Hybrid Automotive Side Sill and Manufacturing Method Thereof

Patent metadata

Field	Value
Publication number	US-2016264190-A1
Application number	US-201514835364-A
Country	US
Kind code	A1
Filing date	Aug 25, 2015
Priority date	Mar 12, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

The present disclosure provides a hybrid side sill for an automobile. The hybrid side sill may includes a pultruded profile part including a continuous fiber reinforced thermoplastic polymer, which has a heat deflection temperature of at least 200° C., and a terminal part including steel, which is attached to an end portion of the pultruded profile part. The present disclosure further provides an automobile body including such a hybrid side sill and also a method of manufacturing a hybrid side sill for an automobile. The manufacturing method includes a step for forming a pultruded profile part including a continuous fiber reinforced thermoplastic polymer, which has a heat deflection temperature of at least 200° C., and a step for attaching a terminal part made of steel to an end portion of the pultruded profile part.

First claim

What is claimed is:

1 . A hybrid side sill for an automobile, comprising:
a pultruded profile part comprising a continuous fiber reinforced thermoplastic polymer, which has a heat deflection temperature of at least 200° C.; and a terminal part comprising steel, which is attached to an end portion of the pultruded profile part.

2 . The hybrid side sill according to claim 1 , wherein the continuous fiber reinforced thermoplastic polymer has a heat deflection temperature of at least 220° C.

3 . The hybrid side sill according to claim 1 , wherein the continuous fiber reinforcement thermoplastic polymer has a heat deflection temperature of at least 230° C.

4 . The hybrid side sill according to claim 1 , wherein the thermoplastic polymer comprises a semi-aromatic polyamide.

5 . The hybrid side sill according to claim 1 , wherein the thermoplastic polymer comprises a polyphthalamide.

6 . The hybrid side sill according to claim 1 , wherein the terminal part is glued to the pultruded profile part.

7 . The hybrid side sill according to claim 1 , wherein the terminal part is glued to the pultruded profile part by using a one-component epoxy glue.

8 . The hybrid side sill according to claim 1 , further comprising at least one metal bracket attached to the pultruded profile part.

9 . The hybrid side sill according to claim 8 , wherein said at least one metal bracket is placed within a convex profile portion of the pultruded profile part.

10 . The hybrid side sill according to claim 1 , wherein at least one crash can comprising at least one of steel or a thermoplastic polymer is attached to the pultruded profile part.

11 . An automobile body comprising the hybrid side sill according to claim 1 , the automobile body being covered with a paint layer baked at a baking temperature of at least 190° C.

12 . A method of manufacturing a hybrid side sill for an automobile, the method comprising the following steps:
forming a pultruded profile part comprising a continuous fiber reinforced thermoplastic polymer, which has a heat deflection temperature of at least 200° C.; and attaching a terminal part comprising at least one of steel or a thermoplastic polymer to an end portion of the pultruded profile part.

13 . The method according to claim 12 , wherein the pultruded profile part is formed by a reactive pultrusion involving polyaddition of chain extenders.

14 . The method according to claim 13 , wherein the chain extenders comprise at least one aromatic ring.

15 . The method according to claim 13 , wherein a pultrusion die for performing the reactive pultrusion is heated to a die temperature of at least 340° C.

16 . The method according to claim 12 , wherein the terminal part is attached by gluing to the pultruded profile part.

17 . The method according to claim 16 , wherein the terminal part is attached to the pultruded profile by using a one-component epoxy glue.

18 . The method according to claim 12 , further comprising a step of attaching at least one crash can comprising a fiber reinforced thermoplastic polymer to the pultruded profile part.

19 . The method according to claim 18 , further comprising a step of forming the at least one crash can by pultrusion.

20 . The method according to claim 12 , further comprising steps of:
mounting the hybrid side sill with an automobile body; applying paint to the automobile body; and baking the painted automobile body at a baking temperature of at least 190° C.

Assignees

• Hyundai Motor Co Ltd
• Hyundai Motor Europe Technical Center Gmbh
• Kia Motors Corp

Inventors

• Richeton Julien
• Hansen Hermann
• Ringenbach Stephane

Classifications

• B62D25/025 Primary

  Side sills thereof · CPC title

• B62D29/04 Primary

  predominantly of synthetic material (working of plastics or substances in a plastic state B29) · CPC title

• B62D65/06 Primary

  the sub-units or components being doors, windows, openable roofs, lids, bonnets, or weather strips or seals therefor {(assembling sealing arrangements with vehicle parts, e.g. doors, windows B60J10/45)} · CPC title

• B29K2705/12

  Iron · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title