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Jig and Fixture Redesign for Making Reamer on Head Cylinder Bella Cornelia Tjiptady; Rifki Zainur Rahman; Ratna Fajarwati Meditama; Gede Widayana
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 9 No. 1 (2021)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v9i1.32597

Abstract

Proses produksi telah banyak berevolusi dengan diperkenalkannya konsep manufaktur inovatif yang handal. Salah satu komponen mesin yang banyak diproduksi adalah cylinder head. Cylinder head harus tahan terhadap temperatur dan tekanan yang tinggi selama engine bekerja. Oleh sebab itu umumnya cylinder head dibuat dari besi tuang. Kendala yang ada saat ini yaitu proses pembuatan cylinder head kurang efektif dan efisien karena ketika menetapkan sudut untuk membuat reamer berbasis manual, selain itu setting benda kerja tidak otomatis sehingga membutuhkan waktu yang terlalu lama. Solusi dari permasalahan tersebut yaitu dengan adanya jig dan fixture. Metode penelitian yang digunakan adalah metodologi perancangan fixture (Society of Manufacturing Engineers). Berdasarkan hasil analisis, terdapat kelebihan dari jig dan fixture yang telah dirancang ulang yaitu: 1) memiliki stoper yang berfungsi untuk memberhentikan benda kerja, dengan sudut yang sudah ditentukan sehingga tidak perlu mensetting sudut kembali; 2) tidak mudah bergeser apabila fixture dipasang dan sejajar di meja frais; 3) terdapat dua engsel sehingga lebih balance; 4) pemasangan tidak rumit sehingga tidak memakan banyak waktu dalam pembuatan produk.Kata kunci: Jig and fixture; redesign; head cylinder The production process has evolved a lot with the introduction of innovative reliable manufacturing concepts. One of the engine components that are widely produced is the cylinder head. The cylinder head must withstand high temperatures and pressures while the engine is running. Therefore, generally the cylinder head is made of cast iron. The current constraint is that the cylinder head manufacturing process is less effective and efficient because when setting the angle to make the reamer a manual basis, besides that the workpiece setting is not automatic so it takes too long. The solution to this problem is the presence of jigs and fixtures. The research method used is the fixture design methodology (Society of Manufacturing Engineers). Based on the results of the analysis, there are advantages to the redesigned jig and fixture, namely: 1) it has a stoper which functions to stop the workpiece, at a predetermined angle so that there is no need to set the angle again; 2) it does not move easily when the fixture is installed and parallel to the milling table; 3) there are two hinges so that it is more balanced; 4) installation is not complicated so it does not take much time to manufacture the product.Keywords : Jig and fixture; redesign; head cylinder.  DAFTAR RUJUKAN Basuki, B., Yoto., Suyetno A., & Tjiptady, B. C. (2020). Management Model of Manufacturing Workshop/Laboratory of Vocational Education in the Industry 4.0. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 127-130, doi: 10.1109/ICOVET50258.2020.9230188. Choong, G. Y. H., Canciani, A., & Defocatiis, D. S. A. (2020). An Adaptable Flexural Test Fixture for Miniaturised Polymer Specimens. Polymer Testing, 85, 106430. doi:10.1016/j.polymertesting.2020.106430 Craig, O., Picavea, J., Gameros, A., Axinte, D., & Lowth, S. (2020). Conformable Fixture Systems With Flexure Pins For Improved Workpiece Damping. Journal of Manufacturing Processes, 50, 638–652. doi:10.1016/j.jmapro.2019.12.045  Fonte, M., Reis, L., Infante, V., & Freitas, M. (2019). Failure Analysis of Cylinder Head Studs of a Four Stroke Marine Diesel Engine. Engineering Failure Analysis. doi:10.1016/j.engfailanal.2019.03.026  Gameros, A., Lowth, S., Axinte, D., Nagy-Sochacki, A., Craig, O., & Siller, H. R. (2017). State-Of-The-Art In Fixture Systems For The Manufacture And Assembly Of Rigid Components: A Review. International Journal of Machine Tools and Manufacture, 123, 1–21. doi:10.1016/j.ijmachtools.2017.07.004 