Thermoplastic micro-forming of bulk metallic glasses: a review

N Li, W Chen, L Liu - Jom, 2016 - Springer
Bulk metallic glasses are a fascinating class of metallic alloys with an isotropic amorphous
structure that is rapidly quenched from liquid melts. The absence of a crystalline micro …

A review on the mechanisms of ultrasonic wedge-wedge bonding

Y Long, J Twiefel, J Wallaschek - Journal of materials processing …, 2017 - Elsevier
Although ultrasonic (US) wire bonding has been widely applied in microelectronic
packaging industry for decades, the bonding mechanisms are not yet well understood. This …

Bulk forming of sheet metal

M Merklein, JM Allwood, BA Behrens, A Brosius… - CIRP annals, 2012 - Elsevier
Ever increasing demands on functional integration of high strength light weight products
leads to the development of a new class of manufacturing processes. The application of bulk …

Acoustic softening and residual hardening in aluminum: Modeling and experiments

Z Yao, GY Kim, Z Wang, LA Faidley, Q Zou… - International Journal of …, 2012 - Elsevier
It is known that high-frequency vibration affects metal plasticity during metal forming and
bonding operations. Metal plasticity is significantly affected by the acoustic field leading to …

An energy based modeling for the acoustic softening effect on the Hall-Petch behavior of pure titanium in ultrasonic vibration assisted micro-tension

X Wang, C Wang, Y Liu, C Liu, Z Wang, B Guo… - International Journal of …, 2021 - Elsevier
The acoustic softening effect in metals during plastic deformation has been widely
investigated in the past decades. However, the mechanism of such an acoustic plasticity …

Effects of superimposed high-frequency vibration on deformation of aluminum in micro/meso-scale upsetting

Z Yao, GY Kim, LA Faidley, Q Zou, D Mei… - Journal of Materials …, 2012 - Elsevier
Micro/meso forming is an economically competitive process for the fabrication of miniature
metallic parts. However, the size effects observed when scaling down the process leads to …

Modelling the effects of superimposed ultrasonic vibrations on tension and compression tests of aluminium

Y Daud, M Lucas, Z Huang - Journal of Materials Processing Technology, 2007 - Elsevier
This paper presents a study of the effects of superimposing ultrasonic vibrations on the lower
platen in tension and compression tests of aluminium. By measuring the oscillating force …

The effect of tensile deformation by in situ ultrasonic treatment on the microstructure of low-carbon steel

RK Dutta, RH Petrov, R Delhez, MJM Hermans… - Acta Materialia, 2013 - Elsevier
The softening effect in metals due to ultrasonic vibration is used in many industrial
applications. The existing understanding of such an acoustoplastic effect is one in which the …

A novel pneumatic actuator based on high-frequency longitudinal vibration friction reduction

P Qian, C Pu, L Liu, P Lv, LMR Páez - Sensors and Actuators A: Physical, 2022 - Elsevier
Seals are an indispensable component of ordinary piston type pneumatic cylinders, but their
presence inevitably introduces friction. Given that the friction is time-varying, uncertain and …

Thermomechanical analyses of ultrasonic welding process using thermal and acoustic softening effects

A Siddiq, E Ghassemieh - Mechanics of Materials, 2008 - Elsevier
Ultrasonic welding process is a rapid manufacturing process used to weld thin layers of
metal at low temperatures and low energy consumption. Experimental results have shown …