Browsing by Author "fathullah@unimap.edu.my"

Now showing items 1-10 of 10

    • Classifying surface roughness for turning process with neural network 

      Roshaliza, Hamidon; Tang, Sai Hong, Dr.; Suhaila, Hussain; Mohd Fathullah, Ghazali (Universiti Malaysia Perlis (UniMAP)Institut Matematik Kejuruteraan, 2010-06-02)
      using stylus measurement technique. The drawbacks of this technique are the contact between the stylus tip and the measured surface will produce scratches and the measuring speed is slow. A new system for controlling surface ...

    • 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 ...

    • 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 ...

    • 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 ...

    • RULA and REBA assessments in computer laboratories 

      Mohd Fathullah, Ghazli@Ghazali; Mokhtar, Mat Salleh; N. Zainon; S. Zakaria; Mohd. Asyraf, Che Doi (Universiti Malaysia Perlis (UniMAP), 2009-12-01)
      Sitting static while doing office tasks or typing tasks on personal computers is frequently found to be awkward. People, especially students do not aware of the importance of sitting with correct postures while doing their ...

    • 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 ...

    • Warpage analyses on thin plate in three-plate mold by Taguchi method and analysis of variance (ANOVA) for PC, ABS and PC/ABS 

      Shayfull Zamree, Abd Rahim; Mohd. Fathullah, Ghazli @ Ghazali; Mohd. Nasir, Mat Saad; Norshah Afizi, Shuaib; Muhamad Saifuldin, Abdul Manan, Dr. (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 ...

    • Warpage analysis between straight and conformal cooling channels on thin shallow shell 

      Norshah Afizi, Shuaib; Mohd Fathullah, Ghazli@Ghazali; Shayfull Zamree, Abd. Rahim; Mohd Nasir, Mat Saad; Mohd Fidzwan, Md Amin Hamzas (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 ...

    • Warpage optimization on ultra thin plate in three plate mold for PP, ABS & ABS+PC materials by using Taguchi method 

      Mohd. Nasir, Mat Saad; Norshah Afizi, Shuaib; Shayfull Zamree, Abd. Rahim; Mohd. Fathullah, Ghazli @ Ghazali; Nooraizedfiza, Zainon (Praise Worthy Prize S.r.l., 2012-03)
      The parameters setting of process conditions in injection molding process is very importance to ensure the quality of molded components is controlled by minimizing of any defects such as warpage. Various injection parameters ...