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All Journal Rekayasa Mesin Jurnal SOLMA Science Education and Application Journal Jurnal Pendidikan Teknik Mesin Undiksha JTM JILSA (Jurnal Ilmu Linguistik dan Sastra Arab)
Anshori, Mohammad
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Humanities Automotive Engineering Chemistry Computer Science & IT Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Analisis Perbandingan Kekasaran Permukaan Pada Proses Turning Muhammad Anshori; Priyagung Hartono; Unung Lesmanah
Jurnal Teknik Mesin Vol 11, No 01 (2018): Jurnal Teknk Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Salah satu karakteristik geometris yang ideal dari suatu komponen adalah permukaan yang halus. Untuk mendapatkan produk berkualitas maka harus dilakukan proses pemesinan yang baik. Kekasaran permukaan adalah salah satu akibat yang disebabkan oleh kondisi pemotongan dari proses pemesinan. Beberapa parameter yang berpengaruh terhadap kekasaran permukaan proses bubut seperti: jenis material dan kecepatan benda kerja. Dengan tujuan mengetahui kekasaran permukaan proses bubut, dilakukan pengujian dengan material ST. 42 dan ST. 60 dalam menghasilkan suatu produk. Pengujian dilakukan untuk menganalisa pengaruh jenis material dan kecepatan benda kerja, dengan parameter pemesinan yang ditentukan dan konstan, diantaranya kecepatan benda kerja, gerak makan, kedalaman potong. Pengujian tersebut dilakukan berulang kali, bertujuan untuk mengetahui perbedaan pengaruh jenis material dan kecepatan benda kerja secara teoritis dan empiris. Dengan menggunakan Surftest 301 untuk mendapatkan data kekasaran permukaan hasil proses pembubutan. Dari hasil penelitian, nilai kekasaran terendah adalah 4,26 terdapat pada  jenis material ST. 42 dengan kecepatan 224 rpm. Ditinjau dari perhitungan teori analysis of variance two way  dengan interaksi maka didapatkan hasil Fhitung = 11,7826 > Ftabel = 5,32 maka dapat disimpulkan bahwa jenis material dan kecepatan berinteraksi dalam menentukan kekasaran permukaan. Jadi perlakuan terhadap jenis material memberikan pengaruh yang berbeda terhadap nilai kekasaran permukaan dengan kecepatan benda kerja yang berbeda. Kata kunci: kekasaran permukaan, material, putaran.
OPTIMASI PROSES TURNING PADA AA 6061 DENGAN METODE MINIMUM QUANTITY LUBRICATION Anshori, Mohammad; Sonief, Achmad As'ad; Setyarini, Putu Hadi
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1429

Abstract

The use of vegetable oil-based cutting fluids under minimum quantity lubrication (MQL) lubrication has been suggested as a potential alternative. The cutting fluid is conveyed in the form of fine droplets with compressed air delivered precisely to the cutting zone. This study aims to determine the effect of variations of rubber seed oil and coconut oil as a cutting fluid on the surface roughness of the machining process using the MQL method. Researchers used the parameters of cutting fluid flow rate of 120 ml/hour and 180 ml/hour, cutting speed of 500 rpm, feed rate of 0.011 mm/rev, depth of cut of 0.5 mm with variations of coconut oil 10%, 20%, 30%. The results showed that the lowest surface roughness value was at a flow rate of 180 ml/hour with a 30% variation of 0.886 µm, while the highest surface roughness value was at a flow rate of 120 ml/hour with a 10% variation of 1.164 µm, meaning that the greater the flow rate and variation cutting fluid results in a decrease in surface roughness, this is due to the influence of the addition of coconut oil, the more coconut oil is added, the surface roughness value decreases. The surface roughness value decreases as the viscosity decreases, because the viscosity of coconut oil is lower than that of rubber seed oil, so that the flow rate of the cutting fluid is able to work optimally to lubricate the contact area.
Making Activator Materials Active Carbon From Wedi Skin Salak (Salacca edulis Reinw) With ZnCl2 Activator as Adsorbent to Reduce Fenol Content Ardianti, Aprillia Dwi; Anshori, Mohammad
Science Education and Application Journal Vol 6 No 2 (2024): Science Education and Application Journal
Publisher : Program Studi Pendidikan IPA, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v6i2.1102