Jing, G. X., Zhang, M. X., Qu, S., Pang, J. C., Fu, C. M., Dong, C., Zhang, Z. F. (2018). Investigation into diesel engine cylinder head failure. Engineering Failure Analysis, 90, 36–46. doi:10.1016/j.engfailanal.2018.03.008  Kamble, V. D., & Mathew, A. T. (2020). Brief Review of Methodologies for Creation of Cohesive Fixture Design. Materials Today: Proceedings, 22, 3353–3363. doi:10.1016/j.matpr.2020.04.285  Kampker, A., Bergweiler, G., Hollah, A., Lichtenthäler, K., & Leimbrink, S. (2019). Design and Testing of The Different Interfaces In A 3D Printed Welding Jig. Procedia CIRP, 81, 45–50. doi:10.1016/j.procir.2019.03.009  Krznar, N., Pilipović, A., & Šercer, M. (2016). Additive Manufacturing of Fixture for Automated 3D Scanning–Case Study. Procedia Engineering, 149, 197–202. doi:10.1016/j.proeng.2016.06.656  Kumar, S., Campilho, R. D. S. G., & Silva, F. J. G. (2019). Rethinking Modular Jigs’ Design Regarding the Optimization of Machining Times. Procedia Manufacturing, 38, 876–883. doi:10.1016/j.promfg.2020.01.169 Lu, R., Li, Y.-C., Li, Y., Jiang, J., & Ding, Y. (2020). Multi-agent Deep Reinforcement Learning Based Demand Response for Discrete Manufacturing Systems Energy Management. Applied Energy, 276, 115473. doi:10.1016/j.apenergy.2020.115473  Ma, S., Zhang, Y., Yang, H., Lv, J., Ren, S., & Liu, Y. (2020). Data-driven Sustainable Intelligent Manufacturing Based on Demand Response for Energy-Intensive Industries. Journal of Cleaner Production, 123155. doi:10.1016/j.jclepro.2020. 123155 Marsono, Yoto, Sutadji E., & Tjiptady, B. C. (2020). Career Development and Self-Efficacy Through Industrial Working Practice in Vocational Education," 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 1-4, doi: 10.1109/ICOVET50258.2020.9230111 Nee, A. Y. C., Bhattacharyya, N., & Poo, A. N. (1987). Applying AI in Jigs and Fixtures Design. Robotics and Computer-Integrated Manufacturing, 3(2), 195–200. doi:10.1016/0736-5845(87)90102-5 Qolik, A., Nurmalasari, R., Yoto., & Tjiptady, B. C. (2020). The Role of Special Job Fair in Distributing Competitive Graduates in the 21st Century. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 115-118, doi: 10.1109/ICOVET50258.2020.9230064 Schuh, G., Bergweiler, G., Lichtenthäler, K., Fiedler, F., & Puente, R. S. (2020). Topology Optimisation and Metal Based Additive Manufacturing of Welding Jig Elements. Procedia CIRP, 93, 62–67. doi:10.1016/j.procir.2020.04.066  Seloane, W. T., Mpofu, K., Ramatsetse, B. I., & Modungwa, D. (2020). Conceptual Design of Intelligent Reconfigurable Welding Fixture for Rail Car Manufacturing Industry. Procedia CIRP, 91, 583–593. doi:10.1016/j.procir.2020.02.217 Siva, R., Siddardha, B., Yuvaraja, S., & Karthikeyan, P. (2020). Improving the productivity and tool life by fixture modification and renishaw probe technique. Materials Today: Proceedings, 24, 782–787. doi:10.1016/j.matpr.2020.04.386  Tjiptady, B. C., Rohman, M., Sudjimat, D. A., Ratnawati, D. (2020). Analisis Tegangan, Deformasi, dan Retak Pada Gas Turbine Blade dengan Metode Elemen Hingga. Jurnal Taman Vokasi. Vol 8, (2). doi : 10.30738/jtv.v8i2.8425 Tjiptady, B. C., Yoto., & Marsono. (2020). Entrepreneurship Development Design based on Teaching Factory to Improve the Vocational Education Quality in Singapore and Indonesia, 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, pp. 130-134, doi: 10.1109/ICOVET50258.2020.9230222 Tohidi, H., & Algeddawy, T. (2016). Planning of Modular Fixtures in a Robotic Assembly System. Procedia CIRP, 41, 252–257. doi:10.1016/j.procir.2015.12.090 Vijaya, R. B., Elanchezhian, C., Rajesh, S., Jaya, P. S., Kumaar, B. M., & Rajeshkannan, K. (2018). Design and Development of Milling Fixture for Friction Stir Welding. Materials Today: Proceedings, 5(1), 1832–1838. doi:10.1016/j.matpr.2017.11.282  
Pengaruh Modifikasi Knalpot Terhadap Performa dan Suhu Mesin Pada Sepeda Motor Satria F150 Ahmad Saepuddin; Bella Cornelia Tjiptady; Candra Pradhana; Mojibur Rohman; Ratna Fajarwati Meditama
G-Tech: Jurnal Teknologi Terapan Vol 7 No 1 (2023): G-Tech, Vol. 7 No. 1 Januari 2023
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.412 KB) | DOI: 10.33379/gtech.v7i1.1928

