Mohd. Hazwan Mohd. Hanid
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Preferred name
Mohd. Hazwan Mohd. Hanid
Official Name
Mohd. Hazwan, Mohd. Hanid
Alternative Name
Mohd Hanid, Mohd Hazwan
Hanid, M. H.M.
Hanid, Mohd Hazwan Mohd
Main Affiliation
Scopus Author ID
57193312815
Researcher ID
CTT-1309-2022

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Application of response surface methodology (RSM) and genetic algorithm in minimizing warpage on side arm

2017-09-26 , Raimee N.A. , Mohd Fathullah Ghazli@Ghazali , Shayfull Zamree Abd. Rahim , Mohd. Nasir Mat Saad , Mohd. Hazwan Mohd. Hanid

The plastic injection moulding process produces large numbers of parts of high quality with great accuracy and quickly. It has widely used for production of plastic part with various shapes and geometries. Side arm is one of the product using injection moulding to manufacture it. However, there are some difficulties in adjusting the parameter variables which are mould temperature, melt temperature, packing pressure, packing time and cooling time as there are warpage happen at the tip part of side arm. Therefore, the work reported herein is about minimizing warpage on side arm product by optimizing the process parameter using Response Surface Methodology (RSM) and with additional artificial intelligence (AI) method which is Genetic Algorithm (GA).

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Warpage optimisation on front panel housing using straight drilled and conformal cooling channels in injection moulding process

2018 , Mohd. Hazwan Mohd. Hanid

Nowadays, there are various optimisation methods that have been explored by researchers to determine the appropriate setting of processing parameters in the injection moulding process. Based on previous researches, the use of optimisation works has improved the quality of the moulded part produced. Apart from quality, the productivity in the injection moulding process also plays an important role. Therefore, some researchers and manufacturers have introduced the application of conformal cooling channels in injection process which have been proven to improve the quality and productivity of the moulded part due to better uniformity of temperature distribution in the mould as compared to the conventional straight drilled cooling channels. However, the application of optimisation techniques to determine an appropriate setting of processing parameters in previous researches were mainly focused on the conventional straight drilled cooling channels, whereas in conformal cooling channels is still lacking due to the difficulties in mould fabrication. In this study, the application of optimisation technique to improve the warpage on the front panel housing using the conventional straight drilled and Milled Groove Square Shape (MGSS) conformal cooling channels was explored. Simulation studies using Autodesk Moldflow Insight (AMI) 2013 software were conducted to obtain the recommended processing parameters for both types of channels. Then, by selecting cooling time, coolant temperature, packing pressure and melt temperature as the variable parameters, Design of Experiment (DOE) has been constructed using the face-centered, Central Composite Design (CCD) approach. Response Surface Methodology (RSM) was performed to develop mathematical models to employing Glowworm Swarm Optimisation (GSO) and Genetic Algorithm (GA) optimisation approaches in order to determine the appropriate setting of the processing parameters to optimise the warpage defect. Results from experimental works showed that, the performance of MGSS conformal cooling channels is remarkably improved in terms of quality and productivity compared to the straight drilled cooling channels before and after optimisation. GA offers the lowest warpage value, followed by RSM and then GSO for both types of channels. The warpage on the front panel housing was improved by 32.5% (from 0.375 mm to 0.253 mm) and 22.9% (from 0.205 mm to 0.158 mm) using straight drilled and MGSS conformal cooling channels respectively after optimisation using GA, compared to the recommended setting suggested from simulation studies. Next, it was followed by an RSM approach with the improvement of 30.7% and 22% using straight drilled and MGSS conformal cooling channels respectively as compared to the recommended setting suggested from simulation studies. Lastly, the result using GSO approach showed an improvement of 18.7% and 7.3% using straight drilled and MGSS conformal cooling channels respectively when compared to the recommended setting suggested from simulation studies. Therefore, it can be suggested that, this research provides beneficial scientific knowledge and alternative solution for plastic injection moulding industries to enhance the quality of the moulded parts produced using optimisation techniques.

