Hybrid automotive side sill and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9616934-B2
Application number	US-201514835364-A
Country	US
Kind code	B2
Filing date	Aug 25, 2015
Priority date	Mar 12, 2015
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

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.

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

• B62D29/005

  preformed metal and synthetic material elements being joined together, e.g. by adhesives · CPC title

• B29L2031/3002

  Superstructures characterized by combining metal and plastics, i.e. hybrid parts · 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