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29 Cards in this Set
- Front
- Back
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What views are typically used to describe simple cylindrical parts such as shafts and sleeves?
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Side View & End View
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Why are left handed threads sometimes specified?
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When natural torque would loosen a right handed thread.
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What is the purpose of finish marks?
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To show machined finished surfaces.
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Describe a Unified thread.
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Most common, 60 degree angle.
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What views are typically used to depict simple flat objects like gaskets and plates?
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Top view
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Do general assemblie's include any dimension's? and if so, which ones?
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NO!!!
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Waht views are typically found in assembly?
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Front views, Top view, and side view
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Waht are multiple lead screw threads used for?
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Rapid advancement of the part.
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When are auxiliary views used in a working drawing?
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angled parts, and to show the true size and shpe.
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The assmbly drawing of the shaft support was a ________. How do we know this?
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General assmebly: No dimension's with broken sections.
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What situation would a half section be used?
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When neccesary to show interoir and exterior in same side view
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Describe a acme thread.
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General: 29 degree included angle.
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What situation would a full section need to be used?
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When all interior Details need to be shown.
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Waht is the purpose for a 8 Microinch finished surface?
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Surfaces such as cylindar's
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Waht two units are used to indicate surface textures?
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Microinches and micrometers.
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What purpose would a 16 microinch finsihed surface need to be used?
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High speed shaft bearings and extreme Tension.
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When dimensioning angled surfaces, which dimensioning tool is nneded ?
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The dimension size with arrow (true)
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What is Thread class?
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How accuratly Part is made.
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Waht is the purpose for a 125 microinch surface finish?
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Mating surfaces held together by a bolt or rivet w/ no motion between them.
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Identify three types of assembly drawings?
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Detailed, General, and outline
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Threaded fasteners are considered to be __________ fasteners while rivets are considered to be _________.
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Temporary: pemenant.
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What is ment by thread series?
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Number of threads / outside diameter.
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Waht are 3 ways Threads can be depicted on a drawing?
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Detialed, Schematic, and simplified.
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do outline assmblie's include dimensions? if so which one's?
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yes... overall dimensions, and center to center.
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Sketch section view of 2 plates being held together by 2 bolts.
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(sketch)
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Describe a buttress thread.
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Great power in one direction.
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How does a Draftsperson indicate difference between internal and external fasteners?
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A= Ext B= Int
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What is a cell? And how does it improve Drawing performance?
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A cell is a file that can be inserted into any drawing at any scale.
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Describe a square thread.
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GHreat power in two direction's.
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