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All Journal Jurnal Penelitian Hasil Hutan JURNAL ANALISIS KEBIJAKAN KEHUTANAN Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan
Osly Rachman
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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Journal : Jurnal Penelitian Hasil Hutan

 1 
PENGARUH POLA PENGGERGAJIAN DAN SUDUT SAYAT TERHADAP RENDEMEN DAN PRODUKTIVITAS PENGGERGAJIAN KAYU NIBUNG (ONCOSPERMA TIGILLARIUM) Osly Rachman; Dede Rohadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.1.31-34

Abstract

Nibung (Oncosperma  tigillarium) is a member of palm family which has a good potential for  utilization. An experiment to find out the best sawing pattern and hook angle of saw blade for  better recovery and sawing productivity was conducted. Two sawing patterns (live sawing and sawing around)  and two hook  angles (20 and 27 degrees were applied).The results indicated that sawing around pattern produced higher recovery of hard and medium  wood than live sawing as much as 8%, while the 27° of  hook  angle produced higher productivity than 20°  angle as much  as 0.30  m2/min.
PENGARUH SUDUT KERAT DAN BAGIAN BATANG TERHADAP SIFAT PENGGERGAJIAN KAYU KELAPA (Cocos nucifera. L.) Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1986.3.2.28-32

Abstract

Eighteen green cocowood samples, 3 m in length each were sawn into 3 cm thick boards. Trunk samples consisted of two groups, butt logs and top logs. Each group was sawn with 3 degrees of hook angle, namely 19,22 and 25 degrees. Sawing properties, i.e., power consumption, sawing productivity and lumber recovery were related with hook angle and trunk portion. The results reveal that trunk portion and hook angle had a significant effect on power consumption. The butt logs consumed power higher than top logs. Trunk portion had no effect on sawing productivity but greater hook angle tends to increase the productivity. Hook angle and trunk portion had no effect on recovery.
SIFAT PEMESINAN 34 JENIS KAYU DARI MALUKU & SULAWESI TENGAH Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1985.2.3.27-36

Abstract

The machining properties of  34 wood  species  tested according to the ASTMD 1666-64  procedure are presented in this paper.  The machining  properties studied  were planing,  shaping,  turning,  sanding,  boring and  mortising.Some of  the species  tested  (such as suling, gohimahou etc.)  are consistently better  than average in most  respects  and some  are consistently poorer  (such as telor, andolia etc.).  Some  are good  in one property or two and poor in others.  These differences are probably due to differences in the specific gravity  values of  each species
SIFAT PEMESINAN 36 JENIS KAYU DARI DAERAH IRIAN JAYA Osly Rachman; Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.1.1-11

Abstract

This article presents test results of the machining properties  of 36 wood species from  Manokwari,  lrian Jaya.  The test method used was the modified  ASTM D-1666 described in Forest Products  Research Institute Report No.160 (1982). In most of the species 25 or more samples  were available for test. All test material was dried to equilibrium Moisture content condition (15 to 18% moisture  content). The machining properties that were investigated were planing, shaping, boring,   mortising, turning and sanding.Some of  the species tested are consistenly better than average in most respects. The species have good machining properties are sehiega.koesigoro, seyam, matoa, kerbai and petian.   Whereas some species, such as fofo, sehiye, wafut, basuoh,  serakka  and  bimiek  are consistently poorer. The others species are good  in some properties  and fair  or poor in others.
Co-Authors Achmad Supriadi Dede Rohadi Jamal Balfas Jamaludin MALIK Nurwati Hadjib