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Optimisation of warpage on thin shell plastic part using response surface methodology (RSM) and glowworm swarm optimisation (GSO)

2017-09-26 , Asyirah B.N. , Shayfull Zamree Abd. Rahim , Mohd. Nasir Mat Saad , Mohd Fathullah Ghazli@Ghazali , Mohd. Hazwan Mohd. Hanid

In manufacturing a variety of parts, plastic injection moulding is widely use. The injection moulding process parameters have played important role that affects the product's quality and productivity. There are many approaches in minimising the warpage ans shrinkage such as artificial neural network, genetic algorithm, glowworm swarm optimisation and hybrid approaches are addressed. In this paper, a systematic methodology for determining a warpage and shrinkage in injection moulding process especially in thin shell plastic parts are presented. To identify the effects of the machining parameters on the warpage and shrinkage value, response surface methodology is applied. In thos study, a part of electronic night lamp are chosen as the model. Firstly, experimental design were used to determine the injection parameters on warpage for different thickness value. The software used to analyse the warpage is Autodesk Moldflow Insight (AMI) 2012.

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Optimisation of warpage on plastic injection moulding part using response surface methodology (RSM) and genetic algorithm method (GA)

2017-09-26 , Miza A.T.N.A. , Shayfull Zamree Abd. Rahim , Mohd. Nasir Mat Saad , Mohd Fathullah Ghazli@Ghazali , Mohd. Hazwan Mohd. Hanid

In this study, Computer Aided Engineering was used for injection moulding simulation. The method of Design of experiment (DOE) was utilize according to the Latin Square orthogonal array. The relationship between the injection moulding parameters and warpage were identify based on the experimental data that used. Response Surface Methodology (RSM) was used as to validate the model accuracy. Then, the RSM and GA method were combine as to examine the optimum injection moulding process parameter. Therefore the optimisation of injection moulding is largely improve and the result shown an increasing accuracy and also reliability. The propose method by combining RSM and GA method also contribute in minimising the warpage from occur.

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Shrinkage optimisation on the 3D printed part using Full Factorial Design (FFD) optimisation approach

2020 , Mohd Haidiezul Jamal Ab Hadi , Mohd. Hazwan Mohd. Hanid , Woon Soon Lee , Gunalan , Najihah, Nur Fatin , Izzul Fadhli

Quality and productivity are both important in 3D printing products and processes. However, it is quite challenging to control the quality and productivity of each product due to several parameters involved in this additive manufacturing process. Most of the parameter settings depend on trial and error techniques which consume a lot of time and material waste. Therefore, in this study, the application of optimization approach which is Full Factorial Design (FFD) approach which has been employed on 3D printed housing part made from Polylactic Acid (PLA) which were printed using Fused Deposition Modelling (FDM) 3D printer to minimize shrinkage on the 3D printed parts. Based on the optimization work, the results showed the performance of FFD approach provides a good dimensional accuracy compared to the drawing specification for the printed part. Therefore, this research provides beneficial scientific knowledge and alternative solution for the additive manufacturing process in industries application to enhance the quality of the 3D printed parts produced using FDM 3D printer machine.

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Modification of the design of circular thin-walled tubes to enhance dynamic energy absorption characteristics: experimental and finite element analysis

2020 , Masniezam Ahmad , Khairul Azwan Ismail , Mohd. Hazwan Mohd. Hanid , Fauziah Che Mat , A M Roslan

A thin-walled tube is an energy absorber device that functions to dissipate kinetic energy into another form of energy during impact. The design of thin-walled tubes is a significant factor which affects to the energy absorption characteristics. This paper provides a comparative study between the original thin-walled tube designs and several modified tube designs that have been proposed. The main objective is to improve the energy absorption characteristics, such as energy absorption capacity, initial peak load, specific energy absorption (SEA) and crush force efficiency (CFE). Throughout this research, aluminium alloy AA6061-T6 has been used as the material for all tubes. For comparison, all of the tubes are developed with a circular shape with the same diameter, thickness and length. In addition, they are also impacted at the same kinetic energy under dynamic axial loading. Validated LS-DYNA finite element (FE) models have been used to simulate the impact of the thin-walled tubes. Compared to the original tube design, the modified tubes have improved energy absorption characteristics. A conical tube with a flat end cap was identified as the best performing tube among the modified tubes because it had the lowest initial peak load, a moderate energy absorption capacity and an excellent CFE and SEA. The findings from this study can be used as a guidance in designing thin-walled structure.

