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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Rekayasa Mesin Jurnal Pengabdian UntukMu NegeRI Jurnal Pemberdayaan Masyarakat Madani (JPMM) Jurnal Surya Teknika Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Journal of Material Processing and Characterization (JMPC) Teknologika Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Proksima BATOBO: Jurnal Pengabdian Kepada Masyarakat Jurnal Polimesin
Dedy Masnur, Dedy
Universitas Riau
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Pengaruh Penambahan Zat Aditif (Calcium Hypochlorite) Terhadap Coolant Properties (Viscosity) Minyak Sawit Skp, Buma Gempa; Masnur, Dedy; HS, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Cutting fluid (coolant) are required in the machining processes. Most of cutting fluid are from mineral oil, and they are as unrenewable resource, therefore look for alternative resources ofmineral oil, which derived from vegetables oil. Palm oil have potency based of cutting fluid, however of coolant properties increased additive. This research want investigate effect ofadditive on phiysical properties of coolant. The method on mixture combining palm oil and additive (calcium hypochlorite) are conducted take of three proportion (95:5), (90:10), (85:15), the results from mixture the tested physical properties of viscosity at 40oC and 100oC of temperature. The results acknowledge the addition of (calcium hypochlorite) with palm oileffects on phiysical properties of coolant, the greater the percentage of calcium hypochlorite viscosity increased.Keywords: Cutting fluid (coolant), palm oil, additive, calcium hypochlorite, physical properties.
Studi Kekasaran Permukaan Produk Investmen Casting Aluminium Minuman Kaleng Bekas Dengan Parameter Temperatur Tuang Dan Ukuran Butir Lempung Adri, Adri; Masnur, Dedy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Rarefaction inside of intake manifold can improve motorcycles engine performance. Intake manifold produce by sand casting method limited for low surface roughnes. Investment casting method might produce low surface roughnes, therefore further study must carried out to observe process parameters namely pouring temperatures and clay grain size. Current study has carried out in order to observe the influence pouring temperatures and clay grain size on surface roughness. Aluminium beverage tins and local natural clay were use raw material for molding. The clay sieved to obtain grain sizes of 60, 100, 200 mesh respectively. The wax clusters were coated with ceramic slurry up to 10 mm thickness and final coat was with sika to strengthen the mould. The ceramic shell were dewaxed at 120ºC and then sintered at 350ºC for 60 minutes. Aluminium beverage tins were cast atthe pouring temperatures 650, 700, and 750°C. The surfaces products tested by surface roughness tester. Theresults show the surface roughness increases as the pouring temperature increase. At pouring temperature 650°C to 700°C was 7.15%, while at pouring temperature 650oC to 750oC was 130.27%. Surface roughness increases as the clay grain size decreases. At clay grain size 60 to 100 mesh was 8.24, while at clay grain size 60 to 200 mesh was 186.93%.Keywords: Investment casting, surface roughness, clay
Studi Pemanfaatan Limbah Kaca Dan Piston Bekas Sebagai Material Alternatif Kanvas Rem Sepeda Motor Dengan Menggunakan Metode Metalurgi Serbuk Gunawan, Gilang; Nawangsari, Putri; Masnur, Dedy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Waste glass and piston can be used as alternative material to non-asbestos motorcycle brake pads based on their properties. Waste glass used as a reinforce, the piston used as a filler, and phenolic resin used as a binder. Those materials were mechanically transformed into powder with 60,100, and 60 mesh respectively. The glass, piston, and phenolic resins powder were varied into five different compositions which are A (10% glass, 50% piston, 40% phenolic resin), B (20% glass, 40% piston, 40% phenolic resin), C (30% glass, 30% piston, 40% phenolic resin), D (40% glass, 20% piston, 40% phenolic resin), E (50% glass, 10% piston, 40% phenolic resin). The powder was mixed at 45 rpm for 30 minutes, then 166 Bar initial pressure was applied in single action for 2 minutes, next it was pressed at 196 Bar in single action hot compacting at 150° for 5 minutes holding time. The green bodies were sintered at 150°C for 4 hours, finally those samples were evaluated by hardness test and wear test. The results show, the composition A has the closest hardness and wear value to commercial products, 40.549 HVN and 8.826x10-12 m3/m accordingly.Keywords: Brake Pads, Waste Glass, Waste Piston
