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  <titleInfo>
    <title>Optimization of multi-holes drilling toolpath using tiki-taka algorithm</title>
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  <name type="personal">
    <namePart>Norazlina Abdul Rahman</namePart>
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    <dateIssued encoding="marc">2024</dateIssued>
    <copyrightDate encoding="marc">2024</copyrightDate>
    <issuance>monographic</issuance>
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  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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  <physicalDescription>
    <extent>xiii, 114 pages : illustrations (some color) ; 30 cm + 1 CD-ROM</extent>
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  <abstract>The growth of semiconductors and computer technologies has enhanced machining  operations, especially in multi-hole drilling with multiple tools (MDMT). The MDMT  process is crucial in manufacturing for creating multiple holes of varying sizes and shapes  in a product, directly impacting product quality and cost across industries such as  aerospace, automotive, and electronics. Efficient toolpath optimization for multi-hole  drilling is essential for improving this process. However, most existing research focuses  on multi-hole drilling with a single tool (MDST), resulting in limited studies on MDMT.  Furthermore, MDMT complexity increases factorially with the number of holes, making  manual toolpath optimization impractical. Although various methods have been  proposed, most of them encounter convergence issues with MDMT due to its  combinatorial complexity. This research highlights the need for novel optimization  strategies specifically tailored to MDMT. Therefore, this research introduces the TikiTaka Algorithm (TTA) to address these challenges and optimize the toolpath for MDMT  problems. The study aims to model the MDMT toolpath using the Traveling Salesman  Problem (TSP) concept, apply TTA to optimize this model, and validate the model and  algorithm through machining experiments on this problem. The research methodology  involves problem modeling, algorithm development, and validation. The TSP concept  formulated the MDMT problem, representing holes as cities and tools as a salesman in  finding the shortest path to develop a mathematical model or fitness function. TTA was  then developed to optimize this model, inspired by the player movement in the Tiki-Taka  tactic in football. A computational experiment was conducted on 12 test problems across  small, medium, and large problem categories using the TTA, then compared with Genetic  Algorithm (GA), Particle Swarm Optimization (PSO), Ant Colony Optimization (ACO),  Crayfish Optimization Algorithm (COA), and Geometric Mean Optimizer (GMO).  Finally, the computational results were validated by machining experiments. The findings  indicate that TTA outperformed GA, PSO, ACO, COA, and GMO in 83% of the cases,  securing the shortest total toolpath distance in 10 out of 12 test problems. Machining  experiments confirmed these results, with TTA reducing machining time by an average  of 10.34% in the large category of test problems compared to GA and PSO. This  efficiency gain is especially valuable, where reduced machining time contributes to lower  production costs, less tool wear, and energy savings. These results demonstrate the  effectiveness of TTA for optimizing MDMT, showcasing its robustness across different  problem sizes. The research concludes that TTA is highly effective in addressing the  complexity of MDMT problems, with its unique exploration and exploitation phases  allowing it to explore wider solution pathways effectively. Future research should  prioritize exploring the potential of TTA for integration into automated manufacturing  processes and its applicability in maximizing efficiency advantages in other optimization  tasks.</abstract>
  <targetAudience authority="marctarget">specialized</targetAudience>
  <note type="statement of responsibility">Norazlina Binti Abdul Rahman</note>
  <note>Faculty of Manufacturing and Mechatronic Engineering Technology</note>
  <note>Thesis (Master of Science) -- Universiti Malaysia Pahang – 2024</note>
  <note>Includes bibliographical references</note>
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      <namePart>Faculty of Manufacturing and Mechatronic Engineering Technology</namePart>
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    <topic>Universities and colleges</topic>
    <topic>Dissertations</topic>
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    <topic>Theses</topic>
    <topic>Dissertations</topic>
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  <identifier type="isbn">THE0010060 (Local)</identifier>
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    <recordCreationDate encoding="marc">250514</recordCreationDate>
    <recordChangeDate encoding="iso8601">20251125111040.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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