Unit AEF09

K1 	Describe the hazards associated with the aircraft detail fitting activities
(e.g. use of power tools, trailing leads or hoses, damaged or badly
maintained tools and equipment, use of forming and bending equipment,
using hand shears and guillotines), and how they can be minimised


K2 	Explain material selection for different applications (including material
identification systems, codes used and grain flow indicators)


K3 	Explain the principles of marking out, and the equipment used in the
aerospace industry


K4 	Describe the importance of cleaning and preparing the surfaces to be
marked out, ensuring that grain flow is taken into account where
appropriate


K5 	Describe the process for calculating bending allowances when marking
Out


K6 	Describe the importance of ensuring that marking out is undertaken from
the selected datum’s, and the possible effects of working from different
datum’s


K7 	Describe the various methods of pattern development that can be used
(e.g. parallel line; radial line; triangulation), and typical applications of
each method


K8 	Describe the importance of laying out the marking-out shapes or patterns
to maximise use of materials


K9 	Describe the need for clear and dimensional accuracy in marking out to
specification and drawing requirements


K10 	Describe the shaping methods and techniques that can be used to
produce a range of shapes/profiles on the various section materials (e.g.
sawing, shearing, drilling, filing, abrading), and the sequence in which
the operations will need to be carried out


K11 	Explain saw blade selection for different applications and materials;
methods of setting saw blades for cutting externally and internally (e.g.
hand saws, mechanical saws, band saws)
K12 	Describe the various shearing methods that can be used (e.g. tin snips,
bench shears, guillotines, cropping machines and nibbling machines)


K13 	Describe the range of hand tools and associated equipment that is used
to produce a variety of shapes, bends, curved surfaces, dished profiles


K14 	Describe the range of bending and forming machines to be used (e.g. fly
presses, bending machines, rolling machines, flanging machines)


K15 	Describe the importance of setting up a bending machine to produce a
range of forms (e.g. right-angled bends, angled bends, tray sections,
channel sections)


K16 	Describe the importance of setting up pinch/pyramid forming rolls to
produce a variety of forms (e.g. curved profiles, cylinders, cones) - this
knowledge criteria only applies if learner has chosen skill 9.5


K17 	Describe the importance of producing flanges on curved/cylindrical
components - this knowledge criteria only applies if learner has chosen
skill 10.9


K18 	Describe the methods of drilling and finishing holes in sheet and stock
materials (e.g. drills, reamers, countersinks, hole saws)


K19 	Describe the various types of files that are available; the cut of files for
different applications; the importance of ensuring that file handles are
safe and free from embedded foreign bodies


K20 	Describe the preparations and/or treatments that may need to be carried
out on the materials before and after the cutting and shaping operations


K21 	Describe the purpose and use of joint sealing agents and antielectrolysis
barriers, and the precautions to be taken when using them


K22 	Describe the problems that can occur with the cutting, shaping and
forming operations, and how these can be overcome