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All Journal Jurnal Energi Dan Manufaktur TEKNIK Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Jurnal Teknik Mesin Indonesia Mekanika: Majalah Ilmiah Mekanika SEMAR Jurnal PADAMU NEGERI (Pengabdian pada Masyarakat Bidang Eksakta)
Heru Sukanto
Program Studi Teknik Mesin, Fakultas Teknik Universitas Sebelas Maret
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation

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Pengaruh pre-strain dan tegangan listrik terhadap sifat fisik mekanik dan korosi sambungan las titik (RSW) logam beda jenis antara AISI 430 dan JSL AUS (J1) Arief Ari Kuntoro; Triyono .; Heru Sukanto
Jurnal Teknik Mesin Indonesia Vol 12 No 2 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1009.29 KB) | DOI: 10.36289/jtmi.v12i2.74

Abstract

Distortion often occurs in thin plate welding process. Pre-strain is ussualy choosen for repairing those failure. Pre-strain is the method which stretchs and holds the material before welding process. The main objective of this research is to investigate the effect of pre-strain and voltage on corrosion, physic and mechanics properties of dissimilar metals spot welded between AISI 430 and J1. Variation of pre-strain treatment is (0%; 0.2%; 0.5%; 1%) and voltage is (1.60V; 1.79V; 2.02V; 2.30V). Electrode pressure force is 500N. NaCl 3.5% solution is used for potentiodynamic polarization corrosion test. As a result of the experiment showed that nugget size enlarge with increasing voltage which cause pullout failure mode. Nugget size decrease after pre-strain was applied to the specimen and makes interfacial failure mode. Variation of pre-strain at 1% and voltage at 2.30V had the highest corrosion rate of 0.0497 mm/y. Pitting corrosion is the corrosion which occurs in the specimen. Pitting corrosion occurs due to overheating when welding with pre-strain treatment cause the protective oxide passive film layer from AISI 430 was damaged.
Pengaruh jenis proses pemotongan pada mesin milling terhadap getaran dan kekasaran permukaan dengan material aluminium 6061 Okky Nugra Retyawan; Indri Yaningsih; Heru Sukanto
Jurnal Teknik Mesin Indonesia Vol 12 No 1 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (404.21 KB) | DOI: 10.36289/jtmi.v12i1.63

Abstract

This research was aims to determine the effect of the cutting process type on a milling machine to vibration and surface roughness of the aluminum 6061. The specimens were made using a cutting process type face milling, profile milling, pocket milling, slot milling and drilling. Surface roughness data retrieval is done on any type of cutting process using a surface roughness tester and vibration data was taken during a cutting process on any cutting process type using a vibration meter. The results showed the value of surface roughness and vibration in face milling of 0,5368 μm and 1,03 m/s², profile milling of 1,0984 μm and 1,49 m/s², pocket milling of 1,1004 μm and 1,73 m/s², slot milling of 1,4888 μm and 2,44 m/s² and drilling of 1,9944 μm and 18,62 m/s². Cutting process type on a milling machine having an influence on the vibrations and surface roughness. Each cutting process type has a different cutting force. The greater the cutting force that occurs in every cutting process type, the greater the value of the vibration and the surface roughness happened.
Pengaruh waktu pengepresan terhadap sifat mekanik komposit kenaf / polypropylene Sahid Bayu Setiajit; Heru Sukanto; Wijang Wisnu Raharjo
Jurnal Teknik Mesin Indonesia Vol 11 No 2 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (823.687 KB) | DOI: 10.36289/jtmi.v11i2.60

