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All Journal Jurnal Teknik Mesin Indonesia

Heru Sukanto

Staff Jurusan Teknik Mesin, Fakultas Teknik, Universitas Sebelas Maret

Author-ID : 2658297

Aerospace Engineering Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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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

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

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 Î¼m and 1,03 m/sÂ², profile milling of 1,0984 Î¼m and 1,49 m/sÂ², pocket milling of 1,1004 Î¼m and 1,73 m/sÂ², slot milling of 1,4888 Î¼m and 2,44 m/sÂ² and drilling of 1,9944 Î¼m and 18,62 m/sÂ². 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

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

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 Î¼m; 0.5132 Î¼m), slot milling (0.664 Î¼m;0.6556 Î¼m), profile milling (1.282 Î¼m; 1.3128 Î¼m), pocket milling (1.3852Î¼m; 1.4856 Î¼m) and drilling process (1.9944 Î¼m; 2.1136 Î¼m). 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

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 canâ€™t easy to remove water content when be dried.

Co-Authors Arief Ari Kuntoro Indri Yaningsih Laksono Trisnantoro Okky Nugra Retyawan Purwadi Joko Widodo Risdiyanto Edy Saputro Sulistyo Widiatmoko Triyono . Wijang Wisnu Raharjo

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