Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Ilmiah Teknik Mesin
. Zulhanif
University of Lampung, Bandar Lampung 35145, Indonesia
Mechanical Engineering

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
PERILAKU CREEP PADA KOMPOSIT POLYESTER YUKALAC 157 BQTN-EX DENGAN FILLER SERAT GELAS Marlin, Dodi; Sugiyanto, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 1 (2013)
Publisher : FT UNILA

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

Abstract

Research aims to investigate the creep behavior of the composite which made from polyester resin with fiberglass filler. Composites are composed from fiber glass with pararel oriented, then the composition of the fiber volume to matrix are vary at 5%: 95%, 10%: 90%, and 15%: 85%.Composite then casted based on dimensions listed in ASTM D2990. Composites tested with the tensile test to determine the tensile strength of the composite. The test is continue with creep testing by providing creep load on the testing 60% of the tensile strength. In order to know the mechanism of failure in the plane of composite fracture, SEM is used to observing it. The test result showed that the composite with the volume composition of the fiber versus matrix : 15 %: 85%, has the longest time of all variations although just only 1000 seconds.The low creep time due to presence of voids in the composite matrix, fiber breaking, pull out, debonding at the fiber and also the influence of loading during creep testing are not uniform.With a maximum creep only 1000 seconds, the composite results of this study are not feasible to be applied in both the shipping industry andautomotive.Keywords: polymer composite, Polyester, Fiber glass, creep behaviour
PERILAKU CREEP PADA KOMPOSIT POLYESTER DENGAN SERAT KULIT BAMBU APUS (GIGANTOCHLOA APUS (J.A & J. H. SCHULTES) KURZ) Taufik, M.Ikhsan; Sugiyanto, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 1 (2013)
Publisher : FT UNILA

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

Abstract

Bamboo is used as raw material wicker and crafts are emerging as a new solution for use as new materials that are more environmentally friendly and have better mechanical strength. Research by utilizing bamboo as reinforcement fibers and polyester resin matrix aims to determine the mechanical strength of the resulting composite merging the two. Bamboo fiber composites made with various volume fractions of 10%, 15% and 20% using polyester resin and catalyst MEKPO ratio 100:1. The composite is prepared by hand lay-up by using a glass as a mold. Bamboo fibers used as reinforcement composites, is expected to increase the tensile strength and creep strength of each variation. In addition to observing the microstructure using SEM (Scanning Electron Microscope) to determine the failure mechanisms that occur on the fracture surface.From this study the authors concluded that bamboo fiber composites have the potential for further development because the tensile test results are directly proportional to the addition of fiber to the highest tensile strength was 86.01 MPa at 20% volume fraction, whereas the average creep testing best time of 529.63 seconds on 10% volume fraction, the failure mechanism of the plates shown in SEM is a form of fiber breaking, pull out and de bonding.Keywords: Bamboo, composite, creep.
KARAKTERISASI SIFAT MEKANIK DAN STRUKTUR MIKRO BAJA CARBON RENDAH UNTUK CANE CUTTER BLADE PADA PT GUNUNG MADU PLANTATION Permana, Bayu Agung; Badaruddin, Mohammad; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 3 (2013)
Publisher : FT UNILA

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

Abstract

Cane cutter blade (blade chopper cane), which is a tool used for chopping cane. This tool acts as a cane crusher, made of low steel carbon. Constraints that occur on Cane Cutter Blade is a high  wear rate, thus disrupting the productivity of the industry.  The company handles this problem by providing a coating on a cane cutter blade, only in this way  is still considered very less effective at. low steel carbon relatively low carbon steel.Characterization of the mechanical properties and the microstructure of low steel carbon with hardness testing and tensile testing, while the micro picture of choice to see the results of the condition of  the microstructure after a heat treatment with water as cooling media.Keywords: microstructure, cane cutter blade, low steel carbol, tensile testing, hardness testing, heat treatment.
Effect Of Slab Thickness On Weld Distortion Results In Medium Carbon Steel AISI 1045 By SMAW Method Aulia, Irsyad Haryono; Tarkono, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 3 (2013)
Publisher : FT UNILA

