Numerical Analysis of Effect of Pin Tip Radius on Residual Stress Distribution in Ultrasonic Impact Treatment
-
- Ohta Takahiro
- School of Engineering, Tokai University
この論文をさがす
抄録
<p>Ultrasonic impact treatment (UIT) is currently used in several manufacturing processes. UIT is a process in which ultrasonic vibration is used to impact pins onto a metal surface. To clarify the mechanisms of deep compressive residual stress in UIT, the effects of the pin tip radius on residual stress distributions were analyzed by the dynamic explicit finite element method. The sonotrode vibration amplitude and frequency were 25 µm and 20 kHz, respectively. The pin velocity accelerated by the sonotrode was approximately 4.6 m·s−1 at the first impact. The depth of the residual compressive stress remained nearly constant after the first impact for pins of various tip radii (1.5, 3, 8 and 12 mm). During the first 10 ms, eleven impacts occurred between the 8 mm tip radius pin and the metal surface. The pin velocities were highly dependent on the sonotrode velocity in the collision range from 4 to 16 m·s−1. The depth of residual compressive stress increased with increasing impact number. After 10 ms, the depth of residual compressive stress was approximately 2.5 mm when using an 8 mm tip radius pin, and it increased with increasing tip radius.</p><p> </p><p>This Paper was Originally Published in Japanese in J. JSTP 58 (2017) 35–40.</p>
収録刊行物
-
- MATERIALS TRANSACTIONS
-
MATERIALS TRANSACTIONS 59 (4), 656-662, 2018
公益社団法人 日本金属学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204252597504
-
- NII論文ID
- 130006549541
-
- NII書誌ID
- AA1151294X
-
- ISSN
- 13475320
- 13459678
-
- NDL書誌ID
- 028918630
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可