Noorhafiza Muhammad
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Preferred name
Noorhafiza Muhammad
Official Name
Noorhafiza, Muhammad
Alternative Name
Muhammad, N.
Muhammad, Noorhafiza
Muhammad, Noorhafiza Binti
Muhamad, N.
Main Affiliation
Scopus Author ID
36473624500
Researcher ID
D-8515-2015

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  • Publication
    Experimental study on laser welding dissimilar materials
    ( 2021-07-21)
    Noorhafiza Muhammad
    ;
    Yap How Hean
    ;
    Mohd Shuhidan Saleh
    ;
    Midhat Nabil Ahmad Salimi
    ;
    Mohd Fathullah Ghazli@Ghazali
    ;
    Muhamad Farizuan Rosli
    Laser welding on dissimilar materials is widely used and has significance application in industry. Laser welding is the one of the method which can offer high strength of joint especially for joining of dissimilar metals contrast to conventional method. Conventional welding more often had an insufficient penetration depth and a wider heat affected zone which prompts to reduce joint quality. This work exhibits a weld possibility on low carbon steel and high carbon steel surface utilizing low power fiber laser in pulse wave modes. The objective of this research work is to investigate the influence of laser welding parameters of welding speed and pulse width on weld geometry of the welded metal. The parameters used is the welding speed (1.67 mm/s to 8.33mm/s) and pulse width (3 ms to 5 ms). The optimum weld geometry was with the largest aspect ratio (1.42) with parameter of welding speed (1.67 mm/s) and pulse width (3.0 ms). As conclusion, appropriate utilization of parameters can improve the quality of weld joints and durability of products.
      1  13
  • Publication
    Analysis of sugarcane juice extractor mechanism
    ( 2023-04-24)
    Ibrahim W.A.R.A.W.
    ;
    Muhamad Farizuan Rosli
    ;
    Mohd Effendi Muhammad Suandi
    ;
    Noorhafiza Muhammad
    ;
    Rosli N.H.
    ;
    Hadi N.H.A.A.
    ;
    Ayasing I.M.
    ;
    Aznan S.N.
    This paper presents an analysis of the mechanism of gears and belt system of Small Sugarcane Juice Extractor machines. The existing design of sugarcane extractor consists of two rollers with the pulley system connected by V-belts. The power generated by the motor will be transmitted from the wheel to the gears and finally the rotating shaft. The rollers will tear then press the sugarcane to extract the juices. The need for the mechanism analysis is necessary to obtain information on existing design for future development of a new version of extractor machine. This is due to currently available sugarcane juice extractors requiring high energy to power bulk and heavy roller mills that are mechanically driven. The analysis is focused on gears, belt and roller as well as the weakness, advantages and disadvantages of the existing extractor.
      1
  • Publication
    DFMA method: Analysis on a mechanical sharpener
    ( 2021-07-21)
    Muhamad Farizuan Rosli
    ;
    Noorhafiza Muhammad
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Nasir Mat Saad
    ;
    Mohd Fathullah Ghazli@Ghazali
    ;
    Shafeeq Ahmad Shamim Ahmad
    Creativity and innovation in any organization are vital to its successful performance. Innovate a product have to consists of many different process of design. The flow of design such as identifying the problem of the product, determining the objective of the research, identifying the customer needs, undergoing survey and analysis data to get the list of metrics. Besides that, house of quality and concept generation will help the research to get know whether the design is full fill the customer needs or not. Concept testing will help to identify the final concept selection. Modelling of the final concept can help to show the target marketing to give their own response on this research. Customer needs can help to make the product undergo further improvement.
      1
  • Publication
    Design and development of fire escape window grille keyless locking system
    ( 2021-07-21)
    Mohd Shuhidan Saleh
    ;
    Yee N.K.
    ;
    Noorhafiza Muhammad
    ;
    Muhamad Farizuan Rosli
    ;
    Mohd Fathullah Ghazli@Ghazali
    ;
    Norshah Afizi Shuaib
    The most fire-related fatalities are due to the smoke inhalation of the toxic gases. It is related to the victims being trapped in the building when the building was on fire. It was also reported that major deaths from fire related are from the toxic gases inhalation produced by the fire while the deaths due to fire flames and burning was about one third of the total deaths. The access to the exit door was blocked and they could not exit through the window due to the permanent grille installation. It was well aware that most Malaysian homeowners installed grilles on their house windows or doors for security reason since there are lots of break-ins incidences. To overcome the issue, this work introduces a window grille with keyless locking system. The design incorporated keyless system that can be operated or opened without a key. Several designs for implementing this solution have been described. These designs are divided into three sections, which is a grille design, expansion designs which use to accommodate a wide range of window-sized and keyless locking systems. The size and type of grille suitable for Malaysian residents as well as the more efficient keyless locking system has been studied in detail using the method of case study and survey method. Step of patent research, market analysis and benchmarking are used as methods for collecting reference data. The most effective fire escape window grille keyless locking system has been studied and designed from this project. An important factor in designing a fire window grille is the design that can be opened and does not require a key operation. The results of the design and analysis tested are presented such that they can be used as an aid to the design of fire escape features.
      1  13
  • Publication
    Design and development of fire escape window grille keyless locking system
    ( 2021-07-21)
    Mohd Shuhidan Saleh
    ;
    Ng Kuan Yee
    ;
    Noorhafiza Muhammad
    ;
    Muhamad Farizuan Rosli
    ;
    Mohd Fathullah Ghazli@Ghazali
    ;
    Norshah Afizi Shuaib
    The most fire-related fatalities are due to the smoke inhalation of the toxic gases. It is related to the victims being trapped in the building when the building was on fire. It was also reported that major deaths from fire related are from the toxic gases inhalation produced by the fire while the deaths due to fire flames and burning was about one third of the total deaths. The access to the exit door was blocked and they could not exit through the window due to the permanent grille installation. It was well aware that most Malaysian homeowners installed grilles on their house windows or doors for security reason since there are lots of break-ins incidences. To overcome the issue, this work introduces a window grille with keyless locking system. The design incorporated keyless system that can be operated or opened without a key. Several designs for implementing this solution have been described. These designs are divided into three sections, which is a grille design, expansion designs which use to accommodate a wide range of window-sized and keyless locking systems. The size and type of grille suitable for Malaysian residents as well as the more efficient keyless locking system has been studied in detail using the method of case study and survey method. Step of patent research, market analysis and benchmarking are used as methods for collecting reference data. The most effective fire escape window grille keyless locking system has been studied and designed from this project. An important factor in designing a fire window grille is the design that can be opened and does not require a key operation. The results of the design and analysis tested are presented such that they can be used as an aid to the design of fire escape features.
      3  3
  • Publication
    Survey on customer needs of wheelchair design for big size patient
    ( 2023-04-24)
    Ibrahim W.A.R.A.W.
    ;
    Muhamad Farizuan Rosli
    ;
    Mohd Effendi Muhammad Suandi
    ;
    Noorhafiza Muhammad
    ;
    Sung C.
    This paper presents a survey on customer needs on wheelchair design for big size patient weight maximum up to 150kg. As more patients who are overweight are admitted to hospitals, critical care nursing care become more important. In order to design new type of wheelchair for big size patient, customer's needs requirements are very important in early development process. It firmly identified with idea age, idea choice, aggressive benchmarking and foundation of item determinations. The data obtained from this survey is very useful for designer in designing of new type wheelchair for big size patient, which currently not available or very difficult to find in the market.
      1