Infotekmesin
INFOTEKMESIN is a peer-reviewed open-access journal with e-ISSN 2685-9858 and p-ISSN: 2087-1627 published by Pusat Penelitian dan Pengabdian Masyarakat (P3M) Politeknik Negeri Cilacap. The journal invites scientists and engineers to exchange and disseminate theoretical and practice-oriented in the various topics include, but not limited to Informatics, electrical Engineering, and mechanical Engineering.
Articles
669 Documents
<![CDATA[PERPATAHAN FATIK MATERIAL ALUMINIUM 2024-T3 DENGAN PENGELASAN FSW ]]>
<![CDATA[ Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i01.5
<![CDATA[Resilient, machine processed, shapped aluminium using pulling power for pure aluminium with 4-5kgf/mm2. Aluminium fusion with series 2024-T3 is a metal fusion whose low weldability so it is very difficult to be conducted the welding process because it tends to occur hot cracking or being porous, and precipitation hardening when conducting welding process due to segregation of copper (Cu) fusion subtance. One of welding method to obtain the good aluminium welding result is by using FSW (friction stir welding). The purpose of this research is to find out the shape and type of fracture on aluminium fusion with FSW welding by dealing TTT. The fracture is created from fatik substance test. The reserach method was conducted by welding of plate aluminium fusion 2024-T3 using FSW technique by dealing transient thermal tensioning (TTT). Transient thermal was conducted by resigning heater line with weld tool/pin. The speed of determined FSW welding was 11 mm/minutes and 1200 rpm. The conducted test was fatigue test and factografi test with SEM. The result of the reserach shows that the number of fatik test cycle is 765.250 with sigmoidal curve visually. Then, the result of fractography using SEM shows that the occured fracture is brittle.]]>
<![CDATA[PERANCANGAN APLIKASI PENJAMINAN MUTU SEBAGAI DATA PENDUKUNG BENCHMARKING PERGURUAN TINGGI ]]>
<![CDATA[Vikasari, Cahya]]>;
<![CDATA[Wahyu Rahadi, Nur]]>
<![CDATA[ Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i01.6
<![CDATA[One of information system management that can ease and support information and decision making that needed by medium and upper level management is to provide the easy of acces towards information within or outside that relates with the organization’s goal. This study was conducted in the higher education that has organization structure includes lower, medium and upper level management. The method that used was software delevoping method, i.e. waterfall. The result of this study is this information system can be used to support data menagement of quality assurance for support benchmarking of the higher education, obtain information of the higher education activities that agree with target or visi and mission, and also compare the progress of each unit in the higher education. Therefore, from the exsist studies, it can be easy for the executive boards to make policy and decision for running the higher education.]]>
<![CDATA[APLIKASI SIMULASI PENILAIAN TRIDARMA PERGURUAN TINGGI DALAMPROSES SERTIFIKASI DOSEN DI POLITEKNIK NEGERI CILACAP ]]>
<![CDATA[ Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i01.7
<![CDATA[The confession of professionalism can be stated in the form of sertificate awarding to lecturer bycompetent institutions. The best effort that needed for comitting certified lecturer until it is tried to be able to increase the quality of state polytechnic of Cilacap because of lecturer is the most important component to determine learning activity process. The lack of preparation will cause the lecturer who recommended on certified lecturer can not pass well. The simulation of intern score calculation of certified lecturer will be conducted by institution through committee of certified lecturer. This research focuses on the simulation of intern score calculation of certified lecturer which recommended. The method that used was software development method, i.e., prototyping. The finding of this research is this system can help to simulate the data of score evaluation. The committee of certified lecturer will be easy to make decision in committing certified lecturer and the calculation of automatic simulation score will decrease errors in calculating total score of certified lecturer.]]>
<![CDATA[PENGARUH JARAK LASER HEAD TERHADAP DIAMETER SPOT PADA PEMOTONGAN POLYMETHYL METHACRYLATE MENGGUNAKAN MESIN LASER CUTTING ]]>
<![CDATA[ Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i01.8
<![CDATA[Laser cutting is one of the processes used as an alternative to conventional machinery that has goodcutting qualities and minimizes product damage. The workings of laser cutting is to direct the output of high laser power on the material to be cut, the material then melts, burns, evaporates by gas, and produces edges with a good quality surface. This study aims to determine the effect of laser head distance from the laser cutting machine on the spot diameter produced on the polymethyl methacrylate (PMMA) material. This study used a laser machine with 60 watts of power and variation of laser head distance with an interval of 1 mm at a distance of 1-28 mm. Spot diameter value was gained measurement from using stereo zoom microscope with 30 X magnification and mapping. The result shows that the spot diameter was 0,229 - 0,990 mm. The factors that affect the value of spot diameter is the laser power used and laser head distance from the material.]]>
<![CDATA[RANCANG BANGUN RASIO GEAR TERHADAP KECEPATAN PENGEROLAN PIPA ]]>
<![CDATA[ Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i01.9
<![CDATA[The basic principle of metal formation is a process that is done by giving shape changes on the workpiece. This shape change can be done by providing an outer force resulting in plastic deformation. The application of this metal formation can be seen in some examples such as rolling, bending, forging, extruding, wire drawing, deep drawing, and so on. In the process of formation of this metal is also used tooling (bending) whose function gives style to the workpiece, and direct the change of shape. Knowing the speed of the power forwarding system on the pipe roller machine starting from the power source until power is used as the work cycle, and to know the type of belt, the length of the belt used on the pipe roll machine. From this research can be concluded that: (1) In bending the thickness of 4 mm pipe the required power is 582.4 N with power of 0.4 hp then the motor required 1 hp, the diameter of the pulley used is 2 inch for motoran and 8 inch for the pivot reducer, belt used type B with length 44 inch, (2) To reach the rotation of ± 2 rpm ie pulley diameter used with the ratio of pulley ratio is 1: 4, the reducer is used with the value I = 60 and sprocket ratio 1: 3.]]>
