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All Journal International Journal of Advances in Applied Sciences Rekayasa Mesin Journal of Mechanical Engineering Science and Technology Jurnal Teknik Mesin dan Pembelajaran

Murdanto, Putut

Universitas Negeri Malang

Author-ID : 3224947

Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

Published : 9 Documents Claim Missing Document

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Articles

Analysis of Hardness, Microstructure, Macrostructure, and Fluidity of Al-Si with Eggshell Variation as Binder in Sand Casting Fitriyanto, Retnaldi; Puspitasari, Poppy; Murdanto, Putut
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

Metal casting process can be described as the process of making object by melting metal then poured into the desired mould. The mould that is commonly used is sand moulding. Binder which commonly used in sand casting process is bentonite. Bentonite is kind of mineral which can be run out if it is used continuously. The background of this study was to analyse the other binder that could reduce the use of bentonite by utilizing eggshell. This study aimed to analyse the hardness, microstructure, macrostructure, and fluidity of the cast which yielded by using variations of eggshell. The method that used was experimental method with a model of one-shot case study with descriptive analysis. The study result showed that the highest value of fluidity test was found at variation of 7% eggshell and 3% bentonite with hardness value of 180.86 HV. There were found several defects, casting result with variation of 4% eggshell and 3% bentonite found that there were ± 28 pinhole defects and ± 20 open grain defects. There were found ± 65 pinhole defects and ± 30 open grain structure defects in the casting result with variation 7% eggshell and 3% bentonite. The casting result with variation 10% eggshell and 3% bentonite had ± 50 pinhole defects and ± 30 open grain structure defects.

Casting Defects And Mechanical Properties of Al-Si Alloy with Bangkalan Local Clay as Sand Casting Binder Syaifullah, Candi Galih; Saputra, Ayik; Ruhyatul, Shabrina; Murdanto, Putut
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 1 (2018)
Publisher : Universitas Negeri Malang

This research is aimed to know the defect of casting, tensile strength, and hardness of Al-Si alloy to the variation of binder. The research method used is descriptive quantitative research method. This because the data is expressed in the form of numbers. This research uses pre-experimental research design using one-shot case study model. Based on the results of the study, it was found that most pinhole defects were owned by specimens using 90% bentonite binder that is 59 defects. Whereas the pinhole defect which is at least owned by the specimens using bangkalan local clay binder 9% that is 31 defects. The most common open grain structure defect is owned by metal casting specimens using a 9% bentonite binder, which is 81 defects. Whereas the defect of open grain structure is at least owned by the specimen result of casting of metal clad with bangkalan local clay 3% which amounted to 40 defects. The result of the research using bangkalan local clay binder of 9% has higher tensile strength than other binder. This is because the characteristic of bangkalan local clay which has a high content of calcium (Ca) is 92,81%. The value of the tensile strength of the bangkalan local clay is 12,8712 (kg/mm2), whereas the bentonite which is said to be the ideal binder for the mold has a tensile strength of 10,1612 (kg/mm2). The highest hardness value is owned by Al-Si alloy casting specimen with bend mixture variation of bangkalan local clay 9% that is 128,033 HV. While the lowest hardness value is owned by Al-Si alloy casting foundry with 9% bentonite binder 114,4 HV

Analisis Sifat Fisik dan Kompresibilitas Nanopowder Zinc Oxide (ZnO) sebagai Alternatif Material Amalgam Qosim, Nanang; Murdanto, Putut; Puspitasari, Poppy
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Severe effects of the mercury use on health as an amalgam material have required an alternative material in order to eliminate it from amalgam composition. This research was conducted to analyze the physical properties and compressibility of ZnO nanopowder as an alternative amalgam material. The physical properties including morphology, dimensions, and the atomic ratio were analyzed by SEM, XRD-XRF and EDX. Further, the compressibility was conducted by using hydraulic press machine. The results showed that ZnO has particle size of 14.34 nm with morphology classified as nanorods. In the compressibility test, both the variation of compression loadings and holding time have brought an effect on the significant increase of ZnO nanopowder density.

