Top

The International Journal of Advanced Manufacturing Technology

Published in:

19-04-2021 | ORIGINAL ARTICLE

Classification and variation of fracture modes in laser shock hole-clinching

Authors: Chao Zheng, Shushuai Liu, Yunhu Zhu, Yiliang Zhang, Guoqun Zhao, Zhong Ji

Published in: The International Journal of Advanced Manufacturing Technology | Issue 9-10/2021

Activate our intelligent search to find suitable subject content or patents.

search-config

AI-assisted search

Off

Abstract

Laser shock hole-clinching is a high–strain rate mechanical joining process in which the metal foils are joined together based on plastic deformation generated by a laser-induced shock wave. In the process, fracture is a typical defect and seriously influences the clinching quality and production efficiency of joints. However, the classification and variation of fracture modes in laser shock hole-clinching are of less concern. In this study, the fracture mode of Cu-Fe joints in laser shock hole-clinching was experimentally investigated. Both optical microscopy and scanning electron microscopy were adopted to analyze the fracture surface morphology of clinched joints. The influence of laser power density, laser spot diameter, the initial grain size and thickness of metal foil, and spacer height on the fracture mode of joints was evaluated. It is revealed that the temperature increase caused by high–strain rate plastic deformation has no impact on the fracture behavior of the joining partners. Fracture always occurs on joining partner I, and it can be divided into four modes, including bottom surface fracture, bottom corner fracture, neck fracture, and mixed fracture. It is found that fracture on the bottom surface is seldom seen but mixed fracture accounts for most of the cracked specimens. Neck tensile fracture rarely appears alone, and it usually exists accompanied by fracture on the bottom corner. The fracture mode varies from a tensile fracture mode on the bottom corner to a mixed fracture mode and then to a shear fracture mode on the neck with the enhancement of laser power density. In addition, the initial grain size of joining partner I has a significant impact on the fracture mode of clinched joints. The fracture mode varies from bottom corner fracture to mixed fracture in relation to the change of mechanical properties of metal foil with an enlarged grain size. However, the mixed fracture mode always appears with the enlargement of both laser spot diameter and spacer height.

previous article A rigid-flexible coupling pretravel error model for a touch-trigger probe in an on-machine inspection system

next article Simulated and experimental analysis of laser beam energy profiles to improve efficiency in wire-fed laser deposition

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

inform now

Tanaka S, Bataev I, Nishi M, Balagansky I, Hokamoto K (2019) Micropunching large-area metal sheets using underwater shock wave: experimental study and numerical simulation. Int J Mach Tools Manuf 147:103457. https://doi.org/10.1016/j.ijmachtools.2019.103457CrossRef

Choi DC, Kim HS (2020) Performance evaluation of laser shock micro-patterning process on aluminum surface with various process parameters and loading schemes. Opt Lasers Eng 124:105799. https://doi.org/10.1016/j.optlaseng.2019.105799CrossRef

Ji Z, Liu R, Wang DG, Zhang MH, Su QC (2008) A micro clinching method and its device for joining ultrathin sheets with pulsed laser. Chinese Patent ZL200810014018.1.

Veenaas S, Vollertsen F (2015) Forming behavior during joining by laser induced shock waves. Key Eng Mater 651-653:1451–1456. https://doi.org/10.4028/www.scientific.net/KEM.651-653.1451CrossRef

Wang X, Li C, Ma YJ, Shen ZB, Sun XQ, Sha CF, Gao S, Li LY, Liu HX (2016) An experimental study on micro clinching of metal foils with cutting by laser shock forming. Materials 9:571. https://doi.org/10.3390/ma9070571CrossRef

Wang X, Li XD, Li C, Shen ZB, Ma YJ, Liu HX (2018) Laser shock micro clinching of Al/Cu. J Mater Process Technol 258:200–210. https://doi.org/10.1016/j.jmatprotec.2018.04.005CrossRef

Wang XY, Ji Z, Wang JF, You SX, Zheng C, Liu R (2018) An experimental and numerical study on laser shock clinching for joining copper foil and perforated stainless steel sheet. J Mater Process Technol 258:155–164. https://doi.org/10.1016/j.jmatprotec.2018.03.025CrossRef

Veenaas S, Vollertsen F (2014) High speed joining process by laser shock forming for the micro range. 6th International Conference on High Speed Forming, Daejeon, Korea: 97-105. https://doi.org/10.17877/DE290R-854

Veenaas S, Wielage H, Vollertsen F (2014) Joining by laser shock forming: realization and acting pressures. Prod Eng Res Devel 8:283–290. https://doi.org/10.1007/s11740-013-0521-zCrossRef

10.

