Troubleshooter

Glass Fibers

Understanding vacuum bagging layers in production, repair

Recognizing the functions of each layer in a vacuum bag schedule can help users discover what vacuum bag schedules work best for their application.

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Glass Fibers

Real-time assessment of thermoset composites curing

The combination of material state management (MSM) software and an encapsulated sample rheometer (ESR) enables real-time cure recipe management or cure model development inside the autoclave.

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Troubleshooter

Nine factors to consider when designing composites cure tooling

Gary Bond discusses the common pitfalls and compromises when designing good cure tooling and their holistic significance for a robust composite production process.

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Proper application of semi-permanent mold release systems

Performing regular maintenance of the layup tool for successful sealing and release is required to reduce the risk of part adherence.

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Troubleshooter

The importance of resin mixing procedures in the composites shop

What is considered to be common knowledge when storing, handling, weighing, mixing and deploying epoxy resins and adhesives has brought to light the need for tighter control, improved practices.  

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Molds/Tools

Why does my composite mold leak under vacuum or applied pressure?

Louis Dorworth of Abaris Training Resources outlines key considerations to make when fabricating quality composite molds to minimize risk of leakage under pressure or vacuum.

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Infusion

Doing the twist: A look at dimensional issues in high-temperature cured laminates

When it’s not the tooling, the root cause of dimensionally inaccurate composite parts often boils down to two things: fiber form(s) used and laminate symmetry.

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Infusion

Fostering best practices for wet layup procedures

As fabricators continue to manufacture composite tools and parts using an open mold, wet layup process — often with mixed success — it’s important to stress proper preparation, materials, application methods and standardization.

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Automotive

Troubleshooting thermal design of composite battery enclosures

Materials, electrical insulation and certification are all important factors to consider when optimizing electric battery performance against potential thermal runaway.

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Troubleshooter

Alternate heat sources for hot-bonded composite repairs

Successfully using an alternate heat source for repairing composite structures requires an awareness of thermal dynamics and effective heat transfer management.

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