Vacuum-Assisted Hot-Forming Using Tailored Laminate Temperature
Vacuum-Assisted Hot-Forming Using Tailored Laminate Temperature
复制标题
使用定制层压温度的真空辅助热成型
DOI：
10.1007/s10443-020-09858-8
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发表时间：
2021
影响因子：
2.3
通讯作者：
M. Åkermo
中科院分区：
文献类型：
--
作者：
Tommy Grankäll;P. Hallander;M. Åkermo
介绍了一种采用定制层压温度的非等温真空辅助热成形工艺。通过工艺模拟和制造实验，与标准热成形工艺相比，获得了较好的层压板质量。此外，还表明，在洁净室的制造时间可以减少到标准工艺时间的十分之一。本研究将8.4 mm厚的单向预浸料准各向同性层压板用自动铺带机铺平，热成型为u型层压板。然后在凹模中固化层压板，内部有标准袋。一个完整的定制温度热成型周期为7.5分钟，产生了非常好的最终层压板质量，总厚度变化低至4.0%，没有褶皱或孔隙迹象。在4分钟的热成型循环中，厚度变化在8%也是可以接受的。
A non-isothermal vacuum assisted hot-forming process using tailored laminate temperature is introduced. By using process simulation and manufacturing experiments, improved laminate quality is achieved compared to the standard hot-forming process. Furthermore, it is also shown that the manufacturing time in the clean room can be reduced to one tenth of the standard process time. In this study 8.4 mm thick quasi-isotropic laminates from unidirectional prepreg were laid up flat with an automatic tape laying machine and hot-formed to a U-shaped laminate. The laminates were then cured in a concave mould with standard bag on the inside. A complete tailored temperature hot-forming cycle of 7.5 min produced a very good final laminate quality with a total thickness variation as low as 4.0% and without wrinkles or indications of porosity. With a 4 min hot-forming cycle the thickness variation was also acceptable at 8%.
分层介质中的内部起皱不稳定性
影响因子：
1.6
作者：
Dodwell T
通讯作者：
Dodwell T
影响因子：
9.1
作者：
Dodwell, T. J.;Butler, R.;Hunt, G. W.
通讯作者：
Hunt, G. W.
DOI：
10.1115/1.4039555
发表时间：
2018-07-01
影响因子：
4
作者：
Belnoue, J. P. -H.;Nixon-Pearson, O. J.;Hallett, S. R.
通讯作者：
Hallett, S. R.