Fiber composite part of a motor vehicle, mounting part for such a fiber composite part and manufacturing method

Abstract

A mounting part ( 11 ) for affixing a composite fiber part of a motor vehicle to at least one adjoining component of a motor vehicle is made from a fiber composite material. The mounting part ( 11 ) has a three-dimensionally shape that defines ribs and/or webs and/or protrusions and/or depressions.

What is claimed is: 
     
         1 . A mounting part for affixing a fiber composite part of a motor vehicle to at least one adjoining component of the motor vehicle, the mounting part being made from a fiber composite material and having a three-dimensionally shape with at least one of a rib, a web, a protrusion and a depression. 
     
     
         2 . The mounting part of  claim 1 , wherein the mounting part is made from a carbon fiber reinforced or a glass fiber reinforced polymer. 
     
     
         3 . The mounting part of  claim 2 , wherein carbon fiber reinforced or a glass fiber reinforced polymer has fibers of between 3 mm and 100 mm in length. 
     
     
         4 . The mounting part of  claim 3 , wherein carbon fiber reinforced or a glass fiber reinforced polymer has fibers of between 20 mm and 80 mm in length. 
     
     
         5 . The mounting part of  claim 3 , wherein the fibers are of one length. 
     
     
         6 . The mounting part of  claim 3 , wherein the fibers are of at least two different lengths. 
     
     
         7 . The mounting part of  claim 1 , wherein the mounting part comprises between 30% by volume and 70% by volume fibers and between 70% by volume and 30% by volume a thermosetting polymer. 
     
     
         8 . The mounting part of  claim 7 , wherein the mounting part comprises between 40% by volume and 65% by volume fibers and between 60% by volume and 35% by volume a thermosetting polymer. 
     
     
         9 . A composite part of a motor vehicle, comprising at least one mounting part made from a fiber composite material and incorporated or embedded in the fiber composite matrix for affixing the composite part to at least one adjoining component of the motor vehicle, the mounting part defining three-dimensional shape with at least one of a rib, a web, a protrusion and a depression. 
     
     
         10 . The fiber composite part of  claim 9 , wherein the fiber composite matrix is made from a carbon fiber reinforced or a glass reinforced composite material. 
     
     
         11 . The fiber composite part of  claim 10 , characterized in that the fiber composite matrix and the mounting parts are made from identical fiber material but of different lengths, and from an identical thermosetting polymer material. 
     
     
         12 . A method for manufacturing a mounting part for embeddment in a fiber composite matrix to define a composite part of an automobile, the method comprising: preparing a liquid or flowable mixture of polymer and fibers, filling the mixture being into a three-dimensionally shaped mold for the mounting part, closing the mold, and curing the mounting part for a defined period of time at a defined temperature and a defined pressure. 
     
     
         13 . The method of  claim 12 , wherein the curing step comprises curing the mounting part in the mold for a period of between 0.5 min and 10 min at a temperature between 100° C. and 200° C. and at a pressure of more than 100 bar. 
     
     
         14 . The method of  claim 12 , wherein the liquid mixture or the mixture with flowing characteristics comprises between 30% by volume and 70% by volume fibers and between 70% by volume and 30% by volume thermosetting polymer, with the fibers having lengths of between 3 mm and 100 mm. 
     
     
         15 . The method of  claim 14 , wherein the liquid mixture or the mixture with flowing characteristics comprises between 40% by volume and 65% by volume fibers and between 60% by volume and 35% by volume thermosetting polymer, with the fibers having lengths of between 20 mm and 80 mm. 
     
     
         16 . The method of  claim 12 , further comprising placing the cured mounting parts in the fiber composite matrix in an uncured state and then curing the fiber composite matrix around the cured mounting part to form fiber composite part for the automobile.