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Phenolics are condensation cure and the water + volatiles produced needs to be carefully managed. Application of pressure can help, however, people have resorted to hydroclave to get the extreme pressures required for low porosity during cure, and I think this could be beyond the scope required...

Hi, There is some evidence in the literature that suggests a delaminated area increase in high strength fibre composites compared to HM fibre composites. I would suggest this is the case in the IM fibre panels you have. Therefore, the difference in the CAI could be better understood by bringing...

Looks like it would be a good candidate for water jet cutting. There may be some tolerance issues as there tends to be a divergence of the stream with increasing thickness, but it may be an option. You could also think about kitting material and using tooling blocks to mould in the main pockets...

Hi, I am looking for a halfway-house betweeen smooth shaded view with no face edges shown and shaded with face edges which shows up all the tangency lines in the body. I am using NX7.5 and have looked in Preferences/Visulisation but can't seem to get what. Basically I want a nice smooth looking...

I have seen moisture curing polyurethanes used as a matrix material. Applications include in-situ pipe repairs etc.. There are some applications which call for cure during service. Deployable space booms and antenna for one - these require tight packaging during launch and then can be inflated...

Compositepro is correct - tapes are often the simplest method for yarn placement. The preform or mandrel is often held in the braiding machine using a pin and if you design it with a suitable lead-in then you can use this as an anchor point - if you braid a high-angle initially over this pin in...

For some good information on the hybrid synergystic strengthening effect: http://www.tech.plym.ac.uk/sme/mats324/mats324A6%20hybrid.htm

Hi, Eurocarbon is probably the best name for biaxial and triax braids in Europe. There is AP in the U.S. which do the braiding for GE. To accurately control internal and external faces then RTM is probably the preferred technique for moulding the parts.

The trouble is that you can be fully constrained, but with open profiles and common lines in a sketch. It is only when you look to perform solid operations on them when you find out you have self-intersections or open curves. It would be great if NX could show you if your profiles are open or...

Hi, I am a recent convert to NX - I am used to v5 and miss the sketch solver. Can anyone suggest an efficient way of telling whether your sketch is joined together fully - all intersections G0 - I am getting fed up of going into downstream operations just to find I am not quite there. Your...