Abstract

Natural fiber composite is the one of eco friendly composite. Natural fiber such as jute, banana,rosella, rami and kenaf are able tobe a good reinforcement material for thermoset or thermoplast composite. Composit using natural fiber reinforcement can be upgraded by adding more pressing time in the forming process. The aim of this research is to investigate the influence of pressing time adding variation towards mechanical properties of mat composite of kenaf- PP fiber. Mat composite of kenaf- PP fiber is processed by using simple hot press method. The temperature used in the pressing process is 180 0C with 7bar of pressure. The variation of pressing time are 5, 10, 15, 20,25 minutes. Mechanical properties that have been tested are tensile, bending, impact and density. The facture of the composite is observed using scanning electron microscopy (SEM). The 25 minutes pressing time variation resulting the bending and tensile strength of mat composite of kenaf- PP fiber respectively : 39,37 MPa and 25,27 Mpa. The highest impact strength is 20,25 kJ/m2 from 5 minutes of variation of pressing time.
Studi implementasi cad/cam pada proses milling cnc terhadap kekasaran permukaan dan tingkat kepresisian aluminium 6061 Risdiyanto Edy Saputro; Indri Yaningsih; Heru Sukanto
Jurnal Teknik Mesin Indonesia Vol 11 No 1 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.667 KB) | DOI: 10.36289/jtmi.v11i1.49

Abstract

This research was conducted to find out the influence of the implementationof CAD/CAM for CNC milling process to the surface roughness andprecision. Specimens were made by using seven types of cutting process.There are face milling, pocket milling, profile milling, slot milling, drilling,thread milling, and surface contouring. The results showed that theimplementation of CAD/CAM with a variation of the cutting processproduces roughness value which is lower than without the implementation ofCAD/CAM. The surface roughness values for each of the cutting processwere face milling process (0.5028 μm; 0.5132 μm), slot milling (0.664 μm;0.6556 μm), profile milling (1.282 μm; 1.3128 μm), pocket milling (1.3852μm; 1.4856 μm) and drilling process (1.9944 μm; 2.1136 μm). The averagevalue of the dimensions from the measurement showed the differencebetween the results of the implementation of CAD/CAM and without theimplementation of CAD/CAM. The percentage difference in the length andwidth were respectively 0.037%; 0.059% for profile milling; 0.039%;0.061% for pocket milling; and 0.151%; 0.317% for drilling. Statistical useof the implementation of CAD/CAM does not significantly affect the value ofthe surface roughness but it has a significant influence on the precision ofthe product with a 95% precision level.
Pengaruh penambahan sekam padi terhadap kuat tekan dan penyerapan air bata ringan jenis cellular lightweight concrete (clc) Sulistyo Widiatmoko; Heru Sukanto; Purwadi Joko Widodo
Jurnal Teknik Mesin Indonesia Vol 11 No 1 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (740.411 KB) | DOI: 10.36289/jtmi.v11i1.48

Abstract

Lightweight concrete foam technology obtained by adding foaming agent (liquid form) into the concrete mix. Lightweight concrete has more advatages than conventional bricks. Lightweight concrete can reduce more structural weight on building. This research use rice husk as an added ingredient on lightweight concrete. The main objective of this study is to investigate the effect of rice husk addition on compressive strength and water absorption of cellular lightweight concrete. Variation of rice husk adding on lightweight concrete is 0% ; 0,25%; 0,5%; 0,75%; and 1%. Compressive Strength and Water Absorption test were performed using SNI 3421-2011 and SNI 03-0349-1989 standard respectively. Density test was performed to ensure that sample specimens appertain lightweight concrete. The observations during the experiment and test show that the lightweight concrete with 0,5% addition of rice husk has the highest value of compressive strength which 5.30 Mpa. The value of water absorption is directly proportional to the addition of rice husk, where the highest value shown on 1% addition of rice husk. Increasing value of water absorption occurs because rice husk can keep water and can’t easy to remove water content when be dried.
The Influence of Sintering Temperature toward Density and Strength of Plastic-Ruber Composite Heru Sukanto
Jurnal Energi Dan Manufaktur Vol 3, No.1 April 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.54 KB)

