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Materials 2016, 9(7), 571; doi:10.3390/ma9070571

An Experimental Study on Micro Clinching of Metal Foils with Cutting by Laser Shock Forming

School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
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Author to whom correspondence should be addressed.
Academic Editor: Martin Byung-Guk Jun
Received: 13 June 2016 / Revised: 7 July 2016 / Accepted: 8 July 2016 / Published: 13 July 2016
(This article belongs to the Special Issue Ultrafast Laser-Based Manufacturing)
View Full-Text   |   Download PDF [8953 KB, uploaded 13 July 2016]   |  

Abstract

This paper describes a novel technique for joining similar and dissimilar metal foils, namely micro clinching with cutting by laser shock forming. A series of experiments were conducted to study the deformation behavior of single layer material, during which many important process parameters were determined. The process window of the 1060 pure aluminum foils and annealed copper foils produced by micro clinching with cutting was analyzed. Moreover, similar material combination (annealed copper foils) and dissimilar material combination (1060 pure aluminum foils and 304 stainless steel foils) were successfully achieved. The effect of laser energy on the interlock and minimum thickness of upper foils was investigated. In addition, the mechanical strength of different material combinations joined by micro clinching with cutting was measured in single lap shearing tests. According to the achieved results, this novel technique is more suitable for material combinations where the upper foil is thicker than lower foil. With the increase of laser energy, the interlock increased while the minimum thickness of upper foil decreased gradually. The shear strength of 1060 pure aluminum foils and 304 stainless steel foils combination was three times as large as that of 1060 pure aluminum foils and annealed copper foils combination. View Full-Text
Keywords: micro joining; clinching with cutting; metal foils; laser shock forming; process parameters micro joining; clinching with cutting; metal foils; laser shock forming; process parameters
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MDPI and ACS Style

Wang, X.; Li, C.; Ma, Y.; Shen, Z.; Sun, X.; Sha, C.; Gao, S.; Li, L.; Liu, H. An Experimental Study on Micro Clinching of Metal Foils with Cutting by Laser Shock Forming. Materials 2016, 9, 571.

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