Analisis Pengaruh Ukuran Serbuk Kaca Pada Pembuatan Kanvas Rem Sepeda Motor Dengan Pengisi Serbuk Piston Bekas Anggria, Feldy; Nawangsari, Putri; Masnur, Dedy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Waste glass and piston can be used as alternative material to non-asbestos brake pads with powder metallurgy method. Waste glass was used as a reinforce, the piston was used as a filler, and phenolic resin was used as a binder. This study purposes to investigates the influence of size the glass powder particles on the wear resistance and hardness. The powders composition of phenolic resin, piston, and glass was 40%, 40% and 20% respectively, based on volume fraction. The glass powder was mixed in three varied sizes which is 60, 80, and 100 mesh. The mixing process was conducted in 30 minutes mixing time at 45 rpm. 166 bar preliminary pressure was applied at the beginning of single action compacting for 2 minutes then 196 bar and in single action hot compacting at 150°C for 5 minutes, then it was sintered at 150°C for 4 hours. Then, the samples were followed hardness test and wear test. The results showed the composition of the 60 mesh glass has the closest hardness and wear value to the commercial product which is 41.296 HVN and 8.2795 x 10-12 m3/m.Keyword : Brake pads, Waste glass, Particle size
Studi Potensi Pasir Sungai Di Sungai Rokan Sebagai Pasir Cetak Pada Pengecoran Logam Sihite, Pernando; Masnur, Dedy; Badri, Muftil
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Rokan river is one of the the four biggest river in Province of Riau which contains abundant of sand. The utilization of the sand has not reached an optimum level due to the limits of information for optimal profitability with it is not documented and therefore it is used only for building’s materials. However some literatures indicate that the sand is suitable for foundry use based on the physical characteristics. In this paper, a laboratory investigations of four critical foundry properties; clay content, Grain Finest Number (GFN), moisture content, and permeability of the sand is conducted. The outcome of this research to determine the potency of Rokan river’s sand as molding sand in Sand Casting. The result shows all the samples are potential as the molding sand through certain treatments. The most potential river sand is  downstream river’s sand with the following characteriscs: clay content 1.29%, GFN 27.25, moisture content 1.35% and gas permeability 10.9564 cm/min while the upstream river’s sand:  clay content 1.24%, GFN 17.94, moisture content 1.31% and gas permeability 12.6524 cm/min.  Keywords: Rokan River Sand, Characterization
STUDI POTENSI PASIR SUNGAI DI PROVINSI RIAU SEBAGAI PASIR CETAK PADA PENGECORAN LOGAM Pernando Sihite; Dedy Masnur; Muftil Badri; Putri Nawangsari
Jurnal Sains dan Teknologi Vol 13, No 2 (2014): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.793 KB) | DOI: 10.31258/jst.v13.n2.p%p

Abstract

Provinsi Riau memiliki potensi pasir sungai yang sangat melimpah karena dilalui 15 sungai diantaranya 4 sungai yang besar. Pemanfaatannya belum optimal karena digunakan untuk bahan bangunan saja, akan tetapi pasir sungai dapat dimanfaatkan sebagai pasir cetak pada pengecoran logam. Tujuan penelitian ini untuk mengetahui potensi pasir sungai di provinsi Riau yang dapat dimanfaatkan sebagai pasir cetak serta treatment untuk meningkatkan kualitas pasir sungai. Analisis potensi pasir sungai dilakukan dengan mengambil data karakterisasi masing-masing sampel pasir sungai. Karakterisasi pasir sungai diperoleh dengan melakukan pengujian yaitu pengujian kadar lempung, distribusi pasir, kadar air, dan permeabilitas. Hasil pengujian menunjukkan bahwa semua sampel pasir sungai berpotensi sebagai pasir cetak akan tetapi harus mengalami treatment. Pasir sungai yang paling berpotensi sebagai pasir cetak yaitu pasir sungai Kampar bagian hilir memenuhi kriteria kadar air (5,60%) dan permeabilitas (9,5895 cm/menit), pasir sungai Inderagiri bagian hulu dengan kadar air (6,00%) dan permeabilitas (9,9566 cm/menit) dan pasir sungai Inderagiri bagian hilir dengan kadar air (2,19%) dan permeabilitas (12,3741 cm/menit) sedangkan pasir sungai Rokan bagian hulu, Rokan bagian hilir dan Kampar bagian hulu hanya memenuhi kriteria permeabilitas (10,9564 cm/menit - 12,6524 cm/menit). Treatment yang harus dilakukan untuk sungai Rokan bagian hulu, Rokan bagian hilir dan Kampar bagian hulu yaitu penambahan lempung, air dan penghalusan butir sedangkan pasir sungai lainnya yaitu penambahan lempung, dan penghalusan butir.Kata kunci: pasir sungai, karakterisasi, pasir cetak, treatment
Studi Karakteristik Mekanik Dan Struktur Mikro Coran Aluminium Minuman Kaleng Latif Kuncoro Wasmi Apris; Dedy Masnur; M Dalil
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Scrap aluminum cans recycle processing through metal casting is a way to improve the economic value. Yet, this process could not instantly be carried out to produce parts without knowing the chararacteristics of mechanical and microstructure. This study investigates those characteristics in three different pour temperatures, 650°C, 700°C, and 750°C respectively and three die temperatures, 100°C, 200°C, and 300°C. The result showed that the hardness number of aluminum cast was decreased as well as increasing of pours and die temperatures. The highest hardness number was 67.615 VHN at 650°C pour temperature, but the lowest one was 58.327 VHN at 750°C pour temperature. The highest hardness number was 77.871 VHN at 100°C die temperature, but the lowest was 