Mohd. Nasir Mat Saad
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Preferred name
Mohd. Nasir Mat Saad
Official Name
Mohd. Nasir , Mat Saad
Alternative Name
Mat Saad, M. N.
Mat Saad, Mohd Nasir
Nasir, Saad Mohd Mat
Main Affiliation
Scopus Author ID
57202741371
54942424000
Researcher ID
AFC-7390-2022
FVT-5538-2022

Research Output

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  • Publication
    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).
  • Publication
    A study of new washing process which combines deflection and abrasion action
    (IOP Publishing, 2020)
    Mohd Fidzwan Md Amin Hamzas
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Radhwan Hussin
    ;
    Mohd. Nasir Mat Saad
    ;
    Abdellah el-hadj Abdellah
    This study aimed to determine the optimum washing of laboratory washing model that design to stimulate the active washing process and passive commercial washing machine are compared in order to determine the best washing result. Variables of the study include water speed, washing time and radial nozzle inclination angle. The rotational system of an automatic washing machine has two major technical difficulties. One is the collision of the tub against the frame at the beginning of its early spinning stage. A factor that causes such instability of the rotational object can be attributed to the deflection of the liquid inside the liquid balancer due to the unbalance mass. Proposed a new washing technology and new design of the washing machine can be as a base of its new type. These machines have better outcome data; improve quality of washing process and effective use of washing liquid. New washing machine is simple design, does not have rotary parts at all and uses active process of washing process with squeezing of linens and more productive then known washing machines. Also, this machine can recycle and feed cleaned washing liquid. Additionally, in use of ultrasonic technology of washing process, new machine today will be perfect design.
  • Publication
    Optimisation of shrinkage and strength on thick plate part using recycled ldpe materials
    ( 2021-04-01)
    Roslan N.
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Abdellah A.E.H.
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    BÅ‚och K.
    ;
    Pietrusiewicz P.
    ;
    Nabiałek M.
    ;
    Szmidla J.
    ;
    Kwiatkowski D.
    ;
    Vasco J.O.C.
    ;
    Mohd. Nasir Mat Saad
    ;
    Mohd Fathullah Ghazli@Ghazali
    Achieving good quality of products from plastic injection moulding processes is very challenging, since the process comprises many affecting parameters. Common defects such as warpage are hard to avoid, and the defective parts will eventually go to waste, leading to unnecessary costs to the manufacturer. The use of recycled material from postindustrial waste has been studied by a few researchers. However, the application of an optimisation method by which to optimise processing parameters to mould parts using recycled materials remains lacking. In this study, Response Surface Methodology (RSM) and Particle Swarm Optimisation (PSO) methods were conducted on thick plate parts moulded using virgin and recycled low-density polyethylene (LDPE) materials (100:0, 70:30, 60:40 and 50:50; virgin to recycle material ratios) to find the optimal input parameters for each of the material ratios. Shrinkage in the x and y directions increased in correlation with the recycled ratio, compared to virgin material. Meanwhile, the tensile strength of the thick plate part continued to decrease when the recycled ratio increased. R30 (70:30) had the optimum shrinkage in the x direction with respect to R0 (100:0) material where the shrinkage increased by 24.49% (RSM) and 33.20% (PSO). On the other hand, the shrinkage in the y direction for R30 material increased by 4.48% (RSM) and decreased by 2.67% (PSO), while the tensile strength of R30 (70:30) material decreased by 0.51% (RSM) and 2.68% (PSO) as compared to R0 (100:0) material. Validation tests indicated that the optimal setting of processing parameter suggested by PSO and RSM for R0 (100:0), R30 (70:30), R40 (60:40) and R50 (50:50) was less than 10%.
