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Journal : Jurnal Ilmiah Poli Rekayasa

Analisis Teknis Sudut Mata Pisau Terhadap Proses Pencacahan Tandan Kosong Sawit

POLI REKAYASA Vol 2, No 1 (2006)
Publisher : POLI REKAYASA

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Abstract

Bunch empy falm (TKS) is dust of fabrics palm oil, need handle seriussely, because of total relatif big and every year increase. This research objective is structures identification and phisic character TKS force analysis and sfecific cut energy and technic evaluation mchine of counter TKS with use meansurenment cutter specement. Structur identifition with eah sample are 15 spcies, weight 1,0 kg – 8,2. Cutting proces used variate edge angle (ANE) 250, 300,350, shear angle (SA) 00, 150, 300, and abligue angle (ANO) 200, 300, 400, Result of strukture identification TKS are 35,80 % bucnh 57,40 % sipkelet, and 6,80 not yet breaking loctly bucnh an center 73,9 % midel 78,8 %, and 17,66 %. Result of measurenment specific force cutting (GPS) and energi cutting (EPS) minimum bucnh 38,51 N/cm2 and 0,3 N/cm2 , on spikelet minimum GPS 135 N/cm2, minimum EPS 0,989 N/cm2, with used ANE 250, ANO 00, and SA 0o.

Rancang Bangun Mesin Tempa Sistem Spring Hammer Untuk Peningkatan Kwalitas dan Produktivitas Logam Tempa Pada Industri Kecil Pandai Besi

POLI REKAYASA Vol 8, No 2 (2013)
Publisher : POLI REKAYASA

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Abstract

Forging is a metal processing with state of deformation in the heat with a blow system. Some of the products produced by the industry wrought blacksmith like machetes, knives, hoes, Dodos, tools, household, agricultural, and equipment for agriculture and plantations. In general, the blacksmith business production is very limited and do not meet all the required quality standards, it is constrained in the process of forging forging products are still done manually with hammer blows repeatedly driven by hand. The purpose of this research is the design of machinery forging hammer spring system that works mechanically. With this engine the forging process becomes easier, production and product quality small blacksmith forging industry can be improved. From the results of the activities that have been implemented resulting machine forging hammer spring system with a size of 1.9 x 0.9 x 0.9 (m) by using a hammer tap mechanically driven by electric motors. The resulting machine uses 2 HP electric motor, using a flywheel as an addition to the pressure at the hammer presses the workpiece, and the clutch as successor breaker round, and spring hammer spring as conductor of the pressure fluctuation. So the use of the components of the flywheel and this springs capability of forging machine in one hit can reduce the depth of the workpiece to 2-3 mm, and the resulting number of strokes ± 200-250 blows / min.