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

Abstract

This research aimed to investigate the effect of width plate variation to distortion caused by welding in AISI 1045 light steel alloy plate. This kinds of steel is formable by heat treatment and often for making mechanical component use. Sometimes repairing mechanical component was done by welding. The deformation that occurred by welding are caused by distortion. Distortion is shape transformation proccess of welding result which caused by unbalance between expanding metal while heating and shrink while colding.This research takes places in Bureau of Work and Training (BLK) Bandar Lampung, for making the test specimen and distortion measurement, while the hardness test and microstructure test held in Material Laboratory Lampung University. Before testing the specimen, first of all the steel must be welded well, using Shielded Metal Arc Welding (SMAW) method. The electrode which used for welding is E 6013 RB 26, while the joint are V form with 80 A electric current. The welding region that will be the sample data test are base metal, HAZ, and weld metal for hardness test and microstructure test. The variation of plate width are 2, 5, 8 mm.From the result of testing materials, we can make some conclution which is, the largest distortion level experienced by plate occurred in 8 mm width of plate, while  the largest hardness number experienced by plate occurred in base metal region with 57,5 HRC number. Although, the 8 mm width of plate is the most thick of all specimen, the hardness number in HAZ refgion has the smallest number of hardness. Keywords: distortion, plate, light steel, SMAW
ANALISIS UJI KETAHANAN LELAH BAJA KARBON SEDANG AISI 1045 DENGAN HEAT TREATMENT (QUENCHING) DENGAN MENGGUNAKAN ALAT ROTARY BENDING Sugiarto, Teguh; Zulhanif, .; Sugiyanto, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 3 (2013)
Publisher : FT UNILA

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

Abstract

Fatigue is the one of the main cause from of the material failure. The main of cause failure 90 % caused fatigue.   Fatigue is material sructure process changes that is caused by repeatly load (stress or shear) in a long period of time so it occured crack or break. The reason of this research is to analyze of the fatigue strength medium carbon steel type AISI 1045 with variaton of shaft rotation on rotary bending machine. Fatigue test applied on medium carbon steel  type AISI 1045 without heat treatment. This research was conducted with variation of shaft rotation 2880 rpm and continued with load variation 20%, 30%, 40%, 50% and 60 % from material UTS. Specimen that used according ASTM E466 spesimen made by lathe machine. Fatigue test is using by rotary bending machine type fatigue test machine.Keywords:Fatigue test, rotary bending, medium carbon steel  AISI 1045.
PENGARUH PENAMBAHAN LIMBAH PADAT ABU TERBANG BATUBARA(FLY ASH) TERHADAP KEKUATAN TEKAN DAN POROSITAS GENTENG TANAH LIAT KABUPATEN PRINGSEWU Febriyansyah, Puji; Tarkono, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 4 (2013)
Publisher : FT UNILA

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

Abstract

Fly ash, chemicallyis analumino-silicamineral containing Ca, K, and Na elements, fly ash has amoderate to high bonding capacity characteristic , and has acement-forming properties. In this study the authors use the industrial fly ash coal waste as an alternative mixture of tile manufacture. The tiles manufactured by mixing clay, sand, water and fly ash. Then smoothed with ekstuder machine and forming kuweh then aerate for 3 days, before do the dieing process . Tile dried for 4 days, then do fumigation for 12 hours and followed by burning process for 12 hours . Testing is done for press and porosity testing in order to determine the presence/absence of the influence of the addition of rice husk ash/fly ash to clay tile in the Pringsewu Region.The results showed that there is compressive strength and porosity change compared to tiles without a mixture of fly ash . The optimum value for testing tap and porosity testing obtained on the tile with a mixture composition of fly ash is 5% to the value of the average compressive strength of 11,042 kPa and the mean porosity is17.27 % . The minimum value for testing tap and porosity obtained on tile without fly ash mixed with the mean compressive strength of 8,393 kPa and the mean porosity is 21,92 %Keywords : clay tile, coal fly ash, silica (SiO2), compressive strength, porosity
PENGARUH PENAMBAHAN ABU SEKAM PADI DAN ABU TERBANG BATUBARA TERHADAP KEKUATAN TEKAN DAN POROSITAS GENTENG TANAH LIAT KABUPATEN PRINGSEWU Kuncoro, Doni Sigit; Tarkono, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 4 (2013)
Publisher : FT UNILA

