Design for manufacturing (DFM) in injection molding means the product design needs to meet the requirements of product manufacturing and has good manufacturability, so that the product can be manufactured with the lowest cost, the shortest time, and the highest quality. Its key is the processability analysis of design information, the evaluation of manufacturing rationality, and the suggestions for improving the design. There are many DFM considerations, but several that are especially important for injection molding: Material selection Parting Line Slider Injection gates Ejecting Draft angles Wall thickness Other issues.

To sum up, choosing different gates depends on different product and mold requirements.

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