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All Journal Tengkawang : Jurnal Ilmu Kehutanan Jurnal Kreatif : Desain Produk Industri dan Arsitektur
Desy Mulyosari
Politeknik Industri Furnitur dan Pengolahan Kayu
Agriculture, Biological Sciences & Forestry Arts Civil Engineering, Building, Construction & Architecture Industrial & Manufacturing Engineering

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PENGARUH POSISI SAMBUNGAN KONSTRUKSI KAYU TERHADAP DEDAIN PRODUK MEBEL BERBAHAN DASAR KAYU Bahtiar Rahmat; Desy Mulyosari; Agung Ari Purwanto; Wahyu Widiyanto
Jurnal Kreatif : Desain Produk Industri dan Arsitektur Vol. 11 No. 1 (2023): Vol.11, No. 1, April 2023
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/jkdpia.v11i1.336

Abstract

Wood furniture products were one of the commodities that have a dominant contribution compared to other furniture materials to the Indonesian economy. In furniture products, the connection system was a weak point in the construction, so a detailed analysis was needed regarding the factors that affect the strength of the construction and the effectiveness of the wood connection system. The purpose of this study was to determine the quality of the wood used as outdoor chair material by carrying out several tests to obtain wood density, moisture content, MOR and MOE values and then carrying out impact tests on actual outdoor chair products. The results showed that the teak wood used in the raw material for making the product had a moisture content of 12% with an average density of 0.68 g/cm3. The results of the static flexural strength test showed that the MOE of the tested teak was 107,108 kg/cm2 and the MOR value was 1,018 kg/cm2. The compressive strength value parallel to the fiber is 536 kg/cm2. The teak sample tested was included in strong class II which is quite strong as a raw material for furniture such as outdoor chairs. Analysis of the results of the construction design found that the type of construction used was tenon mortise, cracks at the joints occurred because the tenon was too close to the head of the wood. Based on the product test results, after the product with a new construction design was made, by lowering the tenon mortise position 3 mm from the initial position. The crack that occurs in the product is caused by an error in product construction design and not from the quality of the product raw materials used.
THE INFLUENCE OF CLASSIC AND MODERN TYPES OF JOINT CONSTRUCTION ON THE STRENGTH OF WOOD-BASED PRODUCT Agung Ari Purwanto; Bahtiar Rahmat; Wahyu Widiyanto; Arip Wijayanto; Soleh Muhamad; Desy Mulyosari; Nurmadina Nurmadina
Tengkawang : Jurnal Ilmu Kehutanan Vol 14, No 1 (2024): TENGKAWANG : JURNAL ILMU KEHUTANAN
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v14i1.75399

Abstract

In furniture products, joints represented susceptible areas where damage or structural issues might arise. Consequently, selecting the appropriate joint technique was crucial to reduce the likelihood of failures in furniture joint connections. The objective of this study was to furnish insights into the failure patterns under diagonal compression loads for various wood joints (both traditional and contemporary) constructed with a Medium-Density Fiberboard (MDF). The chosen joint techniques included Dowel (D), tongue and groove (T), Minifix (M), and Insert nut (N). Two compression test scenarios were implemented to evaluate the performance of each joint under external loads. The findings revealed that the Insert nut (N) joint emerged as the most preferable method, demonstrating resilience against the highest external loads and ease of installation, particularly suitable for knock-down furniture items. Conversely, the minifix joint (M) is not recommended due to its intricate construction process, and the compression test results indicated that it exhibited the lowest resistance to external loads.Keywords: Furniture, knock-down, properties, compression test.AbstrakDalam produk furnitur, sambungan merupakan area yang rentan terhadap kerusakan atau masalah struktural yang mungkin timbul. Oleh karena itu, pemilihan teknik sambungan yang tepat sangat penting untuk mengurangi kemungkinan kegagalan dalam sambungan furnitur. Tujuan dari penelitian ini adalah untuk memberikan wawasan tentang pola kegagalan di bawah beban kompresi diagonal untuk berbagai jenis sambungan kayu (baik yang tradisional maupun kontemporer) yang dibuat dengan Medium-Density Fiberboard (MDF). Teknik sambungan yang dipilih meliputi Dowel (D), tongue and groove (T), Minifix (M), dan Insert nut (N). Dua skenario uji kompresi diterapkan untuk mengevaluasi kinerja setiap sambungan di bawah beban eksternal. Temuan menunjukkan bahwa sambungan Insert nut (N) muncul sebagai metode yang paling disukai, menunjukkan ketahanan terhadap beban eksternal tertinggi dan kemudahan pemasangan, khususnya cocok untuk furnitur yang dapat dirakit. Sebaliknya, sambungan minifix (M) tidak disarankan karena proses konstruksi yang rumit, dan hasil uji kompresi menunjukkan bahwa sambungan ini menunjukkan resistensi terendah terhadap beban eksternal.Kata kunci: Furnitur, knock-down, properti, uji tekan.
Co-Authors Arip Wijayanto Bahtiar Rahmat Nurmadina Nurmadina Purwanto, Agung Ari Soleh Muhamad Wahyu Widiyanto