A knit line is any line, visible or not, where two resin flows meet. Depending on the design of the mold and the material being injected, a knit line may present no problem at all, may be a cosmetic issue, or may cause a serious structural problem.
Good article. In many electromechanical assemblies, Agency requirements can matter also. A polymer may be the perfect match for the strength, finish, etc. needed for the product. However, that particular grade of polymer may not have the flame retardant properties needed to pass 94V-0 at the specified thickness in order to achieve agency certification for the entire product. It is important to also consider agency requirements up front during product development to make sure the entire product can be certified.
Most of the new 3D printers and 3D printing technologies in this crop are breaking some boundaries, whether it's build volume-per-dollar ratios, multimaterials printing techniques, or new materials types.
Independent science safety company Underwriters Laboratories is providing new guidance for manufacturers about how to follow the latest IEC standards for implementing safety features in programmable logic controllers.
Automakers are adding greater digital capabilities to their design and engineering activities to promote collaboration among staff and suppliers, input consumer feedback, shorten product development cycles, and meet evolving end-use needs.
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