Achmad Supriadi
Pusat Penelitian dan Pengembangan Hasil Hutan, Jl. Gunung Batu No. 5, Bogor 16118

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Kualitas Pemesinan Kayu Punak (Tetramerista glabra Miq.) Menurut Kedalaman Batang Achmad Supriadi
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 1 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.164 KB) | DOI: 10.18343/jipi.24.1.12

Abstract

This paper presents the results of the quality of wood machining according to the depth of the stem. Testing of machining properties refers to modified ASTM D-1666-64. The results showed that the quality of wood machineries of the outside of the steam was fair to good and the inside of the steam was good to excellent. The fuzzy grain was most found. The quality of wood inside the stem is generally better than the outer wood. The depth of the stem has a significant effect on the value of defect free turning. Punak wood can be recommended to be processed into a variety of wood working products such as moulding, wood carvings, pegs, fence, the other items of turnings, panels, door components, tables, and wallcoverings.
Sifat Kayu Lapis yang Dibuat dari Lima Jenis Kayu Asal Riau Achmad Supriadi; Deazy Rachmi Trisatya; Ignasia Maria Sulastiningsih
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 4 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.4.657

Abstract

The objective of this study was to determine the physical and mechanical properties of plywood made of punak (Tetramerista glabra Miq.), meranti bunga (Shorea teysmanniana Dyer ex Brandis), mempisang (Alphonsea spp.), suntai (Palaqium burckii H.J.L.), and pasak linggo (Aglaia argentea Blume). Liquid urea formaldehyde (UF) was used as an adhesive. Data analysis was carried out using a completely randomized design. Results showed that the moisture content and density of plywood produced in this study were around 10.4-10.95% and 0.65 to 0.93 g/cm3, respectively. The modulus of elasticity (MOE) and modulus of rupture (MOR) of plywood produced were between 63.371-123.548 kg/cm2 and 517-1.052 kg/cm2, respectively. It was also found that the tensile strength and bonding strength of the plywood produced were 461.6-1.095 kg/cm2 and 18.97-31.79 kg/cm2, respectively. It was recorded that moisture content and the bonding strength of the plywood produced met the Indonesian National Standard of Plywood. Among others, plywood produced from pasak linggo showed a superior quality. Referring to statistical analysis, it was confirmed that physical and mechanical properties of plywood were significantly affected by wood species, except moisture content. Keywords: mechanical properties, physical properties, plywood, Riau wood species