浏览全部资源
扫码关注微信
江苏大学 机械工程学院,江苏 镇江 212013
Received:17 August 2021,
Revised:10 September 2021,
Published:10 March 2022
移动端阅览
范燕萍,沈宗宝,李品等.激光预冲击提高激光动态柔性微胀形成形质量[J].光学精密工程,2022,30(05):584-593.
FAN Yanping,SHEN Zongbao,LI Pin,et al.Improving the forming quality of laser dynamic flexible micro-bulging by laser pre-shocking[J].Optics and Precision Engineering,2022,30(05):584-593.
范燕萍,沈宗宝,李品等.激光预冲击提高激光动态柔性微胀形成形质量[J].光学精密工程,2022,30(05):584-593. DOI: 10.37188/OPE.20223005.0584.
FAN Yanping,SHEN Zongbao,LI Pin,et al.Improving the forming quality of laser dynamic flexible micro-bulging by laser pre-shocking[J].Optics and Precision Engineering,2022,30(05):584-593. DOI: 10.37188/OPE.20223005.0584.
提出了一种激光预冲击辅助激光动态柔性微胀形的新型微成形工艺,以提高微成形件的质量。本工艺利用激光冲击对紫铜箔进行预处理以提高其成形性能,并从胀形深度、表面质量、厚度减薄率、成形对称性、断面形貌等方面研究了微胀形件的成形质量。实验结果表明,胀形深度及表面粗糙度随着激光能量的增加而增加,当激光能量从325 mJ增加至575 mJ时,胀形深度从216.3 μm增至388.7 μm。微胀形件的成形质量随着激光能量的增加而恶化。微胀形件的最大厚度减薄位置位于胀形中心区,局部颈缩则出现在胀形中心区和模具入口区,然而断裂发生在模具入口区。随着激光能量的增加,断裂模式由剪切断裂与韧性断裂的混合模式转变为剪切断裂。激光预冲击有利于提高微胀形件的成形质量,并抑制局部颈缩的产生。
In this study, a novel micro forming process called laser pre-shocking assisted laser dynamic flexible micro-bulging is proposed to improve the quality of micro-formed parts. The laser shocking was used to pretreat copper foil to improve its formability, and the forming quality of micro-bulging parts was examined from the perspective of bulging depth, surface quality, thickness reduction rate, forming symmetry, and cross-section morphology. The experimental results indicated that the bulging depth and surface roughness increased with the increase in laser energy. When the laser energy increased from 325 mJ to 575 mJ, the bulging depth increased from 216.3 μm to 388.7 μm. The forming quality of micro-bulging parts deteriorated with the increase in laser energy. The maximum thickness reduction of the micro-bulging parts and local necking occurred in the central area of the bulging and mold entrance area. However, fracture occurred in the mold entrance area. With the increase in laser energy, the fracture mode changed from a mixed mode of shear and ductile fractures to shear fracture. Laser pre-shocking is beneficial to improve the forming quality of micro-bulging parts and restrain the occurrence of local necking.
CHEN F , CHEN S , DONG X H , et al . Size effects on tensile strength of aluminum-bronze alloy at room temperature [J]. Materials & Design , 2015 , 85 : 778 - 784 . doi: 10.1016/j.matdes.2015.06.169 http://dx.doi.org/10.1016/j.matdes.2015.06.169
WANG X , MA Y J , SHEN Z B , et al . Size effects on formability in microscale laser dynamic forming of copper foil [J]. Journal of Materials Processing Technology , 2015 , 220 : 173 - 183 . doi: 10.1016/j.jmatprotec.2015.01.020 http://dx.doi.org/10.1016/j.jmatprotec.2015.01.020
TANAKA S , BATAEV I , NISHI M , et al . Micropunching large-area metal sheets using underwater shock wave: Experimental study and numerical simulation [J]. International Journal of Machine Tools and Manufacture , 2019 , 147 : 103457 . doi: 10.1016/j.ijmachtools.2019.103457 http://dx.doi.org/10.1016/j.ijmachtools.2019.103457
闫亚东 , 韦明智 , 李奇 , 等 . 激光聚变冲击波速度测量光学系统设计 [J]. 光学 精密工程 , 2021 , 29 ( 2 ): 259 - 266 . doi: 10.37188/OPE.20212902.0259 http://dx.doi.org/10.37188/OPE.20212902.0259
YAN Y D , WEI M ZH , LI Q , et al . Design of optical system for laser fusion shock velocity measurement [J]. Opt. Precision Eng. , 2021 , 29 ( 2 ): 259 - 266 . (in Chinese) . doi: 10.37188/OPE.20212902.0259 http://dx.doi.org/10.37188/OPE.20212902.0259
张文昊 , 刘会霞 , 沈宗宝 , 等 . 多层金属复合板激光冲击柔性微成形实验研究 [J]. 中国激光 , 2017 , 44 ( 7 ): 287 - 294 . doi: 10.3788/CJL201744.0702001 http://dx.doi.org/10.3788/CJL201744.0702001
ZHANG W H , LIU H X , SHEN Z B , et al . Experimental research on laser-shock flexible micro-forming of multilayer-metal composite sheets [J]. Chinese Journal of Lasers , 2017 , 44 ( 7 ): 287 - 294 . (in Chinese) . doi: 10.3788/CJL201744.0702001 http://dx.doi.org/10.3788/CJL201744.0702001
王霄 , 张迪 , 顾春兴 , 等 . 激光冲击软模大面积微弯曲成形方法 [J]. 光学 精密工程 , 2014 , 22 ( 9 ): 2292 - 2298 . doi: 10.3788/OPE.20142209.2292 http://dx.doi.org/10.3788/OPE.20142209.2292
