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31 Cards in this Set
- Front
- Back
what are the two classes of rivets
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solid and hollow rivets
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what is the most common way of identifying a hollow rivet
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identification details is labeled on the packaging.
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are the material and specification of American and British rivets the same
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no
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if you want to make a change to a rivet specification you must seek a permission form whom
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aircraft manufacturer
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wrt location, what is a pitch
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horizontal distance between two rivets (centre to centre) it should at least 4 times the diameter of the rivet (4D)
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wrt rivet location, what is spacing |
vertical distance between two rivets, it must be at least 3D or 4D
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wrt location, what is a land
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distance (horizontal or vertical) between rivet and the adjacent edge, it should be no less than 2D
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what is a rivet allowance
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the amount of shank that protrudes from the hole, it should be 1.5D (for normal tail) and 0.5D (for countersunk tail)
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what is rivet clearance
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the internal clearance between the rivet shank and the hole, should be about 0.1mm
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one of the surfaces that are in contact at a joint is called?
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faying
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what can you read from the following part MS20470AD4-4 |
ms = military starndard 20 = catalogue number 470 = universal head AD = aluminium alloy (field rivet) 4 = 4/32" diameter -4 = 4/16" length |
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what can you read from the following part MS20476DD4-4 |
ms = military starndard 20 = catalogue number 476 = countersunk head DD = icebox rivet 4 = 4/32" diameter -4 (dash 4) = 4/16" length |
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name two of the most jointed compounds used
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PRC and zinc chromate
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the type of rivet joint is dictated by what
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the location of the riveting i.e. laminar boundary layer area should have a single strap butt joint |
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name four different rivet joints |
lap joint single strap butt joint double strap but joint joggled lap joint |
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what type of joint is used where aerodynamic finish and strength is essential |
single strap butt joint
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what type of rivet joint would you use if an aerodynamic finish is necessary but strength could be less than that of single strap butt joint
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jogled lap joint (faying may be filled with jointing compound)
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what type of rivet joint Is used where a strength alone is essential (no aerodynamic finish required)
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double strap butt joint
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what should the rivet diameter be wrt to the thickness of a single sheet of the material that is being joined
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three times the thickness of a single sheet that is being joined |
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state a three items that would make a complete tool which could then be used to close a rivet
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rivet snap ( correct shape for the rivet head) reaction block AKA dolly pneumatic hammer (rivet gun plier) |
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describe the process that may be used to close a solid rivet
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put the rivet in the hole. while holding a dolly at the tail, apply pneumatic hammer at the head
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describe how to close a hollow rivet using lazy tong plier
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insert the rivet in to the chuck and then to the hole and pressure down the handle
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where a bit more strength is needed an avdel rivet Is used, how does and avdel rivet provide more strength than that of a head break tucker pop rivet
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because the mandrel is left in the rivet, the mandrel in the rivet provides some strength
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cherry max rivet consist of four components, what are those four components
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driving anvil locking collor mandrel sleeve |
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what should be the allowance of normal tail rivet an that of countersunk tail rivet.
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normal tail rivet = 1.5D countersunk tail = 0.75D |
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how would you rivets a thin sheets, and what is the process
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by double dimpling (double countersunk) a special dolly is used at first to form a mid stem countersunk |
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why is pre dimpling used
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where the material is too thick
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why should you use a cherry max rivet
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after removing an unserviceable rivet (solid rivet) after which access is restricted to one side only
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a rivet (pin) has a manufactured head on one end and a partially threaded shank with a recessed wrench hexagonal shape end on the other end, what is the name of the rivet
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hi-lok
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what is a rivnut
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it is a blind rivet type which can be used as an anchor nut
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how is rivnut installed
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the rivet which ha an internal thread is inserted in to the hole, a threaded screw Is then inserted in to the rivnut and tightened until rivet forms (belches at the back)
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