Talk:Out of autoclave composite manufacturing

This article is likely the product of an employee at Quickstep Technologies LLC. It describes only one out-of-autoclave technology (that belonging to Quickstep) and fails to mention that there are a plethora of other technologies available. As an expert in the field I recommend that the article be deleted, or balanced. Significant content would be required as well as a change to the structure of the page. JaronBaron (talk) 15:49, 25 March 2011 (UTC)

Prepreg compression molding - proposing section edits:

This section has a poor (misleading) title and I don't think it is an out of autoclave (OOA) fabrication process. If there are no additional comments in the next few weeks, I'll remove the content from here and perhaps move it to an article about autoclave curing.

RE: title - these tapes are used as a compression step in the layup process of round (cylindrical) components. Using the term "compression molding" in the title seems to refer to a different process (compression molding of plastic parts) than one using these tapes.

RE: content - I am familiar with the use of these compression tapes as a compaction step in the layup process, and also in a cure process in an autoclave. Not in an OOA cure, as the part still must have heat applied to cure the resin and pressure applied (as in an autoclave) to achieve the desired resin/fiber ratio typically required in high-tech composites. If anyone knows of a cure cycle using these tapes without an autoclave, then we should leave this content in this article. I suppose a 2-part epoxy that cures at room temperature could use these tapes, but the reference supplied seems to refer to autoclave curing. SunKider (talk) 21:47, 15 January 2013 (UTC)

Introduction

made edits to the introduction and other sections. SunKider (talk) 00:12, 16 January 2013 (UTC)

• I added a few sentences to the intro to clarify to a novice what this article covers. It previously was more about autoclaves than about OOA. I retained the bit about autoclaves and called it "for comparison". Perhaps it should be placed in another section but there is not an appropriate one just now. SunKider (talk) 00:12, 16 January 2013 (UTC)
• Removed the "Vacuum bag only" heading. a vacuum bag only cure cannot be considered OOA because this method has never been an IN autoclave procedure. Vacuum bag only (as far as I know) is used for room temperature (or very low temp) cure. this method does not replace an autoclave cure. Neither should we include boat building with polyester resin. SunKider (talk) 00:12, 16 January 2013 (UTC)
• Removed the "Microwave curing" heading. the reference does not seem to include anything about producing high quality (autoclave quality) components. SunKider (talk) 00:12, 16 January 2013 (UTC)
• Removed several broken links listed as references. added a correct {reflist} tag to the references section. left the previous working links in place.SunKider (talk) 00:12, 16 January 2013 (UTC)

Headings - minor edits

Combined autoclave information under one heading. added a few clarifying details - mostly about the processes that produce less than autoclave quality.SunKider (talk) 23:24, 22 May 2013 (UTC)

Some Other Links

Came across this Wikipedia article after reading about a new Russian airliner:

https://www.ainonline.com/aviation-news/air-transport/2017-05-30/russias-irkut-mc-21-300-performs-first-flight

"the MC-21’s most radical advance centers on its carbon fiber wings, which take the airplane’s composite content to 30 percent. AeroComposit in Ulyanovsk, Russia, builds the wings using an out-of-autoclave resin transfer infusion process never before tried on a commercial aircraft. Both Airbus and Boeing use a more expensive process that requires an autoclave to cure their composite wings on the A350 and 787, respectively."

A more recent article in Composites World:

http://compositesmanufacturingmagazine.com/2014/08/out-of-autoclave-solutions-expand-composite-opportunities-across-market-sectors/

NASA paper on composite processes for heavy lift launch vehicles (which would need pretty big autoclaves and/or ovens): "Comparison of Autoclave and Out-of-Autoclave Composites" https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20110016095.pdf Banchang (talk) 22:00, 28 November 2017 (UTC)