THE DIFFERENCE OF MACHINING PROPERTIES OF TIMO (Timonius sericeus (Desf) K. Schum.) And KABESAK WOOD (Acacia leucophloea (Roxb.) Willd.) FROM EAST NUSA TENGGARA

Rianawati, Heny; Siswadi, Siswadi; Setyowati, Retno

doi:10.18330/jwallacea.2015.vol4iss2pp185-192

Cited by 4 publications

(18 citation statements)

References 3 publications

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“…The tree in the cut that has a height and diameter represents the spread that is in the plot, then the division of trunks and sawmills into boards. Testing of machining properties, size, shape, and method of sampling tests conducted according to ASTM method D1666-87 (Lukmandaru et al, 2015;Rianawati et al, 2015;Supriadi & Abdurachman, 2018;Yustinus Suranto et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

“…Observations are made visually with the help of a 10-fold magnifying glass. To assess the influence of location dan different plant age conducted variant analysis (ANOVA) univariate for different treatment conducted with SPSS 20.0 program with further tests Tukey (Lukmandaru et al, 2010;Rianawati et al, 2015;Supriadi & Abdurachman, 2018;Yustinus Suranto et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

“…Knowledge of the basic properties can direct the purpose of utilization of a type of wood in order to obtain the efficiency of the use of this type of wood so as to replace or complement the use of commercial types of wood (Lukmandaru et al, 2015;Marsoem et al, 2016 b;Siska et al, 2018;Yustinus Suranto et al, 2008). Important basic properties for export furniture raw materials include machining properties (Rianawati et al, 2015;Supriadi & Abdurachman, 2018;Yustinus Suranto et al, 2015). Machining properties are one of the parameters to determine the quality of wood.…”

Section: Introductionmentioning

confidence: 99%

“…Machining properties are one of the parameters to determine the quality of wood. The easier the wood is done and the greater the proportion of smooth surfaces after the work process, the higher the class of woodworking (Rianawati et al, 2015;Supriadi & Abdurachman, 2018;Suranto et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Distribution of Certified Wood Teak Wood Machining Properties as Export Furniture Materials

Sushardi¹,

Prayitno²,

Suranto³

et al. 2022

Trofical Forest Journal

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Pengujian sifat pemesinan kayu jati hutan rakyat menjadi sangat penting untukmendapatkan informasi penggunaannya sebagai bahan baku mebel kualitas ekspor.Penelitian bertujuan mengetahui pengaruh perbedaan lokasi dan umur tanaman terhadapsifat pemesinan kayu jati hutan rakyat. Penelitian dilaksanakan di hutan rakyat jatitersertifikasi pada umur 6, 8 dan 10 tahun. Pengujian sifat pemesinan dilakukan menurutmetode ASTM D1666-87. Penelitian menggunakan analisis varian program SPSS 20.0dengan uji lanjut Tukey. Hasil penelitian menunjukan jati hutan rakyat di lokasi Nglipar,Playen dan Dlingo dan umur pohon 6, 8 dan 10 tahun menghasilkan sifat pemesinan yangberbeda sangat nyata, dengan kualitas kelas mutu I dan sifat pemesinan sangat baik,kecuali di lokasi Dlingo dan umur 6 tahun dengan kelas mutu II dan sifat pemesinan baik.Sifat pemesinan jati hutan rakyat mempunyai nilai bebas cacat penyerutan 79.86 – 87.97%, pembentukan 80.96 - 90.06 %, pemboran 80.34 -89.85 % dan pengampelasan 80.19-94.47 %.Kata kunci : Hutan jati rakyat, pemesinan, penyerutan, pembentukan, pemboran,pengampelasan

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Distribution of Certified Wood Teak Wood Machining Properties as Export Furniture Materials

Sushardi¹,

Prayitno²,

Suranto³

et al. 2022

Trofical Forest Journal

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show abstract

“…Hasil penelitian tersebut menyebutkan bahwa cacat dominan yang terjadi adalah serat berbulu yang berkisar antara 0−50%. (Rianawati & Setyowati., 2015) juga menyatakan bahwa, serat berbulu merupakan cacat yang umumnya terjadi dalam pembentukan kayu, hal ini diduga karena kecepatan operator dalam mengoperasikan router. Semakin cepat penggunaan maka semakin tinggi cacat yang timbul, begitu juga sebaliknya semakin teratur maka hasilnya semakin bagus.…”

Section: Evaluasi Cacat Pemesinan Setelah C Pemanasanunclassified

Evaluasi Cacat Pengeringan Dan Pemesinan Pada Empat Jenis Kayu Cepat Tumbuh Termodifikasi Panas