Abstract

The research investigates the effect of sintering temperature on density and mechanical properties of HDPE-rubbercomposite which was produced by pressured sintering methodThe materials that were used are HDPE plastic waste of oilbottle and unused tire. These materials were powdered via mechanical grinding manually. The powder size of -20 mesh wasselected as a raw material for specimen. Producing the specimens involved powder technology. Pressured sintering processwas commited for 5 minutes under pressure load of 1 MPa. The sintering temperature was variated along 110 to 140oC byincreasing 10oC incrementally. Specimen testing involved density, bending strength and izot impact strength. All of testingwas conducted on ASTM standard testing.The result reveals that increasing sintering temperature will grow up the density,bending strength and impact strength of specimen up to 10%, 12% and 72% respectively. The extreme increasing ofspecimen properties occurs at the temperature range of 120 to 130oC..
PENGARUH KONSENTRASI SILANE COUPLING AGENT TERHADAP SIFAT TARIK KOMPOSIT SERAT KENAF-POLYPROPYLENE Alip Astabi; Wijang Wisnu Raharjo; Heru Sukanto
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2015): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 6 2015
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Salah satu faktor yang berpengaruh pada sifat tarik komposit adalah kualitas ikatan serat-matrik. Perbaikan kualitas ikatan dapat dilakukan dengan silane coupling agent. Akan tetapi, perbedaan komposisi kimia disetiap jenis serat alam akan berdampak pada keefektifan pemakaian silane kopling agen. Sehingga, penelitian ini dilakukan untuk mengetahui seberapa besar pengaruh konsentrasi silane coupling agent  terhadap sifat mekanik komposit serat kenaf-polypropylene. Variasi konsentrasi silane coupling agent yang digunakan adalah 0%, 0.25%, 0.50%, 0.75%, dan 1% dengan lama perendaman 4 jam. Pembuatan komposit dilakukan dengan hot press. Parameter proses yang digunakan adalah suhu proses 180 oC, waktu penahanan 5 menit dan tekanan pengepresan 5 bar. Sifat tarik komposit diamati melalui pengujian tarik yang mengacu ke standar ASTM D 638. Sedangkan, kualitas ikatan serat-matrik diamati menggunakan scanning electron microscopy (SEM). Hasil pengujian menunjukkan bahwa konsentrasi silane coupling agent 0.50% menghasilkan komposit dengan kekuatan tarik tertinggi yaitu 26.30 MPa. Kata kunci : Komposit kenaf-polypropylene, sifat tarik, silane coupling agent,
PENGARUH LAJU PENDINGINAN TERHADAP SIFAT TARIK KOMPOSIT KENAF-POLYPROPYLENE (PP) Yunanto Andi Prabowo; Wijang Wisnu Raharjo; Heru Sukanto
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2015): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 6 2015
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Peran serat sintetis sebagai penguat komposit termoplastik dapat digantikan oleh serat alam. Kenaf merupakan salah satu tanaman penghasil serat alam yang banyak dibudidayakan di Indonesia. Sifat mekanik komposit serat alam-termoplastik dipengaruhi oleh beberapa parameter pengolahan seperti suhu proses, waktu penahanan, tekanan dan lajupendinginan. Laju pendinginan merupakan parameter terpenting yang menentukan sifat mekanik komposit termoplastik. Sehingga penelitian ini dilakukan untuk mengetahui pengaruh laju pendinginan terhadap sifat mekanik komposit serat kenaf-polypropylene (PP). Pembuatan Komposit dilakukan dengan hot-press. Parameter pengolahan yang dipilih adalah suhu proses 165oC,tekanan proses 50 bar dan waktu penahanan 5 menit.Variasi laju pendinginan yang dilakukan adalah pendinginan dalam hot press, pendinginan pada udara ruang, dan pendinginan dengan sirkulasi air. Sifat tarik material komposit diketahui dengan pengujian kekuatan tarik yang sesuai standard uji ASTM D 638. Daerah patahan hasil pengujian tarik diamati dengan menggunakan  foto makro. Kekuatan tarik tertinggi diperoleh pada komposit dengan laju pendinginan rendah. Kata kunci: Variasi laju pendinginan, serat kenaf, polypropylene,hot press, sifat tarik.
Penerapan Teknologi Proses Produksi Untuk Meningkatkan Kapasitas Dan Kualitas Kecap Manis UKM Bumi Makmur Sejahtera Gusti Fauza; Heru Sukanto; Catur Sugiarto; Syamsul Hadi; Okid Parama Astirin; Wisnu Nurcahyo; Ari Prasetyo
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 10, No 2 (2021): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v10i2.46368

