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| ORE7200 | Quality Control For Laminated Wood Materials | 3+0+0 | ECTS:7.5 | | Year / Semester | Fall Semester | | Level of Course | Third Cycle | | Status | Elective | | Department | DEPARTMENT of FOREST INDUSTRY ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Semra ÇOLAK | | Co-Lecturer | None | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The course aims to define factors affecting quality of plywood and the other veneer based wood panels, to determine the quality of veneer and adhesive used manufacturing of veneer based products |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | define and explain the importance of quality control of plywood and other veneer based panel products and factors effecting quality of plywood. | 2,3,5 | 1 | | PO - 2 : | formulate solid content, gelation time and viscosity of resin and physical and mechanical properties of plywood | 2,3,5 | 1 | | PO - 3 : | solve the some problems related to veneer and adhesives during manufacturing of plywood and other veneered materials. | 2,3,5 | 1,3 | | PO - 4 : | apply different test methods to determine physical and mechanical properties of wood veneer and veneer based products for quality control. | 2,3,5 | 1 | | PO - 5 : | analyze the flow diagram of manufacturing wood veneer and veneer based wood products. | 2,3,5 | 1 | | PO - 6 : | Students will be able to interpret and pinpoint the factors affecting the quality of veneer based wood products | 2,3,5 | 1,3 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Quality and quality control concepts, Cost of quality and poor quality, Factors effective quality in the log storage area and panel production area.Quality control for veneers: Checking thickness, moisture content, and surface roughness of veneer, Quality control for adhesive: Determination of adhesive solid content, gelation time and viscosity. Determination of physical and mechanical properties of plywood. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Basic concepts of quality and quality control, Quality costs (Direct and indirect costs, evoluation costs) eror costs, examination, examination methods | | | Week 2 | Standardization and basic targets expected standardization, erors and tolerances, Targets and benefits of quality control | | | Week 3 | Plan systems for measurable and unmeasurable properties, plan systems for continuous production, Some statistical techniques used in quality control | | | Week 4 | Review of veneered wood products productions and quality defects, veneer defects and quality control; defects orginated from veneer production or natural wood variability. Determination of students homework subjects | | | Week 5 | Colour defects of wet veneer, thickness variations and measurement of thickness, adjustment of peeling and cutting machines for homogeneous thickness, factors affecting thickness deviation and defects orginated from this defect. | | | Week 6 | Surface roughness of veneers, surface roughness measurement methods and advantages and disadvantages of these methods, control of lathe checks and splits, control of moisture content of dried veneer and used tools, gluability control before gluing. | | | Week 7 | Nondestructive evoluation of veneer quality and applied techniques, quality control of adhesive; solid content, viscosity and gel time measurement, used techniques and tools. | | | Week 8 | Determination of technological properties for veneered wood materials, standards used for this purpose (CEN, EN, ASTM norms), cutting plan for test specimens, determination of physical properties | | | Week 9 | Mid-term exam | | | Week 10 | Shear strength of plywood and other veneered wood product, factors affecting shear strength; veneer moisture content, wettability, extractive content, adhesive type and mixture, ambience conditions | | | Week 11 | Test methods used for shear strength, preperation of test specimens and storage conditions | | | Week 12 | Review the former courses and students homework presantations | | | Week 13 | Bending strength of plywood and other veneered wood products, modulus of elasticity in bending, factors affecting bending properties of veneered wood products and standards | | | Week 14 | Tension and compression strengts of plywood and other veneered wood product, modulus of elastisity in tension strength, some useage area and standard values, factors affecting tension and compression strengts | | | Week 15 | Formaldehyde emission in plywood and other veneered wood product, factors affecting fromaldehyde emission, methods used formaldehyde emission measurement and limit values (E1, E2 Quality norms), limit values accepted European and some other countries for formaldehyde. | | | Week 16 | End-of-term exam | | | |
| 1 | Baldwin, R. F.1995; Plywood And Veneer Based Products : Manufacturing Practices, Miller Freeman Inc., California 94107, USA. | | | 2 | Baldwin, R.F. 1981;Plywood Manufacturing Practices, Revised 2 nd Edition, Miller and Freeman Inc. USA. | | | 3 | Lutz, J.F. 1977; Wood veneer; Log selection, Cutting and Drying, U.S. Dep. Agric., Tech. Bull. No:1575, Madison. | | | |
| 1 | Akın, B., Çetin, C., Erol, V.,1998; Toplam Kalite Yönetimi ve ISO 9000 Kalite Güvence Sistemi, Beta Yayınları, İstanbul. | | | 2 | Wood Handbook, Wood as an engineering material. General Technical Report 113.Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 463 p. | | | 3 | Walker, John C.F., 2006; Primary Wood Processing, Springer, P.O.Box.17, 3300 AA Dordrecht Netherlands. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | | 2 | 30 | | Presentation | 12 | | 1 | 20 | | End-of-term exam | 16 | | 2 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 4 | 14 | 56 | | Laboratuar çalışması | 2 | 7 | 14 | | Arasınav için hazırlık | 5 | 8 | 40 | | Arasınav | 2 | 1 | 2 | | Uygulama | 0 | 0 | 0 | | Klinik Uygulama | 0 | 0 | 0 | | Ödev | 2 | 9 | 18 | | Proje | 0 | 0 | 0 | | Kısa sınav | 0 | 0 | 0 | | Dönem sonu sınavı için hazırlık | 8 | 4 | 32 | | Dönem sonu sınavı | 2 | 1 | 2 | | Diğer 1 | 0 | 0 | 0 | | Diğer 2 | 0 | 0 | 0 | | Total work load | | | 206 |
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