Design and manufacturing of souvenir products using centrifugal rubber mold casting

Aman, Muhammad Hafiz Hafiezi (2025) Design and manufacturing of souvenir products using centrifugal rubber mold casting. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Souvenirs are typically small items given, kept, or bought as mementos or reminders of a place visited. Centrifugal Rubber Mold Casting, CRMC is a casting method used to produce souvenirs or other items in precise and consistent forms. This method requires careful consideration of rotation speed parameters to ensure successful casting the complex design product. This research aims to create and analyzed complex souvenir keychain products that been selected as the study products and using the centrifugal rubber mold casting method with acrylic laser-cut master models. The casting parameters investigated included varying rotation speeds from 750 to 450 rpm, a spin time of 20 seconds, a pressure of 40 psi, and clockwise rotation (CW). Based on the results of the centrifugal rubber mold casting process, the optimal rotation speeds were determined to be 750 and 700 rpm, resulting in 100% successful cast product production. Parameters other than rotation speed were also considered to optimize the process such as the addition of runners and gates in the silicone rubber mold. The comparison of successful cast product percentages based on different base shapes revealed that each shape which are Gear based shape (KD1), Hole Gear based shape (KD2), Square based shape (KD3) and Rectangle based shape (KD4) will requires different optimal casting rotation speed. The optimal rotation speeds were found to be 700 rpm for Gear-shape (KD1) and Hole Gear-shape (KD2), 650 rpm for Square-shape (KD3), and 500 rpm for Rectangle-shape (KD4).

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