Now showing items 13-32 of 39

    • Improving the quality and productivity of molded parts with a new design of conformal cooling channels for the injection molding process 

      Shayfull Zamree, Abd Rahim; Safian, Sharif; Azlan, Mohd Zain; Mohd Nasir, Mat Saad; Rozaimi, Mohd Saad (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 ...
    • Improving warpage on thin shallow parts in two-plate moulds with conformal cooling channels 

      Shayfull Zamree, Abd. Rahim; Muhammad Syahril, Bahari; Siti Aishah, Adam; Mohd. Nasir, Mat Saad; Nooraizedfiza, Zainon (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 ...
    • Improving warpage with milled groove square shape conformal cooling channels 

      Shayfull Zamree, Abd Rahim, Dr.; Safian, Sharif; Azlan Mohd, Zain; Mohd Nasir, Mat Saad; Rozaimi, Mohd Saad (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 ...
    • The influence of different mold temperature on warpage in a thin shallow injection molding process 

      Norshah Afizi, Shuaib; Muhamad Nasir, Murad; Mohd. Fathullah, Ghazli @ Ghazali; Shayfull Zamree, Abd Rahim; Muhamad Saifuldin, Abdul Manan, Dr. (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 ...
    • The influence of Rice Husk Fiber on The Properties of Epoxidized Natural Rubber/Rice Husk Compounds 

      Dahham, Omar S.; Nik Noriman, Zulkepli; Sam, Sung Ting; Marwa, Al-Samarrai N.; Shayfull Zamree, Abd Rahim; Alakrach, A.M; Abduati, Elnaid S. A. (EDP Sciences, 2016)
      In this work, curing characteristics, tensile and physical properties of epoxidized natural rubber/ rice husk (ENR-50/RH) compounds were investigated. Different RH loading (10, 20, 30, 40 and 50 Phr) and size (fine size ...
    • The Influence of Selective Laser Melting Parameters on Density and Mechanical Properties of AlSi10Mg 

      A. A., Raus; M. S., Wahab; Shayful Zamree, Abd Rahim; K., Kamarudin; M., Ibrahim (EDP Sciences, 2016)
      Selective Laser Melting (SLM) is one of the most effective powder bed technique in the additive Manufacturing (AM) which able to fabricate functional metal parts directly from 3D Computer Aided Design (CAD) file data. In ...
    • Investigation on microstructure of heat treated high manganese austenitic cast iron 

      A.K., Muzafar; M.M., Rashidi; I., Mahadzir; Shayful Zamree, Abd Rahim (EDP Sciences, 2016)
      The effect of manganese addition and annealing heat treatment on microstructure of austenitic cast irons with high manganese content (Mn-Ni-resist) were investigated. The complex relationship between the development of the ...
    • Investigation on Microstructure of Heat Treated High Manganese Austenitic Cast Iron 

      A.K., Muzafar; M. M., Rashidi; I., Mahadzir; Shayfull Zamree, Abd Rahim (EDP Sciences, 2016)
      The effect of manganese addition and annealing heat treatment on microstructure of austenitic cast irons with high manganese content (Mn-Ni-resist) were investigated. The complex relationship between the development of the ...
    • Investigation on Nylon PA66 side arms using Taguchi and ANOVA analysis in reducing cost of producing urinary catheters 

      Mohd. Fathullah, Ghazli @ Ghazali; Shayfull Zamree, Abd Rahim; Norshah Afizi, Shuaib; Mohd. Nasir, Mat Saad; Muhamad Saifuldin, Abdul Manan (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 ...
    • Milled groove square shape conformal cooling channels in injection molding process 

      Shayfull Zamree, Abd. Rahim; Safian bin Sharif, Prof. Dr.; Azlan, Mohd Zain, Dr.; Rozaimi, Mohd. Saad; Ahmad Fairuz, Mansor (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 ...
    • A new invention of alarm reminder locking (ARL) security system 

