Laser welding defects detection in automotive industry based on radiation and spectroscopical measurements

Rodil, Sergio Saludes; Arnanz, Roberto; Bernárdez, José M.; Rodríguez, Fernando; Miguel, Luis; Perán, José R.

doi:10.1007/s00170-009-2395-y

Cited by 33 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Photodiodes are relatively cheap and also provide rich information of high-frequency features coming from the thermal radiation of metallic vapor and molten pool surface. They have been used to detect defects [383,384]. Spectrometers can provide the information on the species coming out of the weld pool and potentially plasma temperature, thus providing indirect information about the weld condition [385].…”

Section: -16 / Vol 142 November 2020mentioning

confidence: 99%

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Shin

Lei

et al. 2020

Journal of Manufacturing Science and Engineering

View full text Add to dashboard Cite

Recent years have witnessed a rapid growth of the laser market. Figure 1 shows the recent revenues of laser sales with about 50% increase in revenue over recent four years , which far exceeds the growth of other industrial sectors. More than one third of this revenue belongs to the category of laser materials processing arena. Undoubtedly, lasers have been playing increasingly important roles in various industrial manufacturing sectors. This article is to capture some of important developments in the rapidly growing areas of laser-based manufacturing and materials processing and also describe important technological issues pertaining to various laser-based manufacturing processes. The topics to be covered in this paper include more popularly used processes in industry such as laser additive manufacturing, laser-assisted machining, laser micromachining, laser forming, laser surface texturing, laser welding, and laser shock peening, although there are several additional areas of laser applications. In each section, a brief overview of the process is provided, followed by critical issues in implementing the process, such as properties, predictive modeling, and process monitoring, and finally some remarks on future issues that can guide researchers and practitioners.

show abstract

Section: -16 / Vol 142 November 2020mentioning

confidence: 99%

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Shin

Lei

et al. 2020

Journal of Manufacturing Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Once the correlation is specified, the frequency features of the characteristic signals when weld defects occur can be identified. 36 Schmidt and his research staff have pointed out that in the case of a 3·6 kW laser lap welding of zinc coated steel sheets, with the material thickness being 1·3–2·5 mm and the welding speed being 4–6 m min, the frequency of weld pool oscillations is within the range of 300–500 Hz, while that of the keyhole oscillations is within the range of 2000–2500 Hz. 37, 38 As shown in Fig.…”

Section: Fundamental Research Of Different Sensors For Laser Welding ...mentioning

confidence: 99%

Review of laser welding monitoring

You

Gao

Katayama

2014

Science and Technology of Welding and Joining

192

View full text Add to dashboard Cite

Laser welding, as a highly efficient processing technology, has been widely applied to manufacturing industry. This paper makes an overview on real time monitoring of laser welding. It begins with a detailed introduction to six typical sensors (photodiode, visual, spectrometer, acoustical sensor, pyrometer, plasma charge sensor) in laser welding detection. Then it makes a review on multi-sensor fusion technology in both laser welding monitoring and adaptive control. Last, subjects for future research concerning welding monitoring and control have been proposed. The paper concludes that the real-time monitoring of laser welding can provide a great amount of valid information about welding status to help effectively identify weld defects and realize adaptive control.

show abstract

“…al. [8] discussed the laser welding process evaluated by formation of an electron-free plasma, these radiation used for the detection of weld defects. These weld defects detect by two different approaches, first is based on the power spectrums of a photodiode-generated signal which is correlate between welding defects and second is based on plasma electronic temperature.…”

Section: Existing Research Effortsmentioning

confidence: 99%

A Review on Analysis, Monitoring and Detection of Weld Defect Products

Kumar¹,

Somkuva²

2015

IJERT

View full text Add to dashboard Cite

Weld defects detection method is generally evaluated on the basis of weld defects, weld disturbances, welding parameters and welding process monitoring system. The importance of weld defects detection is to identify the weld defects and weld disturbance in the welding process. The weld defect detection methods or devices to identify and monitoring the weld defects like internal and external cracks, lack of fusion, lack of penetration, porosity, blow holes, slag inclusion, lamellar tear and deformation etc. There are many approach or techniques to detect the weld defects basically DPT, MPI, RT, UT and VI for various materials. Reviews of various approaches compare relative advantages main, features and limitations of welding process. This paper analyzes the development done in the area of defect detection methods and monitoring systems in welding process.

show abstract

Laser welding defects detection in automotive industry based on radiation and spectroscopical measurements

Cited by 33 publications

References 21 publications

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Review of laser welding monitoring

A Review on Analysis, Monitoring and Detection of Weld Defect Products

Contact Info

Product

Resources

About