<strong>TC4</strong>金字塔点阵结构的激光焊接及其平压性能

doi:10.11901/1005.3093.2020.286

材料研究学报

2021, Vol. 35

Issue (8): 623-631 DOI: 10.11901/1005.3093.2020.286

研究论文

本期目录 | 过刊浏览

TC4金字塔点阵结构的激光焊接及其平压性能

刘玮, 王辉, 褚兴荣(

), 王延刚, 高军

山东大学(威海)机电与信息工程学院威海 264209

Manufacturing Process and Compression Performance of TC4 Pyramid Lattice Structure with Laser Welding

LIU Wei, WANG Hui, CHU Xingrong(

), WANG Yangang, GAO Jun

School of Mechatronics and Information Engineering, Shandong University (Weihai), Weihai 264209, China

引用本文:

刘玮, 王辉, 褚兴荣, 王延刚, 高军. TC4金字塔点阵结构的激光焊接及其平压性能[J]. 材料研究学报, 2021, 35(8): 623-631.
Wei LIU, Hui WANG, Xingrong CHU, Yangang WANG, Jun GAO. Manufacturing Process and Compression Performance of TC4 Pyramid Lattice Structure with Laser Welding[J]. Chinese Journal of Materials Research, 2021, 35(8): 623-631.

全文: PDF(24093 KB) HTML

摘要:

基于用高温节点下压法成形的TC4钛合金芯体，用面芯激光焊接制备了钛合金金字塔点阵结构。用响应曲面法优化激光焊接参数，实现了点阵结构面芯连接，分析焊接节点的微观组织并进行了点阵结构平压实验。结果表明：激光功率对焊接效果有显著的影响。点阵结构面芯激光焊接的优化工艺参数为：上面板的焊接功率为1.4 kW，下面板的焊接功率为1.2 kW，离焦量为30 mm，停留时间为1 s。在激光焊接热影响区发生了马氏体转变，分布着大量的针状马氏体；熔焊区的组织为粗大β相+针状α相。在焊接节点处，从熔焊区到母材的显微硬度随着马氏体相的减少而降低。根据平压实验结果分析了金字塔点阵结构变形和破坏的规律，桁架杆失效断裂发生在热影响区。用激光焊接制备的TC4钛合金点阵结构，其平压强度为3.09 MPa，平压模量为153.25 MPa。

关键词 ：金属材料, 金字塔点阵结构, 激光焊接, 微观组织, 平压性能

Abstract：

Based on the TC4 Ti-alloy core formed by alternating pin-press method at high-temperature, the laser welding connection process of the panel and the core was investigated in order to manufacture the pyramid lattice structure of Ti-alloy. The laser welding parameters were optimized by response surface method, the plane and core of lattice structure were connected, the microstructures of welding joints were examined, and the compression performance of lattice structure was investigated. The results show that the laser power has the most significant influence on the welding result. The optimized parameters of laser welding of lattice structure face core were as follows: welding power of upper panel was 1.4 kW, welding power of lower panel was 1.2 kW, defocusing quantity was 30mm, and residence time was 1 s. The martensite transformation of Ti-alloy occurred, and a large number of acicular martensite phases distributed in the heat affected zone of laser welding. The microstructure of welding zone was coarse β phase and acicular α phase. The microhardness decreased from the weld zone to the base metal in the welding joints with the decreasing of martensite phase. Based on the compression process recorded by the camera the deformation and failure process of the pyramid lattice structure were analyzed. The failure fracture of truss rod occurred in the heat-affected zone. The compression pressure strength and modulus of the TC4 Ti-alloy lattice structure manufactured by laser welding were 3.09 MPa and 153.25 MPa, respectively.

Key words： metallic materials pyramid lattice structure laser welding microstructure compression performance

收稿日期: 2020-07-13

ZTFLH:

TG430.40

基金资助:山东省自然科学基金(ZR2019MEE008);山东省重点研发计划(2019TSLH0103)

作者简介: 刘玮，女，1993年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2020.286 或 https://www.cjmr.org/CN/Y2021/V35/I8/623