      Mohd Effendi, Muhammad Suandi; Shayfull Zamree, Abd Rahim; Mohd Sazli, Saad; Mohd Nasir, Mat Saad; Badrul Azmi, Abdul Holed (Engg Journals Publications, 2016-02-01)
      Alarm Reminder Locking (ARL) Security System mainly focuses on a door security system, which can install in the door area to increase the security level for home, office room, hostel or other places. This system used Arduino ...
    • Optimal process conditions of warpage with thin-shallow features molded with pin-point gating system 

      Mohd Fathullah, Ghazli@Ghazali; Shayfull Zamree, Abd Rahim; Norshah Afizi, Shuaib; Mohd Nasir, Mat Saad; Muhamad Saifuldin, Abdul Manan (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 ...
    • Optimisation of Shrinkage and Strength on Thick Plate Part Using Recycled LDPE Materials 

      Norshahira, Roslan; Shayfull Zamree, Abd Rahim; Abdellah El-hadj, Abdellah; Mohd Mustafa Al Bakri, Abdullah; Błoch, Katarzyna; Pietrusiewicz, Paweł; Nabiałek, Marcin; Szmidla, Janusz; Kwiatkowski, Dariusz; Correia Vasco, Joel Oliveira; Mohd Nasir, Mat Saad; Mohd Fathullah, Ghazali (MDPI AG, 2021-04-05)
      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 ...
    • Optimization of tile laying process parameters using taguchi's method 

      Norshah Afizi, Shuaib; Shayfull, Zamree Abd Rahim; Mohd. Fathullah, Ghazli @ Ghazali; Mohamad Ezral, Baharudin; Zaidi, Mohd Ripin (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 ...
    • Optimization on parameter settings in determining warpage factors of a side-gated thin shallow part injection molding for PP, ABS & PC+ABS materials 

      Norshah Afizi, Shuaib; Muhamad Nasir, Murad; Mohd. Fathullah, Ghazli @ Ghazali; Shayfull Zamree, Abd Rahim; Muhammad Syahril, Bahari (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 ...
    • Potential of conformal cooling channels in rapid heat cycle molding: a review 

      Shayfull Zamree, Abd Rahim; Safian, Sharif; Azlan, Mohd Zain; Rozaimi, Mohd Saad; Mohd Fathullah, Ghazli@ Ghazali (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 ...
    • Shrinkage analysis on thick plate part using Response Surface Methodology (RSM) 

      M. Isafiq; Shayful Zamree, Abd Rahim; ‪Mohd Nasir, Mat Saad; M., M. Rashidi; Mohd Fathullah, Ghazli @ Ghazali; Nik Noriman, Zulkepli (EDP Sciences, 2016)
      The work reported herein is about an analysis on the quality (shrinkage) on a thick plate part using Response Surface Methodology (RSM). Previous researches showed that the most influential factor affecting the shrinkage ...
    • Strength of the weld line and warpage defects on the molded parts in injection molding process 

      S. M., Nasir; Khairul Azwan, Ismail, Dr.; Shayfull Zamree, Abd Rahim; Norshah Afizi, Shuaib (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 ...
    • A study on two plate and three plate mold of ultra thin plates in minimizing warpage issue 

      Mohd. Fathullah, Ghazli @ Ghazali; Shayfull Zamree, Abd. Rahim; Sharif, S.,; Norshah Afizi, Shuaib; Mohd. Nasir, Mat Saad (Praise Worthy Prize, 2011-11)
      The demand of ultra thin plastic parts in global industries is increasing today. Ultra thin plastic parts are widely produced using injection molding processes and it is understood that warpage issue is regularly found in ...
    • Tool wear and surface evaluation in drilling fly ash geopolymer using HSS, HSS-Co, and HSS-TiN cutting tools 

      Mohd Fathullah, Ghazali; Mohd Mustafa Al Bakri, Abdullah; Shayfull Zamree, Abd Rahim; Gondro, Joanna; Pietrusiewicz, Paweł; Garus, Sebastian; Stachowiak, Tomasz; Victor Sandu, Andrei; Muhammad Faheem, Mohd Tahir; Erdi Korkmaz, Mehmet; Mohamed Syazwan, Osman (MDPI AG, 2021-03-26)
      This paper reports on the potential use of geopolymer in the drilling process, with respect to tool wear and surface roughness. The objectives of this research are to analyze the tool life of three different economy-grade ...