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Doctoral dissertation summary: Research on dynamic parameters of circular saw in bamboo crosscutting process

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Building a model, setting up a system of dynamic equations of the circular saw cutting bamboo, solving the dynamic equations, from which to calculate and determine some reasonable kinetic and dynamic parameters of the circular saw to improve productivity and cutting surface quality | MINISTRY OF EDUCATION AND TRAINING MINISTRY OF AGRICULTURE AND RURALDEVELOPMENT VIETNAM NATIONAL UNIVERSITY OF FORESTRY HOANG HA RESEARCH ON DYNAMIC PARAMETERS OF CIRCULAR SAW IN BAMBOO CROSSCUTTING PROCESS DOCTORAL DISSERTATION SUMMARY HA NOI 2021 The dissertation is conducted at Vietnam National University of Forestry Supervisors 1. Assoc.Prof.Dr. Duong Van Tai 2. Dr. Nguyen Van Bi PhD dissertation Reviewer 1 PhD dissertation Reviewer 2 PhD dissertation Reviewer 3 The dissertation is defended in front of the scientific committee at the Vietnam National University of Forestry Date of doctoral dissertation defence The dissertation can be found at the National Library and the Library of Vietnam National University of Forestry Ha Noi 2021 1 INTRODUCTION 1. The problem statement According to a report by the Department of Agro-Forestry Processing and Markets under the Ministry of Agriculture and Rural Development Vietnam has about 1 000 bamboo processing enterprises and thousands of households producing handicrafts from bamboo. Export turnover of bamboo products in 2020 will reach about 500 million USD thereby creating a significant source of income for businesses and households. Currently processing bamboo products has been mechanized since then productivity and product quality have been increased meeting export requirements. However the equipment used in bamboo processing technology still has some shortcomings that need to be overcome to create higher-quality products thereby enhancing the added value of the products. The survey results of bamboo processing plants show that the bamboo cutting equipment is mainly used a circular saw there are still many problems in the cutting process which is a large cutting surface roughness when cutting parts. The pointed end is often scratched and unsmooth in order to create a smooth surface it must go through a grinding device. Besides The circular saw used in bamboo processing is the one used in woodworking because the .