Unlock instant, AI-driven research and patent intelligence for your innovation.

Method Of Fabricating Roll-Bonded Expanded Load-Bearing Aluminum Laminate Structural Elements For Vehicle

a technology of aluminum laminate and structural elements, which is applied in the direction of manufacturing tools, transportation and packaging, non-electric welding apparatus, etc., can solve the problems of affecting the overall strength, crashworthiness and stiffness of the resulting sandwich structure, and reducing the overall thickness of the sandwich

Inactive Publication Date: 2014-11-13
FORD GLOBAL TECH LLC
View PDF18 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a way to make a strong connection between two pieces of metal by creating the same shaped regions where they are bonded together. The technical effect is a more secure and reliable connection between the two metal pieces.

Problems solved by technology

Although sandwich structures can be formed into desired part configurations, the forming pressures can collapse the cores and dramatically reduce the overall thickness of the sandwich.
Thus, the overall strength, crashworthiness and stiffness of the resulting sandwich structure may be adversely affected by the required forming operations.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method Of Fabricating Roll-Bonded Expanded Load-Bearing Aluminum Laminate Structural Elements For Vehicle
  • Method Of Fabricating Roll-Bonded Expanded Load-Bearing Aluminum Laminate Structural Elements For Vehicle
  • Method Of Fabricating Roll-Bonded Expanded Load-Bearing Aluminum Laminate Structural Elements For Vehicle

Examples

Experimental program
Comparison scheme
Effect test

examples

[0068]Referring to FIG. 16, to evaluate the relative stiffness and strength of the finished laminate with respect to alternative aluminum and steel structures, a finished test laminate was used to construct crush-can 1000 having a structure similar to that shown in FIGS. 9A-9C constructed with two sheets of 0.625 mm thick aluminum alloy 5754 as the laminate constituents 902 and 904 bonded at a plurality of spaced apart circular bonding areas, using the method previously described. Similarly-structured cans were fabricated from 0.8 mm thick low carbon mild steel and 1.8 mm thick aluminum alloy 5754.

[0069]The diameters of the circular bonding regions at non-bonding surfaces of the constituent sheets (i.e., at surfaces of the sheets opposite the bonding surfaces 902a and 904a) were about 10.125 mm. The diameters of the circular bonding regions at bonding surfaces of the constituent sheets were about 8 mm. The centers of the circular bonding regions were spaced about 13.6 mm from each o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
shapeaaaaaaaaaa
dimensionsaaaaaaaaaa
weightaaaaaaaaaa
Login to View More

Abstract

A laminate includes two pieces of metallic material bonded together at a plurality of regularly spaced-apart bonded regions. The laminate is formable during processing into a variety of vehicle structural elements.

Description

BACKGROUND OF THE INVENTION[0001]There are ongoing and increasing demands for weight reduction in motor vehicles. Aluminum being significantly lighter than steel, many manufacturers are exploring the design of body-in-white (BIW) structures formed from aluminum. The stiffness required for a given application often defines the minimum gauges usable for the aluminum sheet. Sandwich aluminum structures have the potential to reduce vehicle weight drastically without compromising durability, safety and NVH performances. Conventional sandwich aluminum structures may be fabricated by stacking and joining several thin aluminum sheets where the outer layers are plain and inner layers are formed by creating plurality of cells using alternating front and rear projections. Due to the empty space provided by the core cell structure, the resulting sandwich aluminum has significantly lower density than a solid sheet metal of same overall thickness, resulting in additional weight savings. Although ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): B32B7/04
CPCB32B7/045B62D29/008B62D25/105B21D47/01B21D47/04Y10T428/12347B32B7/05B23K20/023B23K20/26
Inventor FARUQUE, MOHAMMED OMARPLINE, KEVINSUNDARARAJAN, SRINIVASANCHENG, JAMES CHIHZALUZEC, MATT JOHNWU, FUBANG
Owner FORD GLOBAL TECH LLC