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PEMBUATAN FILAMEN BIODEGRADASI PRINTER 3D METODE FUSED DEPOSITION MODELLING DARI POLIMER SINTESIS DAN HIDROKSIAPATITE BOVINE UNTUK IMPLAN SCAFFOLDS REKONSTRUKSI MANDIBULA Saifudin Alie Anwar; Solechan Solechan
Prosiding SNATIF 2016: Prosiding Seminar Nasional Teknologi dan Informatika
Publisher : Prosiding SNATIF

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Abstract

Abstrak Penyebab kematian di dunia salah satunya penyakit kanker dan menyumbang sekitar 0.2% dari jumlah kasus kanker. Setiap tahun tidak kurang dari 240.000 kasus kanker tulang terjadi di Indonesia, terdiri dari dari tumor jinak dan tumor ganas. Tercatat 455 kasus tumor tulang yang terdiri dari 327 kasus tumor tulang ganas (72%) dan 128 kasus tumor tulang jinak (28%) dalam kurun waktu 10 tahun (1995-2004) di RSCS DR. Cipto Mangunkusumo Jakarta. Tumor mandibula berpotensi menimbulkan gangguan penyembuhan tulang mandibula. Adapun prosedur reseksi tumor mandibula menimbulkan defek mulai dari celah pada tulang alveolus sampai dengan diskontinuitas tulang mandibula. Rekonstruksi mandibular bertujuan untuk pembentukan kontinuitas mandibula salah satunya menggunakan media scaffolds. Penelitian ini bertujuan untuk menentukan komposisi yang optimal, temperatur semi cair yang rendah dan waktu degradasi lebih cepat. Metode penelitian dengan variabel komposisi campuran 90:10, 85:15, dan 90:10. Spesimen diuji XRD, SEM, dan TGA. Hasil uji untuk komposisi campuran terbaik pada komposisi 90:10, untuk interface baik, butiran kecil, temperatur rendah, ikatan antar muka lebih kuat, dan material mudah terdegradasi. Kata kunci : filamen, hydroxyapatite, scaffolds, tumor, lebur.
ANALISA PENGARUH PANJANG PIPA SPIRAL KATALIS HYDROCARBON CRACK SYSTEM UNTUK PENGHEMAT BAHAN BAKAR SEPEDA MOTOR 4 TAK HONDA MEGA PRO TERHADAP WAKTU PERFORMA MESIN, TEMPERATUR DAN KEBISINGAN Sena Mahendra; Radimin Radimin; Solechan Solechan
Prosiding SNATIF 2016: Prosiding Seminar Nasional Teknologi dan Informatika
Publisher : Prosiding SNATIF

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Abstract

AbstrakSepeda motor yang hemat kaitanya bahan bakar irit. Banyak pabrikan sepeda motor yang mengeluarkan produk paling irit, tetapi mempengaruhi performa daya mesin. Sepeda motor bahan bakar irit dipilih karena harga bahan bakar yang mahal. Maka perlu inovasi pembuatan alat untuk penghematan bahan bakar untuk menaikan kinerja daya mesin. Tujuan penelitian ini membuat desain pipa katalis HCS model spiral dengan memanfaatkan uap bahan bakar pertamax Metode penelitian menggunakan variabel bebas putaran mesin, panjang pipa,dan volume pertamax. Variabel terikat dengan menguji waktu performa mesin, temperatur mesin, kebisingan, dan daya mesin sepeda motor Mega Pro 156.7 cc. Penambahan panjang pipa spiral katalis dan volume pretamax menambah waktu performa mesin. Panjang 500 cm dan 2000 ml volume pretamax pada kecepatan putaran mesin 2000 rpm mampu menghemat bahan bakar selama 27 detik atau 62,7%. Selain waktu performa mesin, desain pipa spiral katalis ini juga mengurangi temperatur 6oC atau 5%, dan kebisingan 4oC atau 5%. Bertambahnya pipa spiral katalis HSC dan volume pretamax dapat meningkatkan kandungan hidrokarbon bahan bakar yang masuk ke ruang pembakaran yang disuplay dari uap pretamax. Panjang pipa spiral katalis HCS 600 cm menurunkan waktu performa mesin, ini disebabkan daya vakum intake manifold berkurang karena panjangnya pipa katalis. Dan Nilai oktan tinggi mempengaruhi pembakaran mesin sempurna, knocking berkurang, temperatur mesin rendah, dan kebisingan menurun.Kata kunci: Spiral, katalis, performa mesin, pertamax, tabung.
Peningkatan Mesin Cetak dan Kekuatan Mekanik Batu Bata Press Menggunakan Mesin Cetak Kapasitas 1000 Buah/Jam pada Usaha Keluarga di Desa Kalipucang Kulon Solechan Solechan; Aris Kiswanto
Jurnal Surya Masyarakat Vol 1, No 1 (2018): November 2018
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jsm.1.1.2018.40-46

