Mahindra & Mahindra, Ltd.-Karthik Govindaraj, K V Balaji, Murukesan Vimalathithan, Gandhi Samir, Ladhe Rajesh
by SAE International in United States
In this paper, mold in color diamond white ASA material has been explored for front bumper grill, fender arch extension, claddings and hinge cover applications. Other than aesthetic requirements, these parts have precise fitment requirement under sun load condition in real world usage profile. Structural durability of the design was validated by virtual engineering. Part design and material combinations with better tooling design iterations were analyzed by using mold flow analysis. Complete product performances were validated for predefined key test metrics such as structural durability, thermal aging, cold impact, scratch resistance, and weathering criteria. This part met required specification. This mold in color ASA material-based parts has various benefits such as environmentally friendly manufacturing by eliminating environmental issues of coating, easily recycled, and faster part production because intended color achieved in one step during molding. Also, it lowers overall production energy footprint, less scrap with no secondary painting, and lower final part cost by eliminating secondary operations.
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