Abstract

Factors that greatly affect the condition of the motorbike when racing a motorbike include the engine, racer, and all other elements such as the exhaust. Because it is necessary to analyze the exhaust to minimize the lack of public knowledge about the modification of the exhaust on the effect on the engine. This study discusses the effect of exhaust modification on engine performance on motorbikes with the Satria F 150 brand as the object of research because. In this research, we will look at some of the effects that occur from changes in exhaust gas flow in the standard exhaust. The effects you want to see are temperature, backpressure, torque and engine power. Each of these effects can be seen using the dyno test. The peak power in the standard exhaust is 15.5 HP at 9027 RPM and the maximum engine torque is 13.0 N.m at 7974 RPM. While the peak power in the modified exhaust is 15.3 HP at 9119 RPM and the maximum engine torque is 13.2 N.m rotated 7182 RPM. So the racing exhaust has a higher power at 3000 RPM to 7000 RPM while the standard is lower at 3000 RPM to 7000 RPM but higher at 8000 RPM. The results of fuel consumption data with racing exhausts and standard exhausts only get low torque and power at the initial pull, but when using a modified exhaust at low and high revolutions it produces more power and torque than standard exhausts making the engine more powerful by using the advantage of torque and power. Because the standard exhaust has an inhibition of the exhaust system from combustion because the exhaust pipe is smaller
Studi Pengaruh Variasi Bentuk Mata Pisau Pada Mesin Pemotong Rumput Dengan Simulasi Solidworks: Study Of The Effect Of Blade Shape Variations On Lawn Mower With Solidworks Simulation Mojibur Rohman; Moh. Febri; Ratna Fajarwati Meditama; Bella Cornelia Tjiptady
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 11 No. 2 (2023)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

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

Abstract

Rumput adalah tanaman yang mudah dijumpai. Namun untuk memotong  rumput masih menggunakan sabit. Maka diperlukan inovasi mesin pemotong rumput. Penelitian ini membuat desain mata pisau yang aman. Metode pengambilan data, mendesain variasi mata pisau, kemudian diberikan beban 650N dengan material plain carbon steel, melihat stress, displacement dan factor of safety. Berdasarkan hasil analisa pengaruh variasi pisau yaitu, Pengujian  jajar genjang 1sisi dengan force 650N hasil stress 232,9N/mm2(MPa), displacement 0,22mm, dan factor of safety 2,84, pengujian 2sisi hasil stress 231,4N/mm2(MPa), displacement 0,28mm, dan factor of safety 2,86. Pengujian persegi panjang 1sisi hasil stress 203,9N/mm2(MPa), displacement 0,23mm, dan factor of safety 3,25, pengujian 2sisi hasil stress 201,2N/mm2(MPa), displacement 0,231mm, dan factor of safety 3,29. Pengujian trapesium 1sisi hasil stress 244,1N/mm2(MPa), displacement 0,24mm, dan factor of safety 2,71, pengujian 2sisi hasil stress 233,4N/mm2(MPa), displacement 0,239mm, dan factor of safety 2,83. Kesimpulan dari penelitian ini dapat dipilih dalam pembuatan mata pisau adalah persegi panjang Kata kunci : Mata Pisau, Solidworks, Inovasi, Variasi Mata pisau, kinerja. Grass is an easy plant to find. But to mow the grass still use a sickle. Then we need innovation lawn mowers. This research makes a safe blade design. Data collection method, designing a variation of the blade, then given a load of 650N and the material plain carbon steel, sees tress, displacement and safety factors. According to analysis result of knife variations effect, namely, 1-sided parallelogram test with force 650N yield stress 232,9N/mm2(MPa), displacement 0.22mm, and factor of safety 2.84, 2-sided testing results stress 231,4N/mm2(MPa), displacement 0.28mm, and factor of safety 2.86. Testing the 1-sided rectangle results stress 203,9N/mm2(MPa), displacement 0,23mm, dan factor of safety 3.25, 2-sided testing results stress 201.2 N/mm2(MPa), displacement 0.231mm, and factor of safety 3,29. Trapezoid test 1-sided results stress 244,1N/mm2(MPa), displacement 0.24mm, and factor of safety 2.71, 2-sided testing results stress 233,4N/mm2(MPa), displacement 0,239 mm, dan factor of safety 2.83. The conclusion from this research can be chosen in making the blade is rectangular.