Wang XY, Ji Z, Liu R, Zheng C (2018) Making interlock by laser shock forming. Opt Laser Technol 107:331–336. https://doi.org/10.1016/j.optlastec.2018.06.011CrossRef

11.

You SX, Wang XY, Ji Z, Zheng C, Zhang GF, Liu R (2019) Making line undercut structure by incremental laser shock forming. Int J Precis Eng Manuf 20:1289–1296. https://doi.org/10.1007/s12541-019-00141-wCrossRef

12.

Li XD, Wang X, Shen ZB, Ma YJ, Liu HX (2019) An experimental study on micro-shear clinching of metal foils by laser shock. Materials 12:1422. https://doi.org/10.3390/ma12091422CrossRef

13.

Li J, Gao H, Cheng GJ (2010) Forming limit and fracture mode of microscale laser dynamic forming. J Manuf Sci Eng 132:061005. https://doi.org/10.1115/1.4002546CrossRef

14.

Wielage H, Vollertsen F (2011) Analysis of fracture behavior in plastic shaping by laser shock forming, 10th International Conference on Technology of Plasticity. Aachen, Germany, pp 1–4

15.

Liu Z, Zheng C, Song LB, Ji Z (2019) Forming limit and fracture mode in multiple-pulse laser shock micro-bulging process. Chinese J Lasers 46:0302004. https://doi.org/10.3788/CJL201946.0302004CrossRef

16.

Wang X, Sun K, Ma YJ, Shen ZB, Liu F, Liu HX (2019) Experimental investigation on laser shock micro hydraulic bulging of copper foil. Opt Laser Technol 115:390–397. https://doi.org/10.1016/j.optlastec.2019.02.048CrossRef

17.

Zhang QL, Wang R, Hong YX, Wu TD, Qian Y, Zhang YK (2014) Study on laser shock forming and fracture behavior of metal sheet. Chinese J Lasers 41:0403010. https://doi.org/10.3788/CJL201441.0403010CrossRef

18.

Jiang YF, Sha DL, Jiang WF, He YZ, Jin H (2019) A study on failure mechanisms and formability of aluminum alloy sheets under laser shock forming. Int J Adv Manuf Technol 101:451–460. https://doi.org/10.1007/s00170-018-2765-4CrossRef

19.

Zheng C, Ji Z, Song LB, Fu J, Zhu YH, Zhang JH (2015) Variation of fracture mode in micro-scale laser shock punching. Opt Laser Technol 72:25–32. https://doi.org/10.1016/j.optlastec.2015.03.009CrossRef

20.

Shen ZB, Liu HX, Wang X, Wang CT (2016) Improving the forming capability of laser dynamic forming by using rubber as a forming medium. Appl Surf Sci 369:288–298. https://doi.org/10.1016/j.apsusc.2016.02.063CrossRef

21.

Shen ZB, Zhang JD, Li P, Liu HX, Yan Z, Ma YJ, Wang X (2019) Deformation and fracture behaviors of copper sheet in laser dynamic flexible forming. J Manuf Process 37:82–90. https://doi.org/10.1016/j.jmapro.2018.11.015CrossRef

22.

Li M, Zhang XQ, Li SZ, Wang HT, Chen B, Tong JY, Fang GW, Wei W (2019) Effect of the pressure on fracture behaviors of metal sheet punched by laser-induced shock wave. Int J Adv Manuf Technol 102:497–505. https://doi.org/10.1007/s00170-018-3197-xCrossRef

23.

