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• W2945598452 abstract "<p>Bicycle stem is the link between handlebar (handlebar) with steerer tube (fork). Stem one of the bike parts to<br />note and Each type of bike is different for the size and specifications stemnya. This research aims to. Obtained<br />characterization of alumunium casting material as a material for making stem bikes with casting temperature of<br />700 ° C, and temperature variations of room temperature (30 ° C), 100 ° C, 150 ° C, 200 ° C, and characteristic<br />hardness values stem between piston waste material and stem. The piston waste is melted at the melting<br />furnace at a temperature of 700 ° C. then cast into the mold. After obtaining the specimen and then testing the<br />material characteristics include chemical composition, microstructure, and hardness. The result of the research<br />after casting with variation of the molded temperture has different material characteristic values, ie: chemical<br />composition which has no change before and after casting, the microt structure has little porous defect, and the<br />hardness value where the higher the mold temperature the lower the hardness . Conclusions of data processing<br />The highest value of piston recycled hardness is 93 HV when compared to the hardness of 61.2 HV stem bike<br />material, the hardness is more than enough and from the composition test there is a difference of Si 12%<br />composition. Result of micro structure at foundry with 4 variation still have defect of cast (porous and<br />shrinkage). the stam bike hardness test has an average hardness value of 64.2 HV whereas for the hardness<br />value of piston waste casting results show the hardness value of 91 HV with mold temperature 30 ° C, 93 HV<br />with mold temperture 100 ° C, 89 HV with mold temperature 150 ° C, 87 HV with mold temperature 200 ° C. The<br />higher the mold temperature, the lower the hardness of the material.</p>" @default.
• W2945598452 created "2019-05-29" @default.
• W2945598452 creator A5000492314 @default.
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• W2945598452 date "2018-07-01" @default.
• W2945598452 modified "2023-10-16" @default.
• W2945598452 title "STUDI KARAKTERISTIK MATERIAL STEM SEPEDA UNTUK PENGEMBANGAN PROTOTIPE STEM SEPEDA BERBASIS LIMBAH PISTON DENGAN VARIASI TEMPERATUR CETAKAN" @default.
• W2945598452 doi "https://doi.org/10.32832/ame.v4i2.1535" @default.
• W2945598452 hasPublicationYear "2018" @default.
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