Shayfull Zamree Abd Rahim, Assoc. Prof. Ir. Dr.: Recent submissions
Now showing items 21-40 of 42
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Optimization of tile laying process parameters using taguchi's method
(Praise Worthy Prize, 2011-11)This paper discusses the use of the Taguchi method of experimental design in optimizing process parameters of adhesion strength between tile and mortar bed. The effects of four process parameters of force, thinset mortar ... -
Warpage analysis between straight and conformal cooling channels on thin shallow shell
(Trans Tech Publications, 2014)Warpage is a type mold defect due to non-uniform temperature variation which causes differential shrinkage rate on the moulded parts. An accurate warpage prediction is so important in helping mould designers to achieve ... -
An approach to mechanization and automation of manual construction activity
(Praise Worthy Prize S.r.l., 2011-11)Construction industry is very important to the developing country like Malaysia. Many challenges and difficulties must be faced by the developers of this particular field. Warszawski et. al [1] has reported that there are ... -
Improving the quality and productivity of molded parts with a new design of conformal cooling channels for the injection molding process
(John Wiley and Sons Inc., 2015)In materials processing, quality and productivity are notably important and must be controlled for each product type produced. In the injection molding process, quality is measured as the extent of warpage of molded parts ... -
Investigation on Nylon PA66 side arms using Taguchi and ANOVA analysis in reducing cost of producing urinary catheters
(Praise Worthy Prize, 2011-11)This article discusses on a research experience and finding based on a collaboration with a medical equipment manufacturer in producing urinary catheters. The manufacturer had been spending high cost yearly to replace more ... -
Improving warpage with milled groove square shape conformal cooling channels
(Trans Tech Publications Ltd, 2016)Warpage is a common issue in an injection moulding process due to non-uniform temperature variation causing differential shrinkage on the moulded parts. In designing moulds for injection molding process, it is very difficult ... -
Application of IDEF3 process description capture to mechanize manual tile installation
(Praise Worthy Prize, 2011-11)Integrated Definition for Function which is also known as IDEF is a well structured modeling method that corresponds to a manufacturing system. For IDEF3, it is a process description capturing method created to capture ... -
Optimal process conditions of warpage with thin-shallow features molded with pin-point gating system
(Praise Worthy Prize, 2011-11)Thin shallow plastic parts are widely produced using injection molding processes in producing varieties of components and applications. Warpage issue always happens in manufacturing thin shallow parts due to its uneven ... -
Application of RSM to optimise moulding conditions for minimizing shrinkage in thermoplastic processing
(Trans Tech Publications Ltd, 2016)This study focuses on the analysis of plastic injection moulding process simulation using Autodesk Moldflow Insight (AMI) software in order to minimize shrinkage by optimizing the process parameters. Two types of gates ... -
Fire alarm system, portable fire extinguisher and hose real system maintenances for safety purpose and requirements
(Universiti Malaysia Perlis (UniMAP), 2009-12-01)Fire Fighting system or equipments are important elements in building safety measures in order to ensure people’s safety when fire occurs. The Fire Alarm Systems deserves the highest level of care and maintenance achievable. ... -
Milled groove square shape conformal cooling channels in injection molding process
(Taylor and Francis Group, LLC., 2013-08)In designing molds for injection molding process, it is very difficult to achieve efficient cooling with uniform thermal distribution. To overcome these issues, the uses of conformal cooling channels with the uniform ... -
Improving warpage on thin shallow parts in two-plate moulds with conformal cooling channels
(Praise Worthy Prize S.r.l., 2013-03)Nowadays, the trend of consumer products designed is getting smaller and most of cover is made from plastic which was produced by using injection molding process. Thus, the demand of thin shallow plastic parts in global ... -
Strength of the weld line and warpage defects on the molded parts in injection molding process
(Praise Worthy Prize S.r.l., 2013)Strength at weld the line location and warpage problem in injection molding plastic component were not new problems in injection molding industries. Many researchers had emerged with several improvement techniques to reduce ... -
The effect of inoculation on properties of modified ductile Ni-resist alloy
(Trans Tech Publications, 2014)In this study, ductile Ni-resist alloy with a minimum 18 wt. % nickel composition was modified. Up to 12 wt. % manganese was added together with 10 wt. % nickel before undergoing the inoculation process at various percentages ... -
Warpage analysis with straight drilled and conformal cooling channels on front panel housing by using taguchi method
(Trans Tech Publications, 2014)The challenging in injection molding process is to get the uniform thermal distribution on the molded parts during the cooling stage which is mainly depend on the design of the cooling channels in injection mold. Poor ... -
Comparison between single and multi gates for minimization of warpage using taguchi method in injection molding process for ABS material
(Trans Tech Publications, 2013-12)In this study, a mold is designed in single and dual type of gate in order to investigate the deflection of warpage for thick component in injection molding process. Autodesk Moldflow Insight software was used as a medium ... -
Potential of conformal cooling channels in rapid heat cycle molding: a review
(Wiley Periodicals, Inc., 2014)Rapid heat cycle molding (RHCM) can eliminate the weld line, increase flow length, and improve surface quality of the molded parts. However, the cycle time is much longer as compared to the conventional injection-molding ... -
Optimization on parameter settings in determining warpage factors of a side-gated thin shallow part injection molding for PP, ABS & PC+ABS materials
(Praise Worthy Prize S.r.l., 2012-05)The injection molding process of thin shallow part requires several concerns in order to produce a quality output. In part of determining the best parameter settings, among other considerations that need to be taken are ... -
The influence of different mold temperature on warpage in a thin shallow injection molding process
(Praise Worthy Prize S.r.l., 2012)Every injection molding parameter have its own influence towards the quality of an injection-molded part. Temperature, pressure and time are main parameters that typically highlighted in controlling the warpage defect of ... -
Warpage analyses on thin plate in three-plate mold by Taguchi method and analysis of variance (ANOVA) for PC, ABS and PC/ABS
(Praise Worthy Prize S.r.l., 2012)Warpage is a common issue in plastic injection molding process. It can get worse for thin parts and therefore it is more challenging for product design engineers, mold designers and manufacturing engineer to cope with ...