汽车车身自动线点焊的质量控制
Quality Control of Automatic Spot Welding for Automobile Body
- 2025年55卷第8期 页码:100-106
收稿:2024-12-21,
修回:2025-01-15,
纸质出版:2025-08-20
DOI: 10.7512/j.issn.1001-2303.2025.08.11
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收稿:2024-12-21,
修回:2025-01-15,
纸质出版:2025-08-20
移动端阅览
随着全球对于环保和节能的日益重视,以及消费者对于汽车安全性及可靠性愈发关注,市场对汽车提出越来越高的轻量化、安全性及耐蚀性等多目标要求,这推动了超高强度钢、轻合金、镀层材料及结构胶等的大量应用。材料的可焊性下降,焊接不良率上升,使汽车车身自动线点焊工艺质量管理面临诸多难题。本文从焊接质量源流保证角度,分析了点焊的主要影响因素及控制措施,包括焊接参数(如采用“马鞍形”通电波形、中频自适应焊接技术)、电极条件(如规范更换安装、引入修磨视觉监测)、焊枪性能(如定期检证输出、优化打点姿态)、工件状态(如管控配合状态与清洁度)等关键要素的管控;同时从焊接缺陷防止流出的角度,探讨了强度检查体制的完善,包括多种检查方式(目视检查、半破坏检查、超声波无损检查等)的应用及创新性的焊点分级管控体系(A 级全检、B 级高频抽检、C 级常规抽检),旨在为汽车行业的车身点焊质量管理提供参考与借鉴。
With the increasing global emphasis on environmental protection and energy conservation
and consumers' growing concern for automobile safety and reliability
the market has set increasingly high requirements for vehicles in terms of lightweighting
safety
and corrosion resistance. This has driven the extensive application of ultra-high-strength steels
light alloys
coated materials
and structural adhesives. The decline in material weldability and the increase in defective welding rates have posed many challenges to the quality management of automatic spot welding processes in automobile bodies. This paper analyzes the main influencing factors and control measures of spot welding from the perspective of ensuring welding quality at the source
including the control of key elements such as welding parameters (e.g.
using a "saddle-shaped" power waveform
medium-frequency adaptive welding technology)
electrode conditions (e.g.
standardizing replacement and installation
introducing grinding visual monitoring)
torch performance (e.g.
regular verification of output
optimizing spotting posture)
and workpiece conditions (e.g.
controlling matching state and cleanliness). At the same time
from the perspective of preventing welding defects from leaving the process
the paper discusses the improvement of the strength inspection system
including the application of various inspection methods (visual inspection
semi-destructive inspection
ultrasonic non-destructive inspection
etc.) and an innovative welding spot grading control system (A-level full inspection
B-level high-frequency sampling inspection
C-level routine sampling inspection)
aiming to provide reference and guidance for the quality management of spot welding in the automobile industry.
赵熹华 . 压力焊 [M]. 北京 : 机械工业出版社 , 1989 .
王永胜 , 徐庆华 . 基于故障树的点焊电极帽粘脱原因分析 [J]. 电焊机 , 2010 , 40 ( 05 ): 74 - 77 .
WANG Y S , XU Q H . Failures analysis of electrode-cap-off on resistance spot weld based on fault tree [J]. Electric Welding Machine , 2010 , 40 ( 05 ): 74 - 77 .
王亚荣 , 张忠典 , 冯吉才 . 电阻点焊过程中动态电阻的变化规律 [J]. 电焊机 , 2006 , 36 ( 02 ): 42 - 44 .
WANG Y R , ZHANG Z D , FENG J C . Studies of dynamic resistance in resistance spot welding [J]. Electric Welding Machine , 2006 , 36 ( 02 ): 42 - 44 .
王敏 . 电阻焊在汽车工业中的应用 [J]. 电焊机 , 2003 , 33 ( 01 ): 1 - 6 .
WANG M . Application of Resistance Welding in the Automotive Industry [J]. Electric Welding Machine , 2003 , 33 ( 01 ): 1 - 6 .
易铁 , 田永强 , 蒋冬 , 等 . 不同自适应控制系统在汽车点焊中的应用 [J]. 焊接技术 , 2018 , 47 ( 10 ): 80 - 84 .
YI T , TIAN Y Q , JIANG D , et al . Application of different adaptive control systems in spot welding of automobile [J]. Welding Technology , 2018 , 47 ( 10 ): 80 - 84 .
张洪延 . 《电阻焊:基础与应用(第二版)》 [M]. 北京 : 科学出版社 , 2017 .
汪飞 , 毛建华 , 叶少剑 , 等 . 点焊机器人电极修磨浅析 [J]. 汽车零部件 , 2023 ( 02 ): 85 - 87 .
WANG F , MAO J H , YE S J , et al . Analysis on Electrode Grinding of Spot Welding Robot [J]. Automotive Parts , 2023 ( 02 ): 85 - 87 .
王朝建 . 汽车车身点焊电极修磨器的优化调整 [J]. 焊接技术 , 2022 ( 05 ): 51 .
WANG C J . Optimization and adjustment of spot welding electrode grindring machine for automobile body [J]. Welding Technology , 2022 ( 05 ): 51 .
郭亚洲 , 张勇 , 付玉生 , 等 . 非破坏性凿检对高强钢点焊接头性能的影响 [J]. 汽车工艺与材料 , 2015 ( 08 ): 23 - 25+29 .
GUO Y Z , ZHANG Y , FU Y S , et al . Impact of non-destructive chiseling inspection on the performance of spot welds in high-strength steels [J]. Automobile Technology & Material , 2015 ( 08 ): 23 - 25+29 .
刘倩雯 , 张南峰 , 阮洁珊 , 等 . 电阻点焊质量检测技术研究现状 [J]. 精密成形工程 , 2022 , 14 ( 05 ): 83 - 93 .
LIU Q W , ZHANG N F , RUAN J S , et al . Research Status of Quality Detection Technology for Resistance Spot Welding [J]. Journal of Netshape Forming Engineering , 2022 , 14 ( 05 ): 83 - 93 .
韩晓丽 , 肖富城 , 肖灵 . 汽车点焊超声波检测技术发展与趋势 [J]. 焊接 , 2018 ( 03 ): 34-40+66 - 67 .
HAN X L , XIAO F C , XIAO L . Development and trends of ultrasonic testing of automobile spot welding . Welding & Joining , 2018 ( 03 ): 34-40+66 - 67 .
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