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Distributor optimization: analysis via design of experiment (DOE) on perforated plate distributor in fluidized bed

2020 , Ku Mohammad Yazid Ku Ibrahim , Mohd Al-Hafiz Mohd Nawi , Mohd. Hazwan Mohd. Hanid , Nurul Fatin Najihah Abd Samat , Hazizul Hussein , Muhammad Lutfi Abd. Latif

Generally in industry, the fluidization process involves with plate distributor and used a type of perforated plate distributor as their fluidization process. In terms of observation, this type of distributor has used a large amount of energy consumption. Currently, the new design of perforated plate that involved; (i) number of slotted, (ii) slotted width, (iii) slotted length and (iv) thickness distributor has been produced and tested via Computational Fluid Dynamics (CFD). Then, the results from the simulation in each perforated plate are been extracted and analyze by using a Design of Experiment (DOE) method through full factorial design (FFD). Results from the statistical analysis have shown a significant parameter on performance of the fluidization that was assessed by pressure drop values and velocity distributions values. The results from this statistical analysis showed a significant parameter on mean tangential velocity and pressure drop. In conclusion, by using the optimization method the new design of distributor would propose less energy consumption in future fluidization application.

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Shrinkage optimisation on the 3D printed part using Full Factorial Design (FFD) optimisation approach

2020-12-18 , Mohd Haidiezul Jamal Ab Hadi , Mohd. Hazwan Mohd. Hanid , Lee W.S. , Gunalan , Najihah N.F. , Fadhli I.

Quality and productivity are both important in 3D printing products and processes. However, it is quite challenging to control the quality and productivity of each product due to several parameters involved in this additive manufacturing process. Most of the parameter settings depend on trial and error techniques which consume a lot of time and material waste. Therefore, in this study, the application of optimization approach which is Full Factorial Design (FFD) approach which has been employed on 3D printed housing part made from Polylactic Acid (PLA) which were printed using Fused Deposition Modelling (FDM) 3D printer to minimize shrinkage on the 3D printed parts. Based on the optimization work, the results showed the performance of FFD approach provides a good dimensional accuracy compared to the drawing specification for the printed part. Therefore, this research provides beneficial scientific knowledge and alternative solution for the additive manufacturing process in industries application to enhance the quality of the 3D printed parts produced using FDM 3D printer machine.

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FEA: Automatic air freshener dispenser

2021-05-03 , Mohd. Hazwan Mohd. Hanid , Muhamad Farizuan Rosli , Rahman W. , Radhwan Hussin , Ahmad S.A.S. , Khairunnisa Norli , Ndrieniza Anak Saini , Nur Afifah Mazlan , Nuruljannah Omar

This research focused on the redesign the main body of automatic air freshener dispenser. Automatic air freshener dispenser used for spraying fragrance automatically according to the setting provided. This type of air freshener no need to spray manually, labor saving and more convenient. This automatically air freshener dispenser will automatically spray the fragrance into the whole room space to purify air and remove smelly odor. Other than that, the objectives of this mini project are to redesign the main body of the automatic air freshener dispenser. The design of the automatic air freshener dispenser is using CAD software which is CATIA and then transfer to Finite Element Analysis (FEA) to analyses the capabilities of part design. At the end of this paper, this research will give understanding about design using CATIA Software and do analysis that improved the redesign body of the automatic air freshener dispenser.

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Effects of Cutouts on Energy Absorption Characteristics of Thin-walled Tube Impacted under Dynamic Loading

2022-12 , M. H. Zikri , M. Ahmad , Muhamad Nur Misbah , Wan Mohd Faizal Wan Nik , Mohd Al-Hafiz Mohd Nawi , Mohd Haidiezul Jamal Ab Hadi , Mohd. Hazwan Mohd. Hanid

A thin-walled tube is an energy absorber device that is commonly used in automotive and locomotive applications. The function of this element is to convert the kinetic energy into other forms of energy during a collision that can minimize injuries to the passengers. Therefore, various studies have been reported previously to improve the thin-walled structure to decrease the damage and provide protection for the vehicle and occupant. This study aims to determine the effects of the cutout on the thin-walled tube when impacted under dynamic axial loading. The effects of sizes, shapes, locations, and the number of cutouts on the energy absorption characteristics have been analyzed by using the validated finite element model. The result indicates that a circular tube with a square cutout shape, larger cutout sizes, and near the top-end of the tube has more energy absorption characteristics. Furthermore, the results of energy absorption (EA), crush force efficiency (CFE), and specific energy absorption (SEA) are highest when applying four cutouts on the surface of the thin-walled tube. Research information provided in this study will serve as a guide in designing the cutout thin-walled tube for crashworthiness enhancements in the future.

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