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…
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
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…
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