Research on Precision Joining Technology for Platinum Electrode Leads and Heterogeneous Multi Strand Wires

TU Jiaxi; WU Hongyan; LIU Guanpeng; QI Wanli; ZHANG Timing; CHEN Yuhua

doi:10.7512/j.issn.1001-2303.2023.08.11

Welding of Non-Ferrous Light Metal | Views : 0 下载量: 10 CSCD: 0

PDF
Export
Share
Collection
Album

Research on Precision Joining Technology for Platinum Electrode Leads and Heterogeneous Multi Strand Wires
Vol. 53, Issue 8, Pages: 86-92(2023)
DOI： 10.7512/j.issn.1001-2303.2023.08.11

扫描看全文

涂佳汐，吴鸿燕，刘冠鹏，等.铂电极引线与异质多股导线的精密连接技术研究［J］.电焊机，2023，53（8）：86-92.

TU Jiaxi, WU Hongyan, LIU Guanpeng, et al.Research on Precision Joining Technology for Platinum Electrode Leads and Heterogeneous Multi Strand Wires[J].Electric Welding Machine, 2023, 53(8): 86-92.
涂佳汐，吴鸿燕，刘冠鹏，等.铂电极引线与异质多股导线的精密连接技术研究［J］.电焊机，2023，53（8）：86-92. DOI： 10.7512/j.issn.1001-2303.2023.08.11.

TU Jiaxi, WU Hongyan, LIU Guanpeng, et al.Research on Precision Joining Technology for Platinum Electrode Leads and Heterogeneous Multi Strand Wires[J].Electric Welding Machine, 2023, 53(8): 86-92. DOI： 10.7512/j.issn.1001-2303.2023.08.11.

摘要

针对航空传感元器件引脚线和不等直径异种材质多股高温导线的连接中存在的焊点直径不可控、镍基引脚线软化导致的焊点强度低、多股导线不能完全连接、工艺不稳定等技术难题，提出采用激光微焊接技术对铂电阻引线（0.2 mm镍丝或0.2 mm银丝）与导线（0.5 mm镍丝或铜镀银多股高温导线）之间的连接问题开展研究，进行一系列工艺实验。结果表明，采用激光微焊接技术能够实现0.2 mm镍丝与0.5 mm镍丝的良好焊接，接头无气孔、裂纹等缺陷，当激光功率百分比为14%、频率为4 Hz、脉冲宽度为3 ms时，焊接接头的拉剪力最高，可达22.75 N（0.2 mm镍丝母材的85.5%）；激光焊接输入能量在2.9 J以下时无法形成可靠焊点，当输入能量增加到3.2 J以上时，焊点尺寸明显过大，细丝大量熔化、甚至焊塌，而且软化严重；激光能量波动、焊接装配等都能明显导致软化的波动，造成接头拉剪力的稳定性较差；预涂钎料将多股线钎焊成一股再进行激光微焊接不适合该种零件的焊接，焊接接头质量不易控制，直径超过要求；采用压方机先对多股高温导线压方，再与0.2 mm镍（银）丝进行激光微焊接，焊接接头的拉剪力较低，拉伸接头断裂于焊缝处。通过上述基础研究，探索了激光微焊接方法用于该类产品连接的可行性，获得焊接工艺可行性、焊接接头的性能数据，有望为改进现有工艺方法、提高焊接接头承载能力提供指导和参考。

Abstract

In response to technical challenges such as uncontrollable joint diameter, softening of nickel based pin wires resulting in low solder joint strength, incomplete connection of multi stranded wires, and unstable process in the connection of aviation sensing component wires and multi stranded high-temperature wires of different materials with different diameters, This article proposes to use laser micro-welding technology to study the connection problem between platinum resistance leads (0.2 mm nickel wire or 0.2 mm silver wire) and wires (0.5 mm nickel wire or copper silver plated multi-strand high-temperature wires), and conduct a series of process experiments. The results show that laser micro-welding technology can achieve good welding between 0.2 mm nickel wire and 0.5 mm nickel wire, with no defects such as pores and cracks in the joint. When the laser power percentage is 14%, the frequency is 4 Hz, and the pulse width is 4 ms, the tensile shear force of the welded joint is the highest, reaching 22.75 N (85.5% of the 0.2 mm nickel wire base material); When the input energy of laser welding is below 2.9 J, reliable joints cannot be formed. When the input energy increases to 3.2 J or above, the joint size is significantly too large, with a large number of fine wires melting or even welding collapse, and severe softening; Laser energy fluctuations, welding assembly, and other factors can significantly lead to softening fluctuations, resulting in poor stability of joint tensile and shear forces; Pre coating solder to braze multiple wires into one strand and then perform laser micro-welding is not suitable for the welding of this type of part, as the quality of the welded joint is difficult to control and the diameter exceeds the requirements; Using a square pressing machine, multiple high-temperature wires are first pressed, and then laser micro welded with 0.2 mm nickel (silver) wire. The tensile shear force of the welded joint is low, and the tensile joint fractures at the weld seam. Through the above basic research, the feasibility of laser micro-welding method for the connection of such products was explored, and the feasibility of welding process and performance data of welded joints were obtained. It is expected to provide guidance for improving existing process methods and enhancing the load-bearing capacity of welded joints.

