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Using ultrasonic sensors for powder injection molding

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  • Testing & Analysis
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Abstract

Previous research efforts concentrating on proof-of-principle studies have shown that ultrasonic nondestructive evaluation can be applied to the process monitoring of a powder-injection-molding system. This research has resulted in the successful detection of several injection-molding problems, such as flashing, short shot, sticking, and sink marks. Past techniques, however, have required that the sensors be positioned so that the ultrasonic wave (bulk or guided) directly interacts with the defect. This article reports results from a technique that uses only one sensor for detecting several common injection-molding defects and does not require that the wave interact directly with the defect.

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References

  1. S.M. Menon et al., “Ultrasonic Sensors for Powder Injection Molding,” Advances in Powder Metallurgy & Particulate Materials, 4 (1994), pp. 71–84.

    Google Scholar 

  2. J.L. Rose et al., “An Ultrasonic Sensor Innovation for Improved Process Control in Powder Injection Molding” (Paper presented at the ASME Control Conference, Seattle, WA, June 1995).

    Google Scholar 

  3. J.L. Rose et al., “A Model for Transverse Wave Sensitivity to Poor Adhesion in Adhesively Bonded Joints,” JASA, 80 (1986), Supp.1.

    Google Scholar 

  4. J.E. Eder and J.L. Rose, “Viscoelastic Wave Propagation in Anisotropic Media with Application for Composite Cure Monitoring,” AMD-Wave Propagation and Emerging Technologies, vol. 188 (New York: ASME, 1994), pp. 173–186.

    Google Scholar 

  5. C. Thomas, J.L. Rose, and Z.K. Ii, “An Ultrasonic Sensor to Monitor the Mold Cavity Conditions During Injection Molding,” Review of Progress in Quantitative Nondestructive Evaluation, ed. D.O. Thompson and D.E. Chimenti (New York: Plenum Press, 1993), pp. 2333–2340.

    Google Scholar 

  6. J.L. Rose, “Recent Advances in Guided Wave NDE” (Paper presented at the IEEE International Ultrasonics Symposium, Seattle, WA, November 7–10, 1995).

    Google Scholar 

  7. SNNS User Manual, version 4.1, University of Stuttgart, Institute for Parallel and Distributed High Performance Systems.

  8. A.S. Birks, R.E. Green, Jr., and Paul McIntire, eds., Ultrasonic Testing: Nondestructive Testing Handbook (2nd ed.), vol. 7 (Columbus, OH: American Society for Nondestructive Testing, 1991).

    Google Scholar 

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Hongerholt, D.D., Rose, J.L. & German, R.M. Using ultrasonic sensors for powder injection molding. JOM 48, 24–28 (1996). https://doi.org/10.1007/BF03223068

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