PMID- 34607287
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20211129
LR  - 20211129
IS  - 1874-9968 (Electronic)
IS  - 0041-624X (Linking)
VI  - 119
DP  - 2022 Feb
TI  - Observation on the behavior of ultrasonic micro-hammer and its effects on the 
      deep drawing process: Numerical simulation and experimental study.
PG  - 106566
LID - S0041-624X(21)00190-6 [pii]
LID - 10.1016/j.ultras.2021.106566 [doi]
AB  - Combining ultrasonic vibration (UV) with metal forming processes is investigated 
      as a novel technology that has been able to reduce the forming force and enhance 
      this process. This paper attempts to elucidate the effect of Ultrasonically 
      Assisted Deep Drawing (UADD) process on the forming force and thickness 
      distribution of the formed sample. Therefore, a Finite Element (FE) model is 
      developed to simulate this process and further investigate the ultrasonic 
      micro-hammer mechanism in UADD process. Experimental tests were conducted to 
      validate the established numerical model. Accordingly, a robust technological 
      equipment was designed and fabricated, so that by application of ultrasonic 
      vibration, the drawing die will be stimulated in longitudinal mode at the 
      frequency of 20 kHz and thus, remain in the resonant condition. A reasonable 
      congruence was observed when the forming force results and cup configurations 
      from experimental tests and numerical solutions were compared. Therefore, the 
      numerical model was used to evaluate the deformation behavior of the sheet at 
      different amplitudes and frequencies. The results confirmed continuous vibration 
      and ultrasonic micro-hammer conditions exhibit different behavior during the UADD 
      process, and the latter occurs when the ultrasonic die separates from the 
      workpiece surface. Although the UV application under micro-hammer condition 
      significantly reduces the forming force, it has a destructive effect on the 
      thickness distribution of the sheet and causes severe thinning. The current study 
      provides a better understanding of the ultrasonic micro-hammer and its effects on 
      the sheet metal forming process, which is the fundamental step in exploring this 
      process.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Malekipour, Ehsan
AU  - Malekipour E
AD  - Mechanical Engineering, Tafresh University, Tafresh, 39518-79611, Iran. 
      Electronic address: malekipour.mech@tafreshu.ac.ir.
FAU - Sharifi, Ebrahim
AU  - Sharifi E
AD  - Mechanical Engineering, Tafresh University, Tafresh, 39518-79611, Iran. 
      Electronic address: sharifi@tafreshu.ac.ir.
FAU - Shahbazi Majd, Nafiseh
AU  - Shahbazi Majd N
AD  - Civil and Environmental Engineering, Syracuse University, Syracuse, 13244, NY, 
      United States. Electronic address: nashahba@syr.edu.
FAU - Heidary, Hossein
AU  - Heidary H
AD  - Mechanical Engineering, Tafresh University, Tafresh, 39518-79611, Iran. 
      Electronic address: heidary@tafreshu.ac.ir.
LA  - eng
PT  - Journal Article
DEP - 20210831
PL  - Netherlands
TA  - Ultrasonics
JT  - Ultrasonics
JID - 0050452
SB  - IM
OTO - NOTNLM
OT  - Deep drawing forming
OT  - Finite element simulation
OT  - Fractography
OT  - Ultrasonic micro-hammer
OT  - Ultrasonic vibration
EDAT- 2021/10/05 06:00
MHDA- 2021/10/05 06:01
CRDT- 2021/10/04 20:30
PHST- 2020/10/26 00:00 [received]
PHST- 2021/06/21 00:00 [revised]
PHST- 2021/08/23 00:00 [accepted]
PHST- 2021/10/05 06:00 [pubmed]
PHST- 2021/10/05 06:01 [medline]
PHST- 2021/10/04 20:30 [entrez]
AID - S0041-624X(21)00190-6 [pii]
AID - 10.1016/j.ultras.2021.106566 [doi]
PST - ppublish
SO  - Ultrasonics. 2022 Feb;119:106566. doi: 10.1016/j.ultras.2021.106566. Epub 2021 
      Aug 31.