adjusted model calculated in step e) by depositing material with a deposition system directly on the predetermined position.
1 Assignment
0 Petitions
Accused Products
Abstract
A process for direct fabrication of a part at a predetermined structural position. The process comprises: a) scanning, via a three-dimensional scanner, the structure in the region of the predetermined position; b) comparing a virtual surface mesh of the predetermined position with a real surface mesh of the predetermined position, the real surface mesh calculated based on data obtained from the scanning; c) determining the gaps between the two meshes; d) calculating the data for modeling an inserted part, the dimensions of which fill up the determined gaps, to obtain an inserted part model; e) merging of a virtual model of a part, linked with the predetermined position, with the inserted part model, to obtain a model adjusted to the geometry of the structure in the region of the predetermined position; f) fabricating, by material deposition, an adjusted part at the predetermined position based on the adjusted model.
14 Citations
18 Claims
-
1. A process for direct fabrication of at least one part at a predetermined position on a structure, said process comprising the following successive steps:
-
a) scanning, via a three-dimensional scanner, the structure in a region of the predetermined position; b) comparing, by a central unit, a virtual surface mesh of the predetermined position with a real surface mesh of said predetermined position, said virtual surface mesh being calculated by the central unit from modeling data recorded in a first database, and said real surface mesh being calculated by the central unit from data obtained subsequent to the scanning carried out in step a); c) determining, by the central unit, the existence of one or more gaps between said two meshes, said one or more gaps representing joint clearances in the structure; d) calculating, by the central unit, data for modeling an inserted part having dimensions which fill up said one or more gaps calculated in step c), to obtain a model of the inserted part; e) merging, by the central unit, a virtual model of a part, linked with said predetermined position recorded in a second database, with the model of the inserted part calculated in step d), to obtain an adjusted model of the part having geometry adjusted to the structure in the region of the predetermined position; f) fabricating an adjusted part based upon the adjusted model calculated in step e) by depositing material with a deposition system directly on the predetermined position. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A device for implementation of a process for direct fabrication of at least one part at a predetermined position on a structure, comprising:
-
a central unit, a material deposition system, a measuring system comprising at least one three-dimensional scanner, first database, and a second database, the first database comprising data for modeling a virtual structure including adjacent points representing an equivalent of said predetermined position in a model of the virtual structure, and the second database comprising a virtual model of a part to be fabricated at said predetermined position, said at least one scanner providing to the central unit, in use, data relating to the geometry of the predetermined position, the central unit being configured to calculate a model of an adjusted part on the basis of the virtual model and on the basis of the data provided by the at least one scanner, and to control the material deposition system for the fabrication of a part by deposition of material at the predetermined position according to the model of the adjusted part. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. A process for direct fabrication of at least one part at a predetermined position on a structure, said process comprising the following successive steps:
-
receiving, by a central unit, position data of a device, wherein the position data relates to a position of the device within the structure; determining a position of the device within a virtual structure based upon the position of the device within the structure; scanning the structure in a region of the predetermined position by the device with a three-dimensional scanner; comparing a virtual surface mesh of the predetermined position with a real surface mesh of said predetermined position, said virtual surface mesh being calculated by the central unit from modeling data recorded in a first database, and said real surface mesh being calculated by the central unit from data obtained subsequent to the scanning; determining, by the central unit, the existence of one or more gaps between said two meshes, said one or more gaps representing joint clearances in the structure; calculating, by the central unit, data for modeling an inserted part having dimensions which fill up said one or more gaps, to obtain a model of the inserted part; merging, by the central unit, a virtual model of a part, linked with said predetermined position recorded in a second database, with the model of the inserted part, to obtain an adjusted model of the part having geometry adjusted to the structure in the region of the predetermined position; fabricating, by depositing material with a deposition system, an adjusted part directly on the predetermined position based upon the adjusted model; and
,changing the position of the device within the structure after fabricating the adjusted part directly on the predetermined position. - View Dependent Claims (16, 17, 18)
-
Specification