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INDONESIA
PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Published by Politeknik Perkapalan Negeri Surabaya
ISSN : -     EISSN : 26548631     DOI : https://doi.org/10.33863/cdma.v8i1.2898
Core Subject : Science, Engineering,
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
The aim of the Conference on Design Manufacture Engineering and Its Application (CDMA) is to provide a scientific platform for researchers, academics, and professionals to share and disseminate original research, innovative ideas, and practical developments in the fields of design engineering, manufacturing technology, and their multidisciplinary applications. CDMA welcomes the submission of theoretical and empirical papers that aim to advance knowledge, challenge conventional practices, and offer new insights into areas such as product design, manufacturing systems, industrial automation, materials engineering, and related domains. Submissions may employ various methodological approaches, including experimental research, modeling and simulation, qualitative studies, and data-driven analysis.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 321 Documents
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Perancangan Mesin Penghalus Tanah Liat dan Pencetak Bata Merah Press MRH Khusus Industri Rumahan Maulana Akbar Pambudi; Fipka Bisono; Dhika Aditya Purnomo
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3115

Abstract

Mojotamping Village is the center of the brick industry in East Java. In this village, almost 90% of the residents work as red brick makers on a home industry scale. However, the manufacturing process still uses less efficient methods. Based on these problems, a design for a clay smoothing machine and MRH red brick press specifically for home industries was created. The method used is the Ulrich method by creating 3 different design concepts by considering the specified criteria. Machine design begins with calculating machine component elements from the selected design concept as a reference in determining the size and material of the components for the clay smoothing machine and MRH red brick press machine specifically for the home industry, then designing what manufacturing processes are needed in making the clay smoothing and printing machine MRH red brick press specifically for home industries. This machine has a printing capacity of 300 bricks per hour, so if the operator runs this machine for 8 hours per day this machine can produce 2500 bricks per day. This machine is designed to use a 3 HP engine which is considered to have good fuel efficiency so it can reduce production costs when compared to existing products.
ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) PADA PERUSAHAAN INJECTION MOULDING Ivan Bagus Achmal; Farizi Rachman; Dian Asa Utari
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3118

Abstract

CV. Anugrah Masrurah Teknik (AMT) is a company in the molding industry, especially Plastic Injection Molding, which produces interlock floors. The company often experiences a shortage of raw material inventory, causing uneconomical purchases and problems in the inventory and financial sectors. The main problem is raw material inventory planning that has not been maximized. This study uses the Economic Order Quantity (EOQ) method to identify the optimal purchase amount and prove whether this method can minimize the total inventory cost. The research objective is to determine the economic order quantity, order frequency, reorder point and safety stock. The results of the EOQ calculation show that the economic amount of raw material inventory is 1438 kg and results in cost savings of Rp. 17,157,133.
DESAIN ULANG DAN ANALISIS LEAF SPRING MITSUBISHI L300 MULTILEAF MENJADI PROGRESSIVE LEAF MENGGUNAKAN METODE ELEMEN HINGGA Zanuba Fitria Rachmah; Mohamad Hakam; Priyambodo Nur Ardi Nugroho
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3126

Abstract

Redesigning the existing leaf spring design and analyzing it’s transformation from multileaf to progressive leaf using the finite element method is the focus of this research. The study aims to investigate the impact of these leaf springs when applied to the Mitsubishi L300. The primary objectives include understanding the stress influence, stiffness effects, and fatigue characteristics of both types of leaf springs. Simulation results indicate that the multileaf leaf spring design exhibits a stress value of 503.32 MPa, where Is the progressive leaf spring shows a stress value of 421.98 MPa. These findings suggest that the progressive leaf spring design efficiently distributes loads, thereby reducing potential damage. Regarding stiffness, the multileaf leaf spring design records a stiffness of 6,320 N/mm, whereas the progressive leaf spring exhibits a stiffness of 5,028 N/mm. Additionally, the fatigue life of the multileaf leaf spring is approximately 4.1 years, whereas the progressive leaf spring reaches 6.8 years. Based on these results, it can be concluded that the progressive leaf spring outperforms the multileaf leaf spring in reducing stress and extending fatigue life, despite having lower stiffness values.
Perancangan Ulang Tata Letak Fasilitas Dengan Metode Blocplan Pada CV. Anugrah Masruroh Teknik Muhammad Jordan Samudra Putra; Renanda Nia Rachmadita; Fipka Bisono
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3200

