Abstract
Various quantitative nondestructive evaluation (QNDE) methods have been and still are subjected to highlight in research and development to promote the quality of PM materials. One of the most promising methodologies is an ultrasonic measurement method to be working even on process. Authors have been developing the ultrasonic array sensing system for on-process assessment of varying geometry and dimension of green compacts and change of their elastic properties and porosity structures. In our developed proto-type system, any pairs of ultrasonic transducers can be systematically chosen to make data correlation for data processing. Hence, geometric configuration change of PM parts in pressing can be traced on-time or on-line together with direct estimate of the change of elasticity in densification. Our developed ultrasonic array sensing system for QNDE in CIP is briefly introduced with some comments on the ultrasonic spectroscopy where visco-elasticity of materials should have macroscopic correlation with phase shift and frequency spectrum. Aluminum powder compaction by CIP is employed as a targeting forming for on-line assessment of change of geometric configuration and porosity structure in pressing.
| Original language | English |
|---|---|
| Title of host publication | Advances in Powder Metallurgy and Particulate Materials |
| Publisher | Metal Powder Industries Federation |
| Volume | 3 |
| Publication status | Published - 1995 |
| Externally published | Yes |
| Event | Proceedings of the 1995 International Conference & Exhibition on Powder Metallurgy & Partuculate Materials. Part 1 (of 3) - Seattle, WA, USA Duration: 1995 May 14 → 1995 May 17 |
Other
| Other | Proceedings of the 1995 International Conference & Exhibition on Powder Metallurgy & Partuculate Materials. Part 1 (of 3) |
|---|---|
| City | Seattle, WA, USA |
| Period | 95/5/14 → 95/5/17 |
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ASJC Scopus subject areas
- Mechanical Engineering
- Metals and Alloys
Cite this
Nondestructive insitu-evaluation of powder compact in pressing by the ultrasonic array-sensing. / Aizawa, Tatsuhiko; Watanabe, Tomotaro; Kihara, Junji.
Advances in Powder Metallurgy and Particulate Materials. Vol. 3 Metal Powder Industries Federation, 1995.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Nondestructive insitu-evaluation of powder compact in pressing by the ultrasonic array-sensing
AU - Aizawa, Tatsuhiko
AU - Watanabe, Tomotaro
AU - Kihara, Junji
PY - 1995
Y1 - 1995
N2 - Various quantitative nondestructive evaluation (QNDE) methods have been and still are subjected to highlight in research and development to promote the quality of PM materials. One of the most promising methodologies is an ultrasonic measurement method to be working even on process. Authors have been developing the ultrasonic array sensing system for on-process assessment of varying geometry and dimension of green compacts and change of their elastic properties and porosity structures. In our developed proto-type system, any pairs of ultrasonic transducers can be systematically chosen to make data correlation for data processing. Hence, geometric configuration change of PM parts in pressing can be traced on-time or on-line together with direct estimate of the change of elasticity in densification. Our developed ultrasonic array sensing system for QNDE in CIP is briefly introduced with some comments on the ultrasonic spectroscopy where visco-elasticity of materials should have macroscopic correlation with phase shift and frequency spectrum. Aluminum powder compaction by CIP is employed as a targeting forming for on-line assessment of change of geometric configuration and porosity structure in pressing.
AB - Various quantitative nondestructive evaluation (QNDE) methods have been and still are subjected to highlight in research and development to promote the quality of PM materials. One of the most promising methodologies is an ultrasonic measurement method to be working even on process. Authors have been developing the ultrasonic array sensing system for on-process assessment of varying geometry and dimension of green compacts and change of their elastic properties and porosity structures. In our developed proto-type system, any pairs of ultrasonic transducers can be systematically chosen to make data correlation for data processing. Hence, geometric configuration change of PM parts in pressing can be traced on-time or on-line together with direct estimate of the change of elasticity in densification. Our developed ultrasonic array sensing system for QNDE in CIP is briefly introduced with some comments on the ultrasonic spectroscopy where visco-elasticity of materials should have macroscopic correlation with phase shift and frequency spectrum. Aluminum powder compaction by CIP is employed as a targeting forming for on-line assessment of change of geometric configuration and porosity structure in pressing.
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M3 - Conference contribution
AN - SCOPUS:0029484765
VL - 3
BT - Advances in Powder Metallurgy and Particulate Materials
PB - Metal Powder Industries Federation
ER -