Nt1310 Unit 3 Lab Questions
How is a file identified?
A file is often identified by the length, shape, cut and coarseness of the file. 2. What are the four different cuts found on files?
The four different cuts found on files are single, double, curved tooth and rasp.
3. Name four coarseness designations for files.
The four coarseness designations for files are rough, coarse, bastard, second cut, smooth, and dead smooth.
4. Which of the two kinds of files—single cut or double cut—is designed to remove more material?
The double-cut file
5. Why are the faces of most files slightly convex?
• To make it possible to file a flat surface by balancing the tendency to rock a file
• To return for the slight downward deflection when pressure is applied while filing
• To …show more content…
put pressure on fewer teeth so there can be deeper cuts 6. What difference is there between a blunt and a tapered file?
The difference between a blunt and a tapered file is the shape of the file. A blunt file is the same cross-sectional surface from the heel to the point, while a tapered file is larger at the heel and smaller at the point.
7. What difference exists between a mill file and an equal-sized flat file?
The difference between them is that mill files are thinner than an equal-sized flat file.
8. What is a warding file?
A warding file is a rectangular file that narrows to a small point, which makes filing easier in narrow slots and grooves.
9. An American pattern file differs in what way from a Swiss pattern file?
Swiss-pattern files are more precise; they are slimmer and have more teeth that are coarser.
10. What are the coarseness designations for needle files?
The coarseness for needle files is identified by numbers from 0 which is fine to 6 which is coarse.
11. Why should files be stored so they do not touch each other?
Files should be stored away from each other because if they touch, the teeth will break off or become dull.
12. What happens if too much pressure is applied when filing?
If too much pressure is applied while filing, the teeth will break off. The work surface will also be scratched.
13. What causes a file to get dull?
Files get dull when they come in contact with each other, are being rubbed over the work without any applied pressure, are being filed too fast or used on hard material.
14. Why should a handle be used on a file?
Handles should be used on a file because unprotected tangs may lead to serious injuries.
15. Why should work pieces be measured often?
Measuring the work piece for flatness and size ensures that the filing is done in the right place and that the filing is stopped before a piece is undersize.
16. What happens when a surface being filed is touched with the hand or fingers?
When the surface is touched, it becomes lubricated with a coating of grease from the fingers or hand. This causes the file to slip over without cutting, which causes the file to dull.
17. How does the hardness of a work piece affect the selection of a file?
The hardness of a work piece affects the selection of a file since soft work pieces require files with coarser teeth and harder material require fine-toothed files.
18. How can rounded edges be avoided when a workpiece is draw filed?
Rounded edges can be avoided by making sure the draw filing stroke is short enough so that it never slips over the work. However, one must pay attention to the fact that no hollow surface should be created when the strokes are too short.
19. Should pressure be applied to a file on the return stroke?
No, pressure is only applied on the cutting stroke.
20. Why is a round file rotated while it is being used?
A round file is rotated while being used because rotating it clockwise while filing makes the cut better and improves the look of the
surface.
A file is often identified by the length, shape, cut and coarseness of the file. 2. What are the four different cuts found on files?
The four different cuts found on files are single, double, curved tooth and rasp.
3. Name four coarseness designations for files.
The four coarseness designations for files are rough, coarse, bastard, second cut, smooth, and dead smooth.
4. Which of the two kinds of files—single cut or double cut—is designed to remove more material?
The double-cut file
5. Why are the faces of most files slightly convex?
• To make it possible to file a flat surface by balancing the tendency to rock a file
• To return for the slight downward deflection when pressure is applied while filing
• To …show more content…
put pressure on fewer teeth so there can be deeper cuts 6. What difference is there between a blunt and a tapered file?
The difference between a blunt and a tapered file is the shape of the file. A blunt file is the same cross-sectional surface from the heel to the point, while a tapered file is larger at the heel and smaller at the point.
7. What difference exists between a mill file and an equal-sized flat file?
The difference between them is that mill files are thinner than an equal-sized flat file.
8. What is a warding file?
A warding file is a rectangular file that narrows to a small point, which makes filing easier in narrow slots and grooves.
9. An American pattern file differs in what way from a Swiss pattern file?
Swiss-pattern files are more precise; they are slimmer and have more teeth that are coarser.
10. What are the coarseness designations for needle files?
The coarseness for needle files is identified by numbers from 0 which is fine to 6 which is coarse.
11. Why should files be stored so they do not touch each other?
Files should be stored away from each other because if they touch, the teeth will break off or become dull.
12. What happens if too much pressure is applied when filing?
If too much pressure is applied while filing, the teeth will break off. The work surface will also be scratched.
13. What causes a file to get dull?
Files get dull when they come in contact with each other, are being rubbed over the work without any applied pressure, are being filed too fast or used on hard material.
14. Why should a handle be used on a file?
Handles should be used on a file because unprotected tangs may lead to serious injuries.
15. Why should work pieces be measured often?
Measuring the work piece for flatness and size ensures that the filing is done in the right place and that the filing is stopped before a piece is undersize.
16. What happens when a surface being filed is touched with the hand or fingers?
When the surface is touched, it becomes lubricated with a coating of grease from the fingers or hand. This causes the file to slip over without cutting, which causes the file to dull.
17. How does the hardness of a work piece affect the selection of a file?
The hardness of a work piece affects the selection of a file since soft work pieces require files with coarser teeth and harder material require fine-toothed files.
18. How can rounded edges be avoided when a workpiece is draw filed?
Rounded edges can be avoided by making sure the draw filing stroke is short enough so that it never slips over the work. However, one must pay attention to the fact that no hollow surface should be created when the strokes are too short.
19. Should pressure be applied to a file on the return stroke?
No, pressure is only applied on the cutting stroke.
20. Why is a round file rotated while it is being used?
A round file is rotated while being used because rotating it clockwise while filing makes the cut better and improves the look of the
surface.