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All Journal Jurnal Rekayasa Mesin Jurnal Teknik Industri dan Manajemen Rekayasa
Nugroho, Vinsensius Herdani Agung
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Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Optimasi Parameter Plastic Injection Molding pada Mold ID Card Holder Landscape untuk Menurunkan Cacat Sink Mark Nugroho, Vinsensius Herdani Agung; Syaifullah, Herry; Utomo, Budi Wahyu; Bawono, Baju; Anggoro, Paulus Wisnu
Jurnal Rekayasa Mesin Vol. 19 No. 2 (2024): Volume 19, Nomor 2, Agustus 2024
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v19i2.5669

Abstract

Masifnya industri pengolahan plastik mendorong perguruan tinggi vokasi untuk memberikan kompetensi kepada lulusannya menjadi mold maker. Sebagai perwujudan kompetensi terebut, mahasiswa Program Studi Pembuatan Peralatan dan Perkakas Produksi di Politeknik Astra membuat project mold ID card holder dengan format landscape berbahan Polypropylene. Tujuan pembuatan mold ini adalah sebagai alat peraga praktikum dan adanya permintaan produk yang dapat dijadikan sebagai souvenir resmi Politeknik Astra. Seiring berjalannya waktu, ID card holder yang dihasilkan memiliki cacat sink mark, deformasi dan mengalami penyusutan material sehingga ID card sangat sulit untuk masuk dan secara visual tidak layak untuk dijadikan souvenir. Penelusuran yang dilakukan menghasilkan temuan adanya kesalahan prosedur berupa trial dan error dalam proses cetak dan tidak digunakannya CAE dalam proses pembuatannya. Penelitian ini bertujuan untuk menemukan kembali kombinasi parameter optimal pada mold ID card holder landscape dengan menggunakan kombinasi Metode Taguchi dengan pendekatan GRA-PCA dan software Autodesk Moldflow Adviser Ultimate 2024 serta mendapatkan perbandingan biaya sebelum menggunakan CAE dan sesudahnya. Parameter mold temperature, melt temperature dan injection time menjadi variabel bebas dalam penelitian ini. Sedangkan sink mark estimate, volumetric shrinkage dan warpage menjadi variabel terikatnya. Kombinasi parameter mold temperature 30 °C, melt temperature 200 °C dan injection time 3,5 s memberikan respon optimal sehingga cacat sink mark maksimalnya 0,02 mm dan selisih biaya Rp8.250.000,00 lebih rendah dengan memanfaatkan CAE.
Rekomendasi peningkatan soft skill mahasiswa melalui analisis nilai akademik dan feedback dari perusahaan tempat magang Nugroho, Vinsensius Herdani Agung; Purnama, Ignatius Luddy Indra
Jurnal Teknik Industri dan Manajemen Rekayasa Vol 2 No 2 (2024)
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jtimr.v2i2.10072

Abstract

The industry's demand for skilled graduates from Diploma 3 programs is currently assessed not only in terms of hard skills but also soft skills. The ability of skilled workers to manage projects, communicate effectively, and solve problems is a crucial aspect for obtaining promotions to permanent positions within companies. Currently, in the ABC study program at XYZ Academy, soft skills are often undervalued. They are primarily assessed based on student participation in organizations, which differs significantly from the soft skills sought by the industry. This gap motivates this research to analyze the relationship between students' academic performance and feedback from companies where they intern. The study explores academic data from Semesters 1 to 5 and company feedback over the past two years regarding interns. The analysis methods include descriptive analysis, clustering, text mining, correlation analysis, and regression modeling to identify factors influencing soft skill competencies. The findings reveal several issues, such as imbalances in courses related to hard and soft skills, with 33 out of 61 students (54%) receiving poor internship evaluations and company feedback indicating the need for better preparedness in the future. Therefore, the recommended actions to enhance students' soft skills include: transforming practical courses into collaborative projects, implementing a mentoring program with industry partners prior to internships, and improving teaching quality through workshops for educators with professional practitioners
Rekomendasi peningkatan soft skill mahasiswa melalui analisis nilai akademik dan feedback dari perusahaan tempat magang Nugroho, Vinsensius Herdani Agung; Purnama, Ignatius Luddy Indra
Jurnal Teknik Industri dan Manajemen Rekayasa Vol 2 No 2 (2024)
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jtimr.v2i2.10072

Abstract

The industry's demand for skilled graduates from Diploma 3 programs is currently assessed not only in terms of hard skills but also soft skills. The ability of skilled workers to manage projects, communicate effectively, and solve problems is a crucial aspect for obtaining promotions to permanent positions within companies. Currently, in the ABC study program at XYZ Academy, soft skills are often undervalued. They are primarily assessed based on student participation in organizations, which differs significantly from the soft skills sought by the industry. This gap motivates this research to analyze the relationship between students' academic performance and feedback from companies where they intern. The study explores academic data from Semesters 1 to 5 and company feedback over the past two years regarding interns. The analysis methods include descriptive analysis, clustering, text mining, correlation analysis, and regression modeling to identify factors influencing soft skill competencies. The findings reveal several issues, such as imbalances in courses related to hard and soft skills, with 33 out of 61 students (54%) receiving poor internship evaluations and company feedback indicating the need for better preparedness in the future. Therefore, the recommended actions to enhance students' soft skills include: transforming practical courses into collaborative projects, implementing a mentoring program with industry partners prior to internships, and improving teaching quality through workshops for educators with professional practitioners
Co-Authors Baju Bawono, Baju Paulus Wisnu Anggoro Purnama, Ignatius Luddy Indra Syaifullah, Herry Utomo, Budi Wahyu