Professor Chair Holder of the Faculty of Forestry, Bogor Agricultural University: Special Saw Blades Recommended for Composite Wood

Almost any power saw blade that is recommended for lumber will also cut composite wood. However, some blades are better suited for cutting composite wood, as they cause blunt faster than if they used for solid wood. This is because the process of making a composite wood product used various types of adhesives, additives, catalysts and other supplementary materials. In general, the coarser the material, the finer the tooth of the blade needs to be to achieve a clean cut. Since 1985, the Professor Chair Holder of the Faculty of Forestry, Bogor Agricultural University (IPB), Prof. Wayan Darmawan, has made great efforts to improve fatigue reliability and design accuracy of rotor blades especially for wood composites.

 

In his scientific oration on "Rekayasa Mata Pisau Gergaji, Menuju Proses Pengerjaan Kayu Berkualitas dan Ramah Lingkungan = Saw Blades Engineering, Towards Quality and Environmental Friendly Wood Working Process" at the Auditorium Andi Hakim Nasution, Dramaga campus, 23 April 2016, Prof. Wayan classified surface engineering technology into three groups, namely Surface coatings and surface modification, and redesign the shape of the blade.

 

"Our studies revealed that Multilayered thermal barrier coatings blades prone to fatigue compared to single-coating and non-coating blades for particle board cutting process. CrAIN and TiN layers are chosen for the bottom layer, as it has highest durability without delamination to cut two kilometers composite wood and reduces noise levels, "he said.

 

There are many advantages of using multilayered coatings, namely the high hardness, low coefficient of friction, high resistance to oxidation, and relatively low resistance to delamination in composite materials. According to him, the multilayer-coated saw blades indicate a very promising sawmills and wood for fast cutting. 

 

In addition, the helix of the saw blade reduce noise levels up to 10 dB. Too fine a blade can slow you down, and too rough can cause uneven edges. Use a fairly coarse blade on these tools, which are designed for finer details. (Wied)