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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Jurnal Pengkajian dan Pengembangan Teknologi Pertanian At-Taqaddum Jurnal Rekayasa Mesin Isamic Communication Journal BERITA BIOLOGI Jurnal Ilmu Dakwah YARSI Medical Journal Jurnal Teknik Mesin Cakram Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Meyarsa:Jurnal Ilmu Komunikasi dan Dakwah JIPTEK Research Horizon Jurnal Studi Manajemen Bisnis Oftalmologi: Jurnal Kesehatan Mata Indonesia Psychospiritual: Journal of Trends in Islamic Psychological Research Jurmas: Jurnal Pengabdian Masyarakat
Abdul Choliq
Staf Peneliti pada Balai Pengkajian Teknologi Pertanian (BPTP) Ambon
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Journal : jiptek

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Perancangan Mesin Roll Pipa Diameter 3/4 Inch Dengan Variasi Ketebalan Pipa Aji, Ari Budi Prastya; Rohmat, Nur; Choliq, Abdul; Setiyono, Endro
Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK) Vol. 5 No. 1 (2023): Jurnal Inovasi Ilmu Pengetahuan dan Teknologi
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jiptek.v5i1.35735

Abstract

Pengerolan pipa pada masyarakat secara umum masih menggunakan sistem manual, yang memiliki beberapa kelemahan diantaranya: hasil lingkaran yang bervariasi, lamanya proses pengerolan, dan banyak membutuhkan tenaga kerja. Penelitian ini bertujuan untuk merancang mesin rol pipa agar mempermudah proses pengerolan dan mempermudah dalam pengoprasiannya. Mesin rol pipa terdiri dari rangka, motor listrik, gear box, kopling tetap, dongkrak hidrolik dan komponen lainya. Salah satu komponen yang sangat penting dan menentukan hasil dari produksi pada mesin pengerol ini yaitu roll dies. Langkah dalam merancang roll dies adalah dengan menetukan ukuran bahan besi yang akan dikerjakan, mulai dari membuat rancangan roll dies dengan ukuran pipa ¾ inch, dengan diameter 70 mm,   panjang 50 mm, dengan menggunakan bahan besi baja S45C. Luas penampang total pipa dengan ketebalan; 0, 8 mm = 23, 36 mm2 , ketebalan 1 mm 29, 04 mm2, ketebalan 1,  2 mm. Besar momen inersia pipa yang bervariasi diantaranya yaitu, 0.8 mm, 1010, 74 mm4, ketebalan pipa 1 mm 1243, 49 mm4 dan ketebalan pipa 1, 2 mm 1468, 60 mm4. Berdasarkan analisa laboratorium atau pengujian, turbin uap pada saat di operasikan putarannya terus naik dan tidak terkendali (over speed) sehingga menyebabkan overload, terjadi patah akibat beban impak/berlebih.
Analisa Hasil Pengelasan Oxi-Acetylene Dengan Kawat Las Tembaga dan Borak Pada Baja ST 37 Saputra, Aldi Maulana; Choliq, Abdul
Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK) Vol. 5 No. 2 (2024): Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/JIPT.v5i2.39794

Abstract

The use of bicycles in Indonesia has experienced significant growth as part of a lifestyle and sport. Bicycle frame materials have undergone several innovations from steel, aluminum, carbon fiber and even wood. Old bicycles have chromoly steel and high tensile steel frame materials. For reasons of convenience and hobby, many old bicycles are still cared for and used by bicycle hobbyists even though they need repair due to corrosion. Welding a frame with holes or breaks often becomes a problem, especially in determining the welding technique, type of welding and additional metal used. This research aims to determine the effect of mixing borax in welding additives on the tensile strength and hardness values ​​after welding using the oxy-acetylene method and copper and brass additives. The specimen is ST 37 steel, 200mm long, 20mm wide and 10mm thick. V-beam connection model with a 60⁰ angle. The resulting welds are tensile tested using the ASTM E-8 test standard. During the steel welding process, it was found that the additional metal in the form of copper without a mixture of borax was difficult to fuse with the base metal. However, if the copper is mixed with borax by dipping the copper tip before welding, it will be easier to fuse. The results of the hardness test showed that welded samples without borax had a lower tensile strength value compared to samples with metal added copper or brass with the addition of borax, namely 48.3 N/mm2 compared to 78.3 N/mm2. The hardness test results show that oxy-acetylene welding with added copper is 230HV, while welding with the addition of borax is lower, namely 160HV. Thus, it is concluded that for welding bicycle frames made of steel, it is best to use oxy-acetylene welding, because the fire produced is not too big and using additional copper or brass materials by adding borax to the additional metal.
Co-Authors Agus Hermawan Ahmad Anas Aji, Ari Budi Prastya Alamsyah, Muhammad Surya Bakti Aldi, Muhamad Alisyifa, Hidayah Danu Andri Lesmana Ariandha, Verony Ashari, Muhamad Ihsan Avianty, Astri Awaludin Pimay D. A, Forita Dianto, Muhammad Isro Dita Kusuma Wardani Fauzi, Adi Rizki Fauzi, Ryan Achmad Fitrianto, Muhamad Nur Forita Dyah Arianti, Forita Dyah Herman Hidayati, Nurul Aini Indrie Ambarsari Jauhari, Minan Kertati Sumekar Khusniati, Tatik Khusniati, Tatik Kurniawan, Catur Mamik Indaryani MARIA BINTANG Mohammad Ali Al Humaidy Munib, Abd Nanta, Dhea Loka Nasrun, Mohamad Nur Rohmat Prihantini, Nur Nunu Rusmaji, Rusmaji Saputra, Aldi Maulana Saraswati, Dahniar Sarjana Sarjana Setiyono, Endro Sidkin Ali, Muhammad Sulistiani Sulistiani, Sulistiani Syamsul Bahri Tanusantoso, Gabriela