<![CDATA[RANCANG BANGUN VENTURI SCRUBBER TERHADAP PENURUNAN EMISI JELAGA ]]>
<![CDATA[ Infotekmesin Vol 10 No 1 (2019): Infotekmesin: Januari 2019 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v10i1.10
<![CDATA[The industrial world and vehicles that currently exist make the pollution level increase. Often we see thick smoke rising out of the factory chimney, the thick smoke is a waste of gas released by the environmental factory. The scrubber system is a collection of various air pollution control devices that can be used for particles and / or gases from industrial output gas streams. The term scrubber is also used to describe a system that injects or enters a dry active ingredient or liquid into a dirty gas stream to clean acid gas. The design of the venturi scrubber aims to design a venturi scrubber to reduce soot emissions on direct injection diesel engines, get a standard venturi scrubber design and reduce soot levels. This design begins with determining the alternative design, determining the venturi dimensions and the material that will be used to build the venturi scrubber. The result of this step is a working drawing that is ready to be realized through machining. Next is to make the components based on the design results in the previous step. These components are then assembled into a tool. The final step is to do the venturi design test according to the venturi type standard and the size requirements that are in the ISO 5167-4 standard. Making a venturi scrubber design program using Delphi-7 software with pressure drop data, liquid to gas ratio, diameter ratio, pipe diameter, throat diameter, renold number and type of flow that occurs and design using Solidworks 2010.]]>
<![CDATA[RANCANG BANGUN MESIN SENAI UNTUK ULIR M11 ]]>
<![CDATA[ Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i02.11
<![CDATA[Bolting machine is a machine which is designed to conduct the making process of outside thread without rotating the handlebar of workpiece using hand manually, Therefore, the machine can help the processing in some industries which do not have qualified operators. The purpose of the designing and calculating of machine elements on senai machineis to create a design and make it in real product that can create outside thread with the maximum size of M11, to calculate parts of machine elements, i.e. axis diameter and sprocket chain and to create the real machine product. The designing method used follows these steps, i.e. problem identification, initial idea, improvement of the idea, analysis of design, decision making, and implementation. The result of the evaluation on concept design was the cutter holder on the chuck variable and themover shaft handle. The result of machine elements calculation showed that the electric motor power was 40 watt, shaft diameter was 25 mm with inside diameter of 16 mm, the bearing used was 6205 Ball Bearing, and the thread capacity was M11 metric thread.]]>
<![CDATA[TEKNOLOGI MARKETPLACE SEBAGAI UPAYA PENINGKATAN PEMASARAN PRODUK HASIL USAHA KECIL ]]>
<![CDATA[ Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i02.12
<![CDATA[Small and medium businesses are very rapidly growing in Indonesia. One of the activities in the small and medium business is the marketing process. The entrepreneurs tend to focus on production activities but for marketing strategies are not developed so that the market share is still local market. The problems that occur in marketing small and medium business products are little knowledge about marketing strategies, marketing targets and willingness to develop from the entrepreneurs themselves.Marketplace systems are built to increase market expansion so that it can help entrepreneurs to do marketing. The marketplace system is built based on the web, both entrepreneurs and buyers can communicate through the web marketplace. The results of this study are that the system can reach broader marketing with small and medium business marketplaces and more targeted.]]>
<![CDATA[KARAKTERISASI Al-Zn7 HASIL PELEBURAN DAPUR CRUCIBLE DENGAN TIPE PENUANGAN TUNGKIK ]]>
<![CDATA[ Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i02.13
<![CDATA[Nowdays, Alumunium is widely used and utilized in industrial activities because of light properties and having well mechanical strengths. The use of alumunium does not only limit on the use of new alumunium, but also the used one. The main purpose of this research, i.e., (1) testing of physical and mechanical properties of Al-Zn7 from the fussion of Crucible furnace; (2) analyzing crucible furnace of the Al-Zn7 fussion by comparing to the result of the first and second fussion. The method of this research was experimental research with the average value of each the first casting was 49,2 HRB and the second one was 50,3 HRB. Based on the test result showed that the quality of crucible furnace was good because it did not experience the significant changes.]]>
<![CDATA[OPTIMASI TEMPERATUR YANG MEMPENGARUHI KEKERASAN PADA PEMBUATAN BALL MILL DENGAN CARA HOT ROLLING ]]>
<![CDATA[ Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018 ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Cilacap ]]>
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DOI: 10.35970/infotekmesin.v9i02.14
<![CDATA[Violence is one of the characteristics needed by the ball mill. To get this trait up to now is still done by trial and error so it is very ineffective. Therefore, a study was conducted to determine the parameters that affect the hardness of the ball mill and the optimal level. There are three parameters that are thought to affect ball mill hardness, namely the temperature of raw material (Tm), the initial temperature of the quenching process (Tq) and the final temperature of the quenching process (Tt).]]>