      2
  • Publication
    Optimisation of shrinkage and strength on thick plate part using recycled LDPE materials
    ( 2021)
    Norshahira Roslan
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Abdellah El-hadj Abdellah
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Katarzyna BÅ‚och
    ;
    Paweł Pietrusiewicz
    ;
    Marcin Nabiałek
    ;
    Janusz Szmidla
    ;
    Dariusz Kwiatkowski
    ;
    Joel Oliveira Correia Vasco
    ;
    Mohd. Nasir Mat Saad
    ;
    Mohd Fathullah Ghazli@Ghazali
    Achieving good quality of products from plastic injection moulding processes is very challenging, since the process comprises many affecting parameters. Common defects such as warpage are hard to avoid, and the defective parts will eventually go to waste, leading to unnecessary costs to the manufacturer. The use of recycled material from postindustrial waste has been studied by a few researchers. However, the application of an optimisation method by which to optimise processing parameters to mould parts using recycled materials remains lacking. In this study, Response Surface Methodology (RSM) and Particle Swarm Optimisation (PSO) methods were conducted on thick plate parts moulded using virgin and recycled low-density polyethylene (LDPE) materials (100:0, 70:30, 60:40 and 50:50; virgin to recycle material ratios) to find the optimal input parameters for each of the material ratios. Shrinkage in the x and y directions increased in correlation with the recycled ratio, compared to virgin material. Meanwhile, the tensile strength of the thick plate part continued to decrease when the recycled ratio increased. R30 (70:30) had the optimum shrinkage in the x direction with respect to R0 (100:0) material where the shrinkage increased by 24.49% (RSM) and 33.20% (PSO). On the other hand, the shrinkage in the y direction for R30 material increased by 4.48% (RSM) and decreased by 2.67% (PSO), while the tensile strength of R30 (70:30) material decreased by 0.51% (RSM) and 2.68% (PSO) as compared to R0 (100:0) material. Validation tests indicated that the optimal setting of processing parameter suggested by PSO and RSM for R0 (100:0), R30 (70:30), R40 (60:40) and R50 (50:50) was less than 10%.
      22  1
  • Publication
    Synthesis and Luminescent Properties of LiEu (0.50-x) Gd 0.50 (WO 4) 2 Sm x Red Phosphor
    ( 2018-06-12)
    Syazwanie Zailani
    ;
    Mohd Fathullah Ghazli@Ghazali
    ;
    Rosli Hussin
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Nasir Mat Saad
    Red phosphor is widely used in enhancing white light emitting diodes. Recent trends show there are several efforts in improving the efficiency of lighting particularly using Europium (III) as activators in Gadolinium tungstate phosphors. In this work, LiEu(0.50-x)Gd0.50(WO4)2Smx red phosphor was synthesized using solid-state reaction. The crystal structure, morphology and photoluminescence properties of the sample were analysed. The structure of the phosphor was found to be tetragonal with space group I41/a by characterizing the phosphor using the X-ray powder diffraction (XRPD) application. The morphologies present the angular-shaped particles. The highest emission peak occurred at 615 nm corresponding to the 5D0→7F2 transition under near-UV region. The optimum amount of Sm3+ that enhanced the intensity of the host lattice at x = 0.15 mol. The improvement on the photoluminescence properties of these phosphors without any changes on the structure and crystal symmetry shows a good potential of the red emitting phosphor to be used in the light emitting diodes (WLEDs) applications.
      19  1
  • Publication
    Design and development of a cordless screwdriver: An analysis
    ( 2021-07-21)
    Mohd. Nasir Mat Saad
    ;
    Muhamad Farizuan Rosli
    ;
    Shafeeq Ahmad Shamim Ahmad
    ;
    Wan Abdul Rahman Assyahid Wan Ibrahim
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Hashim A.H.
    ;
    Rahman A.S.A.
    ;
    Kamarul Radhi Md Zohid
    ;
    Balakrishnan V.
    The aim of this paper is to focus on some important aspects of the use of cordless screwdrivers in situations of work. Emphasizes on comfort while user uses cordless screwdriver. Descriptors of comfort in the use of hand tools have been collected from interviews. Functionality and physical interaction have been found to be the most important comfort factors in using a screwdriver. The ergonomically modified screwdriver handle provides greater operational efficiency. The findings of this research is significant in contemplating on the differences between discomfort and comfort. Cordless Screwdriver with built-in power of 3.7 kilowatts has been established. A better battery, with a voltage display, was made comfortable for consumers. In addition, the soft grip handle will allow the consumer to have a relaxed grip when using the product.
      1  32
  • Publication
    Analysis on a new design of speedy chopper using DFMA method
    ( 2021-07-21)
    Muhamad Farizuan Rosli
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Nasir Mat Saad
    ;
    Ahmad S.A.S.
