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Designed for longer life in aluminum, this bit is made from solid carbide and designed to utilize a shear cutting action to provide a smooth cut. This design will also decrease the build up of material on the cutting edge. The spiral flute outperforms traditional o-flute straight bits by providing the absolute best cut and superior chip ejection.

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The best bit for plastic projects, made from solid carbide and designed to utilize a shear cutting action to provide a smooth cut. This design will... View full product details

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The best bit for plastic projects, made from solid carbide and designed to utilize a shear cutting action to provide a smooth cut. This design will... View full product details

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Delamination is the most prevalent life-limiting failure mode in advanced composite structures and is a fundamental issue in their evaluation for both durability and damage tolerance. Consequently, the attainment of improved delamination resistance and, in turn, more damage tolerant composite structures has been a major goal of a significant number of materials development activities. One approach to more delamination resistant composites is a laminate construction concept in which materials are utilized in a composite construction that is tailored for maximum resistance to interlaminar forces. The double cantilever beam (DCB) test was used as a convenient method for evaluating and ranking the Mode I delamination resistance of these construction concepts since the interlaminar crack growth region of the test coupon could easily be altered and characterized as to its influence on Mode I delamination behavior. Hercules' AS1/3502 graphite/epoxy was chosen as a baseline material and the construction of the interlaminar crack growth region in the mid-plane of the laminate was varied using inner-layer materials that have previously demonstrated the potential for resisting matrix crack growth—a rubber toughened epoxy adhesive, organic fiber mats, and glass fiber mat and scrim. Resultant laminates were characterized as to their Mode I behavior using the DCB test and were also subjected to compression testing. Fractured surfaces were examined with a scanning electron microscope (SEM). Results show that significant improvements in delamination resistance can be achieved by specifically tailoring the construction of the laminate.

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The best bit for plastic projects, made from solid carbide and designed to utilize a shear cutting action to provide a smooth cut. This design will... View full product details

The best bit for plastic projects, made from solid carbide and designed to utilize a shear cutting action to provide a smooth cut. This design will... View full product details

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