Flashcards
Contour Bandsaw Parts and Accessories
Cards in this deck (14)
- 1List six advantages of the contour bandsaw-Unrestricted Machining Geometry (no limitation for angles)
-Holds Sharpness: wear distributed over many teeth
-Less Power: minimum of material reduced to chips, narrow tooth kerf
-Simple Fixturing: downward cutting action
-Continuous Cutting
-Least Material Waste - 2How is the blade speed adjusted on a contour bandsaw?-variable speed handwheel
- 3What supports and guides the blade to keep it from twisting?-upper saw guide
- 4Why are the following types of saw blades used? precision-most generally used type of saw blade
- 0 degree rake angle and 30 degree back clearance
-used for fine finish - 5What general rule applies when selecting the pitch of a saw blade?-The thickness of the material to be cut determines the pitch of the blade to be used. Coarse pitch = thick materials
Thin materials = fine-pitch blade - 6Describe the following blade sets: Raker-this set has one tooth offset to the right, one offset to the left, and third tooth straight.
-used for most sawing application - 7Describe Wave blade sets-has a group of teeth offset to the right and the next group to the left
-used when cross-section of the workpiece changes, such as pipe - 8How can the following sawing factors be increased: tool life-slower tool velocity (fewer teeth per minute)
-Finer pitch band tool (more teeth and smaller gullets)
-medium feeding rate
-claw tooth (positive rake angle) - 9How can the following sawing factors be increased: accuracy-faster too velocity (more teeth per minute)
-slower feeding rate - 10Calculate the length of saw band required for the following contour bandsaws: Two 30-inch diameter pulleys with a center-to-center distance of 50 inchBlade length = 2 (Center Distance)+ (Pulley Circumference)
- 11Calculate the length of saw band required for the following contour bandsaws: Two 750-mm diameter pulleys with a center-to-center distance of 1250 mm.Blade length = 2 (Center Distance)+ (Pulley Circumference)
- 12Why are the following types of saw blades used? buttress-this saw blade has teeth spaced farther apart to provide more chip clearance
-used for thick work sections and for deep cuts in soft material - 13Why are the following types of saw blades used? claw-has a positive rake on the cutting face
-slightly less back clearance
-general applications
-faster cutting but not as smooth as others - 14Describe straight blade sets-one tooth offset to the right and the next to the left
-used for cutting light non-ferrous castings, thin sheet metal, tubing, and bakelite
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- Unit 36 Questions and Answers
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- Vincent Bergeron
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