e.g. mixing glue, debarking, peeling off the veneer, hot pressing plywood sheets veneer the veneer together. heating, cooling or reacting e.g. adding the heating, cooling or reacting e.g. adding The learner explains: how steam preconditioning hardener, steam preconditioning logs, the hardener, steam preconditioning ensures the right moisture content to facilitate drying the veneer, hot pressing plywood logs, drying the veneer, hot pressing peeling; the process of cross graining and the sheets together. plywood sheets together. benefits (e.g. reduced splitting, improved The learner compares and contrasts: different stability, consistent strength). The learner describes how processing conditioning treatments for logs; different operations change for different grades, bonds of glues and how they are used for explaining the importance of tests in processing thicknesses and uses. different applications; loading a block on the operations and why operations and tests are lathe manually or by using a laser scanner; combined in a processing sequence describing the role of tests in processing clipping the veneer before or after drying; how operations and how processing operations For example the learner explains: the optimum moisture content (and associated and tests can be combined in a processing how the veneer sheets are clipped to size but testing) for gluing depends on the species, sequence if on checking for appearance, may be clipped density of veneer and gluing procedures. For example the learner describes: to a smaller size. discussing the relationship/s between how samples are subjected to boiling, The above expected learner responses are indicative processing operations, tests, and outcomes pressure, resonance and sonic tests only and relate to just part of what is required. required how a shear test is conducted to check For example the learner discusses: the strength of the glue how the gluing process and testing changes how visual tests are carried out to grade for different uses. For example, aviation for appearance plywood must be processed to particular how the moisture content is tested specifications, which calls for shear testing during the drying process. after immersion in boiling water. The above expected learner responses are The above expected learner responses are indicative only and relate to just part of what is indicative only and relate to just part of what is required. required.
e.g. mixing glue, debarking, peeling off the veneer heating, cooling or reacting e.g. adding the hardener, steam preconditioning logs, drying the veneer, hot pressing plywood sheets together. The learner describes how processing operations change for different grades, thicknesses and uses. describing the role of tests in processing operations and how processing operations and tests can be combined in a processing sequence For example the learner describes: how samples are subjected to boiling, pressure, resonance and sonic tests how a shear test is conducted to check the strength of the glue how visual tests are carried out to grade for appearance how the moisture content is tested during the drying process. The above expected learner responses are indicative only and relate to just part of what is required. the veneer, hot pressing plywood sheets together. The learner explains: how steam preconditioning ensures the right moisture content to facilitate peeling; the process of cross graining and the benefits (e.g. reduced splitting, improved stability, consistent strength). explaining the importance of tests in processing operations and why operations and tests are combined in a processing sequence For example the learner explains: how the veneer sheets are clipped to size but if on checking for appearance, may be clipped to a smaller size. The above expected learner responses are indicative only and relate to just part of what is required. veneer heating, cooling or reacting e.g. adding the hardener, steam preconditioning logs, drying the veneer, hot pressing plywood sheets together. The learner compares and contrasts: different conditioning treatments for logs; different bonds of glues and how they are used for different applications; loading a block on the lathe manually or by using a laser scanner; clipping the veneer before or after drying; how the optimum moisture content (and associated testing) for gluing depends on the species, density of veneer and gluing procedures. discussing the relationship/s between processing operations, tests, and outcomes required For example the learner discusses: how the gluing process and testing changes for different uses. For example, aviation plywood must be processed to particular specifications, which calls for shear testing after immersion in boiling water. The above expected learner responses are indicative only and relate to just part of what is required.
pt_PI_1_61_91083_v2_sep17.docx