Boakye-Yiadom S, Bassim N (2018) Microstructural evolution of adiabatic shear bands in pure copper during impact at high strain rates. Mater Sci Eng A 711:182–194. https://doi.org/10.1016/j.msea.2017.11.027CrossRef

24.

Tiamiyu AA, Odeshi AG, Szpunar JA (2018) Multiple strengthening sources and adiabatic shear banding during high strain-rate deformation of AISI 321 austenitic stainless steel: effects of grain size and strain rate. Mater Sci Eng A 711:233–249. https://doi.org/10.1016/j.msea.2017.11.045CrossRef

25.

Bobbili R, Madhu V, Gogia AK (2016) Tensile behaviour of aluminium 7017 alloy at various temperatures and strain rates. J Mater Res Technol 5:190–197. https://doi.org/10.1016/j.jmrt.2015.12.002CrossRef

26.

Johnson GR, Cook WH (1983) A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures, 7th International Symposium on Ballistics. Hague, Netherlands, pp 541–547

27.

Fabbro R, Fournier J, Ballard P, Devaux D, Virmont J (1990) Physical study of laser-produced plasma in confined geometry. J Appl Phys 68:775–784. https://doi.org/10.1063/1.346783CrossRef

28.

Ryazanov AI, Pavlov SA, Kiritani M (2003) Effective temperature rise during propagation of shock wave and high-speed deformation in metals. Mater Sci Eng A 350:245–250. https://doi.org/10.1016/S0921-5093(02)00711-6CrossRef

29.

Wielage H, Vollertsen F (2011) Classification of laser shock forming within the field of high speed forming processes. J Mater Process Technol 211:953–957. https://doi.org/10.1016/j.jmatprotec.2010.07.012CrossRef

30.

Ye YX, Xuan T, Lian ZC, Feng YY, Hua XJ (2015) Investigation of the crater-like microdefects induced by laser shock processing with aluminum foil as absorbent layer. Appl Surf Sci 339:75–84. https://doi.org/10.1016/j.apsusc.2015.02.111CrossRef

31.

Lambiase F, Di Ilio A (2016) Damage analysis in mechanical clinching: experimental and numerical study. J Mater Process Technol 230:109–120. https://doi.org/10.1016/j.jmatprotec.2015.11.013CrossRef

32.

Lambiase F, Di Ilio A, Paoletti A (2015) Joining aluminium alloys with reduced ductility by mechanical clinching. Int J Adv Manuf Technol 77:1295–1304. https://doi.org/10.1007/s00170-014-6556-2CrossRef

33.

Zheng C, Sun S, Ji Z, Wang W, Liu J (2010) Numerical simulation and experimentation of micro scale laser bulge forming. Int J Mach Tools Manuf 50:1048–1056. https://doi.org/10.1016/j.ijmachtools.2010.08.012CrossRef

34.

Zheng C, Zhang X, Liu Z, Ji Z, Yu X, Song LB (2018) Investigation on initial grain size and laser power density effects in laser shock bulging of copper foil. Int J Adv Manuf Technol 96:1483–1496. https://doi.org/10.1007/s00170-018-1722-6CrossRef

Title: Classification and variation of fracture modes in laser shock hole-clinching
Authors: Chao Zheng
Shushuai Liu
Yunhu Zhu
Yiliang Zhang
Guoqun Zhao
Zhong Ji
Publication date: 19-04-2021
Publisher: Springer London
Published in: The International Journal of Advanced Manufacturing Technology / Issue 9-10/2021
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI: https://doi.org/10.1007/s00170-021-07088-1

Springer Professional

Abstract

Please log in to get access to your license.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Other articles of this Issue 9-10/2021

Numerical modelling and experimental study on pulsed laser surface texturing on cemented carbides

Investigation of direct metal laser sintering downskin parameters’ sagging effect on microchannels

Analytical modeling and experimental study of laser powder-fed additive manufacturing on curved substrates

A review of G code, STEP, STEP-NC, and open architecture control technologies based embedded CNC systems

Grinding characteristics of CVD diamond grits in single grit grinding of SiC ceramics

Kinematic modeling of surface topography ground by an electroplated diamond wheel

Premium Partners