Abstract

Kota Jepara salah satu kota dimana terdapat peluang usaha untuk memenuhi kebutuhan batubata. Sentra batu bata salah satunya berada di desa Kalipucang Kulon kecamatan Welahan. Dari kekuatan mekanik batu bata masih di bawah standar, densitas rendah, porositas tinggi dan warna merah. Batu bata mengandung pasir besi dan jenis tanah lempung merah. Usaha pembuatan batu bata di desa Kalipucang Kulon sebanyak 54 buahyang terdaftar di kantor Kelurahan tahun 2015. Banyak terjadi permasalahan di mitra UK batu bata Kalipucang Kulon, antara lain, pembuatan batu bata konvesnsional dan ukuran batu bata tidak standar SNI. Aspek pemasaran masih menunggu pembeli, manajeman usaha bersifat kekeluargaan dan minimnya strategi pemasaran,modal terbatas, dan kurangnya informasi mengakses pinjaman modal. Tujuan pengabdian pada masyarakat Program Kemitraan Masyarakat (PKM) yaitu pembuatan mesin batu bata untuk meningkatkan produksi, pembuatan dan pemeliharaan website e-commerce untuk jual produk batu bata, manajemen usaha, strategi pemasaran, member informasi dan pendampingan mendapatkan modal usaha. Metode yang dipakaiadalah Workshop pembuatan dan pengoperasian mesin batu bata press sesuai standar SNI, pelatihan pembuatan dan pemeliharaan website e-commerce, memberikan pelatihan kewirausahaan, strategi pemasaranproduk, member informasi dan pendampingan untuk mendapatkan modal usaha,dan cara mengakses bantuan dana. Hasilnya dengan penerapan mesin batu bata press manpu meningkatkan 880% dibandingkan denganmanual tenaga manusia. Kekuatan mekanik batu bata merah paling optimal dimiliki oleh komposisi campuran dengan kode B3 dengan kekuatan tekan 41.712 Kg/cm2 dan densitas 25,87 kg/m3. Peningkatan produksi dengan sifat mekanik batu bata press mampu meningkatkan pendapatan usaha keluarga dan kualitas batu bata.Kata kunci: Kalipucang, batu bata, mesin, ektruder, densitasAbstractJepara is one of town where there is a business opportunity to meet the need of bricks. The brick industry center is located in Kalipucang Kulon Village, Welahan Subdistrict. Seen from the mechanical power, the bricks are still below the standard, with low density, high porosity, and red in color. Bricks contain iron sand and are made of red clay soil. There are 54 registered business entities of bricks in Kalipucang Kulon Village in 2015. There have been a lot of problems faced by the partner of the community service program in Kalipucang Kulon Village, such as the brick making is still conventional and the dimensions are not based on the (Indonesian National Standard or SNI. The marketing aspect is that they still wait for buyers. Besides, the management is family-based, the marketing strategies are still minimal, the capical is limited, and there is a lack of information about how to access capital loan. The Community Partnership Program was aimed at creating a brick making machine that would increase the production rate, creating and maintaining e-commerce website to sell the bricks, teaching about business management and marketing strategies, and giving information and assistances to get venture capital. Method applies was by giving a workshop on creating and operating press brick machine based on the SNI, training on creating and maintaining ecommerce website, training on entrepreneurship, and product marketing strategies, and giving information and assistances to get venture capital and how to access capital loan. The result showed that by using the press brick machine, the production had been increasing up to 880% compared to when making manually. The most optimal mechanical power of red bricks was when the bricks were made of the composition of mixture coded B3 with compressive strength of 41.712 Kg/cm2 and density of 25,87kg/m3. The production increase using press brick machine has improve the family’s revenue as well as the bricks’ quality itself.
Peningkatan Mesin Cetak dan Kekuatan Mekanik Batu Bata Press Menggunakan Mesin Cetak Kapasitas 1000 Buah/Jam pada Usaha Keluarga di Desa Kalipucang Kulon Solechan Solechan; Aris Kiswanto
Jurnal Surya Masyarakat Vol 1, No 1 (2018): November 2018
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1048.356 KB) | DOI: 10.26714/jsm.1.1.2018.40-46