Abstract

In a company, the arrangement of machinery and equipment affects production activities, especially the effectiveness of the production process time and the fatigue experienced by operators on the production floor. A good layout is a layout that is arranged based on the flow pattern of materials and equipment that is regular and effective. Based on observations made at CV. Anugrah Masruroh Teknik, the problem in this business is the placement of facilities that hinder the process of moving materials. The location of receiving materials inhibits the process of moving materials from one machine to another. This study aims to obtain a better layout to minimize the distance or minimize the distance of movement between production stations. The method used in this research is BLOCPLAN (Block Layout Overview with Computerized Planning Using Logic and Algorithms). The resulting 5 alternative layouts can be made which are then selected to determine the most efficient alternative layout based on the smallest material handling costs. The results showed an alternative layout resulting from the BLOCPLAN method with a minimization of the distance between facilities of around 68.5% and a reduction in material handling costs of around 68.3% of the actual layout. The redesign of the production facility layout of CV Anugrah Masruroh Teknik is considered effective using the BLOCPLAN method.
Pendekatan Lean Manufacturing Menggunakan Metode VALSAT Untuk Mengidentifikasi Waste Pada Produksi Kontruksi Baja (Studi Kasus Di PT. Ometraco Arya Samanta) Inge Ventarani Abdul; Farizi Rachman; Bayu Wiro Karuniawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3205

Abstract

PT. Ometraco Arya Samanta which is engaged in steel manufacturing and civil engineering that produces project buildings. The company found a waste problem that occurred in the production process so that there was a delay in product delivery. In this problem, waste was found in the production process, the causes and alternative improvements that can increase the efficiency of the production process. This causes an inefficient production process, so by reducing waste it can increase production efficiency and company performance and productivity. Analysis of the Lean Manufacturing approach using the Value Stream Mapping (VSM) and Value Stream Analysis Tools (VALSAT) methods can help identify waste, analyze the causes of waste, and provide proposals in minimizing waste occurrence. The results of the calculation on process activity mapping with a result of 104.4, supply chain response matrix with a result of 55.5, production variety funnel with a result of 16.8, quality filter mapping with a result of 23, demand amplification mapping with a result of 35.1, decision point analysis with a result of 23.6, physical structure with a result of 23.4. From the results of the questionnaire distribution, the lowest results were obtained by waste environmental health and safety and waste over production and the highest results were obtained by waste motion, transportation, waste waiting. The main cause of waste is because the distance between the previous process and the next process takes a lot of time to move it, occurs because the material in the warehouse has run out and the delivery from the supplier is late, so workers are waiting for material confirmation. It is rare for sudden orders to customers in the middle of the production process that are not in accordance with the purchasing order (PO), causing the effect of delays.
Optimasi Parameter Mesin Laser Tube Cutting Terhadap Kekasaran Permukaan Dan Laju Pemotongan Pada Square Pipe ST 37 Menggunakan Taguchi Grey Relational Analysis Method Lintang Aditya Wardani; Farizi Rachman; Pranowo Sidi
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 8 No 1 (2024): Proceedings Conference On Design Manufacture Engineering And Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/cdma.v8i1.3271

Abstract

CNC TruLaser Tube 5000 TRUMPF machine is used to perform cutting process in PT. Dempo Laser Metalindo. The quality of the cut product produced is required to have minimum roughness value, but in every cut result especially on Square Pipe St 37 material there is cutting defect. Cutting defect in the product result is surface roughness. Surface roughness can affect the cutting rate on the material, the solution to get cutting quality with minimal roughness and maximum cutting rate is to analyze the parameters that affect the response by optimizing the parameters. The parameter variables to be optimized are focus point, cutting gas pressure, nozzle distance, and laser power. This study uses Square Pipe St 37 material and the experimental design uses Taguchi Method combined with Grey Relational Analysis using orthogonal matrix L9 (34). From the results of the research that has been conducted, it was obtained that the most optimal combination of parameters for cutting rate and surface roughness is the focal point at level 2 which is 2 mm, nozzle distance at level 3 which is 1,1 mm, and laser power at level 3 which is 2700 W. The focal point parameter provides a percentage contribution of 38.60%, while the nozzle distance parameter provides a percentage contribution of 6.42%, and the laser power parameter provides a percentage contribution of 35.92%.
ANALISIS STRUKTUR ALAT SUPPORT DEVICE DARI KURSI RODA MANUAL MENJADI ELEKTRIK MENGGUNAKAN METODE ELEMEN HINGGA Haikal Fikri; Tri Andi Setiawan; Anda Iviana Juniani
Proceedings Conference On Design Manufacture Engineering And Its Application Vol. 9 No. 2 (2025): 9th Proceedings of Conference on Design Manufacture Engineering and its Applica
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cdma.v9i2.3600

