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Production of Sawn Timber

Course developer

Prior knowledge

MatZ1004, Metrology and Standardisation

MatZ2035, Wood Cutting Processes

MatZ3018, Wood Commoditis Science

MatZ3028, Wood Processing Machinery and Tools

MatZ3057, Production of Sawn Timber

Replaced course

MatZ3038 [GMTR3038] Production of Sawn Timber

Course abstract

The task of the course project is to create a sawmill project based on a specific technological process and an individual sawing schedule. The aim of the course project is to develop ability for calculation and compilation of sawing schedules and designing of sawmills.

Learning outcomes and their assessment

Knowledge - to explain terminology of the sawmill industry and to understand the technologies used in sawmills.
Assessment - course project.
Skills - to perform calculations of feed speed and productivity for sawlogs and cants sawing, sawn timber edging and transport equipment of assortment and to choose the necessary technological equipment.
Assessment - course project.
Competence - to design work technology in sawmills.
Assessment - course project.

Course Content(Calendar)

1. Selection of technological equipment and cutting tools and determination of their parameters (independent works 3 h)
2. Calculations of the feed speed for the cants sawing out of sawlogs (independent works 10 h)
3. Calculations of the feed speed for the cants breakdown (independent works 10 h)
4. Calculations of annual productivity of sawmill (independent works 4 h)
5. Calculations of the feed speed for the sawn timber edging (independent works 8 h)
6. Calculations of productivity and number of edging and crosscutting machines (independent works 4 h)
7. Designing of a sketch of technological plan (independent works 4 h)
8. Calculations of feed speed and productivity of transport equipment (independent works 8 h)
9. Calculations of technical and economic indicators (independent works 3 h)
10. Characterization of work organization and technology in sawmill (independent works 3 h)
11. Formation of the calculation part of the course project (independent works 12 h)
12. Formation of the graphic part of the course project (independent works 8 h)
13. Defense of the course project (independent works 3 h)

Requirements for awarding credit points

Course project must be developed, submitted for evaluation and validated.

Description of the organization and tasks of students’ independent work

The task of course project is prepared individually for each student. The task contains data of the brand names of sawlogs and cants sawing and sawn timber edging machines. The parameters that are not defined in the task should be independently selected by the students. Based on the task and sawing schedule calculated within the framework of course MatZ3057, sawmill project must be designed by students. Tasks are issued to students and students submit their course project only in an electronic form on the website of the e-studies of the Latvia University of Life Sciences and Technologies.

Criteria for Evaluating Learning Outcomes

It is necessary to complete all tasks of the course plan in the course project and to answer the questions of the teaching staff in the defense of the course project. The grade is evaluated based on the number of completed tasks and relevance and answers to questions.

Compulsory reading

1. Kozuliņš V., Tuherms H. Koksnes pirmapstrāde. Jelgava: Kokapstrādes tehnoloģijas centrs, 2004. 210 lpp.
2. Ettelt B., Gittel H.J. Sägen, Fräsen, Hobeln, Bohren: die Spanung von Holz und ihre Werkzeuge. Stuttgart: DRW-Verlag, 2004. 290 s.
3. Mooslechner W. Winterholz. Salzburg-München: Pustet, Anton Verlag, 2009. 136 s.
4. Līpiņš L., Liepa I. Apaļo kokmateriālu uzmērīšana. Jelgava: Latgales druka , LLU, 2007. 104 lpp.

Further reading

1. Kozuliņš V. Zāģmateriālu ražošanas tehnoloģija. Jelgava: LLU, 1998. 31 lpp.
2. Meža nozares termini. Rīga: Tulkošanas un terminoloģijas centrs, 2007. 152 lpp.

Periodicals and other sources

1. Baltijas koks : BTJ : starptautisks žurnāls uzņēmīgiem cilvēkiem. Nr. 1 (maijs 2000)- Rīga : Meža Mediju centrs, 2000- sēj. ISSN 1407-6667.
2. Holz-Zentralblatt: Stuttgart. Germany: DRW-Verlags-GmbH, 1874-. [skatīts 10.12.2014.]. Pieejams: http://www.holz-zentralblatt.com
3. Timber Trade Journal: ISSN 1740-701X. [skatīts 10.12.2014.]. Pieejams: http://www.ttjonline.com/

Notes

The study course is included in the compulsory part of the professional higher education study program Wood Processing realized by Forest Faculty.