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Title: Ultrasonic rivet joining of dissimilar materials

Abstract

A method for joining dissimilar materials is provided. The method includes a solid-state joining process in which a rivet is plunged into a predrilled hole in a top workpiece. When the rivet contacts the bottom workpiece, ultrasonic vibration by oscillatory motion of a sonotrode, such as horizontal, vertical, or rotational motion, creates frictional heat at the interface between the rivet and the lower workpiece. With the aid of frictional heat and axial compression, metallurgical bonding is achieved at the interface between the rivet and the bottom sheet, while being below the melting temperature of the bottom workpiece. The sonotrode is retracted while the rivet remains.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892631
Patent Number(s):
11253908
Application Number:
16/858,770
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21J - FORGING
B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21K - MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/27/2020
Country of Publication:
United States
Language:
English

Citation Formats

Lim, Yong Chae, Feng, Zhili, Chen, Jian, Sun, Xin, and Davies, Richard W. Ultrasonic rivet joining of dissimilar materials. United States: N. p., 2022. Web.
Lim, Yong Chae, Feng, Zhili, Chen, Jian, Sun, Xin, & Davies, Richard W. Ultrasonic rivet joining of dissimilar materials. United States.
Lim, Yong Chae, Feng, Zhili, Chen, Jian, Sun, Xin, and Davies, Richard W. Tue . "Ultrasonic rivet joining of dissimilar materials". United States. https://www.osti.gov/servlets/purl/1892631.
@article{osti_1892631,
title = {Ultrasonic rivet joining of dissimilar materials},
author = {Lim, Yong Chae and Feng, Zhili and Chen, Jian and Sun, Xin and Davies, Richard W.},
abstractNote = {A method for joining dissimilar materials is provided. The method includes a solid-state joining process in which a rivet is plunged into a predrilled hole in a top workpiece. When the rivet contacts the bottom workpiece, ultrasonic vibration by oscillatory motion of a sonotrode, such as horizontal, vertical, or rotational motion, creates frictional heat at the interface between the rivet and the lower workpiece. With the aid of frictional heat and axial compression, metallurgical bonding is achieved at the interface between the rivet and the bottom sheet, while being below the melting temperature of the bottom workpiece. The sonotrode is retracted while the rivet remains.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {2}
}

Works referenced in this record:

Joining apparatus and method
patent, April 2018


Ultrasonic spot welding of dissimilar materials: characterization of welded joints and parametric optimization
journal, February 2016


Bonding Objects Together
patent-application, April 2018


Method of riveting involving ultrasonic pulses
patent, January 2019


Friction Welding Joint of a Plurality of Two-Dimensional Components Position on Top of Each Other
patent-application, December 2009


Method for unreleasable fastening
patent, December 2013