Abstract

Kota Jepara salah satu kota dimana terdapat peluang usaha untuk memenuhi kebutuhan batubata. Sentra batu bata salah satunya berada di desa Kalipucang Kulon kecamatan Welahan. Dari kekuatan mekanik batu bata masih di bawah standar, densitas rendah, porositas tinggi dan warna merah. Batu bata mengandung pasir besi dan jenis tanah lempung merah. Usaha pembuatan batu bata di desa Kalipucang Kulon sebanyak 54 buahyang terdaftar di kantor Kelurahan tahun 2015. Banyak terjadi permasalahan di mitra UK batu bata Kalipucang Kulon, antara lain, pembuatan batu bata konvesnsional dan ukuran batu bata tidak standar SNI. Aspek pemasaran masih menunggu pembeli, manajeman usaha bersifat kekeluargaan dan minimnya strategi pemasaran,modal terbatas, dan kurangnya informasi mengakses pinjaman modal. Tujuan pengabdian pada masyarakat Program Kemitraan Masyarakat (PKM) yaitu pembuatan mesin batu bata untuk meningkatkan produksi, pembuatan dan pemeliharaan website e-commerce untuk jual produk batu bata, manajemen usaha, strategi pemasaran, member informasi dan pendampingan mendapatkan modal usaha. Metode yang dipakaiadalah Workshop pembuatan dan pengoperasian mesin batu bata press sesuai standar SNI, pelatihan pembuatan dan pemeliharaan website e-commerce, memberikan pelatihan kewirausahaan, strategi pemasaranproduk, member informasi dan pendampingan untuk mendapatkan modal usaha,dan cara mengakses bantuan dana. Hasilnya dengan penerapan mesin batu bata press manpu meningkatkan 880% dibandingkan denganmanual tenaga manusia. Kekuatan mekanik batu bata merah paling optimal dimiliki oleh komposisi campuran dengan kode B3 dengan kekuatan tekan 41.712 Kg/cm2 dan densitas 25,87 kg/m3. Peningkatan produksi dengan sifat mekanik batu bata press mampu meningkatkan pendapatan usaha keluarga dan kualitas batu bata.Kata kunci: Kalipucang, batu bata, mesin, ektruder, densitasAbstractJepara is one of town where there is a business opportunity to meet the need of bricks. The brick industry center is located in Kalipucang Kulon Village, Welahan Subdistrict. Seen from the mechanical power, the bricks are still below the standard, with low density, high porosity, and red in color. Bricks contain iron sand and are made of red clay soil. There are 54 registered business entities of bricks in Kalipucang Kulon Village in 2015. There have been a lot of problems faced by the partner of the community service program in Kalipucang Kulon Village, such as the brick making is still conventional and the dimensions are not based on the (Indonesian National Standard or SNI. The marketing aspect is that they still wait for buyers. Besides, the management is family-based, the marketing strategies are still minimal, the capical is limited, and there is a lack of information about how to access capital loan. The Community Partnership Program was aimed at creating a brick making machine that would increase the production rate, creating and maintaining e-commerce website to sell the bricks, teaching about business management and marketing strategies, and giving information and assistances to get venture capital. Method applies was by giving a workshop on creating and operating press brick machine based on the SNI, training on creating and maintaining ecommerce website, training on entrepreneurship, and product marketing strategies, and giving information and assistances to get venture capital and how to access capital loan. The result showed that by using the press brick machine, the production had been increasing up to 880% compared to when making manually. The most optimal mechanical power of red bricks was when the bricks were made of the composition of mixture coded B3 with compressive strength of 41.712 Kg/cm2 and density of 25,87kg/m3. The production increase using press brick machine has improve the family’s revenue as well as the bricks’ quality itself.
Dissemination of appropriate technology in the form of Computer Numerically Controlled wood lathes to increase the productivity of the furniture business group in Sekuro Village, Jepara Solechan Solechan; Rubijanto Juni Pribadi
Community Empowerment Vol 7 No 7 (2022)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.59 KB) | DOI: 10.31603/ce.5522

Abstract

The local furniture industry is unable to compete with Chinese products, one of which is a furniture producer in Sekuro Village, Mlonggo District, Jepara Regency, Central Java. The problems faced are relatively high prices, ancient designs, old processes, conventional machines, and low quality of human resources (HR). The purpose of this community service is the dissemination of lathe technology, from conventional to automatic. The community service method is carried out by training on the design of a CNC wood lathe and its use. Productivity is measured based on the feed rate of a CNC wood lathe to surface roughness and processing time. As a result, the highest surface roughness is in the CNC 1 lathe process with a feed rate of 80 m/min 13.24 m. Meanwhile, based on time, CNC wood lathe is more efficient than manual by 37% with a feed rate of 60 m/min for 25:35 minutes. In addition, CNC wood lathe results are more precise, the outer surface is smoother, and the processing time is faster.
COATING ON COMPOSITE PISTON HEAD WITH ZIRCONIA POWDER USING SPRAY THERMAL COATING TO INCREASE MECHANICAL STRENGTH AND FUEL SAVING solechan MT
TRAKSI Vol 23, No 1 (2023): TRAKSI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/traksi.23.1.2023.%p

Abstract

Motor vehicle pistons are often damaged. Most of the damage to the piston is worn and broken. Waste aluminum piston added with SiC can be used for the manufacture of new pistons, but low heat resistance, easy wear and high abrasion. How to overcome these shortcomings, carried out the process of coating the composite piston head with zirconia powder using a thermal spray coating. This process is able to improve mechanical properties and save fuel, but its strength is still below the standard strength of the original piston. The research objective is to analyze the effect of the composition of the material mixture, the number of coatings and the firing distance on the composite piston head on mechanical strength and fuel saving. The research method is to coat the composite piston head using a thermal spray coating using zirconia powder. The research variable is by varying the composition of the piston material mixture, the number of coatings and the firing distance of the coating. Coating material of zirconia or for grain size of 20 µm. Optimal results are obtained by the composition of the piston mixture on the P3 code specimen, coated 5 times, and the firing range is 8 cm. For hardness of 77.29 HRV, wear of 1.50E-03 mm2/Kg and fuel saving of 4.36% compared to the original piston.