PDF Publication Title:
Text from PDF Page: 016
Figure 7: Concave corner resin length in laminates made of prepreg B angle and laminate thickness. In concave parts, both the inability of the fiber bed to conform to the tool under low compaction pressure, and the consequent resin accumulation, adversely influenced the laminate dimensional uniformity. Furthermore, low compaction force also increased the likelihood of void formation. Conversely, the stiffness of fiber beds in convex corners prevented corner thinning during low-pressure processing, thus reducing thickness variation. The dataset presented above forms a benchmark against which further process modifications were evaluated. 3.2Set III - Effect of Intermediate Debulk Method Intermediate debulking can improve compaction and reduce void content in laminates by ensuring that individual prepreg plies conform to substrate layers during layup, and by allowing entrapped air pockets to escape more readily. Laminates consisting of eight plies of prepreg B were cured on both concave and convex tools, with vacuum compaction applied every two plies for 5 minutes during layup. Microscopic inspection of polished sections revealed that most of these laminates were void-free. This represented a marked improvement from laminates manufactured without intermediate debulking, which exhibited voids. DOI: 10.1002/pc.23773 16PDF Image | Vacuum Bag-Only Prepregs
PDF Search Title:
Vacuum Bag-Only PrepregsOriginal File Name Searched:
J224.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)