skip to main content
Idioma:

Study on the surface/subsurface defects of cylindrical components based on laser ultrasonic technology

Sun, Feiyang ; Chen, Jiaming ; Zhang, Jing ; Chen, Xingyu ; Jia, Kangning ; Fan, Li ; Xu, Xiaodong ; Cheng, Liping ; Yan, Xuejun ; Zhang, Shuyi

Optics and laser technology, 2025-01, Vol.180, p.111399, Article 111399 [Periódico revisado por pares]

Elsevier Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Study on the surface/subsurface defects of cylindrical components based on laser ultrasonic technology
  • Autor: Sun, Feiyang ; Chen, Jiaming ; Zhang, Jing ; Chen, Xingyu ; Jia, Kangning ; Fan, Li ; Xu, Xiaodong ; Cheng, Liping ; Yan, Xuejun ; Zhang, Shuyi
  • Assuntos: Additive manufactured cylinder ; Circumferential guiding wave ; Laser ultrasonics ; Surface defect/subsurface defect
  • É parte de: Optics and laser technology, 2025-01, Vol.180, p.111399, Article 111399
  • Descrição: •Laser ultrasonics is used to evaluate the surface/subsurface quality of additive manufactured cylinders through a circumferential scanning system.•Blue shift effect of surface acoustic wave brought by subsurface defects and red shift effects brought by surface defects are proved, and these phenomena are confirmed in theory and experiments.•Surface acoustic wave propagating around cylinder is analyzed and its dispersion is also taken into account. With the rapid development of additive manufacturing (AM) technology, AM components are widely used in industrial production. However, during processing and in service, possible defects of AM components such as pores and cracks may affect product performance and bring safety risks. Thus, quality testing becomes increasingly important, especially for cylinders because they take on a lot of support and transmission work. The laser ultrasonic (LU) method shows great promise in the nondestructive testing of cylindrical AM components because it has the advantages of high sensitivity, wide band, and non-contact, breaking the limitation of the cylinder’s high curvature surface on the detection method. In this paper, research is carried out on solid AM cylinders with surface and subsurface defects using a non-contact LU circumferential scanning detection system. Surface acoustic wave (SAW) propagation and interaction with defects are theoretically studied in the time and frequency domain. It is found that a bigger subsurface defect will cause a more obvious blue shift effect in the frequency spectrum of SAW. Similarly, a deeper surface crack will cause a more intense red shift in the frequency spectrum of SAW, while the change in the width of the defect has little impact. This phenomenon is observed in both numerical simulation and experiment, and verified from the aspect of circumferential guiding waves. It shows the feasibility of using laser-induced ultrasound to detect surface and subsurface defects of cylindrical AM components.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  7 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.