Sandwich component and method for the production thereof

A sandwich structure and component technology, applied in the direction of upper structure, upper structure sub-assembly, chemical instruments and methods, etc., can solve the problems of high cost, unsuitable for auto parts processing, etc.

Inactive Publication Date: 2012-10-03
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These manufacturing methods can only produce a small number of pieces, the cost is high and therefore not suitable for high-volume automotive parts processing
Also, the high value materials used make the cost prohibitive

Method used

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  • Sandwich component and method for the production thereof
  • Sandwich component and method for the production thereof
  • Sandwich component and method for the production thereof

Examples

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Embodiment Construction

[0046] The sandwich structure according to the invention relates primarily to automotive components, which may be load-bearing components such as floor panels or rear seat backrests, but also to the production of trim parts, in particular for the interior of vehicles.

[0047] Suitable cellulosic materials for the honeycomb core include paper or paperboard.

[0048] The designation "honeycomb" is not intended to limit the structure of the honeycomb core, but includes any structure made of webs (Stegen, connecting plates) with low density and high compressive and shear strength. Suitable honeycomb core structures include hexagonal honeycomb structures, corrugated, circular, rhomboid, or rectangular folded structures, and irregularly formed, seemingly "organic" structures.

[0049] According to the present invention, fiber-reinforced thermoplastic materials are used to form cladding layers of sandwich structures used in the manufacture of automotive components, which offer a num...

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Abstract

The present invention relates to a sandwich component, which comprises a honeycomb core (1) having a plurality of webs (1') and at least one cover layer (2, 3), wherein the honeycomb core (1) is made of a cellulose-based material, in particular paper. The cover layer (2, 3) is formed from a fiber-reinforced semifinished product having a thermoplastic material matrix, wherein the webs (1') of the honeycomb core (1) are partially received into the thermoplastic material matrix of the cover layer (2, 3) at connection points (A) to the cover layer (2, 3) so that the sandwich component is bonded. The invention further relates to production methods for the sandwich component.

Description

technical field [0001] The invention relates to a sandwich structure comprising a cellulose-based honeycomb core and at least one covering layer and a method for its manufacture. Background technique [0002] As part of the lightweight construction strategy in the automotive industry, in particular to reduce fuel costs as well as CO2 emissions, structural parts with sandwich structures are increasingly being used, which, compared to conventional structural parts, due to the core material Low density and significantly low weight, while providing adequate strength values ​​if the cover material is chosen appropriately. Sandwich structures which can withstand high loads are known from the aerospace industry, the honeycomb cores of which usually consist of high-value and therefore expensive phenolic resin-impregnated aramid paper. The cover layer is made of reinforcing fibers of a thermosetting matrix. Such sandwich structures are mainly manufactured by thermocompression or by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/02B32B3/12B32B37/14B60N2/68B29C70/46B29C70/86B32B29/00B32B38/18B60R13/02
CPCB29C70/46B32B38/1866B29K2001/00B32B2317/12B32B37/146B32B37/04B32B37/06B32B2038/166B29L2031/608B32B2309/02B32B2605/003B32B29/00B29C70/028B32B3/12B29C70/22B32B2305/076B32B2305/10B32B37/0038B29K2101/12B60N2/686B29C70/86B32B5/024B32B5/026B32B7/12B32B29/02B32B2250/40B32B2260/021B32B2260/046B32B2262/02B32B2262/023B32B2262/0238B32B2262/0246B32B2262/0253B32B2262/0261B32B2262/0269B32B2262/0276B32B2262/101B32B2262/106B32B2307/50B32B2307/546B32B2451/00B32B2605/00B32B7/05Y10T428/234Y10T156/103Y10T156/1028Y10T156/1034
Inventor B·施坦普S·伊万H·比德尔R·格雷纳T·楚克尔W·内达尔
Owner DAIMLER AG
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