Adzkia¹,

Priadi²,

Karlinasari³

2019

j.penelit.has.kehutan

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Heat treatment is one method that can improve the quality of wood including for fast-growing wood species. However, this treatment can cause some drying defects as well as the change of machining properties after applying that heat treatment. The purpose of this study was to evaluate the effect of wood species and heating time on the drying and machining defects. The fast-growing wood species used were teak, mangium, jabon, and sengon. The heat treatment was carried out at a temperature of 165°C with variation in time were 0 (control), 2, and 6 hours. The result showed that the moisture content and wood density decreased after heat treatment. Heat treatment was succeeded to decrease the moisture content of 57% and caused a decreasing of density until 20% compared with control wood. The drying defects of end checks in teak, mangium, jabon and sengon increased after 2 and 6-hour heat treatment. In the other hand, the surface checks defect of teak, mangium, sengon and jabon were decreased. The defects after applying machining activities i.e. the defects of sanding, planing, shaping, and boring were decreased in teak, mangium, jabon and sengon after heat treatment of 2 and 6-hour. Jati was the best wood species in term of machining quality followed by jabon, mangium, and sengon after heat treatment. At the temperature of 165°C in 2 hours could be considered as the appropriate time for heat treatment in term of obtaining minimal defects of drying and machining. ABSTRAKPerlakuan panas merupakan salah satu metode yang dapat meningkatkan kualitas kayu termasuk untuk kayu cepat tumbuh. Namun perlakuan tersebut dapat menyebabkan cacat pengeringan serta perubahan sifat pemesinan setelah perlakuan panas. Tujuan penelitian ini untuk mengevaluasi pengaruh variasi jenis kayu dan waktu pemanasan terhadap adanya cacat pengeringan dan pemesinan kayu cepat tumbuh. Jenis kayu cepat tumbuh yang digunakan adalah jati, mangium, jabon dan sengon. Perlakuan panas dilakukan pada suhu 165ºC dengan variasi waktu 0 jam (kontrol), 2 jam dan 6 jam. Hasil penelitian menunjukkan bahwa kadar air dan kerapatan kayu menurun setelah perlakuan panas. Perlakuan panas berhasil menurunkan kadar air 57% dan menyebabkan penurunan kerapatan kayu hingga 20% dibandingkan dengan kayu kontrolnya. Cacat pengeringan retak ujung pada jati, mangium, jabon dan sengon meningkat setelah perlakuan panas selama 2 dan 6 jam. Di sisi lain, cacat retak permukaan pada jati, mangium, sengon dan jabon berkurang. Cacat setelah menerapkan kegiatan pemesinan yaitu cacat pengamplasan, penyerutan, pembentukan, dan pengeboran menurun pada jati, mangium, jabon dan sengon setelah perlakuan panas 2 dan 6 jam. Jati adalah spesies kayu terbaik dalam hal kualitas pemesinan setelah perlakuan panas diikuti oleh jabon, mangium, dan sengon. Pada suhu 165°C dalam 2 jam dianggap sebagai waktu yang tepat untuk perlakuan panas dalam hal memperoleh cacat minimal pengeringan dan pemesinan. Kata kunci : Jati, jabon, perlakuan panas, sengon.

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Potential uses of the lesser-known tree: Timo (Timonius sericeus (Desf) K. Schum) from Timor Island, East Nusa Tenggara based on its chemical wood properties and calorific value

Rianawati¹,

Setyowati²,

Siswadi³

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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This study determined the chemical properties and calorific value of Timo (Timoneus sericeus) wood originated from Reknamo village, Timor Island, East Nusa Tenggara. Timo is a potential wood that belongs to the Rubiaceae family, categorised as the lesser known tree. Its basic wood properties have not been thoroughly scientifically investigated. The chemical wood analyses were carried out at the laboratory of chemical forest products in the Forest Products Research and Development Center, Bogor. The Testing methods were according to the ASTM and TAPPI standard, included the content of extractive solubility (in cold water, hot water, benzene-alcohol, and in 1% NaOH), cellulose, pentose, lignin, ash, and silica. The calorific value was measured by the calorimeter. The result showed that the cellulose, pentose, and extractive solubility contents of Timo wood were high; the lignin and ash contents were moderate; the silica content was low; the calorific value was high (4400 cal/g). Based on the results of chemical wood analyses and calorific value, Timo wood is qualified for construction and wood energy; while it is not recommended for pulp and bioethanol.

show abstract

THE DIFFERENCE OF MACHINING PROPERTIES OF TIMO (Timonius sericeus (Desf) K. Schum.) And KABESAK WOOD (Acacia leucophloea (Roxb.) Willd.) FROM EAST NUSA TENGGARA

Cited by 4 publications

References 3 publications

Distribution of Certified Wood Teak Wood Machining Properties as Export Furniture Materials

Distribution of Certified Wood Teak Wood Machining Properties as Export Furniture Materials

Evaluasi Cacat Pengeringan Dan Pemesinan Pada Empat Jenis Kayu Cepat Tumbuh Termodifikasi Panas

Potential uses of the lesser-known tree: Timo (Timonius sericeus (Desf) K. Schum) from Timor Island, East Nusa Tenggara based on its chemical wood properties and calorific value

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