    ;
    Syahril
    ;
    Naim K.
    ;
    Jauwad A.
    ;
    Shah H.
    ;
    Yageshwaren
    For this project, it is focused on redesign the original product and analysis the product which is the Speedy Chopper. The Speedy Chopper was inverted in year 2015. The chopper mainly used for chopping and preparing food in preparation of cooking. It is also used for mixing and whipping. Firstly, the objective of this project is same as the original product which are to make a tool that can chop food and vegetables, user friendly operating, to save time when chopping the food and to reduce usage of electricity. As redesign the original product is on the mechanism of the product where the original product is using the string that need to be pull several times to chop the input in the speedy chopper. So, the new design is using a rotating handle mechanism and it is reducing the quantity of the part from the original product. In addition, engineering analysis will be conducted such as the product analysis, Failure Modes and Effects Analysis (FMEA), sustainability of product and cost analysis before and after improvement of the product.
      3  18
  • Publication
    Product simplification design improvement by using DFMA method DFMA analysis on measuring tape
    ( 2021-07-21)
    Muhamad Farizuan Rosli
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Nasir Mat Saad
    ;
    Shafeeq Ahmad Shamim Ahmad
    ;
    Muhammad Harris Al-Hakeem Zuhdi Lokman
    ;
    Nursyafikah Marzuki
    ;
    Muhammad Ilham Saidi
    ;
    Nur Alia Hidayati Che Mat
    For this project, it is focused on the improving design and analysis measuring tape. Measuring tape is not a new thing to us. It is a high demand product in surveyor industry. Currently, they are a lot of measuring tape design are selling in the market. The objectives of this project are to design the measuring tape and to decrease the time to assembly the product. Besides, it also learn on to analyse the cost of manufacturing of the product. The design of measuring tape is using CAD software and then transfer to Finite Element Analysis (FEA) to analyses the capabilities of part design. At the end of this project, this research will give understanding about design using CAD software and do analysis that improved the measuring tape.
      10  4
  • Publication
    Analysis a harvesting mechanism of swiftlets nest using finite element analysis
    ( 2020-11-02)
    Rosli M.F.
    ;
    Mohd Effendi Muhammad Suandi
    ;
    Mohd. Nasir Mat Saad
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Irfan Abd Rahim
    For this project, it is focused on the harvesting swiftlets nest process to design and analysis new mechanism of harvest equipment. Industry swiftlets nest is not a new industry in Malaysia. It gets very high demand from China. Harvesting swiftlets nest is one of the processes to produce any products that made from swiftlets nest. Currently, they are using manual harvesting equipment to harvest swiftlets nest without using any auxiliary equipment. It is the first step in process flow and very important role before cleaning process. The objectives of this project are to design mechanism harvesting equipment to harvest swiftlets nest and to decrease the time of harvesting swiftlets nest process in a swiftlets house in a day. The design of harvesting equipment is using CAD software and then transfer to Finite Element Analysis (FEA) to analyses the capabilities of part design. At the end of this project, this research will give understanding about design using CAD software and do analysis that improved the harvesting equipment.
      4  29
  • Publication
    Cooling Analysis of Cylindrical Void Method for an Injection Mould in Injection Moulding Process
    ( 2020-07-01)
    Abdellah El-Hadj A.
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Nasir Mat Saad
    ;
    Tan C.L.
    As a matter of fact, the cooling method selection is one of the most important steps in the design of injection mould. However, inappropriate cooling system will result in many undesired defects such as differential shrinkage and warpage on the moulded part. From this point of view, the comprehensive study of cylindrical void method (CVM) has been attempted in this study which is known as an alternative effective cooling method. Therefore, this study employs the three-dimensional time-dependent numerical analysis to determine the performance of cooling injection moulding. Initially, a finite element method is used to solve the system of equations of the flow and heat transfer problem. Subsequently, the temperature fields and other analysis results have been obtained via ANSYS Workbench. The study reveals that the Nusselt number, Biot Number and heat flux at the fluid–core interface are smaller when the CVM method is being used compared to the straight-drilled method. These results are mainly attributed to the presence of big vortices which prevent a complete heat transfer. Consequently, the use of the CVM method does not improve the cooling efficiency, but it is a good idea and requires further investigation.
      2