Power Saws Flashcards
The power hacksaw works in strokes per minute what would be the strokes per minute for a large difficult to cut metal? And to a soft easy to metal ?
30 strokes per minute for hard difficult to cut metal, 165 strokes per minuet for soft material
What is the power hacksaw’s capacity
It is determined by the largest square piece that can be cut to size ranges 6 x 6 and 24 x 24
What are fully hardened blades best for on a power hacksaw
Fully hardened molybdenum high-speed steel blades best for long life best to withstand heavy feed pressure and cut faster than others
Bimetal blades on a power hack saw our best for
Bimetal blades have high-speed steel tooth edge with a tough alloy steel back to resist breakage cut through tough materials under less than ideal conditions handle irregular shapes and interrupted cuts
What are three blade materials for a contours saw bored bandsaw
High carbon steel, bimetal, tungsten carbide,
What are the three tooth forms for blade material with contour saws and bandsaws
The standard tooth, the hook tooth, the skip tooth,
Name the three set patterns for sawblades
The Raker set one tooth offset the right next to us to the left this is most common in use of general-purpose cutting quickly leaves a good surface finish
The wavy set three teeth to the right three teeth to the left the wavy set is useful on thin work pieces or workpiece is having a distinct change in cross-section or tubing
The straight set also called alternate set equal to the other two sets but cuts faster making it suitable for rough fast cutting
On the contour saw the sawblade speed is in what
Feet per minute or meters per min
Friction sawing how does it cut metal
By generating enough heat soften the steel immediately ahead of the blade heat is generated by running the saw at 50 100 times the normal cutting speed up to 15,000 surface feet per minute