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

Abstract

Rice husk ash and prosperous coal fly ash silica (SiO2). Silica-term construction, concrete technology  has been used primarily as an additive. Husk ash and coal fly ash is used as an additive clay roof tile manufacturing process. It is made by compounding of clay, sand, water and husk ash. Then, they are mashed by extruder machine and forming of kuweh and then, airing for three days before the process of stamping. The roof tile is dried for four days then there is fumigation for twelve days and continued by combustion for also twelve days. The examination which used is press and porosity examination with the aim of knowing whether there is additional impact of rice’ husk ash’ existence or not into clay roof tile in Kabupaten Pringsewu. The research’s results showed that there is conversion of press and porosity power compared with roof tile rice’s husk ash composition. The optimum value for the press and examination of porosity obtained from the tile with a composition of 5% rice husk ash and 5% coal fly ash 'with an average of 12.253 KPa press strength and porosity values average value of 18.06%. The minimum value for the press obtained from the tile with a composition of 5% rice husk ash and 2,5% coal fly ash with the press power’s average value 9.757 KPa. The minimum value for porosity from the tile with a composition of 5% rice husk ash and 7,5% coal fly ash with the porosity average value 23.78%. Keywords: clay roof tile, rice husk ash, fly ash, silica (SiO2), press power, porosity.
Pengaruh Kedalaman Alur Back Chipping Pada Pengelasan Listrik SMAW Baja Karbon Sedang AISI 1045 Terhadap Uji Kekuatan Tarik Fikmar, Trisulohadi Ben; Tarkono, .; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 4 (2013)
Publisher : FT UNILA

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

Abstract

Medium carbon steel can be assembled in various ways, one of them by welding. On the implementation of welding using SMAW welding type which is one method of welding is used widely in construction grafting techniques. In welding, there’s common defects such as imperfections of root penetration, hardened and cracked. Back chipping or welding opponent needs to be done to avoid or fix things that often occur in the root weld. SMAW welding is one method which is widely used in construction grafting techniques. This study aims to determine the different test results with the depth of groove weld seam treatment chipping back to the tensile strength test also to determine micro structure. The depth of groove seam using a variation of 2 mm, 3 mm and 4 mm, then the welding results of each treatment were divided into three tensile test specimens and one photo micro specimen. Upon completion of the test specimens and then tensile test performed and photo micro to acknlowledge changes in mechanical properties. From the testing that has been done, the result from tensile strength at back chipping welding with 3mm depth is higher than treated back chipping welding with 2mm and 4 mm depth. The largest maximum tensile strength were found in the back chipping welding groove with 3mm depth is 683.3 MPa, while the untreated back chipping weld the largest maximum tensile strength is 591.7 MPa. Microstructure of root steel welding was welded without back chipping has dominant ferrite grain area.  Keywords: Medium carbon steel AISI 1045, SMAW, back chipping, tensile strength, photo micro.
PENGARUH KOMPOSISI DEPOSIT NaCl/Na 2 SO TERHADAP KOROSI TEMPERATUR TINGGI BAJA AISI 4130 YANG DILAPISI ALUMINIUM 4 Saputra, Yudhistyra; Badaruddin, Mohammad; Zulhanif, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 2 No. 1 (2014)
Publisher : FT UNILA

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

Abstract

Steel AISI 4130 is a combination steelof 1,0 Cr-0,25 Mo-Fe that mostly used for the component heat axchanger and pipe steam   boiler. However in a high temperature and contain of corrosive gas like klor and sulfur,the endurance of the corrosion of steel AISI 4130 declines. It is important to do a research for increasing the endurance of the corrosion of the steel AISI 4130 with heated Al layered in the surface of steel AISI 4130 Al layered and oxidized in temperature 750°C during periods 1-49 jam. The calibration of the corrosion is done with the variation of deposit NaCl/Na The finding of the research shows that the existence of deposit NaCl/Na2 SO in the steel Al layered brings a large influence oxidation kinetics steel, it is proven through the largest value of parabolic constants of the steel AISI 4130 with Al layered with the comparison of deposit  NaCl/Na4(gr):30/70 is 6,89 × 10-9 g2 cm–4 s–1. Whereas the value of parabolic constants with the comparison of deposit (gr): 100/0 is 2,71 × 10 -9 g2 cm–4 s–1, 50/50 is 6,15 × 10 -9  g2 cm–4 s–12 SO24SO4 , 70/30 is 2,97 × 10 g2 cm –4 s–1 and 0/100 is around 2,60 × 10 -9  g 2 cm –4s–1. The destruction of the protective layer Al in the aluminide layer is caused by the existence of klor dan sulfur from the deposit NaCl/Na2SO4 thattriggersthe growthofiron-rich ovide (FeO).Keywords : steel AISI 4130, Al hot-dip, deposit NaCl, deposit Na2SO4 , Al2O3, iron oxide.
Co-Authors . Sugiyanto . Tarkono, . Bayu Agung Permana, Bayu Agung Dodi Marlin, Dodi Doni Sigit Kuncoro, Doni Sigit Irsyad Haryono Aulia, Irsyad Haryono M.Ikhsan Taufik, M.Ikhsan Puji Febriyansyah, Puji Teguh Sugiarto, Teguh Trisulohadi Ben Fikmar, Trisulohadi Ben Yudhistyra Saputra, Yudhistyra