Physical Properties and Compressive Strength of Zinc Oxide Nanopowder as a Potential Dental Amalgam Material Nanang Qosim; Putut Murdanto; Poppy Puspitasari
International Journal of Advances in Applied Sciences Vol 7, No 2: June 2018
Publisher : Institute of Advanced Engineering and Science

In this study, the application of nanotechnology was applied in the dentistry field, especially in the innovation of dental amalgam material. To date, mercury (Hg) has been used widely as dental amalgam material with consideration of the cheap price, ease of use, and good mechanical strength. However, last few years, many problems have been faced in the dentistry field due to the use of mercury. Hence, new material is needed as an innovation to eliminate the mercury from dental amalgam composition. This research was conducted to analyze the physical properties and compressive strength of zinc oxide (ZnO) nanopowder as a potential dental amalgam material. The physical properties such as morphology and dimensions were analyzed by SEM and XRD. Further, the compression test was conducted by using hydraulic press machine. The results showed that the ZnO nanopowder analyzed has the particle size of 14.34 nm with the morphology classified as nanorods type. On the compression load of 500 kg, the average of ZnO green density is 3.170 g/cm3. This value experienced the increase of 4.763% when the load was set to 1000 kg, and 7.539% at 2000 kg. The dwelling time also took the same effect. At 30 seconds, the average of ZnO green density is 3.260 g/cm3. This value experienced the increase of 0.583% at 60 seconds and 3.098% at 90 seconds.

Analysis of Hardness, Quality and Fluidity Al-Si Casting Result by Using Clamshell (Placuna placenta) as The Mixture of Sand Moulding SMSN Shikh Zahari; Saif Aziz Saputra; Putut Murdanto
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

Metal is an element that cannot be separated from human life. Almost all of human activities includes metal element in it. Metals can be formed through several ways, one of which is metal casting. Metal casting is one of technique in producing products where the metal was melted in crucible and then poured in a moulding which is similar to the original shape of the product. Moulding that are commonly used are sand moulding. Commonly, binder which used in sand casting process is bentonite. Bentonite, was kind of mineral which can be run out during its usage. This study aimed to analyse the alternative binder to reduce the usage of bentonite. This study analysed the using of clamshell as the mixture of moulding sand against the hardness, quality and fluidity of Al-Si casting result. The highest hardness value was found at the specimen with the mixture of 11% clamshells with an average hardness value of 122.96 HV. The highest value of fluidity also presented in the specimen which used mixture of 11% clamshells that resulted the length of specimen at 789 mm. Based on the analysis of casting defect showed that specimen which used 5% clamshells had the fewest and the smallest defect compared the other specimens.

The Analysis of Permeability and Mechanical Properties of Sand Moulding Using Mixed Material Clamshell (Placuna placenta) on Sand Casting Kritchakhris Nawettanaprasert; Zakaria Bagus Aminanta; Putut Murdanto
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

This study objected to determine mechanical properties of sand moulding by conducting tensile test, compressive and shear test, and also permeability test. This study also had the other objective that was analyse clamshell (Placuna placenta) as mixture material for bentonite as binder in manufacturing sand moulding in order to reduce the usage of bentonite. The method that used in this study was pre-experimental method with One-Shot Case Study model. The best mechanical properties obtained on sample 3 clamshell 11%, permeability results obtained was 190 ml/min, tensile strength results obtained for the dry sand was 0.015 kg/cm2, compressive strength obtained for the dry sand was 2.91 kg/cm2, and the shear strength of sand moulding in dry condition was 0.92 kg/cm2.

Hubungan Kemandirian Belajar, Motivasi Belajar dan Fasilitas Bengkel Pemesinan dengan Hasil Belajar Paket Keahlian Teknik Pemesinan Siswa Kelas Xi di Smk PGRI 2 Jombang krisdianto hadi; purnomo purnomo; Putut murdanto
Jurnal Teknik Mesin dan Pembelajaran Vol 1, No 1 (2018)
Publisher : Universitas Negeri Malang