Abstract

Menurut data Susenas 2020, terdapat 8,8 juta penyandang disabilitas dengan masalah pada kaki, namun 70% atau sekitar 6,1 juta di antaranya belum memiliki kursi roda. Kondisi ini menyebabkan keterbatasan mobilitas karena pengguna masih membutuhkan bantuan orang lain untuk menggerakkannya, terlebih pada kursi roda manual yang sering menimbulkan kesulitan dan kelelahan sehingga menurunkan produktivitas pengguna kursi roda. Untuk mengatasi hal tersebut, penelitian ini merancang alat support device kursi roda manual menjadi elektrik, khususnya bagi penyandang disabilitas paraplegia, agar mereka dapat berpindah tempat secara mandiri. Alat dirancang ringan, aman, nyaman, dan mudah digunakan tanpa bantuan orang lain. Dengan adanya permasalahan tersebut, penelitian ini menggunakan metode Ulrich dan Metode Elemen Hingga supaya bisa menyesuaikan dengan kebutuhan para pengguna kursi roda dengan disabilitas paraplegia. Berdasarkan hasil simulasi menggunakan software Autodesk fusion 360, tegangan maksimum pada alat ini masih dalam batas aman dibandingkan dengan tegangan izin maksimumnya sebesar (80.375 MPa < 103.5 MPa). Safety factor terendah lebih besar dari pada safety factor yang ditentukan (2.575 > 2.00), sehingga desain ini aman untuk dioperasikan sesuai fungsi untuk pasien dengan berat maksimal 120 kg. Dimensi alat ini 480.5mm x 884.7mm x 593mm yang memiliki fitur adjustable pada bagian handle setir dan juga memiliki fitur lipatan pada bagian fork. Konsep 1 terpilih sebagai desain terbaik karena memiliki kriteria dimensi umum, dimensi lipat, dan ergonomi yang paling baik daripada konsep desain lainnya.
IMPLEMENTASI METODE SIX SIGMA UNTUK PENGENDALIAN KUALITAS PRODUKSI DI INDUSTRI KERAMIK Ahmad Luthfi Effendy; Dian Asa Utari; Farizi Rachman
Proceedings Conference On Design Manufacture Engineering And Its Application Vol. 9 No. 2 (2025): 9th Proceedings of Conference on Design Manufacture Engineering and its Applica
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cdma.v9i2.3622

Abstract

Perusahaan keramik di Kabupaten Mojokerto menghadapi tantangan pada tahap akhir prosesproduksi sejak operasional Line C dimulai tahun 2023 untuk memproduksi keramik lantai granittipe glaze polish. Masalah utama yang sering muncul adalah tingginya tingkat cacat, terutamapada tahap squaring. Cacat Gumpil Squaring mendominasi sebesar 40%, diikuti Diagonal Linier29%, Chipping 16%, dan Trapesium 15%. dengan adanya masalah tersebut pengendalian kualitassangat ditekankan, salah satunya adalah penerapan metode Six Sigma dengan pendekatanDMAIC. Dari analisis menggunakan diagram fishbone dan metode FMEA, ditemukan limapenyebab utama cacat Gumpil Squaring adalah operator kurang teliti, keramik gumpil sebelumpemotongan akibat guide transportasi aus dan gerinda malfungsi, ketidakrataan antar grindingwheel, pisau grinding wheel gumpil/rusak, serta tidak adanya pengecekan kualitas pada in squaring1. Upaya perbaikan meliputi: pengecekan kualitas in squaring 1 setiap 30 menit, penambahankategori cacat dalam IK, pembuatan form checklist grinding wheel, penggantian guide, penilaianberkala kepada operator, penggantian ulang gerinda dan perbaikan Standard Aus Grinding WheelSquaring 1 dan 2 (R:1-2 dan L:1-2) maksimal sisa 3 mm.
PRODUKSI PROPELLER ALUMINIUM MEMANFAATKAN LIMBAH GERAM MESIN CNC PPNS Gilang Yuka Prahara; Widya Emilia Primaningtyas; Rizal Indrawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol. 9 No. 1 (2025): 9th Proceedings of Conference on Design Manufacture Engineering and its Applica
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cdma.v9i1.3631