61.479 VHN at 300°C die temperature. Tensile strength values were increased at a pour temperature of 650°C to 700°C and decreased at pour temperature of 750°C. The highest tensile strength was 174.183 MPa at 700°C pour temperature and the lowest tensile strength was 110.900 MPa at 750°C pour temperature. The tensile strength was decreased as well as increasing of die temperature. The highest tensile strength was 177.473 MPa at 100°C die temperature and the lowest tensile strength was 108.317 MPa at 300°C die temperature. The microstructure results showed that at650°C pour temperature and 100°C die temperature with more thick flake lines (Mg) than thin flake lines (Mg). The 700°C pour temperature and 200°C die temperature had with more dominant thick flake lines (Mg) than thin flake lines (Mg). The 750°C pour temperature and 300°C die temperature had with more dominant thin flake lines (Mg) than thick flake lines (Mg).Keywords: Hardness, Tensile Strength, pour temperatures, die temperatures, microstructure
Pengaruh Cetakan Sillicone Rubber Dan Temperatur Tuang Lilin Terhadap Kualitas Pola Lilin Pada Investment Casting Harrianda Hudaya; Warman Fatra; Dedy Masnur
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Investment casting method is widely used in the industry, it could produce complex and high precision products.One of the important stage in the investment is the wax pattern production, because the quality of the castproduct depends on the quality of the wax pattern. Sillicone rubber in alternative mold material has goodformability, low thermal conductivity, as well as the low cost of raw materials and the processes compared withmetal. Mold sillicone rubber and pour wax temperature varied 55 ºC, 65 ºC and 75 ºC to investigate the effectof these variables on shrinkage of linear wax patterns and volume wax pattern which expressed as percentage.The lowest average of linear shrinkage is 0.65%, which obtained at temperature 55 ºC. The lowest percentage ofvolumetric shrinkage is 7.59 %, which obtained at temperature 55 ºC.Keywords : invesment casting, mold material, wax pour temperature, shrinkage
Studi Fluiditas Aluminium Minuman Kaleng Cair Dengan Variasi Temperatur Tuang Dan Ketebalan Rongga Andri Andri; Dedy Masnur
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pekanbaru has a potential to produce scrap of aluminum beverage cans, it is estimated about 4.5 tons per month in each collectors. Recycling of aluminum cans is still limited to transforming the cans into ingots, to produce an efficient product desing fluidity test as needed. to be examined on fluidity. Qudong method 1999, used in this research with varying pouring temperature; 650oC, 700oC, 750oC, die temperature; 100oC, 200oC, 300oC and cavity thickness; 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm. Fluidity increased with the increasing pouring temperature, with 55.77% at temperature 650oC-700oC and 72.75% at temperature 700oC-750oC. Fluidity increases with cavity thickness, maximum fluidity achieved at temperature 750oC at 4.0 mm with a length of 120 mm and minimum fluidity can be filled with molten metal is at 1.5 mm with a length of 2.67 mm.Keywords: fluidity, molten aluminum cans, pour temperature, cavity thickness.
Studi Lubricant Properties (Density) Dengan Penambahan Calcium Hypochlorite Rochman Saefudin; Nazaruddin Nazaruddin; Dedy Masnur
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The need of unrenewable source synthetic lubricating oil is increasing thus many researchs have been conducted to find the substitute. Palm oil is one of alternatives, however  direct use of palm oil as a lubricant remain cause problems namely high density of  palm oil leads to imperfect lubrication. It is necessary to find the correct additif which is able to improve the lubricant properties. This research evaluate the addition of calcium hypochlorite to density of Palm Oil. The samples were prepared in 250 ml  volume in three volume ratios which are (90:10), (85:15), and (80:20). The mixing process is conducted at 100 rpm and heated 120°C in 2 hours.The density test resultshows that calcium hypochlorite decreases the density of palm oil as follows 901 kg/m3 for 90:10,898 kg/m3for 80:15, and 897 kg/m3for 80:20. Keywords: Lubricants, Palm Oil, Calcium Hypochlorite, Density
Co-Authors Abdul Rahman Adri Adri Andi Putra Andri Andri Anggria, Feldy Anita Susilawati Anuar, Kaspul Aryandi Kusuma Asrian, Angga Awaludin Martin Azis, Azridjal Buma Gempa Skp, Buma Gempa Cupu, Dedi Rosa Putra Dea Musyafiroh Akbar Dedi Rosa P.C1 Dian Oktary Eko Saputra Erwin Ardiansyah Feblil Huda Gunawan, Gilang Harrianda Hudaya Harrianda Hudaya Herisiswanto Herisiswanto Indra Jun Noturas Irdoni HS Latif Kuncoro Wasmi Apris M Dalil Muftil Badri N. Nazaruddin Nazaruddin Nazaruddin Pernando Sihite Pernando Sihite, Pernando Putri Nawangsari Putri Nawangsari Putri Nawangsari Putri Nawangsari, Putri Putri Nawangsari, Putri Nawangsari Rahmadiza, Duta Rahmat Rosandi Rasyad, Abdur Ridwan Abdurrahman Rochman Saefudin Romy Romy Romy Seab Piseth Suyitno Suyitno Syafri Syafri Syafri Viktor Malau Warman Fatra, Warman Yohanes