Mechanical Analysis of Ultrasonic Bonding for Rapid Prototyping  

Oleh:

Yuan, Gao ; Doumanidis, Charalabos

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 124 no. 2 (May 2002), page 426-434.
Topik: prototyping; mechanical analysis; ultrasonic bonding; prototyping

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Ultrasonic bonding of thin foils has been recently introduced to rapid prototyping of complex - shaped and / or internally structured layered parts. This article provides the mechanical analysis of an elementary ultrasonic spot welding process of a metal foil on a previously deposited substrate. A 2 - D, quasi - static / dynamic, elasto - plastic numerical model of the stress / strain field is developed by finite element analysis. Its frictional boundary conditions at the foil / substrate interface are described via a simpler plain stress, static analytical formulation, and identified experimentally by strain measurements on the substrate surface, adjacently to the ultrasonic probe. The calibrated computational simulation is validated in the laboratory and applied in studying the elastic stress concentrations, plastic deformation initiation and propagation patterns, the slippage at the interface surface and the dynamic effects of ultrasonic loading on the bonding process. This mechanical model is suitable for analysis of multi - joint ultrasonic rapid prototyping and its applications in fabrication of multi - material, functional internal structures with embedded components.

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