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan tidak hanya kapasitas namun juga kualitas produk kecap manis kecap manis Bumi Makmur Sejahtera (BMS) khas Wonogori yang terdapat di Desa Bulusari, Kecamatan Bulusulur, Wonogiri Jawa Tengah. Dari observasi lapangan ditemukan beberapa permasalahan, yaitu waktu siklus produksi per batch produk yang masih tinggi dan proses produksi yang tidak efisien. Hal ini berdampak terhadao terbatasnya kapasitas produksi UKM. Beberapa proses yang memakan waktu lama adalah proses pemasakan (9 jam) dan pengemasan (12 jam). Permasalahan berikutnya terkait mutu dan keamanan pangan dimana wajan pemasakan yang bersentuhan langsung dengan produk terbuat dari semen (bahan yang bisa mengelupas). Kondisi ini tidak sesuai dengan konsep cara produksi pangan yang baik (CPPB) untuk industri rumah tangga. Oleh sebab pada kegiatan pengabdian ini akan diaplikasikan teknologi proses produksi yang tidak hanya meningkatkan kapasitas namun juga kualitas dan keamanan produk. Tahapan kegiatan yang dilakukan adalah: a) inisiasi dan sosialisasi program, b) pelaksanaan program, c) monitoring dan evaluasi program. Aplikasi teknologi yang diusulkan adalah sebuah  Introduksi lini produksi dengan system pengadukan otomatis dan pengemasan yag lebih efisien. Penerapan teknologi ini diharapkan dapat meningkatkan kapasitas dan kualitas produk kecap. Kemudian penggunaan bahan untuk alat yang terbuat dari stainless steel, merupakan salah satu solusi untuk menurunkan cemaran fisik. Dengan lini produksi baru ini, waktu produksi lebih pendek sehingga kapasitas meningkat signifikan. Disamping itu kualitas akan lebih baik karena dengan pengadukan otomatis adonan akan lebih homogen, serta keamanan pangan juga akan meningkat karena peralatan terbuat dari bahan yang aman untuk pengolahan produk pangan.
Pengaruh beban kompaksi dan suhu sintering terhadap densitas dan sifat mekanik aluminium water atomized Heru Sukanto
Mekanika: Majalah Ilmiah Mekanika Vol 17, No 2 (2018): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v17i2.35126

Abstract

The powder size used in the research were maximum of 297mm and maximum of 105m resulted by water atomization. Both powder sizes were dry mixed by ratio of 65:35 %wt and was added by 1,25% wt of wax. Mixing was taking a place in steel cylinder with diameter of 2” roteted at 140 rpm for 2 hr. Green body was formed by pressing pressure of 280, 340, 400 and 435 Mpa. Sintering was conducted in argon and temperatures variation of 500, 550, 600 and 650oC for 2 hr.The results show thet sintering temperature change have no significant effects on density and mechanical properties while presing pressure have dominantly effects. Traverse rupture strength, density and hardness growth with  increasing pressing pressure but they will decrease with increasing sintering temperature. The best increasing of mechanical properties was occurred at temperature sintering of 500oC and compaction pressure of 400 Mpa.
Co-Authors A Muhammad Fuad Nur Rochim Alip Astabi Ari Prasetyo Arief Ari Kuntoro Bambang Kusharjanta Budi Santoso Catur Sugiarto Dwi Budi Santoso Dwi Heru Siswantoro Fajri Sri Ardion Fitrian Imaduddin Gusti Fauza Imaduddin, Fitrian Indri Yaningsih Indri Yaningsih Indri Yaningsih Joko Triyono Joko Triyono Laksono Trisnantoro Lambang G H, Raymundus Lullus Mujtahid Kaavessina, Mujtahid Okid Parama Astirin Okky Nugra Retyawan Prasojo, Yudin Joko Purwadi Joko Widodo purwadi joko widodo Purwadi Joko Widodo Raden Wisnu Nurcahyo Raymundus Lullus Lambang Risdiyanto Edy Saputro Singgih Dwi Prasetyo Sulistyo Widiatmoko Syamsul Hadi Triyono . Ubaidillah Ubaidillah Widhaya Bastian Purnama Wijang Wisnu Raharjo Wijang Wisnu Raharjo Wijang Wisnu Raharjo Yunanto Andi Prabowo Zainal Arifin