Tujuan penelitian ini adalah untuk mengetahui hubungan kemandirian belajar, motivasi belajar, dan fasilitas bengkel pemesinan dengan hasil belajar paket keahlian teknik pemesinan. Analisis yang digunakan yakni, kuantitatif deskriptif korelasional. Sampel yang digunakan penelitian ini berjumlah 94 responden. Hipotesis yang diajukan adalah hubungan secara parsial dan simultan antara kemandirian belajar, motivasi belajar, dan fasilitas bengkel pemesinan dengan hasil belajar paket keahlian teknik pemesinan. Hasil pengujian hipotesis (1) uji secara simultan terdapat hubungan yang positif dan signifikan antara kemandirian belajar, motivasi belajar, dan fasilitas bengkel pemesinan dengan hasil belajar paket keahlian teknik pemesinan, (2) secara parsial tidak ada hubungan yang signifikan antara kemandirian belajar dengan hasil belajar paket keahlian teknik pemesinan, (3) ada hubungan yang signifikan antara motivasi belajar dengan hasil belajar paket keahlian teknik pemesinan, (4) ada hubungan yang signifikan antara fasilitas bengkel pemesinan dengan hasil belajar paket keahlian teknik pemesinan.

Analisis Sifat Mekanik dan Permeabilitas Pasir Cetak Menggunakan Bahan Campuran Kaolin Pada Sand Casting Ananda Rizki Acmad Diasa Putra; Putut Murdanto; Wahono wahono
Jurnal Teknik Mesin dan Pembelajaran Vol 1, No 2 (2018)
Publisher : Universitas Negeri Malang

Sand Casting atau cetakan pasir merupakan suatu cetakan yang umum digunakan pada teknik pengecoran logam. Kaolin merupakan masa batuan yang tersusun dari material lempung berwarna putih atau krem. Tujuan penelitian ini adalah untuk mengetahui pengaruh campuran kaolin terhadap sifat mekanik dan permeabilitas pada kondisi pasir basah dan kering. Metode yang digunakan dalam penelitian ini adalah experimental dengan pendekatan deskriptif. Bahan campuran kaolin dibuat bervariasi sebesar 1% ,4%, 7%, 10%, dan 13%. Temuan penelitian yang didapatkan yaitu: (1) kekautan tarik tertinggi terdapat pada variasi kaolin 13% yaitu sebesar 0,07 Kg/cm2, (2) kekuatan tekan tertinggi terdapat pada variasi kaolin 13% sebesar 3,11 Kg/cm2, (4) kekuatan geser tertinggi terdapat pada vaiasi kaolin 7% sebesar 0,46Kg/cm2, (5) permeabilitas tertinggi terdapat pada variasi kaolin 10% sebesar 230 ml/menit, (6) variasi 1% dan 4% tidak dapat digunakan karena pada saat pembuatan spesimen atau sampel terjadi ambrol atau hancur.

Analysis of the Effect of Guide Vane Opening Variations and Total Blades on Cross Flow Turbine Performance Using Computational Fluid Dynamic Navis, Akbar; Suryanto, Heru; Murdanto, Putut
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 4, No 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v4i22020p072

Indonesia is an agrarian country that continuously produces water, so it has the potential to develop a hydroelectric power plant. Computational Fluid Dynamic (CFD) application could be used to be an economical, quick, and efficient approach to improve the engineering design and turbine performance. This research aimed to find the effect of guide vane opening variations and total blades on cross-flow turbine performance using CFD simulation. This research used experimental modelling method with ANSYS program for turbine design with 22, 24, and 26 turbine blades and guide vane opening variations of 12°, 16°, 20°, 24°, and 36°. The data were collected by reviewing the simulation results after the numerical calculation process. The results showed that the cross-flow turbine performance was improving along with the increasing guide vane opening. The optimum turbine performance (power and efficiency) was obtained at 24° opening of guide vane and 26 total blades, producing 868.53 W power with 75.16% efficiency.

Co-Authors Ananda Rizki Acmad Diasa Putra Fitriyanto, Retnaldi Heru Suryanto krisdianto hadi Kritchakhris Nawettanaprasert Nanang Qosim Navis, Akbar Purnomo Purnomo Rr. Poppy Puspitasari Ruhyatul, Shabrina Saif Aziz Saputra Saputra, Ayik SMSN Shikh Zahari Syaifullah, Candi Galih Wahono . Zakaria Bagus Aminanta

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