The Utilization of Locally Available Materials to Produce a Multipurpose Pneumatic Slicer
Abstract
The production of a one-size-fits-all (multipurpose) pneumatic slicer is targeted at utilizing simple materials that are readily available and cheap to procure, while slicing many chips at a single stroke. The local materials used included PVC pipes, mild steel rods, 5/3 DCV, air handling materials, stainless steel cutters, rubber tubing, and a wood base. The system was designed and fabricated according to the provisions of the International Standards Organization (ISO) 4414:2010. The required pneumatic force to achieve slices was determined to be at least 25.51 N. This force was achieved when the compressed air pressure was not less than 0.2 bar and the ISO design diameter was not more than 4.03 cm. Based on the availability of PVC schedule 40, the chosen diameter for the pneumatic cylinder was taken as 3.81 cm. The choice of mild steel rod was due to its high compressive strength, which was not exceeded by the slicing action. The slicer blade was made of stainless steel with a stress value determined as 6482 N/m². This stress value, when compared to the maximum shear of 124 MPa for stainless steel, fell within the required specification. A compact pneumatic slicer was fabricated, which, when compared with existing slicers, was cheaper and more efficient in terms of cutting time.
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