表1 TC4钛合金的成分

图1 用高温节点下压法制备的金字塔点阵芯体

图2 焊接设备和快速夹具

图3 点阵芯体的焊接

表2 用响应曲面法分析激光焊接的参数因素和水平

表3 激光焊接参数优化响应曲面的实验设计和结果

图4 响应曲面实验的点焊试件

表4 焊点直径数学模型的方差分析表

图5 焊点直径、功率和离焦量的响应曲面和等高线

图6 激光焊TC4 1×1单元点阵结构

图7 TC4钛合金的原始金相组织

图8 不同区域的微观组织

图9 激光焊接点阵结构接头处显微硬度的分布

图10 激光焊接点阵压缩实验中金字塔点阵的失效过程

图11 激光焊点阵结构的压缩载荷位移曲线

1	Gibson L J, Ashby M F. Cellular solids: structure and properties [M]. Cambridge: Cambridge University Press, 1997
2	Feng R J, Yu J M. Honeycomb sandwich plate and its application in automotive industry [J]. Automobile Technology & Material, 2003, (8): 30
2	冯仁杰, 于九明. 蜂窝夹芯复合板及其在汽车工业中的应用 [J]. 汽车工艺与材料, 2003, (8): 30
3	Davies G O, Hitchings D, Besant T, et al. Compression after impact strength of composite sandwich panels [J]. Compos. Struct., 2004, 63(1): 1
4	Wadley H N G, Fleck N A, Evans A G. Fabrication and structural performance of periodic cellular metal sandwich structures [J]. Compos. Sci. Technol., 2003, 63(16): 2331
5	Froend M, Fomin F, Riekehr S, et al. Fiber laser welding of dissimilar titanium (Ti-6Al-4V/cp-Ti) T-joints and their laser forming process for aircraft application [J]. Opt. Laser Technol., 2017, 96: 123
6	Rack H J, Qazi J I. Titanium alloys for biomedical applications [J]. Mater. Sci. Eng. C, 2006, 26(8): 1269
7	Bartolomeu F, Buciumeanu M, Pinto E, et al. Wear behavior of Ti6Al4V biomedical alloys processed by selective laser melting, hot pressing and conventional casting [J]. T. Nonferr. Metal. Soc., 2017, 27(4): 829
8	Sypeck D J, Wadley H N G. Cellular truss core sandwich structures [J]. Appl. Compos. Mater., 2005, 12(3-4): 229
9	Bai L S. Study on preparation of Ti6Al4V three-dimensional lattice structure and its mechanical behavior [D]. Beijing: Beijing Jiaotong University, 2015
9	白利硕. 钛合金三维点阵结构制备和力学行为研究 [D]. 北京:北京交通大学, 2015
10	Zhao B, Li Z Q, Hou H L, et al. Research progress on fabrication methods of metal three dimensional lattice structure [J]. Rare Metal Mat. Eng., 2016, 45(8): 2189
10	赵冰, 李志强, 侯红亮等. 金属三维点阵结构制备技术研究进展 [J]. 稀有金属材料与工程, 2016, 45(8): 2189
11	Zeng S, Zhu R, Jiang W, et al. Research Progress of Metal Lattice Materials [J]. Material Reports, 2012, 26(5): 18
11	曾嵩, 朱荣, 姜炜等. 金属点阵材料的研究进展 [J]. 材料导报, 2012, 26(5): 18
12	Wu S Q, Lu Y J, Gan Y L, et al. Microstructural evolution and microhardness of a selective-laser-melted Ti-6Al-4V alloy after post heat treatments [J]. J. Alloy. Compd., 2016, 672: 643
13	Zhao Q, Liu Y, Wang L, et al. Effect of strain rate on tensile deformation behavior of laser welded joints of superalloy GH4169 [J]. Chin. J. Mater. Res., 2016, 30(12): 881
13	赵强, 刘杨, 王磊等. 应变速率对GH4169合金焊接接头拉伸变形行为的影响 [J]. 材料研究学报, 2016, 30(12): 881
14	Sahoo S K, Bishoyi B, Mohanty U K, et al. Effect of laser beam welding on microstructure and mechanical properties of commercially pure titanium[J]. Trans. Indian Inst. Met., 2017, 70(7): 1817
15	Chan C W, Smith G C. Fibre laser joining of highly dissimilar materials: commercially pure Ti and PET hybrid joint for medical device applications [J]. Mater. Des., 2016, 103: 278
16	Gong W H, Chen Y H, Ke L M. Microstructure and properties of laser micro welded joint of TiNi shape memory alloy [J]. Trans. Nonferr. Metal. Soc., 2011, 21(9): 2044
17	Quazi M M, Ishak M, Fazal M A, et al. Current research and development status of dissimilar materials laser welding of titanium and its alloys [J]. Opt. Laser Technol., 2020, 126: 106090
18	Xu Z Z, Dong Z Q, YU Z H, et al. Relationships between microhardness, microstructure, and grain orientation in laser-welded joints with different welding speeds for ti6al4v titanium alloy [J]. T. Nonferr. Metal. Soc., 2020, 30(5): 1277
19	Zhang Y Y, Zhu Z H, Liu J Z, et al. Research on laser welding of 1.2 mm thick TC4 titanium alloy [J]. Applied laser., 2019, 39(4): 596
19	张颖云, 朱增辉, 刘江哲等. 1.2 mm厚TC4钛合金薄板激光焊工艺研究 [J]. 应用激光, 2019, 39(4): 596
20	Gao X L, Zhang L J, Liu J, et al. Effects of weld cross-section profiles and microstructure on properties of pulsed Nd: YAG laser welding of Ti6Al4V sheet [J]. Int. J. Adv. Manuf. Technol., 2014, 72(5-8): 895
21	Kumar C, Das M, Paul C P, et al. Comparison of bead shape, microstructure and mechanical properties of fiber laser beam welding of 2 mm thick plates of Ti-6Al-4V alloy [J]. Opt. Laser Technol., 2018, 105: 306
22	Zhang X L, Li F G, Peng F H, et al. Hot workability of Ti6Al4V alloy based on processing map [J]. Journal of Aeronautical Materials, 2007, (5): 40
22	张晓露, 李付国, 彭富华等. 基于热加工图的TC4合金热成形性能研究 [J]. 航空材料学报, 2007, (5): 40
23	Zhang T Y. Study on fine-grain size titanium 6Al-4V alloy material for low temperature superplasticity [D]. Changsha: Central South University.2014
23	张拓阳. 细晶TC4合金的低温超塑性变形研究 [D]. 长沙:中南大学, 2014
24	Geng L B. Research on laser welding technology for car battery covers [D]. Harbin: Harbin Institute of Technology, 2017
24	耿立博. 汽车动力电池盖板激光焊接工艺研究 [D]. 哈尔滨:哈尔滨工业大学, 2017
25	Zhao X L, Wang B, Gong S L, et al. Study on microstructure and mechanical properties of laser welded joint of 2 mm thick TC4 titanium alloy [J]. Hot Working Technology, 2017, 46(9): 209
25	赵晓龙, 王彬, 巩水利等. 2.0 mm厚TC4钛合金激光焊接接头组织与力学性能研究 [J]. 热加工工艺, 2017, 46(9): 209

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