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Kuala Perlis, Malaysia

Khalil A.N.M.,Univerisiti Malaysia Perlis | Hamzas M.F.M.A.,University Tun Hussein Onn Malaysia | Hussin M.S.,University Putra Malaysia | Abidin Z.Z.,University Putra Malaysia | Sanuddin A.B.,University Putra Malaysia
International Review of Mechanical Engineering | Year: 2013

This paper is to investigate the tensile strength of new palm oil based wax/HDPE/Palm oil fiber blends was investigated by using 23 factorial design experiment. The palm oil based wax exhibits the potential of replacing the existing industrial blue wax which apply in prototype making. The industrial blue wax is widely used to produce part prototypes from the machining process. Hard and self-lubricating are the factors which this material are has been choosing in the industries and educational purposes. The. Hardness results has been taken to compare with the industrial blue wax. The result shows that the tensile strength of new palm oil based wax/HDPE/Palm oil fiber blend was obtained is higher compared to the existing industrial blue wax. However, since the cost of this new palm oil based wax is lower, it will be an attractive option to replace the existing industrial blue wax for prototype application. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.


Radhwan H.,University of Technology Malaysia | Khalil A.N.M.,Univerisiti Malaysia Perlis | Hamzas M.F.M.A.,University Tun Hussein Onn Malaysia
International Review of Mechanical Engineering | Year: 2014

Every plastic part that undergoes the plastic injection molding process will have the behaviour of warpage when it has cooled after injection process. It needs a proper way of controlling the rate of warpage, so it is between the accepted ranges. This paper research about a minimization on warpage defect in injection molding part of ABS (Acrylonitrile Butadiene Styrene) material by using Design of Experiment (DOE). The part chosen is from company which had a critical issue of warpage on one of the part produced. The approach of Taguchi method is applied for the optimization of process parameters selected which is the mold temperature, melt temperature, packing pressure, packing time, and cooling time. For this purpose, Moldflow Plastic Insight (MPI) software is used for the simulation of injection molding process. The number of simulation is based on the three level of L27 Taguchi Orthogonal Array (OA). The Minitab software is used to analyzed the result where the the S/N (signal-to-noise) ratio and analysis of variance (ANOVA) is utilized to see the most significant factors contribute to warpage. The confirmation test shows the best combination of process parameters using the Taguchi approach to minimize the warpage on the part. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.


Khalil A.N.,Univerisiti Malaysia Perlis | Radhwan H.,University of Technology Malaysia | Azmi A.I.,University of Auckland | Salleh H.M.,University Tun Hussein Onn Malaysia
International Review of Mechanical Engineering | Year: 2014

This paper is to compare the performance of machining characteristic of two types of composite blends: Palm Oil-based wax/ LLDPE/ Palm oil fiber and Palm Oil-based wax/ HDPE/ Palm oil fiber to industrial blue wax. Palm oil-based wax is a waste material produced from palm oil refining process. Current prototyping activities use industrial blue wax to produce part prototypes for machining processes. The results show that palm oil-based wax blends produced better machining characteristics than the existing industrial blue wax. The machinability study covered surface roughness, chip formation characteristic, dimensional consistency and cutting tool wear. The new palm oil-based wax will be an attractive alternative to the existing industrial blue wax for prototyping application due to lower cost of production. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.


Zailani Z.A.,University Malaysia Perlis | Sanuddin A.B.,University Putra Malaysia | Hussin M.S.,University Malaysia Perlis | Khalil A.N.M.,Univerisiti Malaysia Perlis | Hamzas M.F.M.A.,Univerisiti Malaysia Perlis
International Review of Mechanical Engineering | Year: 2013

Milling is widely used metal removal process in manufacturing industry that involves generation of high cutting forces and temperature. Lubricants become important in order to reduce the cutting force and temperature for better machining processes and performances. Conventional cutting fluid has some limitations. The applications of conventional cutting fluid create some techno-environmental problems like environmental pollution, biological problems to operators and water pollution. Application of solid lubricant in milling has proved to be a feasible alternative to the conventional cutting fluids. The present work investigates the effect of boric acid as solid lubricant towards machining performances such as tool wear and surface roughness. The results indicate that boric acid can improve the cutting processes and performance compared to conventional cutting fluid. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.

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