Abstract

Propeller merupakan komponen vital dalam sistem propulsi kapal karena berfungsi mengubah energi kinetik menjadi gaya dorong. Penelitian ini bertujuan memanfaatkan limbah aluminium hasil pemesinan CNC dari Laboratorium CNC PPNS sebagai bahan baku alternatif pembuatan propeller dengan metode sand casting. Pemanfaatan limbah ini diharapkan dapat menekan biaya produksi sekaligus mendukung pengelolaan limbah industri berkelanjutan. Proses pengolahan limbah dilakukan melalui tahap pencucian menggunakan larutan sabun sebanyak empat kali untuk menghilangkan minyak coolant, serta pemisahan logam ferro dengan metode magnetik sebanyak dua kali pada setiap siklus pencucian. Setelah pengeringan, material dilebur pada suhu 800°C sebelum dituangkan ke dalam cetakan pasir. Untuk memastikan kualitas pengecoran, tiga konsep gating system dirancang dan disimulasikan menggunakan perangkat lunak ProCast 2018. Hasil simulasi menunjukkan bahwa konsep merupakan desain terbaik dengan berat total layout 34,52 gram, volume sistem saluran 6,30 cm3, waktu tuang 3 detik, total porositas 0,423 cm3 (3,31%), dan yield casting 65%. Validasi pengecoran aktual mendukung hasil simulasi dengan ditemukannya cacat visual berupa porosity dan sirip cor yang masih dapat diperbaiki melalui penggerindaan. Namun, terjadi penurunan berat produk dari 17,9 gram menjadi 14,5 gram akibat cacat porosity. Penelitian ini menyimpulkan bahwa rancangan gating system yang baik dapat meningkatkan kualitas pengecoran limbah aluminium, meskipun optimalisasi proses pembersihan dan pengendalian parameter masih diperlukan agar material daur ulang ini dapat dimanfaatkan secara maksimal untuk pembuatan propeller kapal.
PERANCANGAN EXOSKELETON UNTUK REHABILITASI KAKI PENDERITA STROKE HEMIPARESIS Anum Kusuma Lendie; Dhika Aditya Purnomo; Am Maisarah Disrinama
Proceedings Conference On Design Manufacture Engineering And Its Application Vol. 9 No. 1 (2025): 9th Proceedings of Conference on Design Manufacture Engineering and its Applica
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cdma.v9i1.3640

Abstract

Stroke merupakan penyebab utama kecacatan pada orang dewasa, dengan prevalensi hemiparesismencapai 70–80 persen dari total kasus. Hemiparesis menyebabkan kelemahan pada satu sisi tubuh yang berdampak signifikan terhadap kemampuan berjalan dan keseimbangan. Meskipun berbagai alat bantu sederhana seperti tongkat dan walker banyak digunakan, alat-alat tersebut umumnya hanya berfungsi sebagai penopang pasif tanpa mendukung gerakan rehabilitatif secara optimal. Sementara itu, exoskeleton aktif dinilai efektif dalam rehabilitasi intensif, namun memiliki keterbatasan berupa biaya tinggi, bobot besar, dan ketergantungan pada tenaga listrik. Penelitian ini bertujuan merancang exoskeleton pasifuntuk rehabilitasi kaki penderita stroke hemiparesis yang mengedepankan aspek fungsional, kenyamanan, dan kesesuaian dengan kebutuhan penderita. Proses perancangan mengikuti metode Ulrich, mencakup identifikasi kebutuhan, pengembangan dan evaluasi konsep desain, analisis kekuatan struktur menggunakan metode elemen hingga (FEM) melalui Autodesk Fusion 360, serta analisis ergonomi menggunakan metode RULA pada perangkat lunak Catia V5. Tiga konsep dikembangkan dan dibandingkan, dengan konsep 1 terpilih sebagai desain terbaik. Desain akhir memiliki dimensi panjang 137 cm, lebar 53 cm dan tinggi 119 cm dengan berat total sebesar 19,9 kg. Hasil simulasi menunjukkan tegangan maksimum vonmises sebesar 47,373 MPa dari batas izin 137,5 MPa, menghasilkan safety factor sebesar 3,42. Evaluasi ergonomi menghasilkan skor RULA sebesar 2, yang menandakan postur pengguna berada pada kategori aman. Biaya total yang dibutuhkan untuk membuat exoskeleton ini diperkirakan sebesar Rp5.438.098.

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