AE07.pdf

Chapter 2 fundamentals of acoustic emission testing

This preview shows page 5 - 8 out of 47 pages.

Chapter 2. Fundamentals of Acoustic Emission Testing Movie. Acoustic emission differs from other methods — Physical Acoustics Corporation, Princeton, NJ; for the Federal Highway Administration, United States Department of Transportation, Washington, DC. Movie. Pencil break source — Physical Acoustics Corporation, Princeton, NJ. Movie. Guard transducers control noise — Physical Acoustics Corporation, Princeton, NJ; for the Federal Highway Administration, United States Department of Transportation, Washington, DC. Chapter 5. Acoustic Emission Signal Processing Movie. System with one channel — Physical Acoustics Corporation, Princeton, NJ; for the Federal Highway Administration, United States Department of Transportation, Washington, DC. Chapter 6. Acoustic Leak Testing Movie. Ultrasonic vibration of gas molecules escaping orifice — UE Systems, Elmsford, NY. Sound. Audible analog of ultrasonic signal — UE Systems, Elmsford, NY. Movie. Steam system leak test — UE Systems, Elmsford, NY. Movie. Amplitude rise heard through ultrasound detector as rough and raspy — UE Systems, Elmsford, NY. Chapter 7. Acoustic Emission Testing for Process and Condition Monitoring Movie. Discontinuities from welds — Physical Acoustics Corporation, Princeton, NJ; for the Federal Highway Administration, United States Department of Transportation, Washington, DC. Chapter 13. Acoustic Emission Testing Glossary Movie. Pencil break source — Physical Acoustics Corporation, Princeton, NJ; for the Federal Highway Administration, United States Department of Transportation, Washington, DC. Movie Sources
Image of page 5

Subscribe to view the full document.

Ronnie K. Miller, Loveland, Ohio Mark F. Carlos, Physical Acoustics Corporation, Princeton, New Jersey (Part 6) Jason W. Dong, Physical Acoustics Corporation, Princeton, New Jersey (Part 5) David A. Dornfeld, University of California, Berkeley, California (Part 1) Trevor Holroyd, Holroyd Instruments, Bonsall Near Matlock, Derbyshire, United Kingdom (Part 4) Sotirios J. Vahaviolos, Physical Acoustics Corporation, Princeton, New Jersey (Part 2) James L. Walker, National Aeronautics and Space Administration, Marshall Space Flight Center, Alabama (Part 3) Acoustic Emission Testing for Process and Condition Monitoring 7 C H A P T E R
Image of page 6
Introduction to Process Monitoring The goal of process and condition monitoring is to maximize the quality in each manufactured part and to reduce the number of rejectable parts. Process monitoring includes coining process monitoring; drill wear monitoring; chip form detection during cutting; tool wear and fracture monitoring; wheel contact and spark-out detection during grinding; punch stretch monitoring; chatter detection during end milling; and cure monitoring. Acoustic Emission from Milling In milling with rotating multiple-toothed cutters, the cutting process varies in chip load and relative tool work velocity. There is a potential for chip congestion and tool rubbing noise. The basic acoustic emission signal from material deformation inherent in chip formation and tool contact is complicated by these other sources of
Image of page 7

Subscribe to view the full document.

Image of page 8

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern