Thongsri, Jatuporn

Loading...
Thumbnail Image
Preferred name
Thongsri, Jatuporn
Alternative Name
Thongsri, J.
Main Affiliation
Email
jatuporn.th@kmitl.ac.th

Settings

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    A Proper Lubricant for a Swage Process in a Hard Disk Drive Factory Determined by Explicit Dynamics Analysis
    (2023-01-01)
    Bubpatha, Watchara
    ;
    Pattanapichai, Sorathorn
    ;
    Thongsri, Jatuporn
    Since the hard disk drive industries continue to be highly competitive, many factories aim to reduce waste costs by developing their manufacturing process. This article presents the swage process (SP) development to join components: the head gimbal assembly with an actuator arm by explicit dynamics analysis (EDA). First, EDA was employed to determine the total deformation (δ) and equivalent (von Mises) stress (σ) after joining both components in the SP using a traditional lubricant currently used in the factory calculated by the friction coefficients. Then, the EDA results for the traditional lubricant were compared with the experimental results, and an agreement between both results was observed, confirming the EDA's credibility. Next, two additional different lubricants, including a non-lubricant as a control case, were investigated using the EDA. Finally, after comparing the EDA results for all four lubricants, the EDA results showed the proper type of lubricant, which can reduce the δ by 16.40% and σ by 9.40% compared to the traditional lubricant. Accordingly, the research findings were applied as important information for determining the best lubricant for other HDD generations to suit the SP, which can reduce waste costs from the trial and error method.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    A simulation of swage process for hard disk drive factory based on explicit dynamics analysis
    (2022-01-01)
    Bubpatha, Watchara
    ;
    Thongsri, Jatuporn
    Nowadays, the hard disk drive (HDD) industry is very competitive and focuses on enhancing the performance and capacity of HDD. To serve these purposes, HDD manufacturers prefer to increase the number of media, thus adding more head gimbal assemblies (HGAs) as well. A swage process (SP) assembles between HGAs and arm actuators into a head stack assembly (HSA). The greater the number of HGAs, the thinner it gets. Such thinness in some products, after passing the SP, there could be higher deformation and stress in arm actuators than expected values. To investigate and understand this problem. This article proposes an explicit dynamic analysis (EDA) in ANSYS software to solve the problem and simulate the SP using an actual condition from a manufacturer. The EDA provides simulation results that are consistent with the experimental results. The analytical results lead to understanding the SP's deformation, strain, and lubricant effect. Therefore, the EDS is a precise and appropriate method for developing the SP in the HDD manufacturing process.