WANG X , ZHANG D , GU CH X , et al . Large area micro bending method by soft punch under laser shock wave based on multi-groove mold [J]. Opt. Precision Eng. , 2014 , 22 ( 9 ): 2292 - 2298 . (in Chinese) . doi: 10.3788/OPE.20142209.2292 http://dx.doi.org/10.3788/OPE.20142209.2292
WANG X , QIU T B , SHEN Z B , et al . Forming properties of a microscale laser dynamic flexible forming technique [J]. Materials and Manufacturing Processes , 2016 , 31 ( 6 ): 745 - 750 . doi: 10.1080/10426914.2014.994749 http://dx.doi.org/10.1080/10426914.2014.994749
SHEN Z B , ZHANG J D , LIU H X , et al . Reducing the rebound effect in micro-scale laser dynamic flexible forming through using plasticine as pressure-carrying medium [J]. International Journal of Machine Tools and Manufacture , 2019 , 141 : 1 - 18 . doi: 10.1016/j.ijmachtools.2019.03.004 http://dx.doi.org/10.1016/j.ijmachtools.2019.03.004
SONG L B , ZHANG X , ZHANG Y L , et al . Shortening post-processing and improving forming quality of holes in laser shock punching with the aid of silicone rubber [J]. Optics & Laser Technology , 2018 , 106 : 442 - 450 . doi: 10.1016/j.optlastec.2018.05.009 http://dx.doi.org/10.1016/j.optlastec.2018.05.009
刘铮 , 郑超 , 宋立彬 , 等 . 多脉冲激光冲击微胀形的成形极限及断裂模式 [J]. 中国激光 , 2019 , 46 ( 3 ): 54 - 61 . doi: 10.3788/CJL201946.0302004 http://dx.doi.org/10.3788/CJL201946.0302004
LIU ZH , ZHENG CH , SONG L B , et al . Forming limit and fracture mode in multiple-pulse laser shock micro-bulging process [J]. Chinese Journal of Lasers , 2019 , 46 ( 3 ): 54 - 61 . (in Chinese) . doi: 10.3788/CJL201946.0302004 http://dx.doi.org/10.3788/CJL201946.0302004
张青来 , 彭新成 , 韩伟东 , 等 . TA1钛薄板激光冲击成形实验及数值模拟 [J]. 中国有色金属学报 , 2019 , 29 ( 2 ): 350 - 360 .
ZHANG Q L , PENG X CH , HAN W D , et al . Experiment and numerical simulation on laser shock forming of TA1 pure titanium sheet [J]. The Chinese Journal of Nonferrous Metals , 2019 , 29 ( 2 ): 350 - 360 . (in Chinese)
LU J Z , LU H F , XU X , et al . High-performance integrated additive manufacturing with laser shock peening-induced microstructural evolution and improvement in mechanical properties of Ti 6 Al 4 V alloy components [J]. International Journal of Machine Tools and Manufacture , 2020 , 148 : 103475 . doi: 10.1016/j.ijmachtools.2019.103475 http://dx.doi.org/10.1016/j.ijmachtools.2019.103475
樊玉杰 , 郭二彬 , 戴毅斌 , 等 . 激光冲击强化高速钢W 9 Cr 3 Mo 4 V响应 [J]. 光学 精密工程 , 2016 , 24 ( 10 s): 94 - 102 . doi: 10.1088/1757-899x/230/1/012010 http://dx.doi.org/10.1088/1757-899x/230/1/012010
FAN Y J , GUO E B , DAI Y B , et al . Response of laser shock on high speed steel W 9 Cr 3 Mo 4 V [J]. Opt. Precision Eng. , 2016 , 24 ( 10 s): 94 - 102 . (in Chinese) . doi: 10.1088/1757-899x/230/1/012010 http://dx.doi.org/10.1088/1757-899x/230/1/012010
孟宪凯 , 周建忠 , 谭文胜 , 等 . 液氮温度下激光冲击波对Al-Cu合金的强化机理 [J]. 光学 精密工程 , 2016 , 24 ( 10 s): 245 - 251 .
MENG X K , ZHOU J ZH , TAN W SH , et al . Reening mechanism of laser shock wave in Al-Cu alloy at liquid nitrogen temperature [J]. Opt. Precision Eng. , 2016 , 24 ( 10 s): 245 - 251 . (in Chinese)
ZHANG J D , SHEN Z B , LIN Y Y , et al . Improving the forming quality of laser dynamic flexible micropunching by laser pre-shocking [J]. Materials , 2020 , 13 ( 17 ): 3667 . doi: 10.3390/ma13173667 http://dx.doi.org/10.3390/ma13173667
ZHANG H P , CAI Z Y , WAN Z D , et al . Microstructure and mechanical properties of laser shock peened 38CrSi steel [J]. Materials Science and Engineering: A, 2020 , 788: 139486 . doi: 10.1016/j.msea.2020.139486 http://dx.doi.org/10.1016/j.msea.2020.139486
CHAN W L , FU M W . Experimental studies and numerical modeling of the specimen and grain size effects on the flow stress of sheet metal in microforming [J]. Materials Science and Engineering: A, 2011 , 528 ( 25/26 ): 7674 - 7683 . doi: 10.1016/j.msea.2011.06.076 http://dx.doi.org/10.1016/j.msea.2011.06.076
COAKLEY J , HIGGINBOTHAM A , MCGON-EGLE D , et al . Femtosecond quantification of void evolution during rapid material failure [J]. Science Advances , 2020 , 6 ( 51 ): eabb4434 . doi: 10.1126/sciadv.abb4434 http://dx.doi.org/10.1126/sciadv.abb4434
0
Views
583
下载量
1
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution