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Assagaf, Idrus
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Journal : JURNAL POLI-TEKNOLOGI

 1 
KONTROL SUHU MESIN VACUUM FORMING OTOMATIS ANEKA BENTUK KEMASAN DENGAN HMI Sonki Prasetya; Hasvienda M. Ridlwan; Muslimin Muslimin; Sugeng Mulyono; Idrus Assagaf
Jurnal Poli-Teknologi Vol. 17 No. 3 (2018)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v17i3.1268

Abstract

ABSTRACTFood industries in a country depend on the packaging system to preserve the product commonly use the plastic based material. Generally, commercial plastic type for packaging in Indonesia are Polystirine (PS) and Polyvinyl Chlorida (PVC). One of problem in home industries (UKM) especially in food sectoris to find the appropriateand particular packaging for their food products. Vacuum Thermoforming machines commonly used by industries to provide the packaging product. However, the forms and materials for the product are too general. In order to provide specific forms for definite products, small-scale vacuum forming machines produced by other countries can be found in the market. Nevertheless, the price still considered high for a home industrial entrepreneur. This study investigates the appropriate automatic control system for the designed small-scale industrial vacuum forming. The control decision achieved via a software based on LabView through a laptop. Thus, it can be displayed, monitored and also being recorded continuously. The test shows that the heater stable at 20 minutes meanwhile the plastic sheet can be shapedafter 15 minutes heating process.Keywords: Plastic, vacuum forming, home industry, automatic.ABSTRAKIndustri makanan yang jumlahnya cukup besar di Indonesia tidak dapat lepas dari proses pengemasan terutama penggunaan kemasan plastik. Jenis plastik yang banyak digunakan untuk kemasan makanan adalah Polystirine (PS)dan Polyvinyl Chlorida (PVC) yang umumnya dijual bebas di pasar/ toko dengan ukuran yang sudah spesifik. Masalah yang banyak dihadapi oleh industrik kecil menengah (UKM) umumnya adalah kesulitan dalam penggunaan kemasan yang sesuai baik ukuran maupun bentuk dari produknya. Mesin Vacuum Thermoforming seperti yang dimiliki oleh industri untuk produk kemasan umumnya memiliki skala yang besar dan memiliki jenis serta bentuk standar. Sementara mesin dalam skala kecil masih dirasa cukup mahal dari segi biaya karena produk dari negara luar. Karenanya mesin Vacuum Forming otomatis skala UKM dengan biaya yang ekonomis ini sangat penting. Penelitian ini ditujukan untuk melakukan otomatisasi dari karakter pemanas yang digunakan dengan mempertimbangkan posisi optimal agar dicapai unjuk kerja yang optimal dari system yang sudah dibuat. Keputusan dari pengendalian alat dilakukan menggunakan software LabView melalui laptop. Oleh sebab it, data dapat ditampilkan, dimonitor serta disimpan secara langsung dan terus-menerus. Hasil uji fungsi menunjukkan bahwa pemanas bekerja dengan stabil setelah 20 menit sedangkan obyek plastik dapat dibentuk setelah dipanaskan selama 15 menit.Kata kunci: Plastik,,Vacuum Forming, UKM, otomatis.
ANALISA KEKUATAN WELDING REPAIR BAJA AISI 420 DENGAN METODA GMAW Cecep Slamet Abadi; Rosidi Rosidi; Idrus Assagaf
Jurnal Poli-Teknologi Vol. 18 No. 3 (2019)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v18i3.2396

Abstract

Welding technology is used because besides being easy to use, it can also reduce costs so it is cheaper. Especially for welding repair. From the welding repair the extent to which the strength of GMAW welds can repair components from the molded plastic mold room made of AISI 420 stainless steel. Repair of the print room components using deposit welding is tested using tensile strength and hardness as realization of resistance when holding the rate of liquid plastic entering the print room by 25 to 40 MPa, depending on the plastic viscosity, the precision of the mold and the filling level of the print room. Deposition welding method as a welding repair can affect a procedure to be able to produce a component that is safe and capable of being used in accordance with the provisions. The welding process used is reverse polarity GMAW DC with 125 A current and ER 70 S welding wire diameter 1.2 mm. Test material AISI 420. Tests carried out were tensile test, impact test and hardness test in weld metal, HAZ and base metal. From the Charpy impact test and tensile test obtained the value of welding strength which is close to the strength of the complete object, which is equal to 65%. The energy absorbed by the impact test object with GMAW welding is 5.4 Joule while for the whole test object is 8.1 Joule. The welding tensile strength is 520 MPa compared to the tensile tensile strength of 820 MPa.
Co-Authors Abdillah, Abdul Azis Agus Sukandi Asep Apriana, Asep Aziz, Kholid Abdul Bahrul Ulum Cecep Slamet Abadi Dedi Junaedi, Dedi Edistria, Ega Fahrizal, Rendi Imam Ga, Jonri Lomi Hasvienda M. Ridlwan Immanuel, Ericsson Jannus, Parulian Kamil, Raihan Kusuma, Alam Jaya Muslimin Muslimin Nugroho Nugroho, Muhammad Fadhil Permana, Yandi Dwi Rahmiati, Tia Rahmiati, Tia Rosidi Rosidi Samsul Arifin Setiawan, Riyanto Sonki Prasetya Sonki Prasetya Sugeng Mulyono Wiyanto, Ardi