关键词

航空传感元器件激光微焊接异种金属微细丝

Keywords

aviation sensing componentslaser micro-weldingdissimilar metalmicrofilament

references

唐宏珲，赵苏顺，陈钱，等. 铂电阻传感器引线与不等直径异质多股导线连接新技术及焊接装置［J］. 精密成形工程，2018，10（05）：68-73.

TANG H H， ZHAO S S， CHEN Q， et al. New Technology and Welding Equipment for Joining Platinum Resistance Sensor Leads and Heterogeneous Multi-strand Wires of Various Diameters［J］. Journal of Netshape Forming Engineering， 2018， 10（05）： 68-73.

刘泽宇，戴浩，李智勇. 铅黄铜产品火焰钎焊质量控制研究——基于直升机全静压系统［J］. 工业技术创新，2021，8（5）：84-88.

LIU Z Y， DAI H， LI Z Y. Research on Quality Control of Flame Brazing of Lead Brass Products Based on Helicopter Total Static Pressure System［J］. Industrial Technology Innovation， 2021， 8（5）： 84-88.

朱艳. 钎焊［M］. 黑龙江：哈尔滨工业大学出版社，2012.

杨怀德，肖宁，仇一卿，等. GH3536高温合金3D打印件与T2纯铜火焰钎焊工艺研究［J］. 焊接技术，2023，52（2）：5-8+113.

YANG H D， XIAO N， QIU Y Q， et al. Research on torch brazing of T2 copper with 3D printing parts superalloy GH3536［J］. Welding Technology， 2023， 52（2）： 5-8+113.

李翠，董晓利，武晓军等. 高温钎焊和电阻钎焊纯铝接头的微观组织及性能对比［J］. 电焊机，2022，52（03）：72-77.

LI C， DONG X L， WU X J， et al. Comparison of microstructure and properties between high-temperature brazing and resistance brazing pure aluminum joints［J］. Electric welding machine， 2022， 52（03）： 72-77.

韦明彰，邓星权，李北华等. 薄壁壳体安装件电阻钎焊技术［J］. 机电元件，2021，41（6）：32-37.

WEI M Z， DENG X Q， LI B H， et al. Resistance brazing technology for thin-walled shell installation parts［J］.Electromechanical Components，2021，41（6）：32-37.

张昌青，荣琛，秦卓. 电阻钎焊过程的动态电阻特征分析［J］. 电焊机，2020，50（12）：18-21+109.

ZHANG C Q， RONG C， QIN Z. Analysis of dynamic resistance characteristics during resistance brazing process［J］. Electric welding machine， 2020， 50（12）： 18-21+109.

陈玉华，许明方，许章亮，等.微细丝与异种材质多股导线精密电阻钎焊实验装置开发［J］. 电焊机，2019，49（9）：88-90.

CHEN Y H， XU M F， XU Z L， et al. Development of a precision resistance brazing experimental device for micro wires and multi stranded wires made of different materials［J］. Electric welding machine， 2019， 49（9）： 88-90.

张应力. 焊接质量管理与控制读本［M］. 北京：化学工业出版社，2010：224-228.

Zhou X， Chen Y， Li S， et al. Friction stir spot welding-brazing of Al and hot-dip aluminized Ti alloy with Zn interlayer［J］. Metals， 2018， 8（11）： 922.

Du W， Xu J， Xiao R， et al. Laser micro-welding of stainless steel foil： Welding mode， microstructure and corrosion properties［J］. Optics & Laser Technology， 2023， 161： 109241.

Yan S， Li Z， Song L， et al. Research and development status of laser micro-welding of aluminum-copper dissimilar metals： A review［J］. Optics and Lasers in Engineering， 2023， 161： 107312.

张丽丽，孙树峰，王茜，等. 激光微纳连接技术研究进展［J］. 激光与光电子学进展，2022，59（03）：30-47.

ZHANG L L， SUN S F， WANG Q， et al. Research progress in laser micro nano connection technology［J］. Progress in Laser and Optoelectronics， 2022， 59（03）： 30-47.

李小婷，张继雪，王瑾. 纳秒脉冲激光微焊接316不锈钢［J］. 应用激光，2021，41（1）：107-116.

LI X T， ZHANG J X， WANG J. Nanosecond pulse laser micro welding of 316 stainless steel［J］. Applied Laser， 2021， 41（1）： 107-116.

Haddad E， Chung W S， Katz O， et al. Laser micro welding with fiber lasers for battery and fuel cell based electromobility［J］. Journal of Advanced Joining Processes， 2022， 5： 100085.

Alert me when the article has been cited

提交

Process Parameters Optimization of Friction Stir Spot Welding of Titanium and Aluminum Based on Response Surface Methodology

Development of precision resistance brazing experimental device for fine wire and multi-strand wire with dissimilar metal