Effect of Cooling Rate on the Mechanical Strength of Carbon Fiber-Reinforced Thermoplastic Sheets in Press Forming

フォーマット:

論文

責任表示:

Tatsuno, Daichi ; Yoneyama, Takeshi ; Kawamoto, Kiichiro ; Okamoto, Masayuki

言語:

英語

出版情報:

Springer New York LLC, 2017-07-01

著者名:

• Tatsuno, Daichi
• Yoneyama, Takeshi
• Kawamoto, Kiichiro
• Okamoto, Masayuki

掲載情報:

Journal of Materials Engineering and Performance

ISSN:

1059-9495      

巻:

26

通号:

7

開始ページ:

3482

終了ページ:

3488

バージョン:

author

概要:

The purpose of this study is to elucidate the effect of the cooling rate of the carbon fiber-reinforced thermoplastic (CFRTP) sheets on the mechanical property in the press forming within 1 min cycle time. In order to pay attention only to the compression stage after the deformation stage in press forming, a flat sheet of dimensions 200 mm × 100 mm × 3 mm was produced. It was fabricated by stacking 15 CFRTP sheets of 0.2-mm-thick plain woven fabric impregnated with … PA6, preheating them to 280 °C and pressing them at 5 MPa using a die cooled from near the melting temperature of PA6 with various cooling rates. Cooling rate of −26 °C/s with pressure holding time (defined in this study as the period that the pressure sensor detects high pressure) of 7 s and that of −4.4 °C/s with pressure holding time of 18 s gave a flexural strength of 536 and 733 MPa, respectively. It was found that the cooling rate during pressure holding is related to the mechanical property of press-formed CFRTP part. © 2017 ASM International<br />Embargo Period 12 months 続きを見る

URL:

http://hdl.handle.net/2297/48455