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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Jurnal Polimesin
Meri, Andi
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Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Other

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PENGGUNAAN KOHERENSI PADA EDITORIAL TRIBUN PONTIANAK EDISI JUNI 2016 Meri, Andi; Sulissusiawan, Ahadi; Saman, Sisilya
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 6, No 11 (2017): Nopember 2017
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (498.291 KB)

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AbstractThis research is motivated by the role of coherence in building the integrity of a discourse. The problem discussed in this research is the form of relationship of appointment, relationship of addition, relationship of contradiction, and cause-effect relationship. This research aims to find the forms of coherence used in editorial discourse. The method in this research is descriptive with qualitative research. Data source in this research is editorial Tribun Pontianak Edition June 2016. The data collection technique used is documentary study technique. Data collector the used [is] writer alone and note. The result of analysis of editorial data Tribun Pontianak June 2016 contains the form of coherence in the form of relationship of appointment, relationship addition, relationship of conflict and cause-effect relationship. The relationship of coherence forms is  1137 with details of 645 relations of appointment, 379 additions relationship, 63 contradictory relationships and 50 causal relationships. Forms of coherence at is editorial of  Tribun  Pontianak Edition June 2016 playing a part in to create perfection of discourseKeywords: Koherensi, Editorial, Wacana
Investigation of the effects of fused deposition modeling process parameters on the dimensional accuracy of PLA+ using the Taguchi method Pristiansyah, Pristiansyah; Yunus, Muhammad; Meri, Andi; Afriansyah, Soni
Jurnal Polimesin Vol 23, No 6 (2025): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i6.7754

Abstract

Dimensional accuracy is a crucial aspect of 3D printing technology based on Fused Deposition Modeling (FDM), as deviations from the intended dimensions may lead to product malfunction and difficulties in component assembly. Such inaccuracies are generally influenced by various process parameters during 3D printing. This study aims to evaluate the effects of four main FDM parameters layer height, infill density, print speed, and nozzle temperature on the dimensional accuracy of printed parts using PLA+ material. The primary focus of this research is to enhance dimensional accuracy. To achieve this objective, the Taguchi design of experiments method was employed, offering a structured and efficient approach to optimizing process parameter settings while minimizing the required number of experiments. An L27 orthogonal array matrix was selected to analyze the influence of parameters at three levels. Based on the analysis of signal-to-noise (S/N) ratios and response data, the optimal parameter combination was identified as follows: layer height of 0.1 mm, infill density of 100%, print speed of 40 mm/s, and nozzle temperature of 210°C. Confirmation tests with these settings demonstrated a significant improvement in dimensional accuracy, with average measurements of 11.73 mm on the X-axis, 7.08 mm on the Y-axis, and 21.08 mm on the Z-axis. These results confirm that the selected parameter configuration is capable of ensuring dimensional stability and consistency.
Co-Authors Afriansyah, Soni Ahadi Sulissusiawan Muhammad Yunus Pristiansyah, Pristiansyah Sisilya Saman