Abstract

Making Activator Materials Active Carbon From Wedi  Skin Salak (Salacca edulis Reinw) With  ZnCl2 Activator as Adsorbent to Reduce Fenol Content.  Wedi salak skin in Bojonegoro as an activated carbon material can provide an alternative for activated carbon manufacturing materials by utilizing environmentally friendly natural materials. The wedi salak skin is modified by treatment in the sun, in the roast, and in the oven in the manufacture of activated carbon which is then activated with ZnCl2 and then tested the adsorbs power of this salak skin activated carbon against phenol reduction. The adsorbent material that reduces the concentration of phenol the most is the roasted adsorbent material with a final phenol concentration of 2.15 mg/L so that the concentration of phenol absorbed is 297.85 mg/L at a mass of 1.5 g. The results of the analysis show that each variation of the activated carbon variation can reduce the concentration of phenol. The results obtained from this study are the type of activated carbon material whose highest absorption efficiency is the type of activated carbon material roasted at 99.28% with a mass of activated carbon of 1.5 g. Based on the results of the analysis, it can be seen that each variation of the type of activated carbon material will experience a decrease in concentration as the mass of the adsorbent increases. The greater the mass of the adsorbent, the adsorption ability will also increase. Each type of activated carbon material also experienced an increase in percent removal along with an increase in adsorbent mass. The results of research on the effect of activated carbon mass, also show that the adsorption capacity value decreases with increasing adsorbent mass. In this research data, the largest capacitance value was 112.87 mg/g at the smallest mass of 0.5g. The decrease in adsorption capacity is caused by the active side of the adsorbent that has not all bonded with the adsorbate.
UTILIZATION OF KITCHEN LEMONGRASS AROMATHERAPY CANDLES AS A DENGUE FEVER PREVENTION STRATEGY IN MALINGMATI VILLAGE, TAMBAKREJO DISTRICT, BOJONEGORO REGENCY Atika, Atika Nirmala; Anshori, Mohammad
Jurnal SOLMA Vol. 14 No. 1 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

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Abstract

Background: Demam Berdarah Dengue, atau disingkat DBD, merupakan penyakit yang umum terjadi baik di daerah subtropis maupun tropis. Karena penyebarannya yang cepat di satu lokasi, penyakit yang disebarkan oleh nyamuk Aedes aegypti ini dianggap sebagai penyakit awal. Faktanya, bahkan dalam jumlah kasus demam berdarah dalam satu bulan, jutaan orang endemik telah terinfeksi oleh infeksi demam berdarah. Tujuan dari program kerja pengabdian masyarakat ini adalah untuk mengembangkan keterampilan yang mungkin dapat digunakan pada masyarakat Desa Malingmati dan untuk mendapatkan wawasan serta pengetahuan tentang bagaimana memanfaatkan bahan-bahan alam yang terdapat di daerah sekitar. Metode: Mahasiswa Kuliah Kerja Nyata (KKN) melakukan program kerja pengabdian masyarakat ini pada tanggal 01 Desember 2024 hingga 14 Januari 2025, di Desa Malingmati, Kecamatan Tambakrejo, Kabupaten Bojonegoro. Mahasiswa Kuliah Kerja Nyata (KKN) yang berjumlah 15 orang terlibat langsung dalam proses pembuatan lilin aromaterapi sebagai praktek langsung. Hasil: Pembuatan lilin aromaterapi memiliki dampak jangka panjang yang signifikan terutama dalam aspek kesehatan dan dapat menjadi salah satu peningkatan ekonomi masyarakat. Dengan semakin meluasnya kreasi lilin penyembuh wangi ini diyakini dapat membantu daerah setempat dalam mencegah penyakit demam berdarah dan jika terus diciptakan maka dapat menumbuhkan UMKM di desa sekitar untuk menggarap perekonomian dan bantuan pemerintah daerah setempat.
The Analysis of the Effect of Gate Valve Leakage on Piping Systems Using the Lapping Repair Method: Analisis Pengaruh Kebocoran Gate Valve Pada Sistem Perpipaan Menggunakan Metode Perbaikan Lapping M. Roekhanum Majid; Mohammad Anshori; Pelangi Eka Yuwita
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 13 No. 2 (2025)
Publisher : Universitas Pendidikan Ganesha

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Abstract

Gate valve merupakan komponen penting dalam sistem perpipaan industri yang berfungsi mengatur dan menghentikan aliran fluida. Seiring waktu, penggunaan yang terus-menerus dapat menyebabkan kerusakan pada permukaan gate dan seat, seperti aus dan korosi, yang mengakibatkan terjadinya kebocoran internal. Penelitian ini bertujuan untuk menganalisis seberapa efektif perbaikan menggunakan metode lapping dapat mengurangi tingkat kebocoran pada gate valve, serta mengevaluasi kinerja melalui simulasi menggunakan perangkat lunak Autodesk Inventor. Metode lapping diterapkan untuk menghaluskan dan meratakan permukaan yang rusak agar fungsi gate valve dapat kembali optimal. Pengujian dilakukan dengan metode hydrotest untuk mengukur tingkat kebocoran secara langsung, serta simulasi tekanan dengan variasi tekanan antara 500 psi hingga 3000 psi. Hasil penelitian menunjukkan bahwa perbaikan dengan metode lapping secara signifikan mampu mengurangi kebocoran internal, yang terlihat pada hasil uji langsung maupun visualisasi simulasi. Analisis statistik menggunakan uji paired t-test menunjukkan terdapat perbedaan yang signifikan antara kondisi sebelum dan sesudah perbaikan.   Gate valves are essential components in industrial piping systems that regulate and stop fluid flow. Over time, continuous use can cause damage to the gate and seat surfaces, such as wear and corrosion, resulting in internal leaks. This study aims to analyze the effectiveness of repairs using the lapping method in reducing gate valve leakage levels, and evaluate performance through simulations using SolidWorks Flow Simulation software. The lapping method is applied to smooth and level the damaged surface so that the gate valve can function optimally again. Tests were conducted using the hydrotest method to directly measure the leakage level, as well as fluid flow simulations with pressure variations between 500 psi and 3000 psi. The results showed that repairs using the lapping method were significantly able to reduce internal leaks, as seen in the results of direct tests and simulation visualizations. Statistical analysis using a paired t-test showed a significant difference between the conditions before and after repair.
Baina al-Kalimāt wa al-Rawā’i': Istiksyāf Uslūbī li Ṣuwar al-Balāghah fī Sūrah al-Qalam Murtadho, Muhammad Alfa Choirul; Barnabila, Muhammad Kesit; Anshori, Mohammad; Noor, Dizhwar Aydeen
JILSA (Jurnal Ilmu Linguistik dan Sastra Arab) Vol. 9 No. 1 (2025): April
Publisher : Fakultas Adab dan Humaniora UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15642/jilsa.2025.9.1.51-64

Abstract

Al-Qur’an is recognized not only as a sacred scripture containing religious teachings but also as a literary masterpiece rich in linguistic beauty and artistic imagery. Its captivating style brings vivid and meaningful visual images to life, allowing divine messages to be conveyed in a deeper and more thought-provoking manner to its readers. This study aims to analyze the use of literary imagery elements in Surah Al-Qalam and their role in effectively and aesthetically delivering religious messages. Employing a qualitative approach, the study uses descriptive analysis of the verses of Surah Al-Qalam through the lens of classical Arabic stylistics, focusing particularly on tasybīh (simile), isti‘ārah (metaphor), tashkhīṣ (personification), kināyah (irony), and majāz (metonymy). The findings reveal that these five imagery elements are harmoniously applied to express complex meanings in a visual, imaginative, and communicative manner. Tashkhīṣ animates abstract concepts; tasybīh and isti‘ārah enhance the visual representation of teachings; while kināyah and majāz deepen symbolic meaning and strengthen the rhetorical impact of the verses. The study concludes that the use of imagery in Surah Al-Qalam is not mere literary decoration but serves as a crucial instrument in clarifying and reinforcing the divine message.
Co-Authors Aprillia Dwi Ardianti Atika, Atika Nirmala Barnabila, Muhammad Kesit M. Roekhanum Majid Murtadho, Muhammad Alfa Choirul Noor, Dizhwar Aydeen Pelangi Eka Yuwita Priyagung Hartono Putu Hadi Setyarini Sonief, Achmad As'ad Unung Lesmanah