US 11,878,474 B2
Assembly of parts made from thermoplastic material and method for assembling such parts by means of thermoplastic riveting
Christophe Perrier, Toulouse (FR); and Jean Michel Borlot, Teulat Occitanie (FR)
Assigned to LATECOERE, Toulouse Occitanie (FR)
Appl. No. 16/959,192
Filed by LATECOERE, Toulouse Occitaine (FR)
PCT Filed Dec. 26, 2018, PCT No. PCT/EP2018/086875
§ 371(c)(1), (2) Date Jun. 30, 2020,
PCT Pub. No. WO2019/129781, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. 1763425 (FR), filed on Dec. 30, 2017; and application No. 1850649 (FR), filed on Jan. 27, 2018.
Prior Publication US 2020/0398499 A1, Dec. 24, 2020
Int. Cl. B29C 65/62 (2006.01); B29C 65/56 (2006.01); B29C 65/20 (2006.01); B29C 65/60 (2006.01); B29C 65/00 (2006.01); F16B 5/04 (2006.01); F16B 17/00 (2006.01); B29L 31/30 (2006.01)
CPC B29C 65/564 (2013.01) [B29C 65/20 (2013.01); B29C 65/605 (2013.01); B29C 65/62 (2013.01); B29C 66/0242 (2013.01); B29C 66/02242 (2013.01); B29C 66/0326 (2013.01); B29C 66/03241 (2013.01); B29C 66/1122 (2013.01); B29C 66/21 (2013.01); B29C 66/43 (2013.01); B29C 66/71 (2013.01); B29C 66/7212 (2013.01); B29C 66/72141 (2013.01); B29C 66/73921 (2013.01); F16B 5/04 (2013.01); F16B 17/008 (2013.01); B29L 2031/3082 (2013.01); B29L 2031/3085 (2013.01); B29L 2031/3097 (2013.01)] 6 Claims
OG exemplary drawing
1. An assembly method for composite parts with a thermoplastic-matrix material, using thermoplastic riveting, the method comprising the following steps:
overlapping first and second parts by superposing two edge faces of regions facing one another, each part having another opposite face, which remains visible;
bringing a holed heating panel into position on each visible face in such a way that the holes are positioned facing one another;
heating the visible faces to a temperature higher than the melting point of the thermoplastic-matrix material of the parts to begin melting regions of the superposed faces;
inserting at least one holing spike through a first holed heating panel, with successive holing of the first and of the second parts, creating at least one cylindrical bore;
withdrawing the holing spike by continuously moving in the same direction of the insertion or in the opposite direction of the insertion;
replacing one of the holed heating panels with a non-holed heating panel; and
removing a second holed heating panel, thus uncovering a visible face;
wherein an assembly tie comprising a strand made of a composite material with a thermoplastic matrix is then inserted into the cylindrical bore;
wherein the strand is cut off in situ at a correct height;
wherein a second non-holed heating panel is positioned on the uncovered face, also covering the cut strand;
wherein the two non-holed heating panels then compress and heat the two edges of the parts made of thermoplastic material.