Check patentability & draft patents in minutes with Patsnap Eureka AI!

Artificial aluminum layers for fastening magnesium castings

An aluminum layer, artificial technology, applied in the direction of threaded fasteners, connecting components, layered products, etc., can solve the problems of limited use of mechanical properties, coating damage, etc.

Active Publication Date: 2021-06-04
MAGNESIUM PROD OF AMERICA INC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, when magnesium castings are pre-coated (e.g., using electrocoating or powder coating), the coating is damaged when the button is formed on the mold
Thus, although lightweight magnesium alloy die castings offer potential for weight reduction in automotive technology, the mechanical properties of magnesium alloys limit their use in SPR processes.

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
  • Artificial aluminum layers for fastening magnesium castings
  • Artificial aluminum layers for fastening magnesium castings
  • Artificial aluminum layers for fastening magnesium castings

Examples

Experimental program
Comparison scheme
Effect test

example

[0025] Figure 4 is a cross-sectional view of an exemplary embodiment of an SPR joint comprising a top steel layer, a magnesium-based intermediate layer, and a faux aluminum bottom layer. Initially, a top steel layer, a magnesium-based middle layer, and a faux aluminum bottom layer are sandwiched together. Next, a half-tubular rivet is driven into each of the three layers using a punch and die in a stamping tool. according to Figure 4 , the steel SPR rivets fully penetrate the top and middle layers, and the mold shape makes the rivets splay out inside the faux aluminum bottom layer to form a mechanical interlock in the faux aluminum bottom layer. Rivets can be set flush with the top layer. The mold shape is such that buttons are formed on the bottom side of the faux aluminum base layer. The steel SPR rivets only partially penetrate the faux aluminum substratum. In this arrangement, the top layer is bonded to the magnesium-based intermediate layer without the use of adhes...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

A self-piercing rivet (SPR) joint includes a top layer including at least one steel material or at least one aluminum material, a middle layer including at least one magnesium material, and a bottom artificial aluminum layer including at least one aluminum material.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to US Patent Application Serial No. 16 / 116,513, filed August 29, 2018, the entire disclosure of which is incorporated herein by reference. Background technique [0003] This application relates to artificial aluminum layers. More specifically, the present application relates to artificial aluminum layers for fastening magnesium castings in self-piercing riveting (SPR) applications. [0004] Self-piercing riveting (SPR) is a high-speed mechanical fastening process used to join two or more sheets of material without pre-drilling or punching holes. Typically, the SPR process is performed by driving a semi-tubular rivet through the top layer of material and upsetting the rivet in the underlying layer (without piercing the underlying layer completely) to form a durable mechanical joint. Attempts have been made to fasten an aluminum alloy top layer or a steel top layer to ...

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
IPC IPC(8): F16B19/06B21D39/00B21J15/02
CPCB21J15/025B32B7/12B32B15/017C22C21/08C22C23/02C22C38/02C22C38/04F16B5/04F16B19/086F16B11/006C22C21/06B32B15/013C22C21/00C22C23/00F16B19/1027F16B5/0096
Inventor G·G·王J·P·魏勒
Owner